**POLAR Spacecraft Status As of: Tues, 25 Nov 03 12:00 EST**

*(changes from last week in bold border)*

+----------+--------+--------+--------+--------+---------+---------+
| **Subs   | ##     | **NOAA | **NOAA | **NOAA | **NOA   | ##### N |
| ystem/** | ### NO | -12D** | -14J** | -15K** | A-16L** | OAA-17M |
|          | AA-11H |        |        |        |         |         |
| **Com    |        | S      | S      | BACKUP | PRIMARY | PRIMARY |
| ponent** | S      | tandby | tandby | AM     | PM      | AM      |
|          | tandby | AM     | AM     |        |         |         |
|          | PM     |        |        | GAC    | GAC&LAC | GAC&LAC |
|          |        | STIP   | STIP   | data   | data    | data    |
|          | STIP   | data   | data   | only   |         |         |
|          | data   | only   | only   |        |         |         |
|          | only   |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **LA     | 09     | 05     | 12     | 05     | 0       | 6/24/02 |
| UNCHED** | /23/88 | /14/91 | /30/94 | /13/98 | 9/21/00 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **CNTL   | OBP2   | OBP2   | OBP2   | OBP2   | OBP2    | OBP2    |
| OBP**    |        |        |        |        |         |         |
|          |        |        | OBP1   |        |         |         |
|          |        |        | inope  |        |         |         |
|          |        |        | rative |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BUS**  | A-BUS  | B-BUS  | B-BUS  | B-BUS  | B-BUS   | B-BUS   |
|          |        |        |        |        |         |         |
|          | XSU-1  | XSU-1  | XSU2   | XSU-1  | XSU-1   | XSU-1   |
|          |        |        | (XSU1  |        |         |         |
|          |        |        | inop)  |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO     | NO      | NO      |
| VETO**   |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | [RGYRO | [YGC   | [N     | [N     | #####   | #####   |
| *ADACS** | Mode]  | Mode]  | ominal | ominal | # [Nomi | # [Nomi |
|          | {.unde | {.unde | Mode]  | Mode]  | nal Mod | nal Mod |
|          | rline} | rline} | {.unde | {.unde | e]{.und | e]{.und |
|          |        |        | rline} | rline} | erline} | erline} |
|          | (Y,    | Gyro   |        |        |         |         |
|          | Z      | cha    | Rgm    | Rg     | R       | R       |
|          | -Gyros | ns=XYZ | ode=Di | mode=M | gmode=D | gmode=D |
|          | F      |        | sabled | onitor | isabled | isabled |
|          | ailed) | Yaw    |        |        |         |         |
|          | R      | u      | Gyro   | Gyro-3 | Gyro    | Gyro    |
|          | educed | pdates | cha    | Of     | ch      | ch      |
|          | Gyro   | di     | ns=XYZ | f/Anom | ans=AAA | ans=BBB |
|          | S/W.   | sabled |        |        |         |         |
|          |        | 10/1   | SS     | Gyro   | Gyro3   |         |
|          | X &S   |        | check  | cha    | des     |         |
|          | gyros  | RG     | Di     | ns=AAB | elected |         |
|          | only   | mode=M | sabled |        |         |         |
|          |        | onitor | when   |        | Gyro3   |         |
|          |        |        | mo     |        | TOAR    |         |
|          |        |        | de=YGC |        | 427     |         |
+----------+--------+--------+--------+--------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI    | PRI     | PRI     |
|          |        |        |        |        |         |         |
|          | BU     | BU     | BU     | daily  | Daily   | Daily   |
|          | random | random | random | bias   | Bias    | Bias    |
|          | e      | e      | e      | -8     | --5.1   | --1.7   |
|          | nables | nables | nables | mSec   | mSec    | mSec    |
|          |        |        | daily  |        |         |         |
|          | daily  | +      | bia    |        |         |         |
|          | bias   | 1000mS | s--7.3 |        |         |         |
|          | +      | on     | mSec   |        |         |         |
|          | 70mSec | 10/17  |        |        |         |         |
|          | (c     |        |        |        |         |         |
|          | ontrol | Plan   |        |        |         |         |
|          | side   | daily  |        |        |         |         |
|          | only)  | ETCUP  |        |        |         |         |
|          |        | bias   |        |        |         |         |
|          |        | of     |        |        |         |         |
|          |        | --6.5  |        |        |         |         |
|          |        | mS     |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **CLOCK  | 2      | 2      | 2      | 2      | 2       | 2       |
| DIV**    |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **MIRP** | ON     | Ex     | Ex     | Ex     | E       | I       |
|          |        | ternal | ternal | ternal | xternal | nternal |
|          |        | Synch  | Synch  | Synch  | Sync    | Synch   |
|          |        |        |        | R      |         |         |
|          |        | R      | R      | ephase | Rephase | Rephase |
|          |        | ephase | ephase | Daily. | Daily   | Enabled |
|          |        | E      | Daily  |        |         |         |
|          |        | nabled |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **TIP    | 1      | 1      | 1      | 2      | 1       | 1       |
| SIDE**   |        |        |        |        |         |         |
|          |        |        |        | ####   | Analog  |         |
|          |        |        |        | #### S | telem   |         |
|          |        |        |        | ince 4 | d       |         |
|          |        |        |        | /24/03 | rifting |         |
+----------+--------+--------+--------+--------+---------+---------+
| **DTRs** | 1A,    | 1, 3,  | 1, 2B, | 1, 2,  | 1       | 1,2,3,4 |
|          | 2B, 3, | 4, 5B  | 3A, 5  | 3, 4   | ,2,3,4A |         |
|          | 4A     |        | Safe   | Saf    |         | Safes   |
|          | Safes  | Safe   | state- | estate | Sa      | tate=1B |
|          | tate - | state- | 1B     | 1B EOT | festate |         |
|          | 2B,    | 1B     |        |        | 3A      | D       |
|          |        |        |        |        |         | TR2-SSR |
|          |        |        |        |        | 4B TOAR |         |
|          |        |        |        |        | 418     | DTR5    |
|          |        |        |        |        |         | TOAR    |
|          |        |        |        |        | (STIP   | 420     |
|          |        |        |        |        | only)   |         |
+----------+--------+--------+--------+--------+---------+---------+
| **VTX**  | OFF    | OFF    | OFF    | #1     | INOP    | #2      |
|          |        |        |        |        |         |         |
| (APT     |        | 3 Nov  | Since  | 137.50 | OFF     | 137.62  |
| data)    |        | until  | 8      | MHZ    | since   | MHZ     |
|          |        | 7 Dec  | /14/02 |        | 1       |         |
|          |        | Co     |        |        | 1/15/00 |         |
|          |        | nflict |        |        |         |         |
|          |        | with   |        |        |         |         |
|          |        | N15    |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BTX**  | #2     | #1     | #2     | #1     | #1      | ###     |
|          |        |        |        |        |         | #### #2 |
|          | 137.77 | 136.77 | 137.77 | 137.35 | 137.35  |         |
|          | MHZ    | MHZ    | MHZ    | MHZ    | MHZ     | 137.77  |
|          |        |        |        |        |         | MHZ     |
+----------+--------+--------+--------+--------+---------+---------+
| **STX**  | 3 --   | 1 --   | 3 --   | 1, 2,  | 1 --    | 3 --    |
|          | TIP    | HRPT;  | HRPT   | 3 -    | HRPT;   | HRPT    |
| #        |        |        |        | deg    |         |         |
| 1=1698.0 | 1,2 -  | 2,3 -  | 2, 1   | raded; | 2--     | TOAR424 |
| mhz      | Pl     | Pl     | --     |        | Pl      | low     |
|          | ayback | ayback | Pl     | ###    | ayback; | power   |
| #        |        |        | ayback | ### 2  |         |         |
| 2=1702.5 |        |        |        | Omni-- | 4 --    | 1&2     |
| mhz      |        |        |        | HRPT;  | P       | P       |
|          |        |        |        |        | layback | layback |
| #        |        |        |        | #      |         |         |
| 3=1707.0 |        |        |        | #####  | 3 low   | 4 --    |
| mhz      |        |        |        |        | power   | TIP     |
|          |        |        |        | #      | unused  |         |
| #        |        |        |        | #####  |         | STX4    |
| 4=2247.5 |        |        |        | 4- Pla |         | tests   |
| mhz      |        |        |        | yback  |         | at Sval |
+----------+--------+--------+--------+--------+---------+---------+
| #        | [Array | [Ar    | [Array | [Array | [Array  | [Array  |
| ## POWER | Off    | rayOff | Off    | Off    | Off     | Off.    |
|          | -30]   | -60]   | -55]   | -45]   | -4      | --3     |
| (Array   | {.unde | {.unde | {.unde | {.unde | 0]{.und | 5]{.und |
| offset,  | rline} | rline} | rline} | rline} | erline} | erline} |
| charge   |        |        |        |        |         |         |
| and      | Since  | since  | Since  | Since  | Since   | Since   |
| eclipse  | 6      | 7      | 8      | 1      | 7/16/02 | 7/1/02  |
| states,  | /19/02 | /30/03 | /21/03 | /25/01 |         |         |
| sun      |        |        |        |        | Eclipse | Eclipse |
| angle)   | E      | FULL   | FULL   | FULL   | all     | all     |
|          | clipse | SUN    | SUN    | SUN    | year    | year    |
| **SOLAR  | all    |        |        |        |         |         |
| E        | year   | Sun    | Sun    | Sun    | Sun     | Sun     |
| CLIPSE** |        | Angle  | Angle  | Angle  | Angle   | Angle   |
|          | Sun    | at 20  | at 26  | at 17  | 55      | at 67   |
| **23&24  | angle  | U      | U      | U      |         |         |
| Nov 03** | 77     | ptrend | ptrend | ptrend | UpTrend | Start   |
|          |        | s      | to 26  | to 18  | to 59   | down    |
| **No     | Start  | tarted | in End | in     | in mid  | trend   |
| adverse  | Dow    | to 25  | U      | m      | Feb 04  | to 60   |
| effects  | ntrend | degs   | ptrend | id-Dec |         | early   |
| on any   | to 71  | m      |        |        | Batts   | Feb 04  |
| spac     | degs   | id-Jan | Steady | Batts  | 1-3=    |         |
| ecraft** | on     | 04.    | Trend  | 1-3=   | LRC     | Batts   |
|          |        |        |        | LRC    |         | 1-3=    |
|          | 1 Feb  | Sun    | Batts  |        | V/T=4/8 | LRC     |
|          | 04     | sensor | 1-3=   | V      |         |         |
|          |        | s      | LRC    | /T=7/9 |         | V/T=    |
|          | Ba     | hading |        |        |         | 4/8     |
|          | tts1,2 |        | Batts  |        |         |         |
|          | ,3=LRC | Until  | 1&3V/  |        |         |         |
|          |        | 1      | T=8/11 |        |         |         |
|          | VT1    | 2/5/03 |        |        |         |         |
|          | ,2=6/8 |        | Batt2  |        |         |         |
|          |        | Batts  | V      |        |         |         |
|          | VT3 =  | 1      | T=9/11 |        |         |         |
|          | 8/11   | &2=LRC | )      |        |         |         |
|          |        |        |        |        |         |         |
|          | Charge | V/T=4  | Shunt  |        |         |         |
|          | state  |        | De     |        |         |         |
|          | safe   |        | graded |        |         |         |
|          |        |        |        |        |         |         |
|          | trip   |        |        |        |         |         |
|          | di     |        |        |        |         |         |
|          | sabled |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | INOP   | N      | DE     | N      | Rec     | ###     |
| *AVHRR** |        | ominal | GRADED | ominal | overing | Nominal |
|          | Failed |        |        |        | occ     |         |
|          | Power  |        | Scan   | Rare   | asional | 3A-B    |
|          | S      |        | motor  | Scan   | scan    | switch  |
|          | upply. |        | e      | motor  | motor   | enabled |
|          | P      |        | rratic | s      | current |         |
|          | owered |        | perfo  | urges. | surges. |         |
|          | Off    |        | rmance | Last   | Last    |         |
|          | since  |        | STAT   |        | surge   |         |
|          | 1994   |        | US=RED | In     | 1       |         |
|          |        |        |        | cident | 1/11/03 |         |
|          |        |        |        | 8/9/03 |         |         |
|          |        |        |        |        | Chan 3B |         |
|          |        |        |        |        | only.   |         |
+----------+--------+--------+--------+--------+---------+---------+
| **A      |        |        |        | ON     | ON      | O       |
| MSU-A1** |        |        |        |        |         | FF/INOP |
|          |        |        |        | Ch14   | TOAR    |         |
|          |        |        |        | inope  | 415 on  | Since   |
|          |        |        |        | rative | primary | 1       |
|          |        |        |        |        | PLLO    | 0/30/03 |
|          |        |        |        | Ch11   | chans   |         |
|          |        |        |        | inope  | 9-14    | Ino     |
|          |        |        |        | rative | bias    | perable |
|          |        |        |        |        | shift.  | Red in  |
|          |        |        |        |        |         | status. |
|          |        |        |        |        | TOAR    | S       |
|          |        |        |        |        | 417 on  | urvival |
|          |        |        |        |        | Backup  | heat    |
|          |        |        |        |        | PLLO    | on.     |
|          |        |        |        |        | inop    | TOAR    |
|          |        |        |        |        |         | 431     |
+----------+--------+--------+--------+--------+---------+---------+
| **A      |        |        |        | ON     | ON      | ON      |
| MSU-A2** |        |        |        |        |         |         |
|          |        |        |        |        | Space   |         |
|          |        |        |        |        | Pos     |         |
|          |        |        |        |        | ition-2 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | ON     | ON      | ON      |
| AMSU-B** |        |        |        |        |         |         |
|          |        |        |        | Bias   | Space   |         |
|          |        |        |        | in All | Pos     |         |
|          |        |        |        | Chans. | ition-3 |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Motor  |         |         |
|          |        |        |        | c      |         |         |
|          |        |        |        | urrent |         |         |
|          |        |        |        | s      |         |         |
|          |        |        |        | urges, |         |         |
|          |        |        |        | most   |         |         |
|          |        |        |        | recent |         |         |
|          |        |        |        | 11     |         |         |
|          |        |        |        | /20/03 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| ### HIRS | #####  | INOP   | ON     | Reco   | ON      | ON      |
|          | ## OFF |        |        | vering |         |         |
|          |        | Filter | Opera  |        | Nominal | 1 Pixel |
|          | #####  | Wheel  | tional | From   |         | cross   |
|          | ### Fi | turned |        | 12 Nov |         | track   |
|          | lter W | OFF    |        | Major  |         | misal   |
|          | heel A | 10/    |        | FW     |         | ignment |
|          | nomaly | 17/02. |        | a      |         | .       |
|          |        | Elect  |        | nomaly |         |         |
|          |        | ronics |        |        |         |         |
|          |        | On     |        | .I     |         |         |
|          |        |        |        | magery |         |         |
|          |        |        |        | im     |         |         |
|          |        |        |        | proved |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | FW     |         |         |
|          |        |        |        | H      |         |         |
|          |        |        |        | eaters |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | OFF 18 |         |         |
|          |        |        |        | Nov    |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | FW in  |         |         |
|          |        |        |        | Hi     |         |         |
|          |        |        |        | power, |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **MSU**  | ###    | INOP   | ON     |        |         |         |
|          | # INOP |        |        |        |         |         |
|          |        | Scan   | Scan   |        |         |         |
|          | OFF,   | Motor  | motor  |        |         |         |
|          | A      | OFF    | and    |        |         |         |
|          | ntenna | since  | a      |        |         |         |
|          | Failed | 3      | ntenna |        |         |         |
|          |        | /12/03 | pr     |        |         |         |
|          |        |        | oblems |        |         |         |
|          |        | Elect  |        |        |         |         |
|          |        | ronics |        |        |         |         |
|          |        | ON.    |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SSU**  | ON     |        | ON     |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **DCS**  | ON     | ON     | ON     | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          |        |        |        |        | Nominal | Nominal |
+----------+--------+--------+--------+--------+---------+---------+
| **SARR** | ON     |        | ON     | ON-A   | ON-A    | ON-A    |
|          |        |        |        |        |         |         |
|          | Low    |        |        | All    | All AGC | Nominal |
|          | signal |        |        | AGC    | Mode    |         |
|          |        |        |        | Mode   |         | All AGC |
|          |        |        |        |        | (B-side | Mode    |
|          |        |        |        | Interm | in FG   |         |
|          |        |        |        | ittent | mode)   |         |
|          |        |        |        | fa     |         |         |
|          |        |        |        | ilures | 243 MhZ |         |
|          |        |        |        | for    | INOPE   |         |
|          |        |        |        | 243MHz | RATIVE. |         |
|          |        |        |        | A&B    |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SARP** | ON     |        | OFF    | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          | N      |        | Failed | N      | Nominal | Nominal |
|          | ominal |        | Power  | ominal |         |         |
|          |        |        | Supply |        | RCVR    |         |
|          |        |        |        | RCVR   | B/W = 2 |         |
|          |        |        |        | B/W =  |         |         |
|          |        |        |        | 2      |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SEM**  |        | ON     | ON     | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          |        | El     | El     | N      | Nominal | Nominal |
|          |        | ec-CH- | ec-CH- | ominal |         |         |
|          |        | HVPS=4 | HVPS=0 |        | E-CDEM  | E-CDEM  |
|          |        |        |        | E      | -HVPS=4 | -HVPS=2 |
|          |        | Pr     | Pr     | -CDEM- |         |         |
|          |        | ot-CH- | ot-CH- | HVPS=2 | Plans   | P-CDEM  |
|          |        | HVPS=0 | HVPS=0 |        | to      | -HVPS=3 |
|          |        |        |        | P      | change  |         |
|          |        |        | 1 of 4 | -CDEM- | e-cdem  |         |
|          |        |        | Tele   | HVPS=0 | to      |         |
|          |        |        | scopes |        | level 5 |         |
|          |        |        | inope  |        |         |         |
|          |        |        | rative |        | P-CDEM  |         |
|          |        |        |        |        | -HVPS=4 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SBUV** | INOP   |        | Reco   |        | ON      | ON      |
|          |        |        | vering |        |         |         |
|          | G      |        |        |        | Backup  | Nominal |
|          | rating |        | Major  |        | D       |         |
|          | motor  |        | g      |        | iffuser | Anode   |
|          | OFF    |        | rating |        | in use  | Mode    |
|          | since  |        | drive  |        | since   |         |
|          | 5      |        | a      |        | 6/      |         |
|          | /29/03 |        | nomaly |        | 16/03.) |         |
|          |        |        | s      |        |         |         |
|          | Elect  |        | tarted |        | Primary |         |
|          | ronics |        | on     |        | =TOAR   |         |
|          | and    |        | 11/20  |        | 426     |         |
|          | Heater |        | at     |        |         |         |
|          | remain |        | 01:50. |        | antenna |         |
|          | ON     |        | Re     |        | deploy  |         |
|          |        |        | covery |        | a       |         |
|          |        |        | ops    |        | nomaly, |         |
|          |        |        | succ   |        |         |         |
|          |        |        | essful |        | AMSU    |         |
|          |        |        | on     |        | EMI     |         |
|          |        |        | 11/20  |        | causing |         |
|          |        |        | at     |        | erratic |         |
|          |        |        | 19:30. |        | B       |         |
|          |        |        |        |        | ehavior |         |
|          |        |        | Plan   |        | in PMT  |         |
|          |        |        | Flex   |        | cathod, |         |
|          |        |        | Memory |        | range 3 |         |
|          |        |        | re     |        |         |         |
|          |        |        | config |        |         |         |
|          |        |        | on     |        |         |         |
|          |        |        | 11/25  |        |         |         |
|          |        |        | in     |        |         |         |
|          |        |        | re     |        |         |         |
|          |        |        | sponse |        |         |         |
|          |        |        | to     |        |         |         |
|          |        |        | an     |        |         |         |
|          |        |        | omaly. |        |         |         |
|          |        |        | Re     |        |         |         |
|          |        |        | ducing |        |         |         |
|          |        |        | G      |        |         |         |
|          |        |        | rating |        |         |         |
|          |        |        | drive  |        |         |         |
|          |        |        | "low   |        |         |         |
|          |        |        | end"   |        |         |         |
|          |        |        | range  |        |         |         |
|          |        |        | to     |        |         |         |
|          |        |        | --730  |        |         |         |
|          |        |        | (from  |        |         |         |
|          |        |        | -      |        |         |         |
|          |        |        | -750). |        |         |         |
|          |        |        |        |        |         |         |
|          |        |        | R      |        |         |         |
|          |        |        | educed |        |         |         |
|          |        |        | oper   |        |         |         |
|          |        |        | ations |        |         |         |
|          |        |        | s      |        |         |         |
|          |        |        | tarted |        |         |         |
|          |        |        | 6/5/03 |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | N/A    | ON      | ON      |
| SADPOS** |        |        |        |        |         |         |
|          |        |        |        |        | ENABLED | ENABLED |
|          |        |        |        |        |         |         |
|          |        |        |        |        | D       |         |
|          |        |        |        |        | isabled |         |
|          |        |        |        |        | 23 Nov  |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | RE-     |         |
|          |        |        |        |        | Enabled |         |
|          |        |        |        |        | 24 Nov  |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | MFactor |         |
|          |        |        |        |        | =50%    |         |
+----------+--------+--------+--------+--------+---------+---------+
| **T      | N      | N      | N      | HIRS   | Nominal | TCE3H   |
| HERMAL** | ominal | ominal | ominal | FW     |         | Batt 2A |
|          |        |        |        | Heater | TCE24   | heater  |
| Heaters, |        |        |        | OFF 18 | turned  | turned  |
| louvers  |        |        |        | Nov 03 | off     | off     |
|          |        |        |        |        | (AVHRR  | 8/26/03 |
| TCE's    |        |        |        | TCE2   | H&L)    | TOAR    |
|          |        |        |        | 4L&25L | 9/23/03 | 428     |
|          |        |        |        | (HIRS  |         |         |
|          |        |        |        | &      | AVHRR   | AMSU-A1 |
|          |        |        |        | AVHRR) | in      | s       |
|          |        |        |        | failed | warming | urvival |
|          |        |        |        | 5      | trend   | heaters |
|          |        |        |        | /13/98 |         | on      |
|          |        |        |        |        |         | 1       |
|          |        |        |        | RCE    |         | 0/29/03 |
|          |        |        |        | ther   |         |         |
|          |        |        |        | mostat |         |         |
|          |        |        |        | failed |         |         |
|          |        |        |        | 5      |         |         |
|          |        |        |        | /13/98 |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Cold   |         |         |
|          |        |        |        | season |         |         |
|          |        |        |        | ended, |         |         |
|          |        |        |        | trend  |         |         |
|          |        |        |        | re     |         |         |
|          |        |        |        | versed |         |         |
+----------+--------+--------+--------+--------+---------+---------+
|          | *      | *      | *      | *      | **N16** | **N17** |
|          | *N11** | *N12** | *N14** | *N15** |         |         |
+----------+--------+--------+--------+--------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-11 N11 went through the solar eclipse on 23 Nov (at 22:51Z) with no
mission impacting effects. In preparation for this

eclipse, EMOSS engineers commanded batteries 1 & 2 to Medium Rate Charge
(battery 3 remained at Low Rate because it is degraded) approximately 1
hour before the eclipse event began. There were some concerns about the
potential for N11 attitude control mode to autonomously switch into
gyroless control but, using the EMOSS solar eclipse model as a guide,
engineers determined that this eventuality should not occur and
recommended plans to NOAA accordingly. Ultimately, the autonomous swap
did not occur. Once the eclipse event was completed, batteries 1 & 2
were commanded back to Low Rate Charge. Subsequent analysis of stored
telemetry revealed that the eclipse did draw battery-1 charge state down
to 20.25 amp hours, a level that is very close to power safe state
trigger point of 19.6. Therefore it is possible that the switch to
Medium Rate charge prior to the eclipse might have made the difference
between going into safe state and remaining out of it. EMOSS engineers
Jim Sheperd and Jeff Devine remained at the SOCC for the duration of
preparation and completion reconfigurations for this solar eclipse
event.

NOAA-12. N12 (a full sun spacecraft) also experienced the solar eclipse
event on two successive revs on 23 Nov starting at

21:47Z. Using the EMOSS solar eclipse model, engineers recommended to
NOAA that no reconfigurations would be necessary for N12 during this
eclipse. Subsequent analysis of stored telemetry on N12 since this event
has shown that there were no mission impacting effects on this
spacecraft during the eclipse.

Using the EMOSS developed Time Stamp File process, for the first time,
engineers have been able to determine the actual clock
[drift]{.underline} rate for N12 (approximately -6.5 msecs daily) after
analyzing several weeks of N12 TSF data. (N12 was incorporated into the
POES TSF process approximately 7 weeks ago.) With this knowledge, EMOSS
engineers can now stop the clock drift on N12 as it has done with all
the other POES spacecraft with operational AVHRR's. Therefore, engineers
will be implementing a new, first time daily ETCUP value of +6.5 mSecs
sometime within the next three weeks. Jim Sheperd is POC.

NOAA-14: The N14 AVHRR scan motor remained anomalous throughout the past
reporting period. PIDES remains inoperable

for the second week in a row so no imagery analysis could be conducted
by EMOSS engineers.

N14 (a full sun spacecraft) experienced 2 minor and 1 major solar
eclipses on successive orbits starting at 20:55Z on 23

Nov. Like N12, analysis by EMOSS engineers determined that no
reconfigurations would be necessary prior to this eclipse event to
protect the N14 spacecraft and recommended to NOAA that no changes be
made. Subsequent analysis of stored telemetry on N14 since this event
has shown that there were no mission impacting effects on this
spacecraft from this eclipse including on the power subsystem where bus
voltage remains steady and shunt voltage less than maximized
(illustration 1).

On 20 Nov at 01:50, a major anomaly occurred on the N14 SBUV. At that
time the N-14 SBUV was commanded by the stored command table to go from
Flex Memory 0 to Flex Memory 3; the giant step memory segment (grating
positions 600, -750). After going to a grating position of 600, the
grating drive then moved on to --900 where it apparently ceased. At that
point, the drive (and other SBUV component) temperatures began to rise.
At 03:45Z, the grating drive temperature reached 25.9 degree, the
threshold which triggers an automatic on board safety macro that powered
off the grating drive. Just before commanding itself off, the grating
position shifted further to -936. Recovery operations began at 16:00Z
where the grating motor power was toggled on and off several times in
the hope of "breaking though" whatever might be obstructing the drive.
This toggling operation was repeated on the next support at 17:40Z. In
neither support was anything other than rudimentary movement on the
grating drive observed. However, on a support at 19:30Z, prior to
toggling the grating motor power on, the SBUV grating drive was switched
to Flex memory 3 and the giant step memory segment. Thereupon, the
grating motor power was again toggled on and off several times. On the
4^th^ toggle on, the drive broke through and began to show the full
range of Flex 3, (600 to --750) movement. Several minutes later, the
SBUV was commanded back to Flex 0, after which it read all twelve
correct values for that memory segment, ranging from 526 to --673. It
has continued to operate nominally since that time (illustration 2a &
b).

On 24 Nov an N14 SBUV anomaly resolution meeting was convened and
supported by EMOSS POC Will Kent. At

this meeting, a consensus was reached to change half of the mini giant
step memory segment (Flex 3) words from position -750 to -730. Over the
past half year we have been going to Flex 3 for about 10 minutes a week
(Thursday blind orbits). This is a maintenance procedure that is
supposed to \"push obstructions clear" from the current full operating
range of the grating drive. The full operating range of this instrument
is now less than it was originally (primarily because of its 9+ years of
operation). Currently Flex Memory 0's operates between positions 526 and
--673 while Flex 3 is between +600 to --750. (Although the recent
anomaly demonstrated that FM3 range actually goes beyond those ranges by
\~75 positions on either side.) The anomaly resolution team proposed
that because the +600 side has not shown errors and the -750 side has
shown an increasing number of errors over the last 6 months (and is also
the area where the anomaly occurred) that the new "low end" area of the
operating range should be "brought in" slightly to --730. On 25 Nov at
20:00Z, EMOSS POC Will Kent will direct an upload to the N14 SBUV of a
CP he created that will make this change to -730. With this new
operating range in place (hopefully clear of any obstructions) it is
possible that the operational life of this SBUV may be prolonged well
beyond that which might have been expected just a week earlier.

NOAA-15: The N15 HIRS recovered nicely during the past reporting period
(after the filter wheel heater was turned off on 18

Nov), with the filter motor current retreating back to nominal
(illustration 3), synch status steady, period monitor values nominal and
imagery improving throughout the week. (NOTE: EMOSS could not perform
HIRS imagery analysis because the PIDES system has been inoperable for
the past 2 weeks. Various product users provided the imagery quality
information to EMOSS.) No additional operations or reconfiguration are
planned at this time for this instrument.

At almost the exact time that the N14 SBUV was returning to nominal
operation, on 20 Nov the N15 AMSU-B scan motor current surged to the
second highest level seen in the past 3 years, accompanied by a surge in
scan motor temp. No reports of imagery degradation were received by
EMOSS in regard to this surge (and, as stated, PIDES has not been
available to EMOSS engineers for 2 weeks). However, by 01:00 on 21 Nov,
the scan motor had returned to nominal values where it has remained
since (illustration 4). In addition, the N15 AVHRR was nominal
throughout the week.

N15 (a full sun spacecraft) also experienced the solar eclipse event on
two successive revs on 23 Nov starting at

21:21Z. Using the EMOSS solar eclipse model, engineers recommended to
NOAA that no reconfigurations should be necessary for N15 during this
eclipse. Subsequent analysis of stored telemetry on N15 since this event
has shown that there were no mission impacting effects on this
spacecraft from the eclipse (illustration 5).

Coordination on N15 Rgyro testing continues although no date has yet
been determined for this test. EMOSS engineers are awaiting the result
of node tests to be performed at the factory in order to advance the
pre-test analysis for what can be expected during an actual N15 Rgyro
operation. EMOSS engineer Carl Gliniak drafted a letter requesting this
nodal testing and submitted to NOAA management for their review and
approval.

While investigating the requirements and implications of increasing the
command watchdog timer on N15 to 10.5 hours (from its current 9 hours)
EMOSS engineer Jon Woodward determined that a flight software patch
would need to be generated and uploaded to the spacecraft before this
change can be implemented. Rather than spend the time/money on such a
project, EMOSS engineers have determined several "lower tech" methods by
which the objective of preventing an autonomous swap to clear mode can
be avoided. These methods involve the use of Greta, STK, MS Excel and
SITARS to flag schedule gaps where the risk of such a swap could occur
thus allowing the controllers more opportunity to call up a pass to send
N15 a command before a swap occurs. Jon Woodward, Kim Kolb and Jeff
Devine are EMOSS POC for meeting this objective.

NOAA-16: The N16 AVHRR scan motor current was generally nominal although
less stable than desired during the past week

The scan motor current continues to show a tendency to trend higher
although it remains within what could be considered nominal values, most
of the time (illustration 6). However, EMOSS has heard no reports of
AVHRR imagery degradation, synch delta values are very stable
(illustration 7), and the AVHRR thermal trend has "topped out" and
appears to be reversing itself thus negating the concern about
overheating the payload (illustration 8). Unfortunately, this thermal
reversal may also prove problematic since keeping the AVHRR warmer has
been the objective for keeping the scan motor lubricant less viscous.
Monitoring continues.

There were no out-of-spec yaw updates experienced by N16 during the past
week (illustration 9) which was especially auspicious since one of the
yaw updates occurred right in the middle of the solar eclipse with the
solar array occluded by more than 50%. In the weeks preceding this
eclipse the EMOSS model predicted that a yaw update would occur right in
the middle of this rather significant event for N16 (90% array
occlusion). With that possibility in mind, there was some consideration
given to commanding the spacecraft to "Unforced" YGC mode in order to
prevent an autonomous switch to YGC mode when the yaw update occurred in
the middle of the eclipse. Ultimately NOAA decided not to command to YGC
mode and instead had EMOSS engineers standing by in the SOCC following
the eclipse to command the spacecraft back to nominal if it indeed had
swapped itself to YGC. As predicted (illustration 10) the update did
occur during the eclipse but the update was nominal anyway and no switch
to YGC occurred.

A second area of concern during the eclipse was the N16 SADPOS software
module. The EMOSS model predicted that the triggering conditions of this
module taking control of the solar array would come very close to being
met during the eclipse (9 minutes at 80% occlusion). Rather than risk
this eventuality which could be disruptive to operations, NOAA directed
EMOSS engineers to disabled the SADPOS for the duration of the eclipse
event. Therefore, EMOSS POC Jeff Devine directed SADPOS disable at
22:30Z on 23 Nov and re-enable at 02:00Z on 24 Nov.

The final area of concern for N16 during the eclipse event was power
generation. Even though the spacecraft was to experience a very deep
solar eclipse, when that event was completed, the spacecraft would
re-emerge into sunlight for at least 45 minutes before going back into
its normal eclipse. Although NOAA and EMOSS engineers believed that
would be more than enough time to regenerate the batteries to full
capacity, as an added measure of precaution the battery charge rates
were increased to Medium Rate at 22:30Z. Once the eclipse was over, at
02:00 on 24 Nov, they were commanded back to their original
configuration of Low Rate Charge. Originally, the batteries were to be

N16 (cont): commanded to Medium Rate Charge on Friday and remain that
way throughout the weekend. However, concerns

about battery heating (especially 2A) convinced engineers that it might
be more prudent to leave medium rate charge for the minimum time
necessary to fullfill safety objectives. As illustrations 11a & b show,
N16 weathered this eclipse event with no problems occurring in the power
subsystem.

SEM reconfiguration planned. Per request of Bob Muckle (SEM user) ,
EMOSS engineer Will Kent will be reconfiguring the N16 SEM electron
channeltron from its current level 4 to level5. This operation will be
planned for mid week, next week.

NOAA-17: No new information on AMSU-A1 the past week. The instrument
remains powered off and inoperable. No new testing is currently planned.

N17 also experienced the solar eclipse on 23 Nov although to a less
significant degree than N16. As with N16, EMOSS recommended and NOAA
directed that the batteries be commanded to Medium Rate charge for the
duration of the event as a safety precaution. This commanding was
performed on 23 Nov at 21:10Z. Once the eclipse was over, the batteries
were returned to Low rate Charge at 01:55Z. Originally, the batteries
were to be commanded to Medium Rate Charge on Friday and remain that way
throughout the weekend. However, like N16, concerns about battery
heating (especially 2A) convinced engineers that it might be more
prudent to leave medium rate charge for the minimum time necessary to
fulfill safety objectives. As illustrations show 12a & b, N17 barely
even registered the effects of this eclipse since it occurred very close
to the time that N17 was entering its normal eclipse.

Regarding power, EMOSS engineers are starting to notice that the N17
shunt is running hotter than it ever has before (illustration 13a) and
that the bus voltage is starting to "spike upwards" occasionally
(illustration 13b). This may be indicative of an over stressed shunt.
With the AMSU-A1 recently powered off, it is probable that N17 is now
having to shunt all the power that was previously going into that
instrument. On the positive side of this issue, the solar angle on the
spacecraft is in a slow downtrend which will not bottom out until mid
Feb 04 and may reduce power generation somewhat. However, close
vigilance of the shunts and bus voltage will be maintained by EMOSS
engineers and the possibility of a solar array offset move to alleviate
some of the effects of this excess power generation may be necessary in
the future (although is not currently planned).

NOAA-N Discussions are being conducted between NOAA and other agencies
as to the best time to conduct the NOAA-N end to

end test. Current indications are that it will not occur until Feb 04.
The PACS software being developed to support NOAA-N is scheduled for
completion in time for an early December test. Other dates mentioned
include early and mid-January of 2004. EMOSS engineers are awaiting a
final disposition.

MISC:

CWS was installed in the EMOSS analysis area and comparison testing by
all EMOSS engineers was supposed to commence on 19 Nov. However,
technical difficulties with the software have delayed testing somewhat.
Comparison testing will entail EMOSS engineers performing all their
routine tasks on both a 3100 and CWS simultaneously and determining the
ability of CWS to enter parallel ops in the SOCC in early December. Kim
Kolb and Jon Woodward are leading this effort.

EMOSS engineer Andy Miller generated a new pseudo mnemonic for each POES
spacecraft that will be included in a new lim proc that will be employed
to prevent a lim proc for one spacecraft to be run on a pass for a
different spacecraft.

Kim Kolb in addition to his standard engineering duties performed the
network engineering function (currently vacant) in helped plan and
operate a data flow end to end test with Goldstone on 20 Nov and an
MHS/MIU test on 21 Nov.

EMOSS engineer Jon Woodward supported flight code management testing on
19 and 20 Nov.

The EMOSS solar eclipse model once again provided highly accurate
predictions of the time, duration and extent of the recent solar eclipse
upon the POES constellation. Developed primarily by Kim Kolb, this tool
enabled EMOSS engineers to recommend reconfigurations (or not) to help
increase the safety of the various spacecraft during the eclipse event.
For confirmation of these results refer to the predicted vs actual
graphs at the end of this report.

Carl Gliniak and Angelique Riley continue with their investigation of
the data quality at low elevation Barrow supports.

![](media/image1.wmf){width="8.25in" height="6.251388888888889in"}

**Illustration 1: N14 Power Analysis. Note Eclipse effects at the end of
day 327**

![](media/image2.wmf){width="8.25in" height="6.251388888888889in"}

**Illustration 2a: N14 SBUV Anomaly and recovery**

![](media/image3.wmf){width="8.375in" height="6.346527777777778in"}

**Illustration 2b: N14 SBUV thermal profiles during anomaly and
recovery.**

![](media/image4.wmf){width="8.25in" height="6.251388888888889in"}

**Illustration 3: N15 HIRS Filter Wheel Recovery Continues**

![](media/image5.wmf){width="8.125in"
height="6.156944444444444in"}**Illustration 4: N15 AMSU-B surge analysis
(near term and long term)**

NOTE: No imagery available for inclusion in this report because of SOCC
PIDES outage at the time of publication.

![](media/image6.wmf){width="8.25in" height="6.251388888888889in"}

**Illustration 5: N15 Power Analysis leading up to and including solar
eclipse on 23 Nov**

![](media/image7.wmf){width="8.125in" height="6.539583333333334in"}

**Illustration 6: N16 AVHRR Scan Motor Health**

**(has been more stable in the past)**

(No imagery available because of SOCC PIDES outage)

![](media/image8.wmf){width="8.125in"
height="6.156944444444444in"}**RECENT CLOSE VIEW LONG VIEW**

**Illustration 7: N16 AVHRR Synch Delta Values (Mean) and Stability
(Standard Deviation) Analysis**

Recent values are very encouraging

![](media/image9.wmf){width="8.125in" height="6.156944444444444in"}

**Illustration 8: N16 AVHRR Thermal Profile.**

Looks like the warming trend is over. Hopefully the coming cooling trend
will not increase the viscosity of the scan motor lubricant.

![](media/image10.wmf){width="8.125in" height="6.213888888888889in"}

**Illustration 9: N16 Gyro performance relative to Yaw Update.**

(note solar eclipse at end of the week)

![](media/image11.wmf){width="8.375in" height="6.245833333333334in"}

**Illustration 10: N16 Yaw Update relative to solar eclipse**

(update occurred right in the middle of the eclipse and it was still a
good update.)

![](media/image12.wmf){width="8.375in"
height="6.253472222222222in"}**Illustration 11a: N16 Power Analysis
leading up to and including the solar eclipse.**

![](media/image13.wmf){width="8.25in" height="6.159722222222222in"}

**Illustration 11b: N16 Power Analysis leading up to and including the
solar eclipse.**

![](media/image14.wmf){width="8.25in" height="6.159722222222222in"}

**Illustration 12a: N17 Power Analysis leading up to and including the
solar eclipse.**

![](media/image15.wmf){width="8.375in" height="6.253472222222222in"}

**Illustration 12b: N17 Power Analysis #2 leading up to and including
the solar eclipse.**

![](media/image16.wmf){width="8.125in" height="6.058333333333334in"}

# 

# 

# Illustration 13a: N17 Shunt temp trends 

# 

# ![](media/image17.wmf){width="8.25in" height="6.151388888888889in"}

# Illustration 14: N17 Shunt temp vs bus voltage history 

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING November 21, 2003

  ----------- --------- ---------- ---------- ---------- ---------- ----------
  DAY/DATE    NOAA-11   NOAA-12    NOAA-14    NOAA-15    NOAA-16    NOAA-17

  FRI. 11/14  -1511     +129 msec  +025 msec  +036 msec  +037 msec  +027 msec
              msec                                                  

  SAT. 11/15  -1740     +119 msec  +025 msec  +037 msec  +036 msec  +028 msec
              msec                                                  

  SUN. 11/16  -1870     +111 msec  +023 msec  +037 msec  +037 msec  +029 msec
              msec                                                  

  MON. 11/17  -1600     +103 msec  +025 msec  +036 msec  +040 msec  +028 msec
              msec                                                  

  TUE. 11/18  -1630     +103 msec  +025 msec  +036 msec  +041 msec  +030 msec
              msec                                                  

  WED. 11/19  -1760     +095 msec  +026 msec  +036 msec  +041 msec  +032 msec
              msec                                                  

  THU. 11/20  -1290     +088 msec  +027 msec  +035 msec  +041 msec  +034 msec
              msec                                                  
  ----------- --------- ---------- ---------- ---------- ---------- ----------

NOAA-11 As of 09/03/02 the Control Side TIP clock is corrected daily by
+70 msec to compensate for drift.

As of 11/03/03 Non control side clock is no longer supported

NOAA-12 ADDED 1000 mSecs to spacecraft command clock on 10/17/03.

N12 Plan daily ETCUP bias of +6.5 mSec on Date TBD

NOAA-14: As of 04/23/03 the TIP clock is corrected daily by ---7.3 msec
to compensate for drift.

SUBTRACTED 150 msec from spacecraft command on 10 June.

NOAA-15: As of 04/23/03 the TIP clock is corrected daily by ---8 msec to
compensate for drift.

ADDED 100 msec to spacecraft command clock on 10 June.

NOAA-16: As of 04/23/03 the TIP clock is corrected daily by --5.1 msec
to compensate for drift.

SUBTRACTED 100 msec from spacecraft command clock on 10 June.

NOAA-17: As of 10/21/03 the TIP clock is corrected daily by --1.7 msec
to compensate for drift.

![](media/image18.wmf){width="6.625in" height="4.5777777777777775in"}
SUBTRACTED 50 MS on 10/21

**Weekly N17 CPU Error Scrubs**

![](media/image19.wmf){width="7.625in" height="2.640277777777778in"}

![](media/image20.wmf){width="7.375in" height="5.833333333333333in"}

**NOAA-17 Scrubber Hits from 17 Nov 2003 through 24 Nov 2003:**

![](media/image21.wmf){width="8.125in" height="5.259722222222222in"}

**Red/Circle = CPU#1**

**Black/X = CPU#2**

***PACS DATA AVAILABILITY (%)***

November 14, 2003 through November 20, 2003

JDAY 318-324

  ----------- ------- ------ ------------- --------- ------------- --------- -------------
                             NOAA15        NOAA14    NOAA11        NOAA16    NOAA17

  Friday      11/14   318    100.0         100.0     **92.1(a)**   100.0     **94.2(b)**

                                                                             

  Saturday    11/15   319    100.0         100.0     100.0         100.0     100.0

                                                                             

  Sunday      11/16   320    **93.5(c)**   100.0     **85.6(d)**   100.0     100.0

                                                                             

  Monday      11/17   321    100.0         100.0     **70.1(e)**   100.0     100.0

                                                                             

  Tuesday     11/18   322    **87.1(f)**   100.0     **84.7(g)**   100.0     100.0

                                                                             

  Wednesday   11/19   323    100.0         100.0     100.0         100.0     100.0

                                                                             

  Thursday    11/20   324    100.0         100.0     100.0         100.0     **94.7(h)**

                                                                             

                                                                             
  ----------- ------- ------ ------------- --------- ------------- --------- -------------

EMOSS POC for this chart: Angelique Riley

**[Comments:]{.underline}**

(a) Rev 78077/W: S2B noisy; 98.0% recovered 2DL 1PE.

(b) Rev 07216/F: G3B noisy; 97.9% recovered.

(c) Rev 28643/W: G3B noisy; 97.8% recovered.

(d) Rev 78110/F: S3B noisy; 98.4% recovered 7DL 27PE.

(e) Rev 78121/W: S3B noisy; 99.4% recovered 3DL 10 PE.

(f) Rev 28661/F: G2B noisy 96.6% recovered 2DL.

(g) Rev 78139/F: S4A noisy 96.2% recovered 10DL.

(h) Rev 07309/F: G2B noisy 98.0% recovered.

**[DTR Inf. (\*):]{.underline}**

NOAA-11 DTR 1B -Inoperative.

> DTR 2A/B -Frequently noisy

DTR 4B -Frequently noisy

DTR 5A/B -Inoperative

NOAA-12 DTR 5A -Inoperative.

DTR 2B -Occasionally noisy and short

NOAA-14 DTR 4A/B -Inoperative.

DTR 3B -Unreliable playbacks, Removed from operations.

DTR 2A -Inoperative, DOY/200

NOAA-15 DTR 5A/B - Inoperative

NOAA-16 DTR 5A/B -Inoperative

DTR 3A -safe state change 1B

DTR 4B --Inoperative 1/12/03

NOAA-17 DTR 5A/B-Inoperative 2/16/03 Anomaly

**[Acronyms:]{.underline}**

DL -- Drop lock(s) PE - Parity Error(s) DQR - Data Quality Report

BE - Bit Error(s) DAR - Data Accountability Report MFR - Multi-Function
Receiver

![](media/image22.wmf){width="8.125in" height="4.738888888888889in"}

NOAA12:

No spacecraft data available for NOAA-12.

![](media/image23.wmf){width="7.875in" height="4.284027777777778in"}

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