**POLAR Spacecraft Status As of: Tues, 3 Feb 04 16:00 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   |        |         | C       |
|          |        |        | inope  |        |         | PUError |
|          |        |        | rative |        |         | TOAR434 |
+----------+--------+--------+--------+--------+---------+---------+
| **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 |        |        |         |         |
|          |        | 1      | SS     | Gyro   | Gyro3   |         |
|          | X &S   | 0/1/03 | check  | cha    | des     |         |
|          | gyros  |        | Di     | ns=AAB | elected |         |
|          | only   | RG     | sabled |        |         |         |
|          |        | mode=M | when   |        | Gyro3   |         |
|          |        | onitor | 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     | --5.5   | --3     |
|          | nables | nables | nables | mSec   | mS      | mSec    |
|          |        |        | daily  |        |         |         |
|          | daily  | daily  | bia    |        | Minus   | Minus   |
|          | bias   | bi     | s--7.0 |        | 100 mS  | 100 mS  |
|          | +      | as+6.5 | mS     |        | on on   | on      |
|          | 70mSec | mS     |        |        | 1       | 1       |
|          | (c     |        | Minus  |        | 2/23/03 | 2/23/03 |
|          | ontrol | Auto   | 50 mS  |        |         |         |
|          | side   | nomous | 12/23  |        |         |         |
|          | only)  | -500   |        |        |         |         |
|          |        | mSecs  |        |        |         |         |
|          |        | on 17  |        |        |         |         |
|          |        | Jan    |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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  |         |
|          |        |        |        | ## [Si | telem   |         |
|          |        |        |        | nce 4/ | d       |         |
|          |        |        |        | 24/03] | rifting |         |
|          |        |        |        | {.unde |         |         |
|          |        |        |        | rline} |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Ch     |         |         |
|          |        |        |        | annels |         |         |
|          |        |        |        | 224    |         |         |
|          |        |        |        | -227   |         |         |
|          |        |        |        | i      |         |         |
|          |        |        |        | nvalid |         |         |
|          |        |        |        | TOAR   |         |         |
|          |        |        |        | 432    |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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    | #1 ON  | OFF    | #1 ON  | INOP    | #2 ON   |
|          |        |        |        |        |         |         |
| (APT     |        | 137.50 | Since  | 137.50 | OFF     | 137.62  |
| data)    |        | MHZ    | 8      | MHZ    | since   | MHZ     |
|          |        |        | /14/02 |        | 1       |         |
|          |        |        |        |        | 1/15/00 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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  |         |
| #        |        |        |        | #####  |         |         |
| 4=2247.5 |        |        |        | 4- Pla |         |         |
| mhz      |        |        |        | yback  |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| #        | [Array | [Ar    | [Array | [Array | [Array  | [Array  |
| ## POWER | Off    | rayOff | Off    | Off    | Off     | Off.    |
|          | -30]   | -60]   | -55]   | -45]   | -4      | --4     |
| (Array   | {.unde | {.unde | {.unde | {.unde | 0]{.und | 0]{.und |
| offset,  | rline} | rline} | rline} | rline} | erline} | erline} |
| charge   |        |        |        |        |         |         |
| and      | Since  | since  | Since  | Since  | Since   | Since   |
| eclipse  | 6      | 7      | 8      | 1      | 7/16/02 | 1/29/04 |
| 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    |
|          | all    |        |        |        |         |         |
|          | year   | Sun    | Sun    | Sun    | Sun     | Sun     |
|          |        | Angle  | Angle  | Angle  | Angle   | Angle   |
|          | Sun    | at 24  | at 22  | 11     | 58      | at 62   |
|          | angle  | steady |        | down   |         |         |
|          | 72     | trend  | Dow    | trend  | UpTrend | Down    |
|          |        | .      | ntrend | to 6   | to 59   | trend   |
|          | Steady |        | to 20  | degs   | in      | to 60   |
|          | trend  | Sun    |        | late   | early   | early   |
|          |        | sensor | Batts  | Feb    | Feb 04  | Feb 04  |
|          | Ba     | s      | 1-3=   |        |         |         |
|          | tts1,2 | hading | LRC    | Batts  | Batts   | Batts   |
|          | ,3=LRC |        |        | 1-3=   | 1-3=    | 1-3=    |
|          |        | po     | Batts  | LRC    | LRC     | LRC     |
|          | VT1    | ssible | 1&3V/  |        |         |         |
|          | ,2=6/8 | until  | T=8/11 | V      | V/T=4/8 | V/T=    |
|          |        | 4/04   |        | /T=7/9 |         | 4/8     |
|          | VT3 =  |        | Batt2  |        |         |         |
|          | 8/11   | Batts  | V      |        |         | High    |
|          |        | 1      | T=9/11 |        |         | shunt   |
|          | Charge | &2=LRC | )      |        |         | temps   |
|          | state  |        |        |        |         |         |
|          | safe   | V/T=4  | Shunt  |        |         |         |
|          |        |        | De     |        |         |         |
|          | trip   |        | graded |        |         |         |
|          | di     |        |        |        |         |         |
|          | sabled |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | INOP   | N      | DE     | N      | I       | ###     |
| *AVHRR** |        | ominal | GRADED | ominal | mproved | Nominal |
|          | Failed |        |        |        | Scan    |         |
|          | power  |        | Scan   | Rare   | motor   | 3A-B    |
|          | s      |        | motor  | Scan   | current | switch  |
|          | upply. |        | e      | motor  | & synch | enabled |
|          | Off    |        | rratic | s      | delta   |         |
|          | since  |        | perfo  | urges. | i       |         |
|          | 1994   |        | rmance | Last   | mproved |         |
|          |        |        | STAT   |        | image   |         |
|          |        |        | US=RED | In     | b       |         |
|          |        |        |        | cident | arcodes |         |
|          |        |        |        | 8/9/03 | elim    |         |
|          |        |        |        |        | inated. |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | TCE24on |         |
|          |        |        |        |        | 1/16/04 |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | 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 |         |         |
|          |        |        |        | 12     |         |         |
|          |        |        |        | /25/03 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| ### HIRS | #####  | INOP   | ON     | Reco   | ON      | ON      |
|          | ## OFF |        |        | vering |         |         |
|          |        | Filter | Opera  |        | Nominal | 1 Pixel |
|          | ####   | Wheel  | tional | FW     |         | cross   |
|          | #### F | turned |        | m      |         | track   |
|          | ilter  | OFF    |        | ode=Hi |         | misal   |
|          | Wheel  | 10/    |        | Powr   |         | ignment |
|          | Failed | 17/02. |        |        |         | .       |
|          |        | Elect  |        | FW     |         |         |
|          |        | ronics |        | c      |         |         |
|          |        | On     |        | urrent |         |         |
|          |        |        |        | e      |         |         |
|          |        |        |        | rratic |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | FW     |         |         |
|          |        |        |        | H      |         |         |
|          |        |        |        | eaters |         |         |
|          |        |        |        | off    |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | FW     |         |         |
|          |        |        |        | Synch& |         |         |
|          |        |        |        | Period |         |         |
|          |        |        |        | M      |         |         |
|          |        |        |        | onitor |         |         |
|          |        |        |        | n      |         |         |
|          |        |        |        | ominal |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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=5 | -HVPS=2 |
|          |        | Pr     | Pr     | -CDEM- |         |         |
|          |        | ot-CH- | ot-CH- | HVPS=2 | P-CDEM  | P-CDEM  |
|          |        | HVPS=0 | HVPS=0 |        | -HVPS=4 | -HVPS=3 |
|          |        |        |        | P      |         |         |
|          |        |        | 1 of 4 | -CDEM- |         |         |
|          |        |        | Tele   | HVPS=0 |         |         |
|          |        |        | scopes |        |         |         |
|          |        |        | inope  |        |         |         |
|          |        |        | rative |        |         |         |
|          |        |        |        |        |         |         |
|          |        |        | Auto   |        |         |         |
|          |        |        | nomous |        |         |         |
|          |        |        | reset  |        |         |         |
|          |        |        | and    |        |         |         |
|          |        |        | com    |        |         |         |
|          |        |        | manded |        |         |         |
|          |        |        | re     |        |         |         |
|          |        |        | covery |        |         |         |
|          |        |        | 12     |        |         |         |
|          |        |        | /16/03 |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SBUV** | INOP   |        | Reco   |        | ON      | ON      |
|          |        |        | vering |        |         |         |
|          | G      |        |        |        | Status  | Nominal |
|          | rating |        | Flex   |        | Changed |         |
|          | motor  |        | memory |        | to      | Anode   |
|          | OFF    |        | 3      |        | YELLOW  | Mode    |
|          | since  |        | (giant |        |         |         |
|          | 5      |        | step)  |        | Ozone   |         |
|          | /29/03 |        | ops    |        | data    |         |
|          |        |        | sus    |        | degr    |         |
|          | Elect  |        | pended |        | adation |         |
|          | ronics |        | indefi |        | r       |         |
|          | and    |        | nitely |        | eported |         |
|          | Heater |        | on     |        | TOAR    |         |
|          | remain |        | 1      |        | 435     |         |
|          | ON     |        | 2/2/03 |        |         |         |
|          |        |        |        |        | Back to |         |
|          |        |        | R      |        | Primary |         |
|          |        |        | educed |        | D       |         |
|          |        |        | oper   |        | iffuser |         |
|          |        |        | ations |        | 1       |         |
|          |        |        | s      |        | 2/19/03 |         |
|          |        |        | tarted |        |         |         |
|          |        |        | 6/5/03 |        | Primary |         |
|          |        |        |        |        | d       |         |
|          |        |        |        |        | iffuser |         |
|          |        |        |        |        | =TOAR   |         |
|          |        |        |        |        | 426     |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | Backup  |         |
|          |        |        |        |        | D       |         |
|          |        |        |        |        | iffuser |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | =TOAR   |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | Both    |         |
|          |        |        |        |        | have    |         |
|          |        |        |        |        | Antenna |         |
|          |        |        |        |        | deploy  |         |
|          |        |        |        |        | p       |         |
|          |        |        |        |        | roblems |         |
|          |        |        |        |        |         |         |
|          |        |        |        |        | AMSU    |         |
|          |        |        |        |        | EMI     |         |
|          |        |        |        |        | causing |         |
|          |        |        |        |        | erratic |         |
|          |        |        |        |        | B       |         |
|          |        |        |        |        | ehavior |         |
|          |        |        |        |        | in PMT  |         |
|          |        |        |        |        | cathod, |         |
|          |        |        |        |        | range 3 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | N/A    | ON      | ON      |
| SADPOS** |        |        |        |        |         |         |
|          |        |        |        |        | ENABLED | ENABLED |
|          |        |        |        |        |         |         |
|          |        |        |        |        | MFactor |         |
|          |        |        |        |        | =50%    |         |
+----------+--------+--------+--------+--------+---------+---------+
| **T      | N      | N      | N      | TCE26  | Nominal | TCE3H   |
| HERMAL** | ominal | ominal | ominal | & 15H  |         | Batt 2A |
|          |        |        |        |        | TCE24   | heater  |
| Heaters, |        |        |        | Telem  | turned  | failed  |
| louvers  |        |        |        | i      | ON      | ON,     |
|          |        |        |        | nvalid | (AVHRR  | turned  |
| TCE's    |        |        |        | since  | H&L)    | off     |
|          |        |        |        | 12     | 1/16/04 | 8/26/03 |
|          |        |        |        | /23/03 |         | TOAR    |
|          |        |        |        |        | AVHRR   | 428     |
|          |        |        |        | TOAR   | temps   |         |
|          |        |        |        | 432    | imme    | AMSU-A1 |
|          |        |        |        |        | diately | s       |
|          |        |        |        | HIRS   | dropped | urvival |
|          |        |        |        | FW     | 4 degs  | heaters |
|          |        |        |        | Heat   | C       | on      |
|          |        |        |        | Off    |         | 1       |
|          |        |        |        |        |         | 0/29/03 |
|          |        |        |        | TCE2   |         |         |
|          |        |        |        | 4L&25L |         |         |
|          |        |        |        | (HIRS  |         |         |
|          |        |        |        | &      |         |         |
|          |        |        |        | AVHRR) |         |         |
|          |        |        |        | failed |         |         |
|          |        |        |        | 5      |         |         |
|          |        |        |        | /13/98 |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | RCE    |         |         |
|          |        |        |        | ther   |         |         |
|          |        |        |        | mostat |         |         |
|          |        |        |        | failed |         |         |
|          |        |        |        | 5      |         |         |
|          |        |        |        | /13/98 |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Cold   |         |         |
|          |        |        |        | season |         |         |
|          |        |        |        | ended, |         |         |
|          |        |        |        | trend  |         |         |
|          |        |        |        | re     |         |         |
|          |        |        |        | versed |         |         |
+----------+--------+--------+--------+--------+---------+---------+
|          | *      | *      | *      | *      | **N16** | **N17** |
|          | *N11** | *N12** | *N14** | *N15** |         |         |
+----------+--------+--------+--------+--------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-11 No change since previous report. No plans have yet been
submitted for decommissioning N12 and no schedule for this

operation is yet determined although discussions continue. Discussions
regarding requests for end of life EPS testing

currently being conducted although no decision on whether to perform
such testing has yet been made.

NOAA-12. No changes since previous report. Clock stable after 500 mSec
jump last week. The Spacecraft remains in YGC

attitude control mode with yaw updates disabled and no immediate plans
to switch back to Nominal mode with Yaw updates enabled until April.

Reports of yaw offsets in some IPD products being reported but cannot be
verified by spacecraft telemetry. EMOSS engineer Jim Sheperd has been
investigating this concern from IPD personnel that N12 has been
exhibiting a yaw error of magnitude +0.3 degrees since 21 Jan 04. In
analyzing trend data over the last six weeks where we have been able to
get accurate yaw updates from the spacecraft, Jim has noticed that the
trend of these updates is a positive shift of about 0.2 degrees compared
with the trend for the nominal attitude mode. However, Jim also noted
that there was no indication of a sudden shift of yaw pointing around
Jan. 21 as IPD has specified. In his analysis, the yaw error has been
there for much longer. Since the spacecraft has been in YGC mode (with
yaw updates ignored) since 12 Sept 2003 it is possible that the problem
originated at around that time rather than just 2 weeks ago. The
investigation continues.

NOAA-14: N14 AVHRR Scan motor current continues to slowly improve
although it still has far to go before returning to what

previously had resulted in nominal imagery (illustration 1). HIRS
remained stable during the past reporting period with no loss of filter
wheel synch. Finally, the N14 bus and shunt voltage were nominal
throughout the week.

NOAA-15: The N15 AVHRR and AMSU-B scan motors were nominal throughout
the past reporting period while the HIRS filter

motor current continues to show less than stable performance. As it has
in the past two months, the filter motor again spent much of its time in
the last week either experiencing or recovering from minor current and
temperature surge events. On the positive side, the period monitor value
appear and filter wheel synch remained nominal and there were no reports
of imagery degradation received by EMOSS engineers. (Illustration 2 and
3).

There is no change to the 3 analog telemetry items that failed several
weeks ago. TCE26H (Channel 224) TCE15H (Channel 226) and N2 Low Pressure
(Channel 227) values all remain "flatlined". Analysis of peripheral
values that would be influenced by these failures remain nominal
(illustration). Each of the "flatlined" items physically reside as
sequential channel connections on a single mux chip in the spacecraft.
Among the other channels on this mux that are not applicable to this
problem are 225 which is not used and 228 which is DTR5 Pressure. (DTR 5
is non-operational/failed recorder and so will always read zero.) Among
other used channels on this mux are channel 229 (Thruster 11 temp), 230
(SEM High Power Supply) and 231 (HIRS Patch Temp). Analysis by EMOSS
engineers show that these three channels remain completely nominal
(illustration 4 and 5)

TheN15 spacecraft is currently approaching a record low sun angle which
is causing many subsystem temperatures to flag low. Primary among these
subsystems is AMSU-B which has had numerous thermal low flags detected
in recent days (illustration 6,7,8). EMOSS engineers expect that these
temperatures will continue to decline for the next week to 10 days as
the sun angle bottoms out around the third week of February. The current
consensus among EMOSS engineers is that these temperatures do not
constitute a threat to spacecraft health but close vigilance of
subsystem performance will be maintained as a result of this situation.
Andy Miller and Will Kent are EMOSS POC's for this situation.

NOAA-16: The AVHRR continued to improve during the past week with the
scan motor current slowly declining and no images

displaying the bar code pattern (although all images continue to show
the wave pattern. (See illustration 9). The synch delta values are once
again stable and apparently can go from one daily rephase to another
without ever approaching "pegged status" which had not been the case
just one week earlier (illustration 10). In addition, all AVHRR
temperatures are stable (illustration 11). One item of interest in the
EMOSS investigation of this anomaly was that on 23 Jan, the same day
that the image bar codes disappeared, a large drop in N16's AVHRR Patch
Power occurred which then went back to a more stable value (illustration
12). Since that drop, the images have experienced no bar codes and,
while there may be no cause/effect relationship between these two
occurrences, in looking for coincidences and correlations into the AVHRR
anomaly, this is one that might bear some scrutiny. Will Kent is
investigating for EMOSS.

Another positive development on N16 is that the HIRS filter motor
current and temperature, which were registering "record high" readings
in the recent past, continue to very slowly trend downward in response
to the cool down in the AVHRR component temperatures (illustration 13).
EMOSS engineers expect that this trend will slowly continue for several
weeks as long as the TCE24 remains powered on which is what the current
plan calls for.

There was no change in the SBUV ozone data degradation situation in the
past week. However, since this data is the primary source of SBUV
investigations and the fact that both the primary and backup diffusers
are anomaolous, NOAA management has decided to downgrade the N16 SBUV to
YELLOW status.

N16 yaw control was nominal and during the past reporting period
(illustration 14).

NOAA-17: The N17 Solar Array was moved on Thursday, 29 Jan at 15:30Z to
a --40 degree offset (from --35). This move was in

response to the excess power generation that has occurred on N17 ever
since the AMSU-A1 failed in October of 2003. The result of turning off
the AMSU was record high shunt temperatures caused by excess power
dissipation requirements. Initial analysis of the results of this move
show that it had the desired effect of reducing the solar patch current
and reducing shunt temperature (illustration 15 & 16). Peripheral
effects of the move were minimal with only several ADACS and no payload
components showing any thermal reactions to the move (illustration 17)
Bus voltage also remained completely stable. . EMOSS power engineer Andy
Miller was POC for this move.

NOAA-N The end to end test has been rescheduled for 9 Feb, EMOSS
engineers are supporting preparations for this test. The

NOAA-N data base was delivered on 3 Feb. Azi Dianat was POC for this
delivery.'

MISC: Jon Woodward and Kim Kolb continue providing consultative support
to the SOCC CWS integration. EMOSS

engineers are attempting to integrate ABE into the daily engineering
routine.

Meetings supported by EMOSS engineers included the MOWG, TOAR Board, N11
Decommissioning Status Meeting, Rgyro TIM

![](media/image1.wmf){width="5.990277777777778in"
height="4.655555555555556in"}**Illustration 1: N14 AVHRR Health
Analysis.**

**(Improved a little last week but still a way to go.)**

![](media/image3.wmf){width="8.25in" height="6.251388888888889in"}

Illustration 2: N15 HIRS Health. (Erratic filter motor performance
continues but as yet no reported or apparent effect on imagery)

N15 HIRS operating in high power mode with filter wheel heater currently
OFF.

(Note: previous "mini" surges usually did not reach beyond 260-265 mAmps

![](media/image4.png){width="2.765277777777778in" height="5.75in"}

31 Jan 04 at 12:15Z 3 Feb 04 at 16:00Z

Peak Surge on 31 Jan no surge/latest

ILLUSTRATION 3: N15 HIRS Imagery Analysis

![](media/image6.wmf){width="8.125in" height="6.066666666666666in"}

FAILED CHANNELS NOMINAL CHANNELS

Illustration 4: N15 Common Mux Channel Comparison.

Some nominal, some failed, some not used

![](media/image7.wmf){width="8.0in" height="6.0625in"}

Illustration 5: N15 "Flatlined" Item peripheral components analysis.

No changes from last week, no responses from toggling TCE15 off then
back on. No concerns for these components...at this time

![](media/image8.wmf){width="7.875in" height="5.967361111111111in"}

Illustration 6: N15 AMSU-B Cooling Trend Deepens

(Numerous Lim Proc'd items for this subsystem, no health concerns at the
present time.)

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

**Illustration 7: N15 Cooling Trend relative to other Payloads**

(Representative (rep) samples of various payload component temperatures.
No health concerns at the current time.

![](media/image10.wmf){width="8.125in" height="6.156944444444444in"}

**Illustration 8: N15 Cooling trend, the long view**

(3+ years of trend data on selected payload components).

![](media/image11.png){width="1.75in" height="4.0in"}

# ![](media/image15.wmf){width="5.9944444444444445in" height="4.576388888888889in"}3 Feb 07:20Z 3 Feb 14:00Z 3 Feb 18:45Z [WAVES]{.underline} 

32Z Zoom

**Illustration 9: N16 AVHRR Scan Motor and Imagery Analysis**

All Images from today; 3 Feb 04

![](media/image16.wmf){width="8.375in" height="6.254166666666666in"}

**Illustration 10: N16 AVHRR Synch Delta Value Analysis 3 Feb (compared
to Synch Delta performance on 16 Jan)**

**,**

Taken on five successive passes (each graph represents N16 AVHRR synch
delta performance over a 12 minute period). Notice how even after 22.5
hours without a rephase, (lower right) the synch delta remains stable.
Each graph shows the relative stability of the synch delta value on 3
Feb which is greatly improved from even last week. Compare these 3 Feb
graphs with the graph of 16 Jan 04 (upper left) which was rephased and
then pegged all within the same 12 minute pass.

![](media/image17.wmf){width="8.125in" height="6.159027777777778in"}

**Illustration 11: N16 AVHRR Thermal Analysis.**

The picture of stability

![](media/image18.wmf){width="8.152777777777779in"
height="6.086111111111111in"}

**Illustration 12: N16 AVHRR Patch Power "Coincidence".**

On the same day that images stopped displaying barcode patterns, this
value had a significant drop (bottom graph). The top graph is just to
put this value in perspective with itself. However, in the never ending
search for correlation, this is one data point that appears relevant.
Whether it is or not has yet to be determined.

![](media/image19.wmf){width="8.0in" height="5.964583333333334in"}

**Illustration 13: N16 HIRS filter wheel operating profile during the
past reporting period.** (Retreating, as desired)

![](media/image20.wmf){width="8.25in" height="6.345833333333333in"}

**Illustration 14: N16 Yaw Control Analysis**

So far, so good

![](media/image21.wmf){width="8.25in" height="6.251388888888889in"}

**Illustration 15: N17 Solar Array Move Effects Analysis**

Objective accomplished

**Illustration** ![](media/image22.wmf){width="8.125in"
height="6.058333333333334in"}**16: N17 Solar Array Move Assessment; The
Long View**

#  

# 

![](media/image23.wmf){width="8.125in"
height="6.156944444444444in"}**Illustration 17: N17 Solar Array Move:
The peripheral effects**

Nothing of note and nothing with payloads

**POLAR SPACECRAFT TIP CLOCK ERROR**

## WEEK ENDING January 30, 2004

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

  FRI. 01/23  -1806     -537 msec  +014 msec  +024 msec  -030 msec  -051 msec
              msec                                                  

  SAT. 01/24  -1736     -536 msec  +014 msec  +023 msec  -029 msec  -052 msec
              msec                                                  

  SUN. 01/25  -1666     -539 msec  +015 msec  +022 msec  -031 msec  -051 msec
              msec                                                  

  MON. 01/26  -1896     -535 msec  +015 msec  +024 msec  -030 msec  -052 msec
              msec                                                  

  TUE. 01/27  -1725     -536 msec  +016 msec  +025 msec  -031 msec  -053 msec
              msec                                                  

  WED. 01/28  -1555     -537 msec  +017 msec  +025 msec  -027 msec  -055 msec
              msec                                                  

  THU. 01/29  -1885     -535 msec  \+ 014     +024 msec  -026 msec  -055 msec
              msec                 msec                             
  ----------- --------- ---------- ---------- ---------- ---------- ----------

EMOSS POC for this chart is JIM SHEPHERD

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.

Daily ETCUP bias of +6.5 mSec started on 12/10/03. Offset fell 500mSecs
on 17 Jan

NOAA-14: As of 1223/03 the TIP clock is corrected daily by ---7.0 msec
to compensate for drift.

Subtracted 50 msec from spacecraft command on 23 Dec 03.

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 03.

NOAA-16: As of 12/23/03 the TIP clock is corrected daily by --5.5 msec
to compensate for drift.

Subtracted 100 msec from spacecraft command clock on 23 Dec 03.

NOAA-17: As of 12/23/03 the TIP clock is corrected daily by --3 msec to
compensate for drift.

![](media/image24.wmf){width="7.25in" height="4.0777777777777775in"}
Subtracted 100 msec from spacecraft command clock on 23 Dec 03.

**Weekly N17 CPU Error Scrubs**

\* On 22 Dec between 18:24 and 19:01Z CPU errors were reported by
telemetry at a substantially higher number (numbered in the hundreds)
than appears above. For purposes of brevity only the first and last
errors during this possible anomalous situation are being reported. A
TOAR was submitted in response to this event. No effect on the
spacecraft was readily apparent and this large number will not be
included in future reporting on CPU errors..

![](media/image25.wmf){width="7.875in" height="2.65in"}

![](media/image26.wmf){width="6.75in" height="5.102777777777778in"}

**From 26 Jan 2004 through 2 Feb 04:**

![](media/image27.wmf){width="8.0in" height="4.975in"}

**Red/Circle = CPU#1**

**Black/X = CPU#2**

**(NOTE: These statistics DO NOT include the multitude of errors
reported on CPU-1 on 22 Dec**

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

January 23, 2004 through January 29, 2004

JDAY 023-029

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

  Friday      01/23   023    100.0     100.0     **83.5(a)**   100.0     100.0

                                                                         

  Saturday    01/24   024    100.0     100.0     **85.5(b)**   100.0     100.0

                                                                         

  Sunday      01/25   025    100.0     100.0     **93.0(c)**   100.0     100.0

                                                                         

  Monday      01/26   026    100.0     100.0     **87.6(d)**   100.0     100.0

                                                                         

  Tuesday     01/27   027    100.0     100.0     100.0         100.0     100.0

                                                                         

  Wednesday   01/28   028    100.0     100.0     100.0         100.0     100.0

                                                                         

  Thursday    01/29   029    100.0     100.0     100.0         100.0     100.0

                                                                         

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

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

(a) Rev 79067/W: S1A noisy; 32% recovered 10DL 9PE.

(b) Rev 79092/F: S1A noisy; 98.1% recovered 1DL.

(c) Rev 79104/W: S1A noisy; 94.7% recovered 9DL.

(d) Rev 79120/W: S1A noisy; 97.7% recovered.

**[EMOSS POC For This Chart: Angelique Riley]{.underline}**

**[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