**POLAR Spacecraft Status As of: Tues 05 Aug 03 12:00 EST**

*(Abbreviated edition: 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**   |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | DE     | N      | N      | OK     | NOMINAL | NOMINAL |
| *ADACS** | GRADED | OMINAL | OMINAL |        |         |         |
|          |        |        |        | Rg     | R       | R       |
|          | (Y, Z- | RG     | Rgm    | mode=M | gmode=D | gmode=D |
|          | Gyros  | mode=M | ode=Di | onitor | isabled | isabled |
|          | F      | onitor | sabled |        |         |         |
|          | ailed) |        |        | Rgyro  | Gyro    |         |
|          | R      |        | SS     | test   | c       |         |
|          | educed |        | check  | p      | hannels |         |
|          | Gyro   |        | Di     | lanned | swapped |         |
|          | S/W    |        | sabled | for    | to AAA  |         |
|          |        |        | when   | Fall   | and     |         |
|          |        |        | mo     | 2003   | Gyro#3  |         |
|          |        |        | de=YGC |        | des     |         |
|          |        |        |        | Gyro-3 | elected |         |
|          |        |        |        | Of     | on 29   |         |
|          |        |        |        | f/Anom | July    |         |
|          |        |        |        |        | 14:30Z  |         |
+----------+--------+--------+--------+--------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI    | PRI     | PRI     |
|          |        |        |        |        |         |         |
|          | BU     | BU     | BU     | ETCUP  | ETCUP   | ETCUP   |
|          | random | random | random | -8     | --5.1   | -1 msec |
|          | e      | e      | e      | mSec   | mSec    |         |
|          | nables | nables | nables |        |         |         |
|          |        |        | ETCUP  |        |         |         |
|          | ETCUP  |        | --7.3  |        |         |         |
|          | +70    |        | Msec   |        |         |         |
|          | mSecs  |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **CLOCK  | 2      | 2      | 2      | 2      | 2       | 2       |
| DIV**    |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **MIRP** | ON     | ON     | ON     | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          |        |        | Ex     | Ex     | E       | I       |
|          |        |        | ternal | ternal | xternal | nternal |
|          |        |        | Sync.  | Sync,  | Sync,   | Synch   |
|          |        |        |        | R      |         |         |
|          |        |        | R      | ephase | Rephase | Rephase |
|          |        |        | ephase | Daily. | Enabled | Enabled |
|          |        |        | Daily  |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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     |        | since  | Since  | Co     | OFF     |         |
| data)    |        | 7      | 8      | nflict | since   |         |
|          |        | /12/03 | /14/02 | with   | 1       |         |
|          |        |        |        | N12    | 1/15/00 |         |
|          |        | Co     | (con   | from   |         |         |
|          |        | nflict | flicts | 7/12   |         |         |
|          |        | with   | & poor | to     |         |         |
|          |        | N15    | AVHRR  | 8/12   |         |         |
|          |        |        | data)  |        |         |         |
|          |        | back   |        |        |         |         |
|          |        | on     |        |        |         |         |
|          |        | 8      |        |        |         |         |
|          |        | /12/03 |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BTX**  | 2      | 1      | 2      | 1      | 1       | ####    |
|          |        |        |        |        |         | ###  2  |
+----------+--------+--------+--------+--------+---------+---------+
| **STX**  | 3 --   | 1 --   | 3 --   | 1, 2,  | 1 --    | 3 --    |
|          | TIP    | HRPT;  | HRPT   | 3 -    | HRPT;   | HRPT    |
|          |        |        |        | deg    |         |         |
|          | 1,2 -  | 2,3 -  | 2, 1   | raded; | 2--     | TOAR424 |
|          | Pl     | Pl     | --     |        | Pl      | low     |
|          | ayback | ayback | Pl     | ###    | ayback; | power   |
|          |        |        | ayback | ### 2  |         |         |
|          |        |        |        | Omni-- | 4 --    | 1&2     |
|          |        |        |        | HRPT;  | P       | P       |
|          |        |        |        | 4- Pla | layback | layback |
|          |        |        |        | yback  |         |         |
|          |        |        |        |        | 3 low   | 4 --    |
|          |        |        |        |        | power   | TIP     |
|          |        |        |        |        | unused  |         |
+----------+--------+--------+--------+--------+---------+---------+
| #        | [Array | [Ar    | [Array | [Array | [Array  | [Array  |
| ## POWER | Off    | rayOff | Off    | Off    | Off     | Off.    |
|          | -30]   | -60]   | -45]   | -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      | 6      | 1      | 7/16/02 | 7/1/02  |
| states,  | /19/02 | /30/03 | /19/03 | /25/01 |         |         |
| sun      |        |        |        |        | Eclipse | Eclipse |
| angle)   | E      | E      | E      | E      | all     | all     |
|          | clipse | clipse | clipse | clipse | year    | year    |
|          | all    | Season | Season | Season |         |         |
|          | year   |        |        |        | Sun     | Sun     |
|          |        | Ends   | Ends   | Ended  | Angle   | Angle   |
|          | Sun    | 8/25   | 8/15   | 4 Aug  | 65      | at 68   |
|          | angle  |        |        |        |         |         |
|          | 78     | Sun    | Sun    | Sun    | Do      | Steady  |
|          |        | Angle  | Angle  | Angle  | wntrend | Trend   |
|          | Steady | at 32  | at 30  | at 28  | to 54   |         |
|          | Trend  | trend  | trend  | trend  |         | Batts   |
|          |        | down   | down   | down   | Batt2A  | 1-3=    |
|          | Batts  | to 16  | to 22  | to 14  | TOAR403 | LRC     |
|          | 1-3=   | on     |        | on     | Unre    |         |
|          | LRC    | 10/17  | Batts  | 10/8   | gulated | V/T=4/8 |
|          |        |        | 1-3=   |        | Temp    |         |
|          | VT1    | Batts  | LRC    | Batts  |         | Batt2A  |
|          | ,2=6/8 | 1      |        | 1-3=   | Batts   | TOAR    |
|          |        | &2=LRC | Batt   | LRC    | 1-3=    | 416     |
|          | VT3 =  |        | 1&3V/  |        | LRC     | Unre    |
|          | 8/11   | V/T=4  | T=8/11 | V      |         | gulated |
|          |        |        |        | /T=7/9 | V/T=4/8 | Temp    |
|          | Charge |        | Batt2  |        |         |         |
|          | state  |        | V      |        |         |         |
|          | safe   |        | T=9/11 |        |         |         |
|          |        |        | )      |        |         |         |
|          | trip   |        |        |        |         |         |
|          | di     |        | Shunt  |        |         |         |
|          | sabled |        | Degra  |        |         |         |
|          |        |        | dation |        |         |         |
|          |        |        | TOAR   |        |         |         |
|          |        |        | 425    |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | OFF    | ON     | ON     | ON     | ON      | ### ON  |
| *AVHRR** |        |        |        |        |         |         |
|          | Failed | N      | Scan   | Rare   | Nominal | Nominal |
|          | Power  | ominal | Motor  | Scan   | (3B)    | (3A&B)  |
|          | Supply |        | de     | motor  |         |         |
|          |        |        | graded | s      | 3A-B    | 3A-B    |
|          |        |        | 5/1/03 | urges. | switch  | switch  |
|          |        |        | (but   | Last   | once    | enabled |
|          |        |        | impr   |        | per     |         |
|          |        |        | oving) | In     | week    |         |
|          |        |        | STAT   | cident | over    |         |
|          |        |        | US=RED | 7/4/03 | north   |         |
|          |        |        |        |        | pole.   |         |
|          |        |        |        |        | Last    |         |
|          |        |        |        |        | switch  |         |
|          |        |        |        |        | 1Aug 03 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **A      |        |        |        | ON     | ON      | ON      |
| MSU-A1** |        |        |        |        |         |         |
|          |        |        |        | Ch14   | TOAR    | TOAR    |
|          |        |        |        | inope  | 415 on  | 413     |
|          |        |        |        | rative | primary | Chan-3  |
|          |        |        |        |        | PLLO    | popcorn |
|          |        |        |        | Ch11   | chans   | noise   |
|          |        |        |        | inope  | 9-14    |         |
|          |        |        |        | rative | bias    | TOAR    |
|          |        |        |        |        | shift.  | 414 on  |
|          |        |        |        |        |         | PLLO    |
|          |        |        |        |        | TOAR    | chans   |
|          |        |        |        |        | 417 on  | 9-14    |
|          |        |        |        |        | Backup  | bias    |
|          |        |        |        |        | PLLO    | shift.  |
|          |        |        |        |        |         |         |
|          |        |        |        |        | Status  | TOAR    |
|          |        |        |        |        | =Yellow | 421 on  |
|          |        |        |        |        |         | Ch      |
|          |        |        |        |        |         | annel-7 |
|          |        |        |        |        |         | e       |
|          |        |        |        |        |         | levated |
|          |        |        |        |        |         | NEDT's  |
|          |        |        |        |        |         | noise   |
+----------+--------+--------+--------+--------+---------+---------+
| **A      |        |        |        | ON     | ON      | ON      |
| MSU-A2** |        |        |        |        |         |         |
|          |        |        |        |        | Space   |         |
|          |        |        |        |        | Pos     |         |
|          |        |        |        |        | ition-2 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | ON     | ON      | ON      |
| AMSU-B** |        |        |        |        |         |         |
|          |        |        |        | Bias   | Space   |         |
|          |        |        |        | in All | Pos     |         |
|          |        |        |        | Cha    | ition-3 |         |
|          |        |        |        | nnels. |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Motor  |         |         |
|          |        |        |        | c      |         |         |
|          |        |        |        | urrent |         |         |
|          |        |        |        | surges |         |         |
|          |        |        |        | most   |         |         |
|          |        |        |        | recent |         |         |
|          |        |        |        | 7      |         |         |
|          |        |        |        | /12/03 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| ### HIRS | #####  | INOP   | ON     | ON     | ON      | ON      |
|          | ## OFF |        |        |        |         |         |
|          |        | Filter | Opera  | Opera  | Nominal | 1 Pixel |
|          | #####  | Wheel  | tional | tional |         | cross   |
|          | ### Fi | turned |        |        |         | track   |
|          | lter W | OFF    |        | FW in  |         | misal   |
|          | heel A | 10/    |        | Hi     |         | ignment |
|          | nomaly | 17/02. |        | power, |         | .       |
|          |        | Elect  |        |        |         |         |
|          |        | ronics |        | FW     |         |         |
|          |        | On     |        | H      |         |         |
|          |        |        |        | eaters |         |         |
|          |        |        |        | OFF    |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Filter |         |         |
|          |        |        |        | Motor  |         |         |
|          |        |        |        | c      |         |         |
|          |        |        |        | urrent |         |         |
|          |        |        |        | s      |         |         |
|          |        |        |        | urges. |         |         |
|          |        |        |        | Last   |         |         |
|          |        |        |        | in     |         |         |
|          |        |        |        | cident |         |         |
|          |        |        |        | 7/12   |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | New    |         |         |
|          |        |        |        | a      |         |         |
|          |        |        |        | nomaly |         |         |
|          |        |        |        | de     |         |         |
|          |        |        |        | tected |         |         |
|          |        |        |        | 7/29.  |         |         |
|          |        |        |        | Excess |         |         |
|          |        |        |        | noise  |         |         |
|          |        |        |        | in     |         |         |
|          |        |        |        | space  |         |         |
|          |        |        |        | view   |         |         |
|          |        |        |        | ch     |         |         |
|          |        |        |        | annels |         |         |
|          |        |        |        | 13-19  |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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 | R       |         |
|          |        |        |        | ittent | eceiver |         |
|          |        |        |        | fa     | in FG   |         |
|          |        |        |        | ilures | mode)   |         |
|          |        |        |        | for    |         |         |
|          |        |        |        | 243MHz | 243 MhZ |         |
|          |        |        |        | A&B    | INOPE   |         |
|          |        |        |        |        | RATIVE. |         |
+----------+--------+--------+--------+--------+---------+---------+
| **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 | P-CDEM  | P-CDEM  |
|          |        | HVPS=0 | HVPS=0 |        | -HVPS=4 | -HVPS=3 |
|          |        |        |        | Since  |         |         |
|          |        |        | 1 of 4 | 1      | since   | since   |
|          |        |        | Tele   | /14/03 | 4/15/03 | 2/18/03 |
|          |        |        | scopes |        |         |         |
|          |        |        | inope  | P      |         |         |
|          |        |        | rative | -CDEM- |         |         |
|          |        |        |        | HVPS=0 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SBUV** | INOP   |        | ON     |        | ON      | ON      |
|          |        |        |        |        |         |         |
|          | G      |        | Occa   |        | Backup  | Nominal |
|          | rating |        | sional |        | D       |         |
|          | motor  |        |        |        | iffuser | Anode   |
|          | OFF    |        | R      |        | in use  | Mode    |
|          | since  |        | educed |        | since   |         |
|          | 5      |        | G      |        | 6/      |         |
|          | /29/03 |        | rating |        | 16/03.) |         |
|          |        |        | Drive  |        |         |         |
|          | Elect  |        | Motion |        | Primary |         |
|          | ronics |        |        |        | =TOAR   |         |
|          | and    |        | R      |        | 426     |         |
|          | Heater |        | educed |        |         |         |
|          | remain |        | oper   |        | antenna |         |
|          | ON     |        | ations |        | deploy  |         |
|          |        |        | p      |        | a       |         |
|          |        |        | rofile |        | nomaly, |         |
|          |        |        | s      |        |         |         |
|          |        |        | tarted |        | AMSU    |         |
|          |        |        | 6/5/03 |        | EMI     |         |
|          |        |        |        |        | causing |         |
|          |        |        |        |        | erratic |         |
|          |        |        |        |        | B       |         |
|          |        |        |        |        | ehavior |         |
|          |        |        |        |        | from    |         |
|          |        |        |        |        | PMT     |         |
|          |        |        |        |        | cathod, |         |
|          |        |        |        |        | in      |         |
|          |        |        |        |        | range 3 |         |
|          |        |        |        |        | No      |         |
|          |        |        |        |        | cor     |         |
|          |        |        |        |        | rective |         |
|          |        |        |        |        | action  |         |
|          |        |        |        |        | p       |         |
|          |        |        |        |        | ossible |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | N/A    | ON      | ON      |
| SADPOS** |        |        |        |        |         |         |
|          |        |        |        |        | ENABLED | ENABLED |
|          |        |        |        |        |         |         |
|          |        |        |        |        | MFactor |         |
|          |        |        |        |        | =50%    |         |
+----------+--------+--------+--------+--------+---------+---------+
|          |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
|          | *      | *      | *      | *      | **N16** | **N17** |
|          | *N11** | *N12** | *N14** | *N15** |         |         |
+----------+--------+--------+--------+--------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-11 No changes since previous report.

NOAA-12. To further alleviate a shunt degradation problem isolated by
EMOSS POC Andy Miller, the N12 solar array offset was

again increased to --60 degrees (from --45) on 30 July. Preliminary
analysis has indicated that this had the desired affect of reducing
charge current (and shunt workload). This offset should remain in place
until late September when the sun angle on the spacecraft will be such
that the 60 degree offset solar array may begin to shade the sun sensor.
In that situation, either the array will have to be moved back to at
least --30 degrees or a "software/configuration workaround" will have to
be implemented that prevents this sun sensor shading situation from
causing an operational problem.

NOAA-14: N14 AVHRR scan motor current continued to improve during the
past week as it has for the past 9 weeks. Recently it

has begun to "gravitate" into a range what could be considered nominal.
In addition, and imagery data has also continued to improve.
(Illustrations 1 & 2). An upgrade in color status (currently RED) is not
under consideration at this time because of the inconsistency of this
component in maintaining nominal values over an extended period of time.

NOAA-15: EMOSS has received a report from user Robert Levin that since
JD210 July 29 the N15 HIRS channels 13-19 have

all shown increasing Space view noise and that currently 3 channels are
exceeding their spec limits. Users have been unable to determine the
cause of this violation and EMOSS analysis of N15 HIRS telemetry has
revealed very stable filter motor currents (no surges) and very stable
voltages, temps, product monitor values and imagery on the SOCC PIDES
system (illustration 3a, 3b, 4 and 5). A preliminary analysis conducted
outside of EMOSS has concluded that this anomaly indicates that the
noise increase in the shortwave channels does not appear to be related
to the typical NOAA-15/HIRS filter wheel problem. However, the following
possibilities can not be ruled out at this point: 1). The possibility of
solar contamination in the fore optics. 2). Shortwave detector problem.
3). Problems in the electronics. 4). Other causes. The possibility of
solar contamination can be ruled out if this pattern does not change
with solar geometry. Will Kent is investigating for EMOSS. An Incident
Report has been generated in SITARS and an Event Report is being
generated. A TOAR is under consideration and will be discussed further
at the TOAR Board to be held on 5 Aug.

Eclipse season (defined as a [minimum]{.underline} solar array patch
current in excess of 100 mAmp; enough to power the entire spacecraft
without battery input) ended on 4 Aug at approximately 17:00Z. Some
"shading" of the solar array may continue for another day or two but all
spacecraft power is now being provided exclusively by the solar array.
(Illustration 6)

NOAA-16: Preliminary analysis conducted by EMOSS ADACS engineer Jim
Sheperd has indicted that the gyro channel swap that

was implemented on 29 July was successful in eliminating the "excessive"
yaw update values that were periodically observed prior to the swap. The
final determination on the success or failure of this operation to
alleviate that problem is primarily time dependant.

The macro developed by EMOSS engineer Jon Woodward to switch the AVHRR
to Channel 3A over the northern

polar region was once again triggered nominally on 1 Aug. No requests
for additional triggerings of this macro have been received by EMOSS
since that 1 Aug operation and it is currently unknown by EMOSS
engineers whether any more will be required.

NOAA-17: RF testing continues at Svaalbard. These tests dump GAC data
over the Svaalbard site once or twice a day using a

variable combination of S-band transmitters and frequencies (often
STX-4). These tests are being conducted to validate the Svaalbard ground
station capabilities ability to support METOP and will continue out of
the schedule until August 23^rd^. STX-4 appears to be performing in a
nominal manner.

NOAA-N Level 2 Data base validation (Phase One) was completed by the
EMOSS team and delivered to NASA as scheduled (25

July) for their review despite some difficulties experienced with
performing the process on the Dev Rail. A schedule for TTS time during
the month of August when NASA and EMOSS engineers can review the data
base to a Level 3 (Phase One) is being generated and will be distributed
in the coming days. Phase Two data base validation will require CWS and
PACS upgrades to be complete before being implemented and whose
completion status remains undetermined at the present time.

Misc: EMOSS engineer Jim Walters supported the MHS pre flight model hand
over review in Sunnyvale CA between 28

and 30 July and has generated a trip report detailing the highlights of
that trip.

![](media/image1.wmf){width="8.25in" height="6.617361111111111in"}

### Illustration 1: N14 AVHRR Scan Motor Current 25 July through 3 Aug 03

![](media/image2.png){width="2.375in" height="7.6194444444444445in"}

**1 Aug 03 2 Aug 03 5 Aug 03**

### Illustration 2: N14 representative AVHRR Imagery 1, 2 and 5 Aug 2003

![](media/image5.wmf){width="8.49236111111111in"
height="6.435416666666667in"}

**[Illustration 3a: N15 HIRS Health #1, before, during and after channel
13-19 noise anomaly started (25 July through 3 Aug 03)]{.underline}**

![](media/image6.wmf){width="8.5in" height="6.440972222222222in"}

**[Illustration 3a: N15 HIRS Health #2, before, during and after channel
13-19 noise anomaly started (25 July through 3 Aug 03)]{.underline}**

![](media/image7.png){width="3.2333333333333334in"
height="4.308333333333334in"}**[N15 HIRS 29 Jul @ 01:30 PRE-noise N15
HIRS 29 Jul 23:00 POST-noise]{.underline}**

**[N15 HIRS image 2 Aug 03 N15 HIRS Image 5 Aug 03]{.underline}**

**[Illustration 4: N15 HIRS imagery analysis before during and after
noise reported]{.underline}**

![](media/image11.png){width="5.75in" height="3.2993055555555557in"}

![](media/image13.png){width="6.5in" height="2.6069444444444443in"}

**[Illustration 5: N15 HIRS Channel 14, 16 and 17 out of spec
graphics]{.underline}**

![](media/image14.wmf){width="8.5in" height="6.440972222222222in"}

**[Illustration 6: N15 Representative EPS telemetry depicting the end of
eclipse season.]{.underline}**

![](media/image15.wmf){width="8.5in" height="6.800694444444445in"}

**[Illustration 7: N16 Yaw update values before, during and after gyro
channel swap]{.underline}**

![](media/image16.wmf){width="8.5in" height="6.440972222222222in"}

**[Illustration 7: N16 Yaw update value Statisics before, during and
after gyro channel swap]{.underline}**

POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING July 25, 2003

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

  FRI. 07/18  -1149     -113 msec  -044 msec  +049 msec  -021 msec  -008 msec
              msec                                                  

  SAT. 07/19  -1149     -120 msec  -044 msec  +049 msec  -022 msec  -007 msec
              msec                                                  

  SUN. 07/20  -1149     -125 msec  -043 msec  +048 msec  -022 msec  -006 msec
              msec                                                  

  MON. 07/21  -1149     -131 msec  -045 msec  +047 msec  -022 msec  -004 msec
              msec                                                  

  TUE. 07/22  -1149     -141 msec  -045 msec  +050 msec  -022 msec  -003 msec
              msec                                                  

  WED. 07/23  -1149     -145 msec  -040 msec  +049 msec  -022 msec  -003 msec
              msec                                                  

  THU. 07/24  -1149     -151 msec  -039 msec  +050 msec  -022 msec  -001 msec
              msec                                                  
  ----------- --------- ---------- ---------- ---------- ---------- ----------

EMOSS POC for this chart is JIM SHEPHERD

NOAA-12: As of 09/03/02 the TIP clock is corrected daily by +70 msec to
compensate for drift.

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

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

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

NOAA-17: As of 04/23/03 the TIP clock is corrected daily by -1 msec to
compensate for drift.

N12: ADDED 1250 mSecs to spacecraft command clock on 6 June

N14: SUBTRACTED 150 msec from spacecraft command on 10 June.

N15: ADDED 100 msec to spacecraft command clock on 10 June.

N16: SUBTRACTED 100 msec from spacecraft command clock on 10 June.

![](media/image17.wmf){width="6.5in" height="3.7881944444444446in"}N17:
SUBTRACTED 100 msec from spacecraft command clock on 10 June.

![](media/image18.wmf){width="8.0in" height="4.0256944444444445in"}

**Two weeks of N17 CPU Error Scrubs**

![](media/image19.wmf){width="5.999305555555556in" height="4.6125in"}

### ![](media/image20.wmf){width="8.25in" height="4.965277777777778in"}Red/Circle = CPU#1 Black/X = CPU#2

**NOAA-17 Scrubber Hits from 21 Jul 2003 through 4 Aug 2003:**

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

July 25, 2003 through July 31, 2003

JDAY 206-212

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

  Friday      07/25   206    100.0         100.0     100.0         100.0     100.0

                                                                             

  Saturday    07/26   207    100.0         100.0     **85.7(a)**   100.0     100.0

                                                                             

  Sunday      07/27   208    100.0         100.0     **84.8(b)**   100.0     100.0

                                                                             

  Monday      07/28   209    **99.9(c)**   100.0     100.0         100.0     100.0

                                                                             

  Tuesday     07/29   210    **99.9(d)**   100.0     100.0         100.0     100.0

                                                                             

  Wednesday   07/30   211    **99.9(e)**   100.0     100.0         100.0     100.0

                                                                             

  Thursday    07/31   212    **99.9(f)**   100.0     100.0         100.0     100.0

                                                                             

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

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

(a) Rev 76511/F: S4A noisy; 98.1% recovered 12DL 59 PE.

(b) Rev 76519/F: S4A noisy; 98.0% recovered 5DL 11PE.

(c) Rev 27059/F: G1A noisy; 99.4% recovered 3DL 4PE.

(d) Rev 27066/F: G2B noisy; 98.3% recovered.

(e) Rev 27080/F: G3B noisy; 98.5% recovered 4DL 2PE.

(f) Rev 27106/W: G1A noisy; 99.1% 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