**POLAR Spacecraft Status As of: Weds, 7 Sept, 16:00 EST**

*(changes from last week in bold border)*

+----------+--------+--------+--------+---------+---------+---------+
| **Subs   | **NOAA | **NOAA | **NOAA | **NOA   | ##### N | ##### N |
| ystem/** | -12D** | -14J** | -15K** | A-16L** | OAA-17M | OAA-18N |
|          |        |        |        |         |         |         |
| **Com    | AM     | AM:    | AM:    | PM:     | AM:     | PM      |
| ponent** | 16     | 20     | 18     | 1       | 2       | 1       |
|          | :51=AN | :39=AN | :06=AN | 4:41=AN | 2:25=AN | 4:00=AN |
|          |        |        |        |         |         |         |
|          | STIP   | STIP   | GAC    | GAC&LAC | GAC&LAC | GAC &   |
|          | data   | data   | data   | data    | data    | LAC     |
|          | only   | only   | only   |         |         | data    |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | Oper    |
|          |        |        |        |         |         | ational |
|          |        |        |        |         |         | 30Aug05 |
+----------+--------+--------+--------+---------+---------+---------+
| **LA     | 05     | 12     | 05     | 0       | 6/24/02 | ##      |
| UNCHED** | /14/91 | /30/94 | /13/98 | 9/21/00 |         | ##### 5 |
|          |        |        |        |         |         | /20/05  |
+----------+--------+--------+--------+---------+---------+---------+
| **CNTL   | OBP2   | OBP2   | OBP2   | OBP2    | OBP2    | OBP2    |
| OBP**    |        |        |        |         |         |         |
|          |        | OBP1   |        |         |         |         |
|          |        | inope  |        |         |         |         |
|          |        | rative |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS**  | B-BUS  | B-BUS  | B-BUS  | B-BUS   | B-BUS   | B-BUS   |
|          |        |        |        |         |         |         |
|          | XSU-1  | XSU2   | XSU-1  | XSU-1   | XSU-1   | XSU-1   |
|          |        | (XSU1  |        |         |         |         |
|          |        | inop)  |        | XSU1    |         |         |
|          |        |        |        | TOAR    |         |         |
|          |        |        |        | 444     |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO      | NO      | NO      |
| VETO**   |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | [N     | [N     | [N     | #####   | #####   | [       |
| *ADACS** | ominal | ominal | ominal | # [Nomi | # [Nomi | Nominal |
|          | Mode]  | Mode]  | Mode]  | nal Mod | nal Mod | Mod     |
| X=Yaw    | {.unde | {.unde | {.unde | e]{.und | e]{.und | e]{.und |
|          | rline} | rline} | rline} | erline} | erline} | erline} |
| Y=Roll   |        |        |        |         |         |         |
|          | RG     | Rgm    | Rg     | Rgmode= | Rgmode= | Gyro-A  |
| Z=Pitch  | mode=M | ode=Di | mode=M | Monitor | Monitor | MIMU-2  |
|          | onitor | sabled | onitor |         |         |         |
|          |        |        |        | Gyro-3  | Gyro-3  | Z-wheel |
|          | Gyro   | Gyro   | Gyro-3 | Off     | Off     | -Pitch  |
|          | cha    | cha    | Off    | 6/10/04 | 6/10/04 |         |
|          | ns=XYZ | ns=XYZ | 6      |         |         | TOAR    |
|          |        |        | /26/00 | Gyro    | Gyro    | 447     |
|          |        | SS     | Gyro   | ch      | ch      |         |
|          |        | check  | cha    | ans=AAA | ans=AAB |         |
|          |        | Di     | ns=AAB |         |         |         |
|          |        | sabled |        |         | Gyro-2  |         |
|          |        | when   | N2 Low |         | invest  |         |
|          |        | mo     | PSI    |         | igation |         |
|          |        | de=YGC | i      |         |         |         |
|          |        |        | nvalid |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI     | PRI     | PRI     |
|          |        |        |        |         |         |         |
|          | BU     | BU     | daily  | Daily   | Daily   | No      |
|          | random | random | bias   | Bias    | Bias    | daily   |
|          | e      | e      | -8 mS  | --5.5   | --3 mS  | bias    |
|          | nables | nables |        | mS      |         |         |
|          |        | daily  | +100   |         |         |         |
|          | daily  | bia    | mS     | -100 mS |         |         |
|          | bi     | s--7.0 | 3      | 31Aug04 |         |         |
|          | as+6.5 | mS     | 1Aug04 |         |         |         |
|          | mS     |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **CLOCK  | 2      | 2      | 2      | 2       | 2       | 2       |
| DIV**    |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **MIRP** | Ex     | Ex     | Ex     | E       | E       | E       |
|          | ternal | ternal | ternal | xternal | xternal | xternal |
|          | Synch  | Synch  | Synch  | Sync    | Sync    | Synch   |
|          |        |        | R      |         |         |         |
|          | R      | R      | ephase | Rephase | Rephase | Rephase |
|          | ephase | ephase | 0730   | each    | Enabled | Enabled |
|          | E      | 0730   | daily  | orbit   |         |         |
|          | nabled | Daily  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **TIP    | 1      | 1      | 2      | 2       | 1       | 1       |
| SIDE**   |        |        |        |         |         |         |
|          |        |        | (since | since   | Analog  |         |
|          |        |        | 4/     | 4/18/05 | telem   |         |
|          |        |        | 23/03) |         | d       |         |
|          |        |        |        |         | rifting |         |
|          |        |        | 3      |         |         |         |
|          |        |        | Ch     |         |         |         |
|          |        |        | annels |         |         |         |
|          |        |        | inop   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **Rec    | DTRs   | DTRs   | DTRs   | DTRs 1, | DTR     | SSRs    |
| orders** | 3A, 4, | 1, 2B, | 1, 2,  | 2, 3,   | 1,3,4 / | 1,      |
|          | 5B     | 5      | 3, 4   | 4A      | SSR 2   | 2,3,4,5 |
| **(DTR,  |        | Safe   | Saf    |         |         |         |
| SSR)**   | Saf    | state- | estate | Sa      | Safest  | Current |
|          | estate | 1B     | 1B EOT | festate | ate=DTR | spikes  |
| S        | 5B     |        |        | 3A      | 1B      |         |
| afestate |        |        |        |         |         | TOAR    |
| recorder |        |        |        | 4B STIP |         | 450     |
| changes  |        |        |        | only    |         |         |
| planned  |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | #1 ON  | I       | #2 ON   | #2 ON   |
|          |        | (no    |        | NOP/Off |         |         |
| (APT     | 137.50 | minal) | 137.50 |         | 137.62  | 1       |
| data)    | MHZ    |        | MHZ    | OFF     | MHZ     | 37.9125 |
|          |        | Since  |        | since   |         | MHZ     |
|          |        | 8/2/05 | Since  | 1       | C       |         |
|          |        |        | 30 Aug | 1/15/00 | onflict | Change  |
|          |        | Co     |        |         | with    | under   |
|          |        | nflict | End    |         | N14     | consdi  |
|          |        | with   | N12    |         |         | eration |
|          |        | N17    | Co     |         |         |         |
|          |        |        | nflict |         |         |         |
|          |        | No     |        |         |         |         |
|          |        | turnon |        |         |         |         |
|          |        | date   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BTX**  | #1     | #2     | #1     | #2      | ###     | #1      |
|          |        |        |        |         | #### #2 |         |
|          | 136.77 | 137.77 | 137.35 | 137.77  |         | 137.35  |
|          | MHZ    | MHZ    | MHZ    | MHZ     | 137.77  | MHZ     |
|          |        |        |        |         | MHZ     |         |
|          |        |        |        | Since   |         | Since   |
|          |        |        |        | 8/30/05 |         | 8/30/05 |
+----------+--------+--------+--------+---------+---------+---------+
| **STX**  | 1 --   | 3 --   | 2-Omni | 2 --    | 3 --    | 1 -     |
|          | HRPT;  | HRPT   | HRPT   | HRPT    | HRPT    | HRPT    |
| #        |        |        |        |         |         |         |
| 1=1698.0 | 2,3 -  | 2, 1   | Power  | 1--     | TOAR424 | 3 -     |
| mhz      | Pl     | --     | drop   | P       | low     | P       |
|          | ayback | Pl     |        | layback | power   | layback |
| #        |        | ayback | TOAR   |         |         |         |
| 2=1702.5 |        |        | 446    | Swapped | 2 & 4   | Swapped |
| mhz      |        |        |        | 8/30    | P       | 8/30    |
|          |        |        | 4-Pl   |         | layback |         |
| #        |        |        | ayback | 4 --    |         | 2-P     |
| 3=1707.0 |        |        |        | P       | 1-      | layback |
| mhz      |        |        | 1,     | layback | Standby |         |
|          |        |        | 2,3-De |         |         | 4-Test  |
| #        |        |        | graded | 3 low   | STX-1   | &       |
| 4=2247.5 |        |        |        | power   | Power   | Standby |
| mhz      |        |        |        | unused  | drop    |         |
|          |        |        |        |         | TOAR    |         |
|          |        |        |        |         | 443.    |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [Ar    | [Array | [Array | [Array  | [Array  | [Array  |
| ## POWER | rayOff | Off    | Off    | Off     | Off.    | Off.    |
|          | +60]   | -55]   | -45]   | -4      | --4     | -4      |
| (Array   | {.unde | {.unde | {.unde | 0]{.und | 0]{.und | 0]{.und |
| offset   | rline} | rline} | rline} | erline} | erline} | erline} |
| and CANT |        |        |        |         |         |         |
| angle,   | since  | Since  | Since  | Since   | Since   | [S]{.   |
| charge & | 6      | 8      | 1      | 7/16/02 | 1/29/04 | underli |
| V/T      | /23/04 | /21/03 | /25/01 |         |         | ne}ince |
| rates,   |        |        |        | Eclipse | Eclipse | 6/6/05  |
| eclipse  | Full   | E      | Full   | all     | all     |         |
| states   | Sun    | clipse | Sun    | year    | year    | Array   |
| and sun  |        | all    |        |         |         | 360     |
| angle)   | E      | year   | Sun    | Sun     | Sun     | slew    |
|          | clipse |        | Angle  | Angle   | Angle   | test    |
|          | season | Sun    | 18     | 51      | at 68   | planned |
|          | ended  | angle  | dow    |         |         | for     |
|          | 20Aug  | 48     | ntrend | Do      | Steady  |         |
|          |        |        | to 2   | wntrend | trend   | 20 & 21 |
|          | Sun    | Steady | degs   | to 41   |         | Sept    |
|          | Angle  | trend  | on 10  | on 30   | Batts   |         |
|          | 25     |        | Oct 05 | Oct 05  | 1-3=    | Eclipse |
|          | dow    | Batts  |        |         | LRC     | all     |
|          | ntrend | 1-3=   | Batts  | Batts   |         | year    |
|          | to 12  | LRC    | 1-3=   | 1-3=    | V/T=    |         |
|          | m      |        | LRC    | LRC     | 4/8     | Batts   |
|          | id-Oct | Batts  |        |         |         | 1-3=LRC |
|          | 05     | 1&3V/  | V      | V/T=4/8 | SA      |         |
|          |        | T=7/11 | /T=7/9 |         | CANT=37 | Batts   |
|          | Batts  |        |        | SA      | degs    | 1-3     |
|          | 1      | Batt2  | SA     | CANT=22 |         | V/T=4/8 |
|          | &2=LRC | V      | C      | degs    |         |         |
|          |        | T=8/11 | ANT=37 |         |         | SADE -1 |
|          | Batt   |        | degs   |         |         | 7/29/05 |
|          | !&2    | SS     |        |         |         |         |
|          | V/T=4  | t      |        |         |         | SA      |
|          |        | rigger |        |         |         | CANT=22 |
|          | Shunt  | =18.98 |        |         |         |         |
|          | de     |        |        |         |         | PSSS    |
|          | graded | Shunt  |        |         |         | enabled |
|          |        | De     |        |         |         | 30May   |
|          | SA     | graded |        |         |         |         |
|          | C      |        |        |         |         |         |
|          | ANT=37 | SA     |        |         |         |         |
|          | degs   | C      |        |         |         |         |
|          |        | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | N      | N      | Im      | ###     | Nominal |
| *AVHRR** | ominal | ominal | ominal | proving | Nominal |         |
|          |        |        |        |         |         | 3A-B    |
|          |        | Ch     | Rare   | TCE24   | 3A-B    | switch  |
|          |        | annels | major  | OFF     | switch  | D       |
|          |        | 2 & 4  | scan   | 4/14/04 | enabled | isabled |
|          |        | to APT | motor  |         |         | 8/05/05 |
|          |        | 8/2/05 | s      | Imagery |         |         |
|          |        |        | urges. | s       |         | Channel |
|          |        |        | Last   | poradic |         | 3B only |
|          |        |        |        | bar     |         |         |
|          |        |        | In     | codes   |         |         |
|          |        |        | cident | since 6 |         |         |
|          |        |        | 11     | Aug     |         |         |
|          |        |        | /18/04 |         |         |         |
|          |        |        |        | Channel |         |         |
|          |        |        |        | 3B      |         |         |
|          |        |        |        | only.   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | Opera  | Oper    | O       | Nominal |
| MSU-A1** |        |        | tional | ational | FF/INOP |         |
|          |        |        |        |         |         | Full    |
|          |        |        | Ch14   | Primary | Since   | Scan    |
|          |        |        | inope  | PLLO    | 1       | mode    |
|          |        |        | rative | chans   | 0/30/03 |         |
|          |        |        |        | 9-14    |         |         |
|          |        |        | Ch11   | bias    | S       |         |
|          |        |        | inope  | shift.  | urvival |         |
|          |        |        | rative |         | heat    |         |
|          |        |        |        | Backup  | on.     |         |
|          |        |        |        | PLLO    |         |         |
|          |        |        |        | inop.   |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Channel |         |         |
|          |        |        |        | 9-14    |         |         |
|          |        |        |        | noise   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | N      | Nominal | Nominal | Nominal |
| MSU-A2** |        |        | ominal |         |         |         |
|          |        |        |        | Space   |         | Full    |
|          |        |        |        | Pos     |         | scan    |
|          |        |        |        | ition-2 |         | mode    |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | Opera  | Oper    | Nominal | ***R    |
| AMSU-B** |        |        | tional | ational |         | eplaced |
|          |        |        |        |         |         | by      |
|          |        |        | Bias   | Space   |         | MHS***  |
|          |        |        | in All | Pos     |         |         |
|          |        |        | Chans. | ition-3 |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Motor  | IPD     |         |         |
|          |        |        | surges | reports |         |         |
|          |        |        | most   | channel |         |         |
|          |        |        | recent | 8       |         |         |
|          |        |        | 11     | degr    |         |         |
|          |        |        | /14/04 | adation |         |         |
|          |        |        |        |         |         |         |
|          |        |        | de     |         |         |         |
|          |        |        | graded |         |         |         |
|          |        |        | data   |         |         |         |
|          |        |        | on     |         |         |         |
|          |        |        | Chan-3 |         |         |         |
|          |        |        | since  |         |         |         |
|          |        |        | 4/30   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ### HIRS | OF     | N      | N      | Oper    | NOMINAL | ######  |
|          | F/Inop | OMINAL | OMINAL | ational |         | ## Oper |
|          |        |        |        |         | 1 Pixel | ational |
|          | Turned | Opera  | Yellow | High    | cross   |         |
|          | off    | tional | status | levels  | track   | Status  |
|          | 6      |        |        | of      | misal   | dow     |
|          | /23/05 | Occa   | Since  | imagery | ignment | ngraded |
|          |        | sional | 16 May | radi    | .       | to      |
|          | For    | loss   | 05     | ometric |         | Yellow  |
|          | power  | of     |        | noise   |         | 15 Aug  |
|          | b      | Fwheel | FW     |         |         | 05      |
|          | alance | synch  | Abrupt | TOAR    |         |         |
|          |        |        | return | 441     |         | ####    |
|          | Filter |        | to     | open    |         | #### TO |
|          | Wheel  |        | n      |         |         | AR 448  |
|          | turned |        | ominal | Occ     |         |         |
|          | OFF    |        |        | asional |         | ####### |
|          | 10/    |        | TOAR   | major   |         | # Noise |
|          | 17/02. |        | 445    | FM      |         |  in lon |
|          |        |        | CLOSED | surges, |         | g wave  |
|          |        |        | 7      | most    |         |         |
|          |        |        | /12/05 | recent  |         | ##      |
|          |        |        |        |         |         | ######  |
|          |        |        | FW     | 12/9/04 |         | channel |
|          |        |        | m      |         |         | s 1-12. |
|          |        |        | ode=Hi |         |         |         |
|          |        |        | Powr   |         |         | Some    |
|          |        |        |        |         |         | impr    |
|          |        |        | FW     |         |         | ovement |
|          |        |        | Heater |         |         | re      |
|          |        |        | OFF    |         |         | ported. |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | Nominal |
|  MHS/MIU |        |        |        |         |         |         |
|          |        |        |        |         |         | Final   |
|          |        |        |        |         |         | config  |
|          |        |        |        |         |         | 6/4/05  |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | OF     | Opera  |        |         |         |         |
|          | F/Inop | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Turned | Scan   |        |         |         |         |
|          | off    | motor  |        |         |         |         |
|          | for    | and    |        |         |         |         |
|          | power  | a      |        |         |         |         |
|          | b      | ntenna |        |         |         |         |
|          | alance | pr     |        |         |         |         |
|          |        | oblems |        |         |         |         |
|          | 6      |        |        |         |         |         |
|          | /23/05 |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SSU**  |        | N      |        |         |         |         |
|          |        | ominal |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DCS**  | N      | N      | N      | Nominal | Nominal | Nominal |
|          | ominal | ominal | ominal |         |         |         |
|          |        |        |        |         |         | DRU's   |
|          |        |        |        |         |         | 1-7 On  |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | DRU-8   |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        |         |         | 449     |
|          |        |        |        |         |         | turned  |
|          |        |        |        |         |         | off     |
|          |        |        |        |         |         | 6/13    |
+----------+--------+--------+--------+---------+---------+---------+
| **SARR** |        | N      | Opera  | Oper    | Nominal | Nominal |
|          |        | ominal | tional | ational |         |         |
|          |        |        |        |         | A-side  | A-Side  |
|          |        |        | A      | Mode    |         |         |
|          |        |        | -Side, | =AA     | All AGC | All AGC |
|          |        |        | AGC    |         | Mode    | Mode    |
|          |        |        | Mode   | A-side, |         |         |
|          |        |        |        | AGC     |         | Since   |
|          |        |        | Interm | Mode    |         | 15 Aug  |
|          |        |        | ittent |         |         | 05      |
|          |        |        | fa     | (B-side |         |         |
|          |        |        | ilures | in FG   |         |         |
|          |        |        | for    | mode)   |         |         |
|          |        |        | 243MHz |         |         |         |
|          |        |        | A&B    | 243 MHz |         |         |
|          |        |        |        | = INOP. |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SARP** |        | OFF    | N      | Nominal | Nominal | Nominal |
|          |        |        | ominal |         |         |         |
|          |        | Power  |        | RCVR    |         | A-side  |
|          |        | F      | RCVR   | B/W = 2 |         | 23 May  |
|          |        | ailure | B/W =  |         |         |         |
|          |        |        | 2      |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SEM**  | ON/N   | Opera  | N      | Nominal | Nominal | Nominal |
|          | ominal | tional | ominal |         |         |         |
|          |        |        |        | E-CDEM  | E-CDEM  | Turned  |
|          | Turned | El     | E      | -HVPS=5 | -HVPS=2 | on      |
|          | on     | ec-CH- | -CDEM- |         |         |         |
|          | 8      | HVPS=0 | HVPS=2 | P-CDEM  | P-CDEM  | 6 June  |
|          | /30/04 |        |        | -HVPS=4 | -HVPS=3 | at      |
|          |        | Pr     | P      |         |         | 14:05z  |
|          | El     | ot-CH- | -CDEM- |         |         |         |
|          | ec-CH- | HVPS=0 | HVPS=0 |         |         |         |
|          | HVPS=4 |        |        |         |         |         |
|          |        | 1 of 4 |        |         |         |         |
|          | Pr     | T      |        |         |         |         |
|          | ot-CH- | scopes |        |         |         |         |
|          | HVPS=0 | inop   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SBUV** |        | De     |        | Oper    | Nominal | Nominal |
|          |        | graded |        | ational |         |         |
|          |        |        |        |         | Anode   | Anode   |
|          |        | Grate  |        | D       | Mode    | mode    |
|          |        | motor  |        | egraded |         |         |
|          |        | sticks |        | Ozone   | Plan    | since 6 |
|          |        |        |        | data    | sweep   | July    |
|          |        | Flex   |        |         | mode    | 13:30z  |
|          |        | memory |        | Backup  |         |         |
|          |        | 3      |        | D       | S       |         |
|          |        | (giant |        | iffuser | tandard |         |
|          |        | step)  |        | inop    | Ops     |         |
|          |        | ops    |        |         | Pr      |         |
|          |        | sus    |        | Primary | ocedure |         |
|          |        | pended |        | D       | changes |         |
|          |        | 1      |        | iffuser |         |         |
|          |        | 2/2/03 |        | dep     | fort    |         |
|          |        |        |        | loyment | hcoming |         |
|          |        | R      |        | problem |         |         |
|          |        | educed |        | TOAR    |         |         |
|          |        | oper   |        | 426     |         |         |
|          |        | ations |        |         |         |         |
|          |        |        |        | AMSU    |         |         |
|          |        | No     |        | EMI     |         |         |
|          |        | data   |        | causing |         |         |
|          |        | re     |        | erratic |         |         |
|          |        | ported |        | B       |         |         |
|          |        | by     |        | ehavior |         |         |
|          |        |        |        | in PMT  |         |         |
|          |        | pr     |        | cathod, |         |         |
|          |        | oducts |        | range 3 |         |         |
|          |        | di     |        |         |         |         |
|          |        | vision |        |         |         |         |
|          |        | 7      |        |         |         |         |
|          |        | /25/05 |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | "tran  |        |         |         |         |
|          |        | sient" |        |         |         |         |
|          |        | hit    |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | N/A    | ON      | ON      | ON      |
| SADPOS** |        |        |        |         |         |         |
|          |        |        |        | Enabled | ENABLED | Enabled |
|          |        |        |        | MFa     |         |         |
|          |        |        |        | ctor50% | Timer = | Timer   |
|          |        |        |        |         | 12mins  | =12     |
|          |        |        |        | Timer = |         | mins    |
|          |        |        |        | 12 mins |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **T      | N      | N      | TCE26  | Nominal | TCE3H   | All     |
| HERMAL** | ominal | ominal | & 15H  |         | Batt 2A | TCE's   |
|          |        |        |        | TCE24   | heater  | active  |
| Heaters, | TCE's  |        | Telem  | OFF     | failed  |         |
| louvers  | back   |        | i      | 4/14    | ON,     |         |
|          | to     |        | nvalid | (AVHRR  | turned  |         |
| TCE's    | n      |        |        | H&L)    | off     |         |
|          | ominal |        | TOAR   |         | 8/26/03 |         |
|          | c      |        | 432    | HIRS    | TOAR    |         |
|          | onfigu |        |        | Filter  | 428     |         |
|          | ration |        | HIRS   | heater  |         |         |
|          | fol    |        | FW     | turned  | CLOSED  |         |
|          | lowing |        | Heat   | OFF     | 9/14/04 |         |
|          | 7      |        | tuned  | 1/18/05 | no      |         |
|          | /25/04 |        | ON 17  |         | cor     |         |
|          | U      |        | Apr    |         | rective |         |
|          | Vtrip. |        | and    |         | action  |         |
|          |        |        | OFF on |         | po      |         |
|          |        |        | 18 Apr |         | ssible. |         |
|          |        |        |        |         |         |         |
|          |        |        | TCE2   |         | AMSU-A1 |         |
|          |        |        | 4L&25L |         | s       |         |
|          |        |        | (HIRS  |         | urvival |         |
|          |        |        | &      |         | heaters |         |
|          |        |        | AVHRR) |         | on      |         |
|          |        |        | failed |         | 1       |         |
|          |        |        | 5      |         | 0/29/03 |         |
|          |        |        | /13/98 |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | RCE    |         |         |         |
|          |        |        | ther   |         |         |         |
|          |        |        | mostat |         |         |         |
|          |        |        | failed |         |         |         |
|          |        |        | 5      |         |         |         |
|          |        |        | /13/98 |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | T      |         |         |         |
|          |        |        | hermal |         |         |         |
|          |        |        | dow    |         |         |         |
|          |        |        | ntrend |         |         |         |
|          |        |        | occ    |         |         |         |
|          |        |        | urring |         |         |         |
|          |        |        | on     |         |         |         |
|          |        |        | spac   |         |         |         |
|          |        |        | ecraft |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N18 |
|          | *N12** | *N14** | *N15** |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12 No change from last week. N12 supports have increased to average
one per day which improves the analytical

situation somewhat. EMOSS Power subsystem engineer Carl Gliniak is not
recommending any reconfigurations to the power balance equation at this
time, therefore no failed payloads will be turned on for use as
resisters in the foreseeable future, subject to short notice change
based on situational changes.

NOAA-14: At 1 Sept at 18:16z the NOAA-14 SBUV (a significantly less than
nominal payload) suddenly dropped out of its

normal operating mode (discrete mode). The instrument should always have
one of its four operational modes selected (the modes are discrete,
sweep, position and wavelength calibration), but after discrete mode was
autonomously switched off, there was no operational mode selected and
the grating drive stopped scanning and remained at grating position
-673. The on-duty AET detected the problem on 2 Sept at 00:27 (even
though there was no flag indicating the problem had occurred) and
notified engineering. After investigating the situation, EMOSS engineers
determined that even though the grating position remained fixed in
place, it was merely "parked" at that location and not stuck as has been
the case on several occasions with this payload. The primary reason for
this deduction was that the various SBUV temperatures (both analog and
DIG-A) showed no marked increase contrary to what occurs when the
grating drive is stuck. Therefore, EMOSS recommended that the payload
should simply be commanded back to discrete mode, a recommendation that
was approved by both NOAA and NASA personnel. This command, (SBGM1) was
sent to the SBUV on a pass at 14:33z on 2 Sept and the instrument
immediately resumed normal operations. The SBUV was monitored during
N14's next pass at 17:50z and was observed to be still operating in
discrete mode, as expected, with grating positions updating nominally.
It has remained nominal since that time. At the time of the event, just
about every SBUV [Dig-A]{.underline} telemetry point jumped to a
"pegged" value, for a single update before, in most cases returning to
its previous, nominal values. Because of these surges, it is believed
that a single event upset or some kind of transient electrical event
occurred within the spacecraft electronics that caused the mode to "drop
out". SBUV analog values, SEM science telemetry and solar activity were
all investigated, but show nothing out of the ordinary that might
explain this anomaly. An event report was generated and submitted by Jim
Walters who led the EMOSS effort to recover this SBUV supported by Will
Chadwick, and Sally House. Procedures are being put in place by EMOSS
engineers to improve the controllers ability to detect this problem
(developing a pseudo telemetry value for SBUV mode) as well as resolve
it (developing an SET COP) should it reoccur. (See Illustrations 1 and
2)

N14 power balance remains nominal as does the AVHRR health although
there are some small instabilities starting to be exhibited by the scan
motor current. Notwithstanding those minor instabilities, the N14 AVHRR
imagery (only HRPT currently available) remains nominal as does its
component temperatures and synch delta (illustration 3). VTX-2 (APT)
remains off until TBD because of an RF conflict with N17.

NOAA-15: The N15 spacecraft remains in a thermal downtrend which should
continue as the sun angle on the spacecraft works its way down to
approximately 2 degrees in mid-October (which is not as low as the zero
degrees angle it reached at this time last year). The N15 AMSU's were
nominal during the past week (illustration 4) while the AVHRR scan motor
current actually improved as it got cooler and the HIRS remained the
same, completely nominal (illustration 5). All other N15 subsystems were
performing nominally, from an engineering perspective, at the time of
this report.

NOAA-16: On 1 Sept at 17:30z, engineering was notified by users that N16
AVHRR imagery was \"continuously fully bar

coded\". EMOSS conducted an investigation into this issue and saw no
problems with the AVHRR hardware. However, further investigation
determined that starting at the beginning of the day on 30 Aug (the same
time N18 was declared operational) all MIRP Rephase Enable commands for
N16 had been omitted from the stored command load. These omitted
commands were not the cause of the bar coded imagery. As long as the
AVHRR scan motor current remained below 280 mAMps, bar codes are
unlikely to happen. If the current goes above that threshold (which it
has done numerous times in the past 2 months), bar coded imagery is a
typical result. In bar code cases, the rephase enable command, which is
always executed out of stored commands over the South Pole (N16 only)
usually clears the imagery until the next threshold breach when the
process occurs all over again. (Technical Note: actual MIRP rephasing is
triggered by synch delta values which, until recently, were usually
"pegged" within 30 minutes of a rephase occurring.) On 31 Aug between
01:14 and 02:20Z (the exact time cannot be determined because of an N16
data gap that occurred at this very time) the scan motor current must
have risen past this threshold before going back to its previous range
where it has since remained. This quick rise was enough to cause bar
code imagery. Normally, within a half hour or so the spacecraft would
have gone over the South Pole, rephase would have been enabled by stored
commands and the imagery would have been cleared. However, since no
rephase enable commands were in the N16 stored command table the bar
coded imagery persisted. Upon isolating the cause of the problem,
engineering directed the AET to invoke a realtime COP to manually
command an N16 MIRP rephase enable. This commanding was done at 19:30z
on 1 Sept and immediately cleared up the imagery. In the meantime, the
Scheduling Group was notified of this omission and are investigating its
cause. On 2 Sept the Scheduling Group regenerated the stored command
table with the required rephase enable commands and there has not been a
reoccurrence of this situation (or bar coded imagery) since that time
(although imagery wave patterns still persist). Jeff Devine and Will
Chadwick were POC's for the investigation and resolution into this
event. Otherwise, the N16 AVHRR scan motor current appears to be
trending very slowly downward (a positive development) while synch delta
is also showing signs of

N16 (cont)

improving as evidenced by the increasing amount of time it is taking
before it becomes "pegged". (See illustrations 6 through 10). The
remainder of N16's subsystems (including HIRS; illustration 11 and all
three AMSU's illustration 12) were nominal and stable during the past
week, from an engineering perspective as were all other subsystems.

NOAA-17: There were no changes from last week. The remaining N17 AMSU's,
the AVHRR and HIRS were all nominal and

stable during the past week (illustration 13 and 14). In addition, the
gyros on N17, which had recently shown some tendencies toward
instability remained stable during the past week (illustration 15).
Regardless, both the gyros on N17 are operating at, or near all time
highs and increased vigilance over them will be maintained by EMOSS into
the foreseeable future. Jim Sheperd is EMOSS POC for this subsystem.

NOAA-18: N18 is officially operational as of 30Aug at 00:30. There were
no changes to N18 configurations or health during the

past week. The N18 payload suite performed in a nominal and stable
manner during the past week (illustrations 16-18) as did the rest of the
subsystems on N18 (illustrations 19-21). In addition, EMOSS engineers
have received reports that some (not all) of the less than nominal HIRS
channels which resulted in a TOAR been generated have been improving
recently.

The investigation into the pitch oscillation TOAR continues. To support
this investigation, a test is currently being discussed among NOAA and
NASA engineers that will result in the N18 solar array being slewed
completely around (360 degrees) while in the dark/eclipse portion of its
orbit. If implemented, this slew will be performed twice, once in each
direction over two separate days. EMOSS engineer Jon Woodward is
supporting the planning stage of this operation by identifying and
preparing spacecraft macros and CPU telemetry changes that will be
necessary to support the operations. The test is tentatively planned for
20 Sept and will also use TDRSS and McMurdo to support in addition to
the CDA's. To prepare for this implementation, NASA has requested that
McMurdo have a readiness test ensure they can support this array slew
operation. EMOSS engineer Will Chadwick is leading the effort to support
this McMurdo readiness test. This test was originally going to have the
NOAA-18 STX4 transmitter turned on and configured for AIP during Wallops
Rev. 1555 (7 Sept at 1807Z) while McMurdo tried to lock on the downlink.
It has since slipped until Monday 12 Sept. This configuration will last
for several revs until NASA requests the transmitter be deconfigured.

Discussions regarding the possible swap of N18's VTX (APT) assignment
are also underway among the engineering and scheduling divisions.
Apparently, the VTX currently in operation (#2 at 137.9125 MHZ) on N18
is often interfered with by cellular devises while orbiting over the
European continent. To alleviate this condition a swap to VTX#1 (137.1
MHZ) is under consideration. No date has yet been determined for this
reconfiguration, if it should occur.

Misc: Engineers are currently discussing the efficacy of swapping out a
number of the safe state recorders throughout the

POES constellation. The reasons behind this possibility is that the safe
state recorders remain idle for very long periods

of time and there is some belief that "exercising them" and "resting"
other playback recorders might prolong all of these components. No date
is planned as yet for this operation. Will Chadwick and Jon Woodward are
EMOSS POC's.

![](media/image1.png){width="8.375in" height="6.11875in"}

**Illustration 1: NOAA-14 SBUV Autonomous Mode Switch Analysis**

(Dozens DIG-A values spiked at exactly the same time then returned to
nominal, except MODE stayed at an error value and instrument stopped
scanning.)

![](media/image2.png){width="8.375in" height="6.45625in"}

Illustration 2: N14 SBUV Recovery Analysis

(One command and Mode went back to where it belonged while scanning
resumed.)

![](media/image3.png){width="8.25in" height="6.3597222222222225in"}

Illustration 3: N14 AVHRR Health Analysis

(Nominal and generally stable but not as stable as it has been for the
past several weeks as evidenced by the stability analysis graph in lower
left.)

![](media/image4.png){width="8.375in" height="6.11875in"}

Illustration 4: N15 AMSU Health Analysis

(Nominal and stable with a pronounced thermal downtrend that should
continue for another several weeks.)

![](media/image5.png){width="8.25in" height="6.3597222222222225in"}

Illustration 5: N15 HIRS and AVHRR Health Analysis

(Note the continued improvement in scan motor current \[lower right\] as
the payload continues to cool down \[upper right\]. Synch delta remains
nominal as does AVHRR imagery. HIRS remains rock solid.

![](media/image6.png){width="3.875in" height="7.136805555555555in"}

Illustration 6: N16 AVHRR Synch Delta Analysis

Originally the lack of a rephase frame loss on the right image (\*)
would have been considered a favorable development. See next page synch
delta plot.

![](media/image7.png){width="8.25in" height="6.3597222222222225in"}

**ILLUSTRATION 7: N16 AVHRR Health Analysis**

(Seem to be improving, no bar codes since 2 Sept. On the synch delta
graph \[lower left\] the red X designates the time frame where the GAC
image without the rephase frame loss, on the previous page, was
obtained. Since, at that time the synch delta was basically "pegged"
there should have been a Rephase frame loss on that GAC image, but there
was not. This was the primary clue that allowed EMOSS engineers to
determine that MIRP rephases were no longer in the stored command table.

![](media/image8.png){width="8.0in" height="5.944444444444445in"}

**ILLUSTRATION 8: Rephase Imagery Analysis**

The first image was taken AFTER Rephase Enable commands were taken out
of stored command table. No bar codes indicates scan motor current was
below threshold. An hour later, bar codes appeared and remained there
until 1.5 days later when the MIRP was manually rephased over Wallops.
This cleared the bar codes which haven't returned since.

![](media/image9.png){width="7.708333333333333in"
height="5.797916666666667in"}

Illustration 9: N16 AVHRR Health Analysis

(The cause of the bar codes that started on 31 Aug after 02:00 may never
be known since the data is missing during the time of the last good
image and the start of bar coded images.

![](media/image10.png){width="8.0in" height="6.373611111111111in"}

Illustration 10: N16 AVHRR Current Imagery Analysis

(No bar codes today, wave patterns persist.)

![](media/image11.png){width="8.125in" height="6.263194444444444in"}

Illustration 11: N16 HIRS Health Analysis

(About the same as last week.)

![](media/image12.png){width="8.25in" height="5.986111111111111in"}

Illustration 12: N16 AMSU Health Analysis

(Nominal and stable, like last week.)

![](media/image13.png){width="8.125in" height="6.263194444444444in"}

Illustration 13: N17 AMSU Health Analysis

(About the same as last week, nominal and stable.)

![](media/image14.png){width="8.25in" height="6.3597222222222225in"}

Illustration 14: N17 HIRS and AVHRR Analysis

(About the same as last week, nominal and stable.)

![](media/image15.png){width="8.0in" height="6.017361111111111in"}

Illustration 15: N17 ADACS Analysis

(About the same as last week, nominal and stable.)

![](media/image16.png){width="8.125in" height="6.263194444444444in"}

Illustration 16: N18 AMSU Health Analysis

(About the same as last week, nominal and stable.)

![](media/image17.png){width="8.25in" height="6.3597222222222225in"}

Illustration 17: N18 HIRS and AVHRR Health Analysis

(About the same as last week, nominal and stable.)

![](media/image18.png){width="8.125in" height="6.272222222222222in"}

Illustration 18: N18 MHS Health Analysis

(About the same as last week, nominal and stable.)

![](media/image19.png){width="8.125in" height="6.272222222222222in"}

Illustration 19: N18 Power Health Analysis

(About the same as last week, nominal and stable.)

![](media/image20.png){width="8.125in" height="6.272222222222222in"}

Illustration 20: N18 DHS/Comm Health Analysis

(DDR's still spiking, STX-1 operating nominally as the new HRPT
transmitter.)

![](media/image21.png){width="8.375in" height="6.422916666666667in"}

Illustration 21: N18 ADACS Analysis

(About the same as last week. Pitch investigation continues)

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING September 2, 2005

  ---------- ---------- ---------- ---------- ---------- ---------- ----------
  DAY/DATE   NOAA-12    NOAA-14    NOAA-15    NOAA-16    NOAA-17    NOAA-18

  FRI. 08/26 N/A        +237 msec  -264 msec  +166 msec  +101 msec  0 msec

  SAT. 08/27 N/A        +237 msec  -266 msec  +166 msec  +103 msec  +002 msec

  SUN. 08/28 N/A        +238 msec  -265 msec  +166 msec  +103 msec  +003 msec

  MON. 08/29 N/A        +233 msec  -266 msec  +165 msec  +104 msec  +004 msec

  TUE. 08/30 -308 msec  +233 msec  -269 msec  +167 msec  +105 msec  +005 msec

  WED. 08/31 -310 msec  +234 msec  -267 msec  +170 msec  +105 msec  +008 msec

  THU. 09/01 -314 msec  +235 msec  -269 msec  +171 msec  +104 msec  +009 msec
  ---------- ---------- ---------- ---------- ---------- ---------- ----------

EMOSS POC for this chart is JIM SHEPHERD

NOAA-14: As of 12/23/03 the TIP clock is corrected daily by --7.0 msec
to compensate for drift.

NOAA-15: As of 04/22/03 the TIP clock is corrected daily by --8.0 msec
to compensate for drift.

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

NOAA-17: As of 12/23/03 the TIP clock is corrected daily by --3.0 msec
to compensate for drift.

NOAA-12: As of 12/10/03 the TIP clock is corrected daily by +6.5 msec to
compensate for drift.

\* A clock jump of -500 milliseconds on 04/17/05 due to fractional
second daily ETCUP. A clock

> jump of +500 milliseconds on 07/01/05 due to fractional second daily
> ETCUP. Alternating +/-
>
> 500 millisecond clock jumps will ccur at 76-day intervals as long as
> fractional second daily
>
> ETCUP is utilized to manage clock drift. The next +500 millisecond
> jump is expected on 09/15/05.

[POES Engineering Contact List]{.underline}

[Government]{.underline}

Renee Smith-Dearing NOAA POES Constellation Lead 301-817-4117

Dong Han: NOAA, POES Payloads 301-817-4127

Mickey Fitzmaurice: NOAA, POES Bus, IJPS 301-817-4016

Nicolaie Todirita (Todi): NOAA Ground Systems 301-817-4229

[EMOSS-2 Contractor]{.underline}

Jeff Devine: EMOSS POES Lead 301-817-4020

Jim Walters: EMOSS, POES Payload Engineer 301-817-4033

Carl Gliniak, EMOSS POES Power and Thermal 301-817-4207

Jim Sheperd, EMOSS POES Attitude Control 301-817-4030

Jon Woodward EMOSS, POES Flight Software C&CS 301-817-4019

Sally House EMOSS POES Payloads 301-817-4026

William Chadwick EMOSS, POES Comm and DHS 301-817-4015