**POLAR Spacecraft Status As of: Tues, 27 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    |
+----------+--------+--------+--------+---------+---------+---------+
| **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      | Array   |
|          |        | check  | cha    | ans=AAA | ans=AAB | slew    |
|          |        | Di     | ns=AAB |         |         | test    |
|          |        | sabled |        |         | Gyro-2  | 21-23   |
|          |        | when   | N2 Low |         | invest  | Sept    |
|          |        | 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  |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Plan   |        |         |         |         |
|          |        | to     |        |         |         |         |
|          |        | change |        |         |         |         |
|          |        | to     |        |         |         |         |
|          |        | once   |        |         |         |         |
|          |        | per    |        |         |         |         |
|          |        | orbit  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **TIP    | 1      | 1      | 2      | 2       | 1       | 1       |
| SIDE**   |        |        | (4     |         |         |         |
|          |        |        | /3/03) | since   | Analog  |         |
|          |        |        |        | 4/18/05 | telem   |         |
|          |        |        | 3      |         | d       |         |
|          |        |        | Ch     |         | rifting |         |
|          |        |        | 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  |
|          | 5B     |        |        | 3A      | 2B      |         |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        | 4B STIP | As of   | 450     |
|          |        |        |        | only    | 21 Sept |         |
|          |        |        |        |         |         | *       |
|          |        |        |        |         |         | **[Plan |
|          |        |        |        |         |         | SS      |
|          |        |        |        |         |         | switch  |
|          |        |        |        |         |         | to 5 b  |
|          |        |        |        |         |         | date    |
|          |        |        |        |         |         | TBD]{   |
|          |        |        |        |         |         | .underl |
|          |        |        |        |         |         | ine}*** |
+----------+--------+--------+--------+---------+---------+---------+
| **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 |        | 1       | C       |         |
|          |        |        |        | 1/15/00 | onflict | Swap to |
|          |        |        |        |         | with    | #1      |
|          |        |        |        |         | N14     | po      |
|          |        |        |        |         |         | stponed |
|          |        |        |        |         |         | until   |
|          |        |        |        |         |         | TBD     |
+----------+--------+--------+--------+---------+---------+---------+
| **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     |         |
+----------+--------+--------+--------+---------+---------+---------+
| **STX**  | 1 --   | 3 --   | 2-Omni | 2 --    | 3 --    | 1 -     |
|          | HRPT;  | HRPT   | HRPT   | HRPT    | HRPT    | HRPT    |
| 1 = rcp  |        |        |        |         |         |         |
| 1698.0   | 2,3 -  | 2, 1   | Power  | 1--     | TOAR424 | 3 -     |
| mhz      | Pl     | --     | drop   | P       | low     | P       |
|          | ayback | Pl     |        | layback | power   | layback |
| 2 = lcp  |        | ayback | TOAR   |         |         |         |
| 1702.5   |        |        | 446    | Swapped | 2 & 4   | Swapped |
| mhz      |        |        |        | 8/30    | P       | 8/30    |
|          |        |        | 4-Pl   |         | layback |         |
| 2        |        |        | ayback | 4 --    |         | 2-P     |
| omni=rcp |        |        |        | P       | 1-      | layback |
|          |        |        | 1,     | layback | Standby |         |
| 3= rcp   |        |        | 2,3-De |         |         | 4-Test  |
| 1707.0   |        |        | graded | 3 low   | STX-1   | &       |
| mhz      |        |        |        | power   | Power   | Standby |
|          |        |        |        | unused  | drop    |         |
| 4= rcp   |        |        |        |         | TOAR    |         |
| 2247.5   |        |        |        |         | 443.    |         |
| mhz      |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [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   | ***    | Full   | all     | all     |         |
| states   | Sun    | [Consi | Sun    | year    | year    | Array   |
| and sun  |        | dering |        |         |         | 360     |
| angle)   | Sun    | mo     | Sun    | Sun     | Sun     | slew    |
|          | Angle  | ve]{.u | Angle  | Angle   | Angle   | test    |
| *        | 19     | nderli | 8      | 49      | at 68   | occured |
| **[Solar | dow    | ne}*** | dow    |         |         | 21 & 22 |
| eclipse  | ntrend |        | ntrend | Do      | Steady  | Sept    |
| interm   | to 12  | E      | to 2   | wntrend | trend   |         |
| ittently | m      | clipse | degs   | to 41   |         | Eclipse |
| for 5    | id-Oct | all    | on 10  | on 30   | Batts   | all     |
| hours on | 05     | year   | Oct 05 | Oct 05  | 1-3=    | year    |
| 3 Oct    |        |        |        |         | LRC     |         |
| 05       | Batts  | Sun    | Batts  | Batts   |         | TOAR    |
| ]{.under | 1      | angle  | 1-3=   | 1-3=    | V/T=    | 453 on  |
| line}*** | &2=LRC | 48     | LRC    | LRC     | 4/8     |         |
|          |        |        |        |         |         | Batt    |
| ***[All  | Batt   | Steady | V      | V/T=4/8 | SA      | C/D     |
| sp       | !&2    | trend  | /T=7/9 |         | CANT=37 | ratio   |
| acecraft | V/T=4  |        |        | SA      | degs    |         |
| ]{.under |        | Batts  | SA     | CANT=22 |         | Batts   |
| line}*** | Shunt  | 1-3=   | C      | degs    |         | 1-3=LRC |
|          | de     | LRC    | ANT=37 |         |         |         |
|          | graded |        | degs   |         |         | Batts   |
|          |        | Batts  |        |         |         | 1-3     |
|          | SA     | 1&3V/  |        |         |         | V/T=4/8 |
|          | C      | T=7/11 |        |         |         |         |
|          | ANT=37 |        |        |         |         | SADE -1 |
|          | degs   | Batt2  |        |         |         | 7/29/05 |
|          |        | V      |        |         |         |         |
|          |        | T=8/11 |        |         |         | SA      |
|          |        |        |        |         |         | CANT=22 |
|          |        | SS     |        |         |         |         |
|          |        | t      |        |         |         |         |
|          |        | rigger |        |         |         |         |
|          |        | =18.98 |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Shunt  |        |         |         |         |
|          |        | De     |        |         |         |         |
|          |        | graded |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SA     |        |         |         |         |
|          |        | C      |        |         |         |         |
|          |        | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | De     | N      | D       | ###     | Nominal |
| *AVHRR** | ominal | graded | ominal | egraded | Nominal |         |
|          |        |        |        |         |         | 3A-B    |
|          |        | Scan   | Rare   | Bar     | 3A-B    | switch  |
|          |        | motor  | major  | code    | switch  | D       |
|          |        | c      | scan   | imagery | enabled | isabled |
|          |        | urrent | motor  | since   |         | 8/05/05 |
|          |        | surged | s      | 24 Sept |         |         |
|          |        | 24     | urges. |         |         | Channel |
|          |        | Sept   | Last   | TCE24   |         | 3B only |
|          |        | bar.   |        | OFF     |         |         |
|          |        | Wo     | In     | 4/14/04 |         |         |
|          |        | rsened | cident |         |         |         |
|          |        | 27     | 11     | Channel |         |         |
|          |        | Sept.  | /18/04 | 3B      |         |         |
|          |        | I      |        | only.   |         |         |
|          |        | magery |        |         |         |         |
|          |        | bar    |        |         |         |         |
|          |        | codes  |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Ch     |        |         |         |         |
|          |        | annels |        |         |         |         |
|          |        | 2&4    |        |         |         |         |
|          |        | APT    |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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   |         |         | In      |
|          |        |        |        |         |         | creased |
|          |        |        | FW     |         |         | degr    |
|          |        |        | Heater |         |         | adation |
|          |        |        | OFF    |         |         | since   |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | 21 Sept |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | Nominal |
|  MHS/MIU |        |        |        |         |         |         |
|          |        |        |        |         |         | Space   |
|          |        |        |        |         |         | View=0  |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | 1 Pixel |
|          |        |        |        |         |         | point   |
|          |        |        |        |         |         | error   |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        |         |         | 452     |
|          |        |        |        |         |         | closed  |
|          |        |        |        |         |         | op      |
|          |        |        |        |         |         | eration |
|          |        |        |        |         |         | is      |
|          |        |        |        |         |         | nominal |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | OF     | Opera  |        |         |         |         |
|          | F/Inop | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Turned | Scan   |        |         |         |         |
|          | off    | motor  |        |         |         |         |
|          | for    | and    |        |         |         |         |
|          | power  | a      |        |         |         |         |
|          | b      | ntenna |        |         |         |         |
|          | alance | pr     |        |         |         |         |
|          |        | oblems |        |         |         |         |
|          | 6      |        |        |         |         |         |
|          | /23/05 | End of |        |         |         |         |
|          |        | life   |        |         |         |         |
|          |        | test   |        |         |         |         |
|          |        | plans  |        |         |         |         |
|          |        | un     |        |         |         |         |
|          |        | derway |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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   |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Auto   |        |         |         |         |
|          |        | nomous |        |         |         |         |
|          |        | TED    |        |         |         |         |
|          |        | sh     |        |         |         |         |
|          |        | utdown |        |         |         |         |
|          |        | 24     |        |         |         |         |
|          |        | Sept   |        |         |         |         |
|          |        | com    |        |         |         |         |
|          |        | manded |        |         |         |         |
|          |        | back   |        |         |         |         |
|          |        | on the |        |         |         |         |
|          |        | same   |        |         |         |         |
|          |        | day    |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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    |         |         |
|          |        | Tra    |        | EMI     |         |         |
|          |        | nsient |        | causing |         |         |
|          |        | a      |        | erratic |         |         |
|          |        | nomaly |        | B       |         |         |
|          |        |        |        | ehavior |         |         |
|          |        | 1 Sept |        | in PMT  |         |         |
|          |        | 05     |        | cathod, |         |         |
|          |        |        |        | range 3 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | 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 |        | TCE2   | heater  |         |         |
|          | fol    |        | 4L&25L | turned  | CLOSED  |         |
|          | lowing |        | (HIRS  | OFF     | 9/14/04 |         |
|          | 7      |        | &      | 1/18/05 | no      |         |
|          | /25/04 |        | AVHRR) |         | cor     |         |
|          | U      |        | failed |         | rective |         |
|          | Vtrip. |        | 5      |         | action  |         |
|          |        |        | /13/98 |         | po      |         |
|          |        |        |        |         | ssible. |         |
|          |        |        | RCE    |         |         |         |
|          |        |        | ther   |         | AMSU-A1 |         |
|          |        |        | mostat |         | s       |         |
|          |        |        | failed |         | urvival |         |
|          |        |        | 5      |         | heaters |         |
|          |        |        | /13/98 |         | on      |         |
|          |        |        |        |         | 1       |         |
|          |        |        | T      |         | 0/29/03 |         |
|          |        |        | hermal |         |         |         |
|          |        |        | dow    |         |         |         |
|          |        |        | ntrend |         |         |         |
|          |        |        | occ    |         |         |         |
|          |        |        | urring |         |         |         |
|          |        |        | on     |         |         |         |
|          |        |        | spac   |         |         |         |
|          |        |        | ecraft |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N18 |
|          | *N12** | *N14** | *N15** |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12: On 24 Sept (JDAY 267) engineers responded to a call from the
POES controllers that a problem

had occurred with the N12 SEM. After analyzing the situation it was
noted that the SEM-TED autonomously shut off its high voltage at 07:43.
This is a known problem with pre-KLM SEMs that requires the TED be
reinitialized. A series of Command sent at 15:50z to recover the
instrument. The electron bias was commanded to level 2 inadvertently. It
was later commanded to level 5 (which was what users had stated the
value had been prior to the shutdown). Prior to the anomaly the electron
bias level telemetry read about 1.55 and after the recovery it read
about 0.55. On 26 Sept the CP was modified and another attempt was made
to set the level to 5. Once again the value did not match what it had
been prior to the shutdown. Therefore, the level was kept at this value
while additional investigations into their settings are undertaken.
Another attempt to set the level to 3 on 27 Sept at 23:50z.

NOAA-14: On 24 Sept (JDAY 267) at approx 11:21z (four hours after N12
SEM-TED lost synch) the N14 AVHRR experienced a

large scan motor current surge (up to 282 mAmps) with [no]{.underline}
corresponding surge in scan motor temp. By 11:52z the same day, the scan
motor current returned back to its nominal range of approximately 150
mAmps. This surge caused bar codes to appear in AVHRR imagery which
cleared up the next day at 07:30z when the MIRP rephase enable executed
out of stored commands (as it does at this time each day). Following its
recovery, the scan motor remained nominal for the next several days
(although it appeared to be operating in a wider range than in previous
weeks). However, early on 27 Sept, the scan motor current, this time
accompanied by the scan motor temperature again surged to even higher
levels where it has remained up to this time (illustration 1). Imagery
is now completely bar coded. In response, plans are in effect which will
enabled MIRP rephasing once per orbit over the South Pole (as it is done
on N16) rather than only once per day at 07:30z. This may help clear up
some of the imagery. The implementation of this change is scheduled to
occur within the next week.

Battery voltage continue to run slightly on the low side (illustration
2). The power engineer is studying the efficacy of slightly decreasing
the solar array offset in the coming days. No plans are yet in place for
such a move.

Discussions between EMOSS, NOAA and ORA engineers continue on the
possibility of performing MSU end-of-life testing whereby spacecraft
pitch rotation will be ceased for as long as one full orbit while the
MSU continuously views deep space. No date has been proposed for this
test, nor has "final official approval" yet been forthcoming. However,
EMOSS engineers continue analyzing the risks and implementation
strategies for performing such a test if and when it is approved. For
planning purposes only, the team is using a mid-November implementation
data (while actual implementation must occur before ORA moves into
NSOF.)

NOAA-15: The N15 spacecraft remains in a thermal downtrend although
which should continue as the sun angle on the spacecraft works its way
down to approximately 2 degrees in mid-October. The N15 AMSU's were
nominal during the past week (illustration 3) as was AVHRR and the HIRS
(illustration 4). All other N15 subsystems including ADACS (illustration
5) were performing nominally, from an engineering perspective, at the
time of this report.

NOAA-16: The N16 AVHRR scan motor began to operate within a more erratic
current range starting 20 Sept with spikes

beginning to occur on an irregular basis (illustration 6). By 24 Sept
(JDAY 267, the same day as N12 SEM and N14 AVHRR anomalies) bar codes
began to appear on the imagery. MIRP rephasing over the South Pole each
orbit continues to correct the bar codes but at the current time this
correction usually is not sustained for even a single orbit and so
almost every GAC and HRPT image now contains at least some bar coding
(illustration 7 and 8). This anomaly has become somewhat typical of the
N16 AVHRR which in the past two years has exhibited a variable cycle of
degradation followed by improvement. No actions or reconfigurations are
planned to compensate for this situation. The N16 AVHRR remains yellow
in status and the TOAR written against it in Oct 2004 is closed.
Otherwise, the N16 HIRS was unchanged from last week (illustration 9)
while the ADACS (specifically Y Gyro filtered data) became slightly more
erratic as moon incursions into the earth sensor began to wane during
the past two days (illustration 10).

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 11 and 12). In addition, the
gyros on N17, which had recently shown some tendencies toward
instability, remained generally stable during the past week (gyro-2 more
so than gyro-1 see illustration 13). Regardless, both the gyros on N17
are operating at, or near all time highs and increased vigilance over
them will be maintained into the foreseeable future.

The safe state recorder on N17 was changed from DTR1B to DDR2B to better
utilize the solid state recorders and free up one additional recorder.
This change was performed on 9/21/05 at 14:18:30.

NOAA-18: The VTX transmitter (APT data) swap which was originally
planned to occurred on 27 Sept has been postponed until

an as yet determined date.

The solar array 360 degree slew test was flawlessly implemented over the
course of three days last week: 20 Sept (macro and spacecraft
re-configuration loads), 21 Sept (360 degree reverse solar array slew),
22 Sept (360 degree forward solar array slew and reconfigure back to
standard operating profiles). In addition, EMOSS engineers provided data
to NASA and factory engineers who have performed some preliminary
analysis: Engineers did notice a difference in the frequency and the
amplitude of the pitch attitude error during the slew but more analysis
will be required before any conclusions can be drawn.

Another interesting sidelight from this test is that the N18 HIRS long
wave channels, which had been improving in recent weeks, began to
degrade starting at about the time of the first solar array slew on 21
Sept, a 360 degree reverse slew during the dark portion of the orbit
lasting from 16:15:40 through 16:43:05z (illustration 14). Analysis and
discussion is ongoing at this time in trying to determine if the slew
caused the HIRS degradation or if it was merely coincidence (or some of
both). Contrary to the first slew operation, there was no apparent
coincidental change in HIRS channel noise that occurred during the
second array test which ran on 22 Sept from 16:05:20 through 16:23:40z.
Furthermore, other than noise count increases on the HIRS long wave
channels, neither of the slews appeared to have had any effect on the
HIRS hardware and engineering values (i.e. filter motor current, housing
temps etc). Illustrations 15-25 provide some graphical depictions at a
one second update rate of the effects of these array moves as they
pertain to the HIRS, ADACS and EPS subsystems. For more details on this
situation go to the following web address:

<http://www.orbit.nesdis.noaa.gov/smcd/spb/multisensor/hirs/>.

N18 will have its safestate recorder changed in within the next week
(although the actual date remains TBD). The safe state recorder on N18
will be changed from DDR1B to DDR5B to better utilize the solid state
recorders and free up one additional recorder.

Misc: A solar eclipse (moon blocking the sun) will be intermittently
experienced by all POES spacecraft on 3 Oct between

07:35 and 13:27z. Using the EMOSS eclipse model which has proven highly
accurate in the past it was determined that no reconfigurations are
necessary at this time.

![](media/image1.png){width="8.25in" height="6.204861111111111in"}

**Illustration 1: NOAA-14 AVHRR Health Analysis**

(Imagery bar codes resulted from the 24 Sept surge but after MIRP
rephasing imagery returned to nominal. However, since the big surge on
27 Sept, all imagery is bar coded. Data gaps caused by reduced number of
N14 passes in recent days)

![](media/image2.png){width="8.25in" height="6.3597222222222225in"}

Illustration 2: N14 Power Balance Analysis

(Battery voltages getting a little lower than desired although still
well above undervoltage threshold. Turning on APT data, not likely given
the AVHRR anomaly, could change this equation. Possibility of a small
solar array offset move being recommended in the coming days.)

![](media/image3.png){width="8.25in" height="6.027083333333334in"}

Illustration 3: N15 AMSU Health Analysis

(Nominal with a continuing thermal downtrend which is expected to last
for 1-2 more weeks.)

![](media/image4.png){width="8.25in" height="6.3597222222222225in"}

Illustration 4: N15 HIRS and AVHRR Health Analysis

(Nominal and stable.)

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

Illustration 5: N15 Attitude Control Health Analysis

(Generally nominal and historically stable, but will continue to be
closely scrutinized by engineering, especially gyro-1.)

![](media/image6.png){width="8.25in" height="6.204861111111111in"}

Illustration 6: N16 AVHRR Health Analysis

(Degradation started on 20 Sept (JDAY 263) but bar code imagery didn't
become prevalent until 24 Sept.)

![](media/image7.png){width="7.75in" height="7.370138888888889in"}

**ILLUSTRATION 7: N16 AVHRR Imagery Analysis**

(Bar codes started on JDAY 267, 24 Sept, and have become more prevalent
since.)

![](media/image8.png){width="7.75in" height="7.004861111111111in"}

**ILLUSTRATION 8: N16 AVHRR GAC Analysis**

(Prevalent bar codes but highly variable with or without MIRP rephasing.
X indicates where bar codes start. In some case they go away without
MIRP rephasing in others they require rephasing. No synch delta plots
are available this week because of problems with the archive system.)

![](media/image9.png){width="8.125in" height="6.111111111111111in"}

**ILLUSTRATION 9: N16 HIRS Analysis**

(Generally nominal and stable.)

![](media/image10.png){width="8.25in" height="6.3597222222222225in"}

Illustration 10: N16 ADACS Analysis

(Generally nominal with some erratic performance in the Y_gyro filtered
data as the spacecraft comes out of moon intrusion.)

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

**ILLUSTRATION 11: N17 AMSU Analysis**

(Nominal and stable.)

![](media/image12.png){width="8.125in" height="6.263194444444444in"}

Illustration 12: N17 HIRS and AVHRR Analysis

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

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

Illustration 13: N17 ADACS Health Analysis

(About the same as last week. EMOSS continues to closely monitor gyro
performance.)

![](media/image14.png){width="8.145833333333334in"
height="6.584027777777778in"}

Illustration 14: N18 HIRS Channel noise relative to Array Slew Test
Implementation

(First instabilities occurred at about the same time as the first
(longer) slew operation. Coincidence or cause and effect? Investigation
is ongoing.

![](media/image15.png){width="8.125in" height="6.261111111111111in"}

Illustration 15: N18 Solar Array Drive Analysis for Test #1 on 21 Sept.

(Slew started at 16:15:40z and ended at 16:43:05z. Nominal execution.)

![](media/image16.png){width="8.125in" height="6.252777777777778in"}

Illustration 16: N18 Solar Array Drive Analysis for Test #2 on 22 Sept.

(Slew started at 16:05:17z and ended at 16:23:00z. Nominal execution.)

![](media/image17.png){width="8.5in" height="6.651388888888889in"}

Illustration 17: N18 Solar Array Drive SATCU data Analysis for Test #1
on 21 Sept.

(Slew started at 16:05:17z and ended at 16:23:00z. Nominal execution.)

![](media/image18.png){width="8.5in" height="6.5680555555555555in"}

Illustration 18: N18 Solar Array Drive SATCU data Analysis for Test #2
on 22 Sept.

![](media/image19.png){width="8.25in" height="6.455555555555556in"}

Illustration 19: N18 Solar Array Drive SATCU and Analog data Analysis
for Test #1 on 21 Sept.

![](media/image20.png){width="8.375in" height="6.447222222222222in"}

Illustration 20: N18 Solar Array Drive SATCU and Analog data Analysis
for Test #2 on 22 Sept.

![](media/image21.png){width="8.375in" height="6.471527777777778in"}

Illustration 21: N18 Solar Array Drive Test #1 on 21 Sept Relative to
HIRS DIG-A telemetry samples

(No obvious effect on Filter Wheel Housing temps. Similar outcome when
analyzing the 22 Sept test. )

![](media/image22.png){width="8.375in" height="6.4215277777777775in"}

Illustration 22: Additional HIRS Health Analysis short and long term
views

(No obvious effect from the Array move tests on 21 & 22 Sept)

![](media/image23.png){width="8.375in" height="6.4215277777777775in"}

Illustration 23: Test #1 (21 Sept) ADACS Health Analysis

![](media/image24.png){width="8.375in" height="6.4215277777777775in"}

Illustration 24: Test #2 (22 Sept) ADACS Health Analysis

![](media/image25.png){width="8.375in" height="6.447222222222222in"}

Illustration 25: Side by side comparison of Rwheel speeds from each
solar array test.