**POLAR Spacecraft Status As of: Weds Aug 24, 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:     | Trans   |
| ponent** | 1      | 2      | 1      | 1441=AN | 2225=AN | PM      |
|          | 651=AN | 039=AN | 806=AN |         |         | 1       |
|          |        |        |        | GAC&LAC | GAC&LAC | 4:00=AN |
|          | STIP   | STIP   | GAC    | data    | data    |         |
|          | data   | data   | data   |         |         | [Oper   |
|          | only   | only   | only   |         |         | ational |
|          |        |        |        |         |         | 30Aug0  |
|          |        |        |        |         |         | 5]{.und |
|          |        |        |        |         |         | erline} |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | APT/H   |
|          |        |        |        |         |         | RPT/GAC |
+----------+--------+--------+--------+---------+---------+---------+
| **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  |
|          | 5B     |        |        | 3A      | 1B      |         |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        | 4B STIP |         | 450     |
|          |        |        |        | only    |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | OFF    | I       | #2 ON   | #2 ON   |
|          |        |        |        | NOP/Off |         |         |
| (APT     | 137.50 | Since  | Co     |         | 137.62  | 1       |
| data)    | MHZ    | 8/2/05 | nflict | OFF     | MHZ     | 37.9125 |
|          |        |        | with   | since   |         | MHZ     |
|          | Co     | Co     | N12    | 1       | C       |         |
|          | nflict | nflict | 7/29   | 1/15/00 | onflict |         |
|          | with   | with   | --     |         | with    |         |
|          | N15    | N17    | 8/30   |         | N14     |         |
|          |        |        |        |         |         |         |
|          |        | No     |        |         |         |         |
|          |        | turnon |        |         |         |         |
|          |        | date   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BTX**  | #1     | #2     | #1     | #1      | ###     | #2      |
|          |        |        |        |         | #### #2 |         |
|          | 136.77 | 137.77 | 137.35 | 137.35  |         | 137.77  |
|          | MHZ    | MHZ    | MHZ    | MHZ     | 137.77  | MHZ     |
|          |        |        |        |         | MHZ     |         |
|          |        |        |        | [Plan   |         | [Plan   |
|          |        |        |        | change  |         | change  |
|          |        |        |        | of      |         | of      |
|          |        |        |        | ass     |         | ass     |
|          |        |        |        | ignment |         | ignment |
|          |        |        |        | 8/3     |         | 8/3     |
|          |        |        |        | ]{.unde |         | 0]{.und |
|          |        |        |        | rline}0 |         | erline} |
+----------+--------+--------+--------+---------+---------+---------+
| **STX**  | 1 --   | 3 --   | 2-Omni | 1 --    | 3 --    | 3 -     |
|          | HRPT;  | HRPT   | HRPT   | HRPT;   | HRPT    | HRPT    |
| #        |        |        |        |         |         |         |
| 1=1698.0 | 2,3 -  | 2, 1   | Power  | 2--     | TOAR424 | 1&2     |
| mhz      | Pl     | --     | drop   | Pl      | low     | P       |
|          | ayback | Pl     |        | ayback; | power   | layback |
| #        |        | ayback | TOAR   |         |         |         |
| 2=1702.5 |        |        | 446    | 4 --    | 2 & 4   | 4-Test  |
| mhz      |        |        |        | P       | P       | &       |
|          |        |        | 4-Pl   | layback | layback | Standby |
| #        |        |        | ayback |         |         |         |
| 3=1707.0 |        |        |        | 3 low   | 1-      | **[Plan |
| mhz      |        |        | 1,     | power   | Standby | change  |
|          |        |        | 2,3-De | unused  |         | of      |
| #        |        |        | graded |         | STX-1   | ass     |
| 4=2247.5 |        |        |        | **[Plan | Power   | ignment |
| mhz      |        |        |        | change  | drop    | 8/30]   |
|          |        |        |        | of      | TOAR    | {.under |
|          |        |        |        | ass     | 443.    | line}** |
|          |        |        |        | ignment |         |         |
|          |        |        |        | 8/30]   |         |         |
|          |        |        |        | {.under |         |         |
|          |        |        |        | line}** |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [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  | E      | E      | Full   | all     | all     |         |
| states   | clipse | clipse | Sun    | year    | year    | Eclipse |
| and sun  | season | all    |        |         |         | all     |
| angle)   | ended  | year   | E      | Sun     | Sun     | year    |
|          | 20Aug  |        | clipse | Angle   | Angle   |         |
|          |        | Sun    | Season | 53      | at 68   | Batts   |
|          | Sun    | angle  |        |         |         | 1-3=LRC |
|          | Angle  | 48     | ended  | Do      | Steady  |         |
|          | 27     |        | 7      | wntrend | trend   | Batts   |
|          | dow    | Steady | /28/05 | to 41   |         | 1-3     |
|          | ntrend | trend  |        | on 30   | Batts   | V/T=4/8 |
|          | to 12  |        | Sun    | Oct 05  | 1-3=    |         |
|          | m      | Batts  | Angle  |         | LRC     | SADE -1 |
|          | id-Oct | 1-3=   | 20     | Batts   |         | 7/29/05 |
|          | 05     | LRC    | dow    | 1-3=    | V/T=    |         |
|          |        |        | ntrend | LRC     | 4/8     | SA      |
|          | Batts  | Batts  | to 2   |         |         | CANT=22 |
|          | 1      | 1&3V/  | degs   | V/T=4/8 | SA      |         |
|          | &2=LRC | T=7/11 | on 10  |         | CANT=37 | PSSS    |
|          |        |        | Oct 05 | SA      | degs    | enabled |
|          | Batt   | Batt2  |        | CANT=22 |         | 30May   |
|          | !&2    | V      | Batts  | degs    |         |         |
|          | V/T=4  | T=8/11 | 1-3=   |         |         |         |
|          |        |        | LRC    |         |         |         |
|          | Shunt  | SS     |        |         |         |         |
|          | de     | t      | V      |         |         |         |
|          | graded | rigger | /T=7/9 |         |         |         |
|          |        | =18.98 |        |         |         |         |
|          | SA     |        | SA     |         |         |         |
|          | C      | Shunt  | C      |         |         |         |
|          | ANT=37 | De     | ANT=37 |         |         |         |
|          | degs   | graded | degs   |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SA     |        |         |         |         |
|          |        | C      |        |         |         |         |
|          |        | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | N      | N      | D       | ###     | Nominal |
| *AVHRR** | ominal | ominal | ominal | egraded | 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 |         | #### ON |
|          |        |        |        |         | 1 Pixel |         |
|          | Turned | Opera  | Yellow | High    | cross   | Status  |
|          | off    | tional | status | levels  | track   | dow     |
|          | 6      |        |        | of      | misal   | ngraded |
|          | /23/05 | Occa   | Since  | imagery | ignment | to      |
|          |        | sional | 16 May | radi    | .       | Yellow  |
|          | For    | loss   | 05     | ometric |         | 15 Aug  |
|          | power  | of     |        | noise   |         | 05      |
|          | b      | Fwheel | FW     |         |         | (HIRS   |
|          | alance | synch  | Abrupt | TOAR    |         | ch      |
|          |        |        | return | 441     |         | annel-1 |
|          | Filter |        | to     | open    |         | also    |
|          | Wheel  |        | n      |         |         | Yellow) |
|          | turned |        | ominal | Occ     |         |         |
|          | OFF    |        |        | asional |         | ####    |
|          | 10/    |        | TOAR   | major   |         | #### TO |
|          | 17/02. |        | 445    | FM      |         | AR 448  |
|          |        |        | CLOSED | surges, |         |         |
|          |        |        | 7      | most    |         | ####### |
|          |        |        | /12/05 | recent  |         | # Noise |
|          |        |        |        |         |         |  in lon |
|          |        |        | FW     | 12/9/04 |         | g wave  |
|          |        |        | m      |         |         |         |
|          |        |        | ode=Hi |         |         | ##      |
|          |        |        | Powr   |         |         | ######  |
|          |        |        |        |         |         | channel |
|          |        |        | FW     |         |         | s 1-12. |
|          |        |        | Heater |         |         |         |
|          |        |        | OFF    |         |         | Some    |
|          |        |        |        |         |         | impr    |
|          |        |        |        |         |         | ovement |
|          |        |        |        |         |         | re      |
|          |        |        |        |         |         | 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 | ON      |
|          | 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 | 121,    |
|          |        |        | AGC    |         | Mode    | 243,    |
|          |        |        | Mode   | A-side, |         | 406 to  |
|          |        |        |        | AGC     |         | AGC     |
|          |        |        | Interm | Mode    |         | Mode    |
|          |        |        | ittent |         |         |         |
|          |        |        | fa     | (B-side |         | 15 Aug  |
|          |        |        | ilures | in FG   |         | 05      |
|          |        |        | for    | mode)   |         |         |
|          |        |        | 243MHz |         |         |         |
|          |        |        | A&B    | 243 MHz |         |         |
|          |        |        |        | = INOP. |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SARP** |        | OFF    | N      | Nominal | Nominal | ON      |
|          |        |        | ominal |         |         |         |
|          |        | Power  |        | RCVR    |         | A-side  |
|          |        | F      | RCVR   | B/W = 2 |         | 23 May  |
|          |        | ailure | B/W =  |         |         |         |
|          |        |        | 2      |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SEM**  | ON/N   | Opera  | N      | Nominal | Nominal | ON      |
|          | 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 |         |         |
|          |        | pr     |        | in PMT  |         |         |
|          |        | oducts |        | cathod, |         |         |
|          |        | di     |        | range 3 |         |         |
|          |        | vision |        |         |         |         |
|          |        | 7      |        |         |         |         |
|          |        | /25/05 |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | 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 continue to be minimal
(no passes at all between 18 Aug 09:30z and 22 Aug

09:30z) in recent days. At some point during that four day pass gap, N12
eclipse season ended (although GEODAT still is showing the spacecraft as
eclipsing). EMOSS power engineer Carl Gliniak continues to analyze the
efficacy of turning on failed payloads for use as resisters in the N12
power balance equation.

NOAA-14: No changes since previous report. Power balance remains nominal
and stable as does AVHRR health and imagery

although VTX-2 (APT) remains off until TBD because of an RF conflict
with N17.

NOAA-15: The N15 spacecraft is currently in a thermal downtrend. The N15
HIRS, AMSU-A1 and A-2 payloads were nominal and stable last week as was
the AMSU-B (illustration 1). The N15 AVHRR scan motor stabilized from a
previous "instability" two weeks ago and was generally nominal during
the past week (illustration 2) as was the N15 HIRS (illustration 3).
EMOSS engineers were monitoring the gyro-1 current on N15 a little more
closely in the recent past as some small instabilities increased the
gyro-1 current value to higher than preferred values (although still
below yellow high, illustration 4). Jim Sheperd is POC.

NOAA-16: After showing some signs of improvement last week, the N16
AVHRR scan motor, became more erratic again

during the past week with some surging currents, a resumption of bar
coded imagery and continually pegged synch delta values. In the past
day, imagery has begun to improve but this payload remains unpredictable
at best (illustration 5 and 6).

The N16 HIRS is also showing slightly less stability as its high low
range has increased to its widest value ever (illustration 7). However,
the HIRS filter motor current, filter motor temperature, filter wheel
synch and filter wheel period monitor all remain within nominal values
at the current time.

All other N16 payloads (AMSU's depicted in illustration 8) and
subsystems (including ADACS illustration 9) were nominal during the past
week.

On 30 Aug, N18 is scheduled to become operational. In response to this
event, NOAA will be reconfiguring the N16 and N18 STX and BTX
assignments. Starting 30 August, the N16 STX assignment will be as
follows: STX-1 (current HRPT) will become a playback transmitter while
STX-2 (currently used for playbacks) will become the HRPT transmitter.
In addition, on the same date, the current active Beacon transmitter
(BTX-1) will be turned off and BTX-2 will be activated. Will Chadwick is
EMOSS POC for these reconfigurations.

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 10 and 11). However, one area
bearing additional scrutiny remains the N17 gyros. During the past week
gyro-1 (NOT the gyro that recently surged) began to show slightly less
than desired stability (illustration 12) although it remains below any
limit values. This gyro is now operating at or near its all time high
values and with the loss of gyro 3 and the recent instability of gyro-2
this subsystem will continue to require close and frequent monitoring.
Jim Sheperd is EMOSS POC for this subsystem.

NOAA-18: The date for transitioning N18 to operational status remains 30
Aug. On that date, the STX assignments (along with

those on N16) will be changed for N18 in the following manner: STX-3
(currently HRPT) will be made a playback transmitter while STX-1
(currently playback) will be made the HRPT transmitter. All other N18
STX assignments will remain as they now are. In addition to STX changes,
the Beacon transmitter (BTX-2) will be operationally replaced by BTX-1.

Several tests occurred on N18 during the past week primarily those
supporting IJPS configuration and software compatibility test headed up
by EMOSS engineer Will Chadwick. These tests executed successfully on 22
and 23 Aug although there was some problem during post pass with TCS-3
and its ability to obtain payload data which was not attributed to the
software being tested. The crews were able to successfully execute the
ground schedule and retrieve recorded data from N14, N17, and N18. For
N17 and N18, NOOOPs were successfully sent to the satellites in clear
and encrypted modes. A stored command table was also loaded to the
backup SCP for these satellites. Any transfers that did not archive were
reshipped on TCS1 where archiving was working correctly. For more
information on this test refer to Procedure 050819-0835 written and
coordinated by Will Chadwick

Another test that occurred with N18 last week was on 22 Aug at 17:30z
when EMOSS engineer Jim Walters oversaw

an operation that placed the spacecraft into to high speed dwell mode
monitoring the HIRS filter wheel motor current. This operation was
performed at the request of the N18 HIRS TOAR tiger team and the
spacecraft downlink was nominally returned back to normal telemetry mode
2 minutes later. During these two minutes of high speed dwell, all
science and CPU data telemetry was lost.

The N18 payload suite performed in a nominal and stable manner during
the past week (illustrations 13-16) as did the rest of the subsystems on
N18 (illustrations 17-19). 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. However,
since the HIRS remains less than 100% nominal and yellow in status.

![](media/image1.png){width="8.25in" height="6.027083333333334in"}

**Illustration 1: NOAA-15 Payload (AMSU's & HIRS) Health Analysis**

(Nominal and stable note the strong thermal downtrend which is expected
to continue into mid-October)

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

Illustration 2: N15 AVHRR Analysis

(Scan motor stabilized from the previous week. Otherwise everything
looks generally nominal)

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

Illustration 3: N15 HIRS Analysis

(Nominal and stable)

![](media/image4.png){width="8.25in" height="6.394444444444445in"}

Illustration 4: N15 Gyro Health Analysis

(Just a little concerned about the recent increases in the gyro-1 spin
motor current. As the trend data on the right shows the recent increases
are not outside previous performance. However, with only 2 gyros
remaining, stability is the preference and vigilance is the watchword.)

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

Illustration 5: N16 AVHRR Health Analysis

(More instabilities in recent days after showing some signs of
improvement last week.)

![](media/image6.png){width="8.125in" height="6.808333333333334in"}

Illustration 6: N16 AVHRR Imagery Analysis

(Bar codes are back and wave patterns still persist.)

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

Illustration 7: N16 HIRS Health Analysis

(A little bit of concern about the filter motor current high low range
and trend at this time.)

![](media/image8.png){width="8.375in" height="6.11875in"}

Illustration 8: N16 AMSU's Health Analysis

(All three nominal and stable.)

![](media/image9.png){width="8.125in" height="6.095833333333333in"}

Illustration 9: N16 Attitude Health Analysis

(Nominal and stable from this limited perspective.)

![](media/image10.png){width="8.375in" height="6.45625in"}

Illustration 10: N17 AMSU Health Analysis

(Both remaining AMSU's nominal and stable)

![](media/image11.png){width="8.375in" height="6.45625in"}

Illustration 11: N17 AVHRR & HIRS Analysis

(Both nominal and stable.)

![](media/image12.png){width="8.25in" height="6.354861111111111in"}

Illustration 12: N17 Gyro Analysis

(Similar concerns with this gyro-1 as with that on N15. Recent increases
and instabilities on gyro-1, see graph upper right, coupled with a loss
of gyro redundancy from the loss of gyro-3 with recent instabilities on
gyro-2 added in, provide engineers with ample cause for increased
vigilance.)

![](media/image13.png){width="8.25in" height="6.354861111111111in"}

Illustration 13: N18 AMSU Analysis

(Nominal and stable)

![](media/image14.png){width="8.375in" height="6.460416666666666in"}

Illustration 14: N18 MHS Health Analysis

(Nominal and stable)

![](media/image15.png){width="8.25in" height="6.354861111111111in"}

Illustration 15: N18 AVHRR Health Analysis

(Nominal and stable.)

![](media/image16.png){width="8.25in" height="6.354861111111111in"}

Illustration 16: N18 HIRS Health Analysis

(Nominal and stable.)

![](media/image17.png){width="8.25in" height="6.363888888888889in"}

Illustration 17: N18 EPS Analysis

(Nominal and stable.)

![](media/image18.png){width="8.25in" height="6.363888888888889in"}

Illustration 18: N18 DHS-Comm Analysis

(STX 1 and 3 assignments will be swapped on 30 Aug. STX-1 will become
HRPT and

STX 3 a playback transmitter.)

![](media/image19.png){width="8.25in" height="6.3597222222222225in"}

Illustration 19: N18 ADACS Health Analysis

(About the same as previous weeks.)

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING August 19, 2005

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

  FRI. 08/12 N/A        +227 msec  -248 msec  +153 msec  +092 msec  -019 msec

  SAT. 08/13 N/A        +227 msec  -249 msec  +153 msec  +092 msec  -018 msec

  SUN. 08/14 N/A        +230 msec  -251 msec  +154 msec  +094 msec  -014 msec

  MON. 08/15 -318 msec  +230 msec  -251 msec  +154 msec  +094 msec  -013 msec

  TUE. 08/16 N/A        +230 msec  -252 msec  +154 msec  +095msec   -010 msec

  WED. 08/17 -311 msec  +233 msec  -253 msec  +158 msec  +095msec   -010 msec

  THU. 08/18 -317 msec  +233 msec  -257 msec  +159 msec  +098 msec  -008 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

[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