**POLAR Spacecraft Status As of: Tues Aug 09, 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   |         |         | APT/H   |
|          | only   | only   | only   |         |         | 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 | Co     | Co     |         | 137.62  | 1       |
| data)    | MHZ    | nflict | nflict | OFF     | MHZ     | 37.9125 |
|          |        | with   | with   | since   |         | MHZ     |
|          | Co     | N17    | N12    | 1       | C       |         |
|          | nflict |        | 7/29   | 1/15/00 | onflict |         |
|          | with   | VTX-2  | --     |         | with    |         |
|          | N15    | off    | 8/30   |         | N14     |         |
|          |        | 8/2/05 |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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     |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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-      |         |
| mhz      |        |        | 1,     | power   | Standby |         |
|          |        |        | 2,3-De | unused  |         |         |
| #        |        |        | graded |         | STX-1   |         |
| 4=2247.5 |        |        |        |         | Power   |         |
| mhz      |        |        |        |         | drop    |         |
|          |        |        |        |         | TOAR    |         |
|          |        |        |        |         | 443.    |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [Ar    | [Array | [Array | [Array  | [Array  | [Array  |
| ## POWER | rayOff | Off    | Off    | Off     | Off.    | Off.    |
|          | +60]   | -55]   | -45]   | -4      | --4     | -4      |
| (Array   | {.unde | {.unde | {.unde | 0]{.und | 0]{.und | 0]{.und |
| offset   | rline} | rline} | rline} | erline} | erline} | erline} |
| and CANT |        |        |        |         |         |         |
| angle,   | since  | Since  | Since  | Since   | Since   | [S]{.   |
| charge & | 6      | 8      | 1      | 7/16/02 | 1/29/04 | underli |
| V/T      | /23/04 | /21/03 | /25/01 |         |         | ne}ince |
| rates,   |        |        |        | Eclipse | Eclipse | 6/6/05  |
| eclipse  | E      | E      | Full   | all     | all     |         |
| states   | clipse | clipse | Sun    | year    | year    | Eclipse |
| and sun  | season | all    |        |         |         | all     |
| angle)   | 21Apr  | year   | E      | Sun     | Sun     | year    |
|          | -20Aug |        | clipse | Angle   | Angle   |         |
|          |        | Sun    | Season | 55      | at 68   | Batts   |
|          | Sun    | angle  |        |         |         | 1-3=LRC |
|          | Angle  | 48     | ended  | Do      | Steady  |         |
|          | 30     |        | 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=   | 25     | 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. | i       |         | Channel |
|          |        |        | Last   | mproved |         | 3B only |
|          |        |        |        | since 6 |         |         |
|          |        |        | In     | Aug 05  |         |         |
|          |        |        | cident |         |         |         |
|          |        |        | 11     | Channel |         |         |
|          |        |        | /18/04 | 3B      |         |         |
|          |        |        |        | only.   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | Opera  | Oper    | O       | Nominal |
| MSU-A1** |        |        | tional | ational | FF/INOP |         |
|          |        |        |        |         |         | Space   |
|          |        |        | Ch14   | Primary | Since   | view 1  |
|          |        |        | inope  | PLLO    | 1       |         |
|          |        |        | rative | chans   | 0/30/03 | Since   |
|          |        |        |        | 9-14    |         | 6/7/05  |
|          |        |        | 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   |         | Space   |
|          |        |        |        | Pos     |         | view-2  |
|          |        |        |        | ition-2 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | 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   | ####    |
|          | off    | tional | status | levels  | track   | #### TO |
|          | 6      |        |        | of      | misal   | AR 448  |
|          | /23/05 | Occa   | Since  | imagery | ignment |         |
|          |        | sional | 16 May | radi    | .       | ####### |
|          | For    | loss   | 05     | ometric |         | # Noise |
|          | power  | of     |        | noise   |         |  in lon |
|          | b      | Fwheel | FW     |         |         | g wave  |
|          | alance | synch  | Abrupt | TOAR    |         |         |
|          |        |        | return | 441     |         | ##      |
|          | Filter |        | to     | open    |         | ######  |
|          | Wheel  |        | n      |         |         | channel |
|          | turned |        | ominal | Occ     |         | s 1-12. |
|          | OFF    |        |        | asional |         |         |
|          | 10/    |        | TOAR   | major   |         | Some    |
|          | 17/02. |        | 445    | FM      |         | impr    |
|          |        |        | CLOSED | surges, |         | ovement |
|          |        |        | 7      | most    |         | re      |
|          |        |        | /12/05 | recent  |         | ported. |
|          |        |        |        |         |         |         |
|          |        |        | FW     | 12/9/04 |         | ##      |
|          |        |        | m      |         |         | ######  |
|          |        |        | ode=Hi |         |         |         |
|          |        |        | Powr   |         |         | Tested  |
|          |        |        |        |         |         | in high |
|          |        |        | FW     |         |         | power   |
|          |        |        | Heater |         |         | mode 12 |
|          |        |        | OFF    |         |         | July    |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | 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 | ON      |
|          |        | ominal | tional | ational |         |         |
|          |        |        |        |         | A-side  | A-Side  |
|          |        |        | A      | Mode    |         |         |
|          |        |        | -Side, | =AA     | All AGC | 121,    |
|          |        |        | AGC    |         | Mode    | 243,    |
|          |        |        | Mode   | A-side, |         | 406     |
|          |        |        |        | AGC     |         | FIXED   |
|          |        |        | Interm | Mode    |         | GAIN    |
|          |        |        | ittent |         |         | MODE    |
|          |        |        | fa     | (B-side |         |         |
|          |        |        | ilures | in FG   |         | Since   |
|          |        |        | for    | mode)   |         | 18 Jul  |
|          |        |        | 243MHz |         |         | 05      |
|          |        |        | 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       | OV      |
|          |        | (giant |        | iffuser | tandard | testing |
|          |        | step)  |        | inop    | Ops     | co      |
|          |        | ops    |        |         | Pr      | ntinues |
|          |        | 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 |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N18 |
|          | *N12** | *N14** | *N15** |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12 No change from last week. EMOSS engineers are analyzing the
efficacy of turning on failed payloads for use as

resisters in the power balance equation. Carl Gliniak is EMOSS POC. On
29 July, N12 entered into a VTX conflict with N15 with N15 VTX-1 being
turned off as a result.

NOAA-14: No changes since previous report. AVHRR health remains nominal
and stable (illustration 1). Turning off VTX-2

(APT data) on 2 Aug resulted in a minor improvement in N14's power
balance situation without any additional shunt stress (illustration 2).

NOAA-15: The N15 AMSU-A1 and A-2 payloads were nominal and stable last
week although the AMSU-B did show some minor signs of less than stable
behavior within its scan motor current value (illustration 3) as did the
N15 AVHRR (illustration 4). This behavior did not have any apparent
impact on imagery products (illustration 5) and no concerns were
forwarded to EMOSS engineers from the products community. Conversely,
the N15 HIRS, until not too long ago a very erratically performing
payload, remained rock solid stable during the past week for the 12^th^
week since self correcting from a major malfunction (illustration 6).

On 29 July at 14:00z, VTX-1 on N15 was turned off through 30 Aug 07:00z
because on an RF conflict with N12. Therefore, for almost the entire
month of August there will be no N15 APT data.

N15 power situation remained nominal now that the eclipse season has
ended. No reconfigurations are expected or planned.

NOAA-16: N16 AMSU's were all nominal during the past week (illustration
7) while the AVHRR continued to perform

with a little less stability and at slightly worse levels than the
previous week (illustration 8). On the other hand, even

with the AVHRR operating at historically anomalous scan motor current
and synch delta levels during the past 4-5

days, its imagery has cleared up with no bar codes or wave patterns
evident since 6 Aug (illustration 9, 10 and 11). This is an
unprecedented development in the life cycle of this particular AVHRR and
there is currently no explanation for the improvement in imagery while
telemetry remains so marginal. Conversely, earlier in the week the N16
HIRS started to show a trend toward higher filter motor current values
only to reverse itself later in the week and return back to more recent
stable levels (illustration 12).

The N16 ADACS remained stable throughout the past week (illustration
13).

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 as was the ADACS, including gyro-2 motor
current whose surge several weeks ago resulted in a TOAR investigation
(illustrations 14-16).

NOAA-18: The N18 AMSU's remained parked in space view and performed in a
nominal and stable manner during the past

week (illustration 17).

The N18 AVHRR and HIRS were also nominal and stable during the past week
(illustration 18). However, on 5 Aug, the AVHRR automatic 3A-B switch
was disabled and the payload was configured for 3B only. This is
expected to be a permanent configuration. Sally House was EMOSS POC for
this operation.

On August 10^th^ 2005, EMOSS engineer Jon Woodward will be replacing all
of the CPU-A (backup CPU) telemetry with MIMU raw telemetry. This is
planned for Rev 1160, at 17:49z. The tables are being changed to gather
data at a 10 Hz rate for additional information in the ongoing pitch
anomaly investigation (TOAR 447). The new table will only be onboard for
the duration of a single contact. It will be uplinked at the start of
the contact, and another table uplinked at the end. The second table
uplinked will be to restore the table to its previous value. Two changes
are being made. One replaces the values in CPU telemetry table 1 with
MIMU raw data (MDATABUF) and the other changes how the CPU telemetry
tables are read. Usually the tables are read in this fashion, one read
per minor frame; Table 1, 2 then 1, 3 then 1, 4 and so on. This will be
changed for the contact to read only Table 1. This change will also be
backed out at the end of the contact. Additionally, the SAD status word
will be inserted into CPU-B telemetry table 1, replacing the pitch
torquer command point. This point already replaces the MSH of command
time and will also be backed out at the end of the contact. During the
time that this new table is onboard, no CPUA telemetry will be valid.
Also, the CPU sync words will be overwritten, and therefore CPU-A sync
will be lost. Data will be gathered using a raw dump of the telemetry
data.

Two weeks previously, The SEDL reported dropouts in the SARR signal on
N18. EMOSS engineer Will Chadwick investigated this situation and
discovered no spacecraft problems relating to this event. Further
investigation has led to the consensus that the problem lies with the
receiving ground equipment (as documented by Xuan Nguyen in his letter
documenting this investigation entitled "NOAA-18 Downlink Anomaly" dated
8/8/2005).

31 August is currently the proposed date for making N18 operational but
this has not yet been finalized.

![](media/image1.png){width="8.25in" height="6.2659722222222225in"}

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

**(nominal and stable)**

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

Illustration 2: N14 Power Analysis

(Nominal and stable. Note the improvement in Battery voltage that
occurred with the VTX-2 turnoff on JDAY 214.

![](media/image3.png){width="8.625in" height="6.302083333333333in"}

Illustration 3: N15 AMSU Health Analysis

(A1 and A2 are nominal and stable but AMSU-B may warrant some additional
scrutiny.

![](media/image4.png){width="8.125in" height="6.170833333333333in"}

Illustration 4: N15 AVHRR Health Analysis

(Less stable than desired. May also warrant additional scrutiny.)

![](media/image5.png){width="8.0in" height="6.558333333333334in"}

Illustration 5: N15 AVHRR Imagery & Synch Delta Analysis

(No apparent impact of scan motor instabilities on imagery and only
minor impact on synch delta, so far.)

![](media/image6.png){width="8.25in" height="6.2659722222222225in"}

Illustration 6: N15 HIRS Health Analysis

(Nominal and stable.)

![](media/image7.png){width="8.25in" height="6.027777777777778in"}

Illustration 7: N16 AMSU's Health Analysis

(All three nominal and stable.)

![](media/image8.png){width="8.375in" height="6.360416666666667in"}

Illustration 8: N16 AVHRR Health Analysis

(Not better than the week previous.)

![](media/image9.png){width="8.0in" height="6.433333333333334in"}

Illustration 9: N16 AVHRR HRPT Imagery Analysis

(For some unexplained reason, HRPT imagery has been completely clean
since early on 5 Aug.)

![](media/image10.png){width="8.125in" height="6.76875in"}

Illustration 10: N16 AVHRR GAC Imagery Analysis

(Also, for some unexplained reason, GAC imagery has been completely
clean since early on 6 Aug. Even though MIRP rephase is required on
every orbit.)

![](media/image11.png){width="8.125in" height="5.6875in"}

Illustration 11: N16 HRPT Imagery Wave Pattern and Synch Delta Analysis

(Even more unexplained, no wave patterns observed in the limited number
of sample analyzed for this perturbation even though synch delta remains
pegged and scan motor current is well within the range where wave
patterns are typically sustained.

![](media/image12.png){width="8.25in" height="6.3597222222222225in"}

Illustration 12: N16 HIRS Health Analysis

(After giving pause for concern last week, the filter motor seems to
have settled back into a more nominal and stable pattern.)

![](media/image13.png){width="8.25in" height="6.264583333333333in"}

Illustration 13: N16 ADACS Health Analysis

(Appears nominal and stable from this limited perspective.)

![](media/image14.png){width="8.375in" height="6.45625in"}

Illustration 14: N17 AMSU's Health Analysis

(Nominal and stable, except for AMSU-A1 which is inoperative.)

![](media/image15.png){width="8.25in" height="6.3597222222222225in"}

Illustration 15: N17 AVHRR & HIRS Health Analysis

(Nominal and stable.)

![](media/image16.png){width="8.375in" height="6.360416666666667in"}

Illustration 16: N17 ADACS Health Analysis

(Nominal and stable, especially gyro-2 which has provided reason for
concern in past weeks.)

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

Illustration 17: N18 AMSU's Health Analysis

(Nominal and stable.)

![](media/image18.png){width="8.25in" height="6.3597222222222225in"}

Illustration 18: N18 AVHRR & HIRS Health Analysis

(Nominal and stable.)

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING August 5, 2005

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

  FRI. 07/29 -300 msec  +220 msec  -235 msec  +141 msec  +083 msec  -035 msec

  SAT. 07/30 -300 msec  +220 msec  -236 msec  +142 msec  +083 msec  -034 msec

  SUN. 07/31 N/A        +221 msec  -236 msec  +146 msec  +085 msec  -033 msec

  MON. 08/01 -299 msec  +220 msec  -237 msec  +146 msec  +085 msec  -030 msec

  TUE. 08/02 -301 msec  +221 msec  -238 msec  +146 msec  +087 msec  -030 msec

  WED. 08/03 -305 msec  +224 msec  -240 msec  +147 msec  +087 msec  -028 msec

  THU. 08/04 N/A        +224 msec  -241 msec  +147 msec  +085 msec  -027 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