**POLAR Spacecraft Status As of: Tues, 25 Jul 06, 22:00 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     | 21     | 17     | 1       | 2       | 1       |
|          | :59=AN | :10=AN | :49=AN | 5:04=AN | 2:23=AN | 3:49=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**    |        |        |        |         |         |         |
|          | Rec    | OBP1   |        |         |         |         |
|          | ursive | inope  |        |         |         |         |
|          | SCT    | 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  |        | TOAR444 |         |         |
|          |        | inop)  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO      | NO      | NO      |
| VETO**   |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | [N     | [N     | [N     | ###     | #####   | [       |
| *ADACS** | ominal | ominal | ominal | ### [RG | # [Nomi | Nominal |
|          | Mode]  | Mode]  | Mode]  | YRO Mod | nal Mod | Mod     |
|          | {.unde | {.unde | {.unde | e]{.und | e]{.und | e]{.und |
|          | rline} | rline} | rline} | erline} | erline} | erline} |
|          |        |        |        |         |         |         |
|          | RG     | Rgm    | Rg     | E       | Rgmode= | Gyro-A  |
|          | mode=M | ode=Di | mode=M | stimate | Monitor | MIMU-2  |
|          | onitor | sabled | onitor | Y-ROLL  |         |         |
|          |        |        |        |         | Gyro-3  | Z-wheel |
|          | Gyro   | Gyro   | Gyro-3 | Rgmode= | Off     | -Pitch  |
|          | cha    | cha    | Off    | PASSIVE | 6/10/04 |         |
|          | ns=XYZ | ns=XYZ | 6      |         |         | TOAR    |
|          |        |        | /26/00 | Gyros-1 | Gyro    | 447     |
|          |        |        | Gyro   | & 3     | ch      |         |
|          |        |        | cha    | I       | ans=AAB |         |
|          |        |        | ns=AAB | nop/Off |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Gyro    |         |         |
|          |        |        |        | chans   |         |         |
|          |        |        |        | XA-ZB   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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  | -500   |         | -1500   | -1500   |
|          | daily  | bia    | mS     | -1500   | mS      | mS      |
|          | bi     | s--7.0 | 12     | mS      | 31Dec05 | 31Dec05 |
|          | as+6.5 | mS     | /31/05 | 31Dec05 |         |         |
|          | 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      | each   | daily  | orbit   |         |         |
|          | nabled | orbit  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **TIP    | 1      | 2      | 2      | 2       | 1       | 1       |
| SIDE**   |        |        | (since | (dri    |         |         |
|          |        | Since  | 4      | fting?) | Analog  | Analog  |
|          |        | 19 Jul | /3/03) |         | telem   | telem   |
|          |        | 06     |        | since   | d       | drift?  |
|          |        |        | #2 has | 4/18/05 | rifting |         |
|          |        |        | 3      |         |         |         |
|          |        |        | chans  |         | Swap    |         |
|          |        |        | inop   |         | con     |         |
|          |        |        |        |         | sidered |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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  | Safes   |
|          | estate | 1B     | 1B EOT | festate | ate=SSR | tate=5B |
|          | 5B     |        |        | 3A      | 2B      |         |
|          |        |        |        |         |         | Current |
|          |        |        |        | 4B STIP |         | spikes  |
|          |        |        |        | only    |         |         |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        |         |         | 450     |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | #1 ON  | OFF /   | #2 ON   | #2 ON   |
|          |        | (no    |        | INOP    |         |         |
| (APT     | 137.50 | minal) | 137.50 |         | 137.62  | 1       |
| data)    | MHZ    |        | MHZ    | since   | MHZ     | 37.9125 |
|          |        | Since  |        | 1       |         | MHZ     |
|          |        | 8/2/05 | Turned | 1/15/00 |         |         |
|          |        |        | on 21  |         |         | Swapped |
|          |        |        | Jul at |         |         | 20 Jul  |
|          |        |        | 21:00z |         |         | 06      |
+----------+--------+--------+--------+---------+---------+---------+
| **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   | 2      | 1--     | TOAR424 | 3 -     |
| mhz      | Pl     | --     | Om     | P       | low     | P       |
|          | ayback | Pl     | ni=rcp | layback | power   | layback |
| 2 = lcp  |        | ayback |        |         |         |         |
| 1702.5   |        |        | Power  | 4 --    | 2 & 4   | 2-P     |
| mhz      |        |        | Drop   | P       | P       | layback |
|          |        |        |        | layback | layback |         |
| 3= rcp   |        |        | TOAR   |         |         | 4-Test  |
| 1707.0   |        |        | 446    | & MCM   | 1-      | &       |
| mhz      |        |        |        | usage   | Standby | Standby |
|          |        |        | 4-Pl   |         |         |         |
| 4= rcp   |        |        | ayback | 3 low   | STX-1   |         |
| 2247.5   |        |        |        | power   | Power   |         |
| mhz      |        |        | 1,     | unused  | drop    |         |
|          |        |        | 2,3-De |         | TOAR    |         |
|          |        |        | graded |         | 443.    |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [Ar    | [Array | [Array | [Array  | [Array  | [Array  |
| ## POWER | rayOff | Off    | Off    | Off     | Off.    | Off.    |
|          | -60]   | -50]   | -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  | [Since  |
| charge & | 6/     | 22     | 1/     | 7/16/]  | 1/29/0  | 6/6/0   |
| V/T      | 28/06] | Nov05] | 25/01] | {.under | 4]{.und | 5]{.und |
| rates,   | {.unde | {.unde | {.unde | line}02 | erline} | erline} |
| eclipse  | rline} | rline} | rline} |         |         |         |
| states   |        |        |        | Eclipse | Eclipse | Eclipse |
| and sun  | E      | Batts  | E      | all     | all     | all     |
| angle)   | clipse | 1&3V   | clipse | year    | year    | year    |
|          | season | /T=6/9 | season |         |         |         |
|          | waning |        | waning | Sun     | Sun     | Sun     |
|          | ends   | Batt2  | ends 1 | Angle   | Angle   | Angle   |
|          | 12Aug  | VT=7/9 | Aug    | 51      | at 68   | 71      |
|          |        |        |        |         |         | steady  |
|          | Sun    | SSU    | Sun    | Down    | Steady  | trend   |
|          | Angle  | off 5  | Angle  | trend   | trend   |         |
|          | 34     | May to | 31     | to 33   |         | Batts   |
|          | trend  | r      |        | in late | Batts   | 1-3=LRC |
|          | down   | educed | dow    | Oct     | 1-3=    |         |
|          | to 9   | load   | ntrend |         | LRC     | Batts   |
|          | in Oct |        | to 5   | Batts   |         | 1-3     |
|          |        | E      | in     | 1-3=    | V/T=    | V/T=4/8 |
|          | Batts  | clipse | m      | LRC     | 4/8     |         |
|          | 1      | all    | id-Oct |         |         | SA      |
|          | &2=LRC | year   |        | V/T=4/8 | SA      | CANT=22 |
|          |        |        | Batts  |         | CANT=37 |         |
|          | Batt   | Sun    | 1-3=   | SA      | degs    | BVR     |
|          | 1&2    | angle  | LRC    | CANT=22 |         | Phase   |
|          | V/T=4  | at 58  |        | degs    |         | Control |
|          |        | steady | V      |         |         | aut     |
|          | Shunt  | trend  | /T=7/9 |         |         | onomous |
|          | de     |        |        |         |         | swap    |
|          | graded | Batts  | SA     |         |         | 3/      |
|          |        | 1-3=   | C      |         |         | 29=TOAR |
|          | SA     | LRC    | ANT=37 |         |         | 457     |
|          | C      |        | degs   |         |         |         |
|          | ANT=37 | De     |        |         |         |         |
|          | degs   | graded |        |         |         |         |
|          |        | shunts |        |         |         |         |
|          | PSSS   |        |        |         |         |         |
|          | t      | SA     |        |         |         |         |
|          | rigger | C      |        |         |         |         |
|          | =18.5  | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | N      | N      | Nominal | ###     | Nominal |
| *AVHRR** | ominal | ominal | ominal |         | Nominal |         |
|          |        |        |        | since   |         | Channel |
|          |        | Since  | C      | mid Oct | 3A-B    | 3B only |
|          |        | 18 Feb | hannel | 05      | switch  |         |
|          |        | 06     | 3B     |         | enabled |         |
|          |        |        | only   | TCE24   |         |         |
|          |        | Occa   |        | OFF     | F       |         |
|          |        | sional | Recent | 4/14/04 | requent |         |
|          |        | scan   | minor  |         | scan    |         |
|          |        | motor  | scan   | Channel | motor   |         |
|          |        | c      | motor  | 3B only | current |         |
|          |        | urrent | i      |         | min     |         |
|          |        | surge  | nstabi |         | isurges |         |
|          |        |        | lities |         |         |         |
|          |        | 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 |         |         |         |
|          |        |        | Chan-3 |         |         |         |
|          |        |        | since  |         |         |         |
|          |        |        | 4      |         |         |         |
|          |        |        | /30/05 |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ### HIRS | O      | N      | N      | Oper    | NOMINAL | ######  |
|          | N/Inop | OMINAL | OMINAL | ational |         | ## Oper |
|          |        |        |        |         | 1 Pixel | ational |
|          | Turned | Opera  | FW     | Imagery | cross   |         |
|          | On     | tional | Abrupt | high    | track   | LW      |
|          | 4      |        | return | levels  | misali  | Chans   |
|          | /30/05 | Occa   | to     | radi    | gnment. | d       |
|          |        | sional | n      | ometric |         | egraded |
|          | for    | loss   | ominal | noise   |         | 25 June |
|          | power  | of     | 7      |         |         |         |
|          | b      | Fwheel | /12/05 | TOAR    |         | ####### |
|          | alance | synch  |        | 441     |         | # LW ch |
|          |        |        | After  | CLOSED  |         | annel 1 |
|          | Filter |        | years  |         |         | -12 noi |
|          | Wheel  |        | of     | Recent  |         | se TOAR |
|          | OFF    |        | minor  | mo      |         |  448 Lo |
|          |        |        | and    | mentary |         | ose LWI |
|          |        |        | major  | FW      |         | R lens. |
|          |        |        | c      | synch   |         |         |
|          |        |        | urrent | d       |         | Incons  |
|          |        |        | surges | ropouts |         | istent, |
|          |        |        |        |         |         | LW      |
|          |        |        | FW     | Occ     |         | often   |
|          |        |        | m      | asional |         | e       |
|          |        |        | ode=Hi | major   |         | rratic. |
|          |        |        | Powr   | FM      |         |         |
|          |        |        |        | surges, |         |         |
|          |        |        |        | most    |         |         |
|          |        |        |        | recent  |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | 12/9/04 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | Nominal |
|  MHS/MIU |        |        |        |         |         |         |
|          |        |        |        |         |         | F       |
|          |        |        |        |         |         | lywheel |
|          |        |        |        |         |         | current |
|          |        |        |        |         |         | i       |
|          |        |        |        |         |         | ncrease |
|          |        |        |        |         |         | 23 Jun  |
|          |        |        |        |         |         | big     |
|          |        |        |        |         |         | surge   |
|          |        |        |        |         |         | 25 Jun, |
|          |        |        |        |         |         | 8 Jul   |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | and     |
|          |        |        |        |         |         | again   |
|          |        |        |        |         |         | on 17   |
|          |        |        |        |         |         | Jul     |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | Space   |
|          |        |        |        |         |         | View=0  |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | Rare    |
|          |        |        |        |         |         | Turbo   |
|          |        |        |        |         |         | an      |
|          |        |        |        |         |         | omalies |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | over    |
|          |        |        |        |         |         | SAA     |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | OF     | Opera  |        |         |         |         |
|          | F/Inop | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Turned | Scan   |        |         |         |         |
|          | off    | motor  |        |         |         |         |
|          | for    | and    |        |         |         |         |
|          | power  | a      |        |         |         |         |
|          | b      | ntenna |        |         |         |         |
|          | alance | pr     |        |         |         |         |
|          |        | oblems |        |         |         |         |
|          | 6      |        |        |         |         |         |
|          | /23/05 | EOL    |        |         |         |         |
|          |        | test   |        |         |         |         |
|          |        | p      |        |         |         |         |
|          |        | lanned |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SSU**  |        | OFF/N  |        |         |         |         |
|          |        | ominal |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Turned |        |         |         |         |
|          |        | off 5  |        |         |         |         |
|          |        | May    |        |         |         |         |
|          |        | for    |        |         |         |         |
|          |        | power  |        |         |         |         |
|          |        | b      |        |         |         |         |
|          |        | alance |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DCS**  | N      | N      | N      | Nominal | Nominal | Nominal |
|          | ominal | ominal | ominal |         |         |         |
| RFI      |        |        |        | Pseudo  |         | DRU's   |
| inves    |        |        |        | message |         | 1-7 On  |
| tigation |        |        |        | turned  |         |         |
|          |        |        |        | on      |         | DRU8    |
|          |        |        |        | 1/5/06  |         | i       |
|          |        |        |        |         |         | nop/off |
+----------+--------+--------+--------+---------+---------+---------+
| **SARR** |        | N      | Opera  | Oper    | Nominal | Nominal |
|          |        | ominal | tional | ational |         |         |
|          |        |        |        |         | A-side  | A-Side  |
|          |        | All    | A      | Mode    |         |         |
|          |        | time   | -Side, | =AA     | All AGC | All AGC |
|          |        | high   | AGC    |         | Mode    | Mode    |
|          |        | com    | Mode   | A-side, |         |         |
|          |        | ponent |        | AGC     |         | Since   |
|          |        | temps  | 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      |
|          |        | ailure | B/W =  |         |         | May05   |
|          |        |        | 2      |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SEM**  | ON/N   | Opera  | N      | Nominal | Nominal | Nominal |
|          | ominal | tional | ominal |         |         |         |
|          |        |        |        | E-CDEM  | E-CDEM  | Elec-CH |
|          | Auto   | El     | E      | -HVPS=6 | -HVPS=2 | -HVPS=1 |
|          | nomous | ec-CH- | -CDEM- |         |         |         |
|          | reset  | HVPS=0 | HVPS=2 | P-CDEM  | P-CDEM  | 27 June |
|          |        |        |        | -HVPS=5 | -HVPS=4 | 17:00z  |
|          | 8 Jun, | Pr     | P      |         |         |         |
|          | back   | ot-CH- | -CDEM- | 27 Jun  | 27 June | Prot-CH |
|          | to     | HVPS=0 | HVPS=0 | 15:30z  | 16:00z  | -HVPS=0 |
|          | n      |        |        |         |         |         |
|          | ominal | 1 of 4 |        |         |         |         |
|          | 10     | T      |        |         |         |         |
|          | June   | scopes |        |         |         |         |
|          |        | inop   |        |         |         |         |
|          | Turned |        |        |         |         |         |
|          | on     |        |        |         |         |         |
|          | 8      |        |        |         |         |         |
|          | /30/04 |        |        |         |         |         |
|          |        |        |        |         |         |         |
|          | El     |        |        |         |         |         |
|          | ec-CH- |        |        |         |         |         |
|          | HVPS=4 |        |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Pr     |        |        |         |         |         |
|          | ot-CH- |        |        |         |         |         |
|          | HVPS=0 |        |        |         |         |         |
|          |        |        |        |         |         |         |
|          | TED    |        |        |         |         |         |
|          | l      |        |        |         |         |         |
|          | evel=3 |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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       | Elec    |
|          |        | (giant |        | iffuser | tandard | tronics |
|          |        | step)  |        | inop    | Ops     | turnoff |
|          |        | ops    |        |         |         | taken   |
|          |        | sus    |        | Primary |         | out of  |
|          |        | pended |        | D       |         | STESM   |
|          |        | 1      |        | iffuser |         | sa      |
|          |        | 2/2/03 |        | dep     |         | festate |
|          |        |        |        | loyment |         | table   |
|          |        | 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      | 4/14/05 | ON,     | TCE3H   |
|          | to     |        | nvalid |         | turned  | dis     |
| TCE's    | n      |        |        | (AVHRR  | off     | playing |
|          | ominal |        | TOAR   | H&L)    | 8/26/03 | invalid |
|          | c      |        | 432    |         |         | r       |
|          | onfigu |        |        | HIRS    | AMSU-A1 | eadings |
|          | ration |        | TCE2   | Filter  | s       |         |
|          | fol    |        | 4L&25L | heater  | urvival | TOAR    |
|          | lowing |        | (HIRS  | turned  | heaters | 458     |
|          | 7      |        | &      | OFF     | on      |         |
|          | /25/04 |        | AVHRR) | 1/18/05 | 1       | su      |
|          | U      |        | failed |         | 0/29/03 | bmitted |
|          | Vtrip. |        | 5      |         |         |         |
|          |        |        | /13/98 |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | RCE    |         |         |         |
|          |        |        | ther   |         |         |         |
|          |        |        | mostat |         |         |         |
|          |        |        | failed |         |         |         |
|          |        |        | 5      |         |         |         |
|          |        |        | /13/98 |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Spac   |         |         |         |
|          |        |        | ecraft |         |         |         |
|          |        |        | t      |         |         |         |
|          |        |        | hermal |         |         |         |
|          |        |        | in     |         |         |         |
|          |        |        | u      |         |         |         |
|          |        |        | ptrend |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N18 |
|          | *N12** | *N14** | *N15** |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12: N12 power balance remained stable and nominal during the past
week as the N12 eclipse season continued waning

(illustration 1). The solar array offset configuration of -60 degrees
will have to be re-considered by mid-August at the latest because of the
risk of autonomous switching to YGC attitude control mode that may
result once the sun angle on the spacecraft falls below 20 degs
(predicted for 3 Sept).

NOAA-14: The TIP on N14 was swapped (to side-2 from side-1) on 19 July
in order to determine the true value of the nitrogen

low Pressure on account of TIP side-1 drift.

NOAA-15: The N15 payload suite was nominal and stable through out the
past week (illustration 7) while continuing their thermal

uptrend's. The N15 power subsystem also performed nominally as its
eclipse season continued to wind down (illustration 8). Engineers
anticipate that the season should be completely over during the first
week of August with no reconfigurations recommended in response. The
ADACS was also generally nominal during the past week notwithstanding
some minor perturbations (i.e. a large yaw update of .29 on 19 July)
that generally returned to nominal.

In addition, the Z-wheel completed its transition from a positive speed
bias to one that is again all negative again) on 22 July. At this time,
it appears that it has reached equilibrium between -500 and -800 RPM.
The reason for the transition shifts remains unknown but now that the
wheel no longer passes through 0 RPM, attitude precision, especially
along the Z-axis, should be improved (illustrations 9 and 10).

On 21 July the VTX (APT data) RF conflict between N12 and N15 ended at
which time the N15 VTX-1 transmitter was again commanded on. Since that
time the system has been performing nominally (illustration 11).

NOAA-16: The N16 payload suite was relatively nominal and stable during
the past week (illustration 12 and 13). Conversely, the

only operational gyro remaining on N16 (gyro-2) showed some minor
instabilities last week including a spin motor current jump that was the
4^th^ highest value observed since gyro-1 failed last October. This
increase however was very short lived and the value has sustained itself
within its nominal range for the past 4-5 days. Otherwise the ADACS
subsystem performed in a stable and nominal manner (illustrations 14 and
15).

NOAA-17: The N17 AMSU's (A2 and B) were nominal during the past week
while the HIRS filter motor and AVHRR scan motor were relatively
unchanged from previous weeks (i.e. nominal but slightly less stable
than desired. See illustrations 16 and 17). The N17 ADACS was generally
nominal last week as well (illustration 18) although the gyro-1 spin
motor current did register a small drop in its equilibrium value during
the past several days, a drop that coincided with an

increase in IMU TCA voltage (illustration 19.) This situation is not
considered cause for concern except for the generic concerns regarding
all KLM gyros.

Discussions continue regarding a TIP swap on N17 some time before the
end of summer. N17 TIP drift has been substantial and is now at a level
reached by both N15 and N16 at the time of their own TIP swaps.

NOAA-18: The N18 AVHRR and AMSU's were nominal and stable last week
(illustration 20) while the HIRS was basically unchanged from previous
weeks with nominal hardware performance and degraded long wave channel
quality (illustration 21). The MHS flywheel continued to show less than
optimum performance although a large current surge of the type seen in
the past several weeks was not specifically observed (although such an
event might have occurred but was "masked" by ABE noise.) The N18 ADACS
was nominal and stable last week with some minor perturbations observed
during periods of sun-moon incursions on the earth sensor (illustrations
22 and 23).

On 20 July, enginees oversaw the switch of N18's APT channel back to #2
(137.9125 MHz, from #1 137.1 MHz). Since that time the transmitter has
been performing nominally (illustration 24).

NOTES: Illustrations 1-6, 8-10, 15-16, 18-19, 22-24 have been omitted
for web hosting.

![](media/image1.png){width="7.916666666666667in"
height="6.083333333333333in"}

Illustration 7: N15 Payloads Analysis

(Generally nominal and stable last week.)

![](media/image2.png){width="7.916666666666667in"
height="6.083333333333333in"}

**ILLUSTRATION 11: N15 VTX Analysis**

(RF conflict with N12 is over, VTX-APT data again nominally transmitting
from N15.)

![](media/image3.png){width="7.916666666666667in" height="6.0in"}

HIRS AVHRR

**ILLUSTRATION 12: N16 AVHRR & HIRS Health Analysis**

(Nominal and stable last week.)

![](media/image4.png){width="7.916666666666667in"
height="6.083333333333333in"}

**ILLUSTRATION 13: N16 AMSU's Health Analysis**

(Nominal and stable last week.)

![](media/image5.png){width="7.916666666666667in"
height="6.083333333333333in"}

**HIRS AVHRR**

**ILLUSTRATION 16: N17 AVHRR & HIRS Health Analysis**

(Generally nominal and stable last week although AVHRR mini surges
continue \[lower right plot\].)

![](media/image6.png){width="7.916666666666667in" height="6.0in"}

**ILLUSTRATION 17: N17 AMSU's Health Analysis**

(Generally nominal and stable last week. AMSU-A1 is non-operational.)

![](media/image7.png){width="7.916666666666667in"
height="6.083333333333333in"}

**ILLUSTRATION 20: N18 Primary Payload Analysis**

(Nominal and stable last week.)

![](media/image8.png){width="7.916666666666667in"
height="6.083333333333333in"}

**ILLUSTRATION 21: N18 HIRS & MHS Health Analysis**

(HIRS continues to experience nominal hardware performance and less than
nominal long wave channel quality \[upper left plot. The MHS flywheel
continues to show historically less stable behavior \[lower right plot\]
while ABE spikes continue to make analysis more difficult for
Engineers.)