**POLAR Spacecraft Status As of: Tues 19 Dec 06, 16:00 EST**

(changes from last week in bold border)

+----------+--------+--------+--------+---------+---------+---------+
| **Subs   | **NOAA | **NOAA | **NOAA | **NOA   | ##### N | ##### N |
| ystem/** | -12D** | -14J** | -15K** | A-16L** | OAA-17M | OAA-18N |
|          |        |        |        |         |         |         |
| **Com    | AM     | AM:    | AM:    | PM:     | AM:     | PM      |
| ponent** | 16     | 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    |
|          |        |        |        |         |         |         |
|          | No IPD | No IPD |        |         |         |         |
|          | proc   | proc   |        |         |         |         |
|          | essing | essing |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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 |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Rec    |        |         |         |         |
|          |        | ursive |        |         |         |         |
|          |        | SCT    |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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     | [YGC   | [N     | ###     | #####   | [       |
| *ADACS** | ominal | Mode]  | ominal | ### [RG | # [Nomi | Nominal |
|          | Mode]  | {.unde | Mode]  | YRO Mod | nal Mod | Mod     |
|          | {.unde | rline} | {.unde | e]{.und | e]{.und | e]{.und |
|          | rline} |        | rline} | erline} | erline} | erline} |
|          |        | Auto   |        |         |         |         |
|          | Auto   | nomous | Rg     | E       | Rgmode= | Gyro-A  |
|          | nomous | swap 1 | mode=M | stimate | Monitor | MIMU-2  |
|          | swap   | Dec    | onitor | Y-ROLL  |         |         |
|          | to YGC | Return |        |         | Gyro-3  | Z-wheel |
|          | 30     | to     | Gyro-3 | Rgmode= | Off     | -Pitch  |
|          | Aug,   | n      | Off    | PASSIVE | 6/10/04 |         |
|          | com    | ominal | 6      |         |         | TOAR    |
|          | manded | TDB    | /26/00 | Gyros-1 | Gyro    | 447     |
|          | back   |        | Gyro   | & 3     | ch      |         |
|          | to     | Very   | cha    | I       | ans=AAB | Z-m     |
|          | n      | low N2 | ns=AAB | nop/Off | GAS     | omentum |
|          | ominal | gas    |        |         | Enabled | tra     |
|          | 31 Aug |        | N2 Low | Gyro    | Dec 05  | nsition |
|          |        |        | PSI    | chans   |         | c       |
|          | RG     |        | i      | XA-ZB   |         | omplete |
|          | mode=M |        | nvalid |         |         |         |
|          | onitor |        |        | Gyro2   |         | Pitch   |
|          |        |        |        | safe    |         | Torquer |
|          | Gyro   |        |        | macro   |         | again   |
|          | cha    |        |        |         |         | active  |
|          | ns=XYZ |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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      | Macro  | ephase | Rephase | Rephase | Rephase |
|          | ephase | re     | 0730   | each    | Enabled | Enabled |
|          | E      | phased | daily  | orbit   |         |         |
|          | nabled | once   |        |         |         |         |
|          |        | per    |        |         |         |         |
|          |        | orbit  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **TIP    | 1      | 2      | 2      | 2       | 2       | 1       |
| SIDE**   |        |        |        |         |         |         |
|          |        | Since  | (since | since   | Swapped | Analog  |
|          |        | 19 Jul | 4      | 4/18/05 | 9/20/06 | telem   |
|          |        | 06     | /3/03) |         |         | d       |
|          |        |        |        | (analog |         | rifting |
|          |        |        | 3      | dri     |         |         |
|          |        |        | ch     | fting?) |         |         |
|          |        |        | 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  | Safes   |
|          | estate | 1B     | 1B EOT | festate | ate=SSR | tate=5B |
|          | 5B     |        |        | 3A      | 2B      |         |
|          |        |        |        |         |         | Current |
|          | 4b low |        |        | 4B STIP | 4A      | spikes  |
|          | pr     |        |        | only    | P       |         |
|          | essure |        |        |         | ressure |         |
|          |        |        |        |         | leak    |         |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | #1 ON  | OFF /   | #2 ON   | #2 ON   |
|          |        | (no    |        | INOP    |         |         |
| (APT     | 137.50 | minal) | As of  |         | 137.62  | 1       |
| data)    | MHZ    |        | 13 Nov | since   | MHZ     | 37.9125 |
|          |        | Since  |        | 1       |         | MHZ     |
|          |        | 8/2/05 |        | 1/15/00 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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      |        |        | TOAR   | P       | P       | layback |
|          |        |        | 446    | layback | layback |         |
| 3= rcp   |        |        |        |         |         | 4-Test  |
| 1707.0   |        |        | 4-Pl   | & MCM   | 1-      | &       |
| mhz      |        |        | ayback | usage   | Standby | Standby |
|          |        |        |        |         |         |         |
| 4= rcp   |        |        | 1,     | 3 low   | STX-1   |         |
| 2247.5   |        |        | 2,3-De | power   | Power   |         |
| mhz      |        |        | graded | unused  | drop    |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [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 & | 8/     | 22     | 1/     | 7/16/]  | 1/29/0  | 6/6/0   |
| V/T      | 31/06] | 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  | Full   | E      | Full   | all     | all     | all     |
| angle)   | Sun    | clipse | Sun    | year    | year    | year    |
|          |        | all    |        |         |         |         |
|          | Sun    | year   | Sun    | Sun     | Sun     | Sun     |
|          | Angle  |        | Angle  | Angle   | Angle   | Angle   |
|          | 16     | Batts  | 13     | 34      | at 66   | 63      |
|          | u      | 1&3    |        |         |         | uptrend |
|          | ptrend | VT=6/9 | U      | Steady  | Steady  | to 65   |
|          | to 20  |        | ptrend | trend   | trend   | on      |
|          | in     | Batt 2 | to 18  |         |         |         |
|          | early  | VT=7/9 | early  | Batts   | Batts   | 1 Jan   |
|          | Jan 07 |        | Jan 07 | 1-3=    | 1-3=    | 07      |
|          |        | Sun    |        | LRC     | LRC     |         |
|          | Batts  | angle  | Batts  |         |         | Batts   |
|          | 1      | 55     | 1-3=   | V/T=4/8 | V/T=    | 1-3=LRC |
|          | &2=LRC | steady | LRC    |         | 4/8     |         |
|          |        |        |        | SA      |         | Batts   |
|          | Batt   | Batts  | V      | CANT=22 | SA      | 1-3     |
|          | 1&2    | 1-3    | /T=7/9 | degs    | CANT=37 | V/T=4/8 |
|          | V/T=4  | LRC    |        |         | degs    |         |
|          |        |        | SA     | Transi  |         | SA      |
|          | Shunt  | De     | C      | tioning |         | CANT=22 |
|          | de     | graded | ANT=37 | to full |         |         |
|          | graded | shunts | degs   | sun S/C |         | BVR     |
|          |        |        |        | in Sept |         | Phase   |
|          | SA     | SA     |        | 07      |         | Control |
|          | C      | C      |        |         |         | auton   |
|          | ANT=37 | ANT=22 |        |         |         | swap    |
|          | degs   | degs   |        |         |         | 3/29/06 |
|          |        |        |        |         |         |         |
|          | PSSS   | PSS    |        |         |         |         |
|          | t      | macro  |        |         |         |         |
|          | rigger | to     |        |         |         |         |
|          | =18.5  | safe   |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SAD    |        |         |         |         |
|          |        | Motor  |        |         |         |         |
|          |        | swi    |        |         |         |         |
|          |        | tching |        |         |         |         |
|          |        | e      |        |         |         |         |
|          |        | nabled |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SAD    |        |         |         |         |
|          |        | side   |        |         |         |         |
|          |        | =A     |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | N      | N      | Nominal | ###     | Nominal |
| *AVHRR** | ominal | ominal | ominal |         | Nominal |         |
|          |        |        |        | Recent  |         | Channel |
|          | HRPT   | HRPT   | C      | SM      | 3A-B    | 3B only |
|          | and    | data   | hannel | current | switch  |         |
|          | APT    | only   | 3B     | in      | enabled | Scan    |
|          | data   | Auto   | only   | creases |         | motor   |
|          | only   | nomous |        |         | P       | current |
|          |        | T/off  | Occa   | TCE24   | revious | drop 29 |
|          |        | 9/28   | sional | OFF     | scan    | Aug 06  |
|          |        | back   | minor  | 4/14/04 | motor   |         |
|          |        | on     | scan   |         | current |         |
|          |        | 9/30   | motor  | Channel | mini    |         |
|          |        |        | i      | 3B only | surges  |         |
|          |        | Occa   | nstabi |         |         |         |
|          |        | sional | lities |         |         |         |
|          |        | SM     |        |         |         |         |
|          |        | c      |        |         |         |         |
|          |        | urrent |        |         |         |         |
|          |        | s      |        |         |         |         |
|          |        | pikes. |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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 |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | Opera  | Oper    | Nominal | ***R    |
| AMSU-B** |        |        | tional | ational |         | eplaced |
|          |        |        |        |         |         | by      |
|          |        |        | Bias   | Space   |         | MHS***  |
|          |        |        | in All | Pos     |         |         |
|          |        |        | Chans. | ition-3 |         |         |
|          |        |        |        |         |         |         |
|          |        |        | De     | Chan-8  |         |         |
|          |        |        | graded | degr    |         |         |
|          |        |        | Chan-3 | adation |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ### HIRS | O      | N      | N      | NOMINAL | NOMINAL | ####### |
|          | N/Inop | OMINAL | OMINAL |         |         | # Opera |
|          |        |        |        | New all | 1 Pixel | tional  |
|          | Turned | IPD no | FW     | time    | cross   |         |
|          | On     | longer | Abrupt | high    | track   | Filter  |
|          | 4      | proc   | return | filter  | misali  | Heat    |
|          | /30/05 | essing | to     | motor   | gnment. | OFF.    |
|          |        | data   | n      | current |         |         |
|          | for    |        | ominal | reached |         | ####### |
|          | power  | Outgas | 7      | 9       |         | # LW ch |
|          | b      | heater | /12/05 | /17/06. |         | annel 1 |
|          | alance | turned |        |         |         | -12 noi |
|          |        | ON 13  | After  | Imagery |         | se TOAR |
|          | Filter | Nov    | years  | occas   |         |  448 Lo |
|          | Wheel  | 14:00z | of     | ionally |         | ose LWI |
|          | OFF    | turned | minor  | e       |         | R lens. |
|          |        | OFF 14 | and    | xhibits |         |         |
|          |        | Nov    | major  | high    |         | LW      |
|          |        | 14:00z | c      | levels  |         | imagery |
|          |        |        | urrent | of      |         | e       |
|          |        |        | surges | radi    |         | rratic. |
|          |        |        |        | ometric |         |         |
|          |        |        | FW     | noise   |         |         |
|          |        |        | m      |         |         |         |
|          |        |        | ode=Hi |         |         |         |
|          |        |        | Powr   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | Nominal |
|  MHS/MIU |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | OF     | Opera  |        |         |         |         |
|          | F/Inop | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Turn   | AMDAHL |        |         |         |         |
|          | on     | P      |        |         |         |         |
|          | 1      | rocess |        |         |         |         |
|          | 2/7/06 | sh     |        |         |         |         |
|          | 16:53  | utdown |        |         |         |         |
|          | for    | perma  |        |         |         |         |
|          | power  | nently |        |         |         |         |
|          | b      | 10 Oct |        |         |         |         |
|          | alance |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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    |        | Auto   |        | message |         | 1-7 On  |
| tigation |        | nomous |        | turned  |         |         |
|          |        | t      |        | on      |         | DRU8    |
|          |        | urnoff |        | 1/5/06  |         | i       |
|          |        | 28     |        |         |         | nop/off |
|          |        | Sept   |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Auto   |        |         |         |         |
|          |        | nomous |        |         |         |         |
|          |        | turnon |        |         |         |         |
|          |        | on 30  |        |         |         |         |
|          |        | Sept   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SARR** |        | N      | Opera  | Oper    | Nominal | Nominal |
|          |        | ominal | tional | ational |         |         |
|          |        |        |        |         | A-side  | A-Side  |
|          |        | Auto   | A      | Mode    |         |         |
|          |        | nomous | -Side, | =AA     | All AGC | All AGC |
|          |        | t      | AGC    |         | Mode    | Mode    |
|          |        | urnoff | Mode   | A-side, |         |         |
|          |        | 28     |        | AGC     |         | Since   |
|          |        | Sept   | Interm | Mode    |         | 15 Aug  |
|          |        |        | ittent |         |         | 05      |
|          |        | Com    | fa     | (B-side |         |         |
|          |        | manded | ilures | in FG   |         |         |
|          |        | back   | for    | mode)   |         |         |
|          |        | on 29  | 243MHz |         |         |         |
|          |        | Sept   | 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     | Auto   |        |         |         |         |
|          | 8      | nomous |        |         |         |         |
|          | /30/04 | Rec    |        |         |         |         |
|          |        | ursive |        |         |         |         |
|          | El     | SCT=no |        |         |         |         |
|          | ec-CH- | IFC    |        |         |         |         |
|          | HVPS=4 | capa   |        |         |         |         |
|          |        | bility |        |         |         |         |
|          | Pr     |        |        |         |         |         |
|          | ot-CH- |        |        |         |         |         |
|          | HVPS=0 |        |        |         |         |         |
|          |        |        |        |         |         |         |
|          | TED    |        |        |         |         |         |
|          | l      |        |        |         |         |         |
|          | evel=3 |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SBUV** |        | ON     |        | Oper    | Nominal | Nominal |
|          |        |        |        | ational |         |         |
|          |        | No     |        |         | Anode   | Anode   |
|          |        | longer |        | D       | Mode    | mode    |
|          |        | operat |        | egraded |         |         |
|          |        | ional. |        | Ozone   | Plan    | since 6 |
|          |        | Used   |        | data    | sweep   | July    |
|          |        | for    |        |         | mode    | 13:30z  |
|          |        | power  |        | Backup  |         |         |
|          |        | b      |        | D       | S       | Elec    |
|          |        | alance |        | iffuser | tandard | tronics |
|          |        | only   |        | inop    | Ops     | turnoff |
|          |        | since  |        |         |         | taken   |
|          |        |        |        | Primary | TOAR    | out of  |
|          |        | AMDAHL |        | D       | 463 sun | STESM   |
|          |        | P      |        | iffuser | glint   | sa      |
|          |        | rocess |        | dep     |         | festate |
|          |        | sh     |        | loyment | IBSL    | table   |
|          |        | utdown |        | problem | test    |         |
|          |        | 10 Oct |        | TOAR    | pe      | TOAR    |
|          |        | 06     |        | 426     | rformed | 462 sun |
|          |        |        |        |         | 12 Sept | glint   |
|          |        |        |        | AMSU    |         |         |
|          |        |        |        | EMI     | Grating |         |
|          |        |        |        | causing | motor   |         |
|          |        |        |        | erratic | invest  |         |
|          |        |        |        | B       | igation |         |
|          |        |        |        | ehavior |         |         |
|          |        |        |        | in PMT  |         |         |
|          |        |        |        | cathod, |         |         |
|          |        |        |        | range 3 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        |        | 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  | Power  | Telem  | OFF     | failed  |         |
| louvers  | back   | su     | i      | 4/14/05 | ON,     | HIRS    |
|          | to     | rvival | nvalid |         | turned  | filter  |
| TCE's    | n      | saf    |        | (AVHRR  | off     | heater  |
|          | ominal | estate | TOAR   | H&L)    | 8/26/03 | turned  |
|          | c      | macro  | 432    |         |         | OFF     |
|          | onfigu |        |        | HIRS    | AMSU-A1 | 9/28/06 |
|          | ration | Imple  | TCE2   | Filter  | s       |         |
|          | fol    | mented | 4L&25L | heater  | urvival | TCE3H   |
|          | lowing | 28     | (HIRS  | turned  | heaters | dis     |
|          | 7      | Sept.  | &      | OFF     | on      | playing |
|          | /25/04 | Most   | AVHRR) | 1/18/05 | 1       | invalid |
|          | U      | TCE's  | failed |         | 0/29/03 | r       |
|          | Vtrip. | off.   | 5      |         |         | eadings |
|          |        | All    | /13/98 |         |         |         |
|          |        | TCE's  |        |         |         | TOAR    |
|          |        | re-e   | RCE    |         |         | 458     |
|          |        | nabled | ther   |         |         |         |
|          |        | 30     | mostat |         |         | su      |
|          |        | Sept   | failed |         |         | bmitted |
|          |        | 15:30z | 5      |         |         |         |
|          |        |        | /13/98 |         |         |         |
|          |        | HIRS   |        |         |         |         |
|          |        | outgas | Spac   |         |         |         |
|          |        | heater | ecraft |         |         |         |
|          |        | turned | in     |         |         |         |
|          |        | on     | t      |         |         |         |
|          |        | 13Nov, | hermal |         |         |         |
|          |        | off    | u      |         |         |         |
|          |        | 14Nov  | ptrend |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N18 |
|          | *N12** | *N14** | *N15** |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12: EMOSS engineer Carl Gliniak is investigating some recent bus
voltage instabilities on N12. The MSU turn-on for power balance on N-12
has corrected the regulated bus voltage and filtered bus voltage per the
shunt voltage for increased patch current on the solar array for
increasing sun angle.  The MSU was turned on Jday 341 at 16:53.  The
maximum regulated bus voltage has gone from 28.67 to 28.38 volts and the
filtered bus voltage has gone from 28.49 to 28.38 volts for a patch
current of 236.7 to 241.3 mamps all centered around Jday 341.  At this
point SADBIAS will reduce the array offset further.

NOAA-14: N14 was commanded back to nominal mode on 30 Nov at 18:35z with
yaw precision improving markedly as a result.

However, almost exactly 24 hours later, as STX-1 was being turned on,
the spacecraft again autonomously switched into YGC mode (where it
remains today) with yet another degradation of yaw precision resulting.
At the time the switch occurred the NESAAI1 value was being dwelled upon
(1 second dwell) so additional data is now available for the continuing
investigation into this phenomenon. With the main SOCC operational
equipment move currently underway, and no complaints from direct readout
users being received by NOAA, it was determined that N14 will remain in
YGC mode at least for the next couple of weeks. Jim Shepherd is leading
the EMOSS side of this investigation. Plans are still in effect to place
the ESA in high speed dwell mode for 10 seconds before and 10 seconds
after a STX-1 turnon (out of the ground schedule) but the date for this
operation is presently TBD.

Other than the YGC mode operations the remainder of the N14 spacecraft
performed nominally during the past week with the power subsystem
remaining nominal and the AVHRR experiencing no scan motor current
spikes during this entire time period.

NOAA-15: There were relatively no changes to the N15 health situation
during the past week. Illustrations 3 and 4 depicts primary payloads
although the AMSU-B Scan Motor Currents are elevated it is not a cause
for concern based on long term trending of the current. Illustration 5
depicts the ADACS component performance during this time frame.

NOAA-16: There were relatively no changes to the N16 health situation
during the past week. In general, N16 attitude control was nominal
during the past week (illustration 6) although there was a short lived
surge in the gyro-2 spin motor current on 17 Dec which was accompanied
by a change in IMU block temp and TCA voltage (illustration 7). Given
the significant degradation of the N16 ADACS even small performance
changes are a matter of concern. Fortunately, these values quickly
returned back to their more typical performance ranges and it appears to
be an unexplained seasonal effect.

NOAA-17: The N17 payloads generally performed nominally during the past
week (illustrations 8) with a slight decrease in the AVHRR Scan Motor
Current and no new concerns or information has been forthcoming
regarding a possible problem with the N17 SBUV (see previous weeks
report). Otherwise, the N17 ADACS was generally nominal and stable
during the past week (illustrations 9 and 10) except perhaps a one count
increase in gyro-1 spin motor current. Such surges in TCA voltage may be
indicative of a problem within the gyro and concerns with KLM gyro
performance are continual. However, everything returned back to nominal
values and ranges within a short period of time so at the moment there
does not seem to be cause for concern.

NOAA-18: The N18 HIRS remained nominal from an engineering standpoint
but degraded from a long wave imagery user perspective during the past
week (illustration 11). On the other hand, the N18 AVHRR and AMSU's
performed nominally and stably during this same time period. There has
bee no update to the MHS in the last week (illustration 12) since the 8
Dec at 10:55z, several NOAA-18 MHS mnemonics flagged yellow, including
the performance fault code, and the Channel H5 DAC offset showed an
error. Analysis of this payload has been difficult in the past week
because of the excessive number of noise spikes introduced by the ABE
trending system into the engineering data stream.

Otherwise the N18 ADACS performed nominally during the past week
(illustration 13, 14 & 15). Since 29 Nov, the torquer coils have again
begun to activate to unload the Rwheels and preliminary analysis has
determined that they are all performing nominally.

**AVHRR HIRS**

![](media/image1.png){width="8.0in" height="6.166666666666667in"}

**Illustration 3: N15 AVHRR & HIRS Health Analysis**

(Nominal performance \[AVHRR scan motor upper left plot\] during this
continued thermal uptrend.)

![](media/image2.png){width="8.0in" height="6.25in"}

**Illustration 4: N15 AMSU-B Health Analysis**

(AMSU-B was nominal although erratic scan motor currents during this
continued thermal uptrend.)

**AVHRR HIRS**

![](media/image3.png){width="8.0in" height="6.166666666666667in"}

**Illustration 8: N17 AVHRR & HIRS Health Analysis**

(Nominal with a slight reduction in the scan motor current \[AVHRR scan
motor on Jday 345 & 351; lower right plot\] last week. AMSU's A2 and B
\[not depicted this week\] were nominal and stable during this same time
period.)

![](media/image4.png){width="7.625in" height="5.8590277777777775in"}

**Illustration 11: N18 HIRS Health Analysis**

(Generally nominal and stable last week from an engineering perspective
but mostly degraded from a long wave products point of view except for a
slight decrease in the HIRS Dig-A on Jday 352-353 \[lower right plot\].)

![](media/image5.png){width="7.916666666666667in"
height="6.166666666666667in"}

**Illustration 12: N18 MHS Motor Health Analysis**

(Perhaps the worst noise interjection by ABE since N18 launch
significantly reduces the fidelity of these two plots. However, on Jday
343 \[again 353\] it is noticeable that there was an abrupt increase in
the flywheel motor current although the range remains within acceptable
norms.)