**POLAR Spacecraft Status As of: Tues 19 Oct 04 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-N18 |
|          |        |        |        |         |         |         |
| **Com    | AM:A   | AM:A   | AM:A   | PM:     | AM:     | Planned |
| ponent** | N=1646 | N=2006 | N=1822 | AN=1424 | AN=2224 | PM      |
|          |        |        |        |         |         |         |
|          | STIP   | STIP   | GAC    | GAC&LAC | GAC&LAC | Plan    |
|          | data   | data   | data   | data    | data    | A       |
|          | only   | only   | only   |         |         | N=14:00 |
+----------+--------+--------+--------+---------+---------+---------+
| **LA     | 05     | 12     | 05     | 0       | 6/24/02 | #####   |
| UNCHED** | /14/91 | /30/94 | /13/98 | 9/21/00 |         | ## NET  |
|          |        |        |        |         |         | 2/12/05 |
+----------+--------+--------+--------+---------+---------+---------+
| **CNTL   | OBP2   | OBP2   | OBP2   | OBP2    | OBP2    | End to  |
| OBP**    |        |        |        |         |         | End     |
|          |        | OBP1   |        |         |         | test 20 |
|          |        | inope  |        |         |         | Oct     |
|          |        | rative |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS**  | B-BUS  | B-BUS  | B-BUS  | B-BUS   | B-BUS   |         |
|          |        |        |        |         |         |         |
|          | XSU-1  | XSU2   | XSU-1  | XSU-1   | XSU-1   |         |
|          |        | (XSU1  |        |         |         |         |
|          |        | inop)  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO      | NO      |         |
| VETO**   |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | [N     | [N     | [N     | #####   | #####   | New     |
| *ADACS** | ominal | ominal | ominal | # [Nomi | # [Nomi |         |
|          | Mode]  | Mode]  | Mode]  | nal Mod | nal Mod | ring    |
| X=Yaw    | {.unde | {.unde | {.unde | e]{.und | e]{.und | laser   |
|          | rline} | rline} | rline} | erline} | erline} | gyro    |
| Y=Roll   |        |        |        |         |         |         |
|          | RG     | Rgm    | Rg     | Rgmode= | Rgmode= |         |
| Z=Pitch  | mode=M | ode=Di | mode=M | Monitor | Monitor |         |
|          | onitor | sabled | onitor |         |         |         |
|          |        |        |        | Gyro-3  | Gyro-3  |         |
|          | Gyro   | Gyro   | Gyro-3 | Off     | Off     |         |
|          | cha    | cha    | Off    | 6/10/04 | 6/10/04 |         |
|          | ns=XYZ | ns=XYZ | 6      |         |         |         |
|          |        |        | /26/00 | Gyro    | Gyro    |         |
|          |        | SS     | Gyro   | ch      | ch      |         |
|          |        | check  | cha    | ans=AAA | ans=AAB |         |
|          |        | Di     | ns=AAB |         |         |         |
|          |        | sabled |        | Gyro3   | Gyro3   |         |
|          |        | when   | N2 Low | TOAR    | TOAR    |         |
|          |        | mo     | PSI    | 427     | 436     |         |
|          |        | de=YGC | i      |         |         |         |
|          |        |        | nvalid | ESA sun |         |         |
|          |        |        |        | glint   |         |         |
|          |        |        |        | season  |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI     | PRI     |         |
|          |        |        |        |         |         |         |
|          | BU     | BU     | daily  | Daily   | Daily   |         |
|          | random | random | bias   | Bias    | Bias    |         |
|          | e      | e      | -8     | --5.5   | --3     |         |
|          | nables | nables | mSec   | mS      | mSec    |         |
|          |        | daily  |        |         |         |         |
|          | daily  | bia    | +100   | -100 mS |         |         |
|          | bi     | s--7.0 | mS     | 31Au04  |         |         |
|          | as+6.5 | mS     | 31Au04 |         |         |         |
|          | mS     |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **CLOCK  | 2      | 2      | 2      | 2       | 2       |         |
| DIV**    |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **MIRP** | Ex     | Ex     | Ex     | E       | E       |         |
|          | ternal | ternal | ternal | xternal | xternal |         |
|          | Synch  | Synch  | Synch  | Sync    | Sync    |         |
|          |        |        | R      |         |         |         |
|          | R      | R      | ephase | Rephase | Rephase |         |
|          | ephase | ephase | 0730   | each    | Enabled |         |
|          | E      | 0730   | daily  | orbit   |         |         |
|          | nabled | Daily  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **TIP    | 1      | 1      | 2      | 1       | 1       |         |
| SIDE**   |        |        |        |         |         |         |
|          |        |        | (since | Analog  | Analog  |         |
|          |        |        | 4/     | telem   | telem   |         |
|          |        |        | 23/03) | d       | d       |         |
|          |        |        |        | rifting | rifting |         |
|          |        |        | Ch     |         |         |         |
|          |        |        | annels | TOAR    |         |         |
|          |        |        | 224    | 439     |         |         |
|          |        |        | -227   |         |         |         |
|          |        |        | i      |         |         |         |
|          |        |        | nvalid |         |         |         |
|          |        |        | TOAR   |         |         |         |
|          |        |        | 432    |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DTRs** | 3, 4,  | 1, 2B, | 1, 2,  | 1       | 1,2,3,4 | All     |
|          | 5B     | 3A, 5  | 3, 4   | ,2,3,4A |         | solid   |
|          |        | Safe   | Saf    |         | Safes   | state   |
|          | Saf    | state- | estate | Sa      | tate=1B | digital |
|          | estate | 1B     | 1B EOT | festate |         | re      |
|          | 3B     |        |        | 3A      | D       | corders |
|          | since  |        |        |         | TR2-SSR |         |
|          | 9 Jun  |        |        | 4B TOAR |         |         |
|          |        |        |        | 418     | DTR5    |         |
|          |        |        |        |         | TOAR    |         |
|          |        |        |        | (STIP   | 420     |         |
|          |        |        |        | only)   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | OFF    | INOP    | #2 ON   |         |
|          |        |        |        |         |         |         |
| (APT     | 137.50 | Since  | Plan   | OFF     | 137.62  |         |
| data)    | MHZ    | 8      | turnon | since   | MHZ     |         |
|          |        | /14/02 | 10/20t | 1       |         |         |
|          | N15    |        |        | 1/15/00 |         |         |
|          | co     |        | N12    |         |         |         |
|          | nflict |        | co     |         |         |         |
|          | ending |        | nflict |         |         |         |
|          |        |        | ends   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BTX**  | #1     | #2     | #1     | #1      | ###     |         |
|          |        |        |        |         | #### #2 |         |
|          | 136.77 | 137.77 | 137.35 | 137.35  |         |         |
|          | MHZ    | MHZ    | MHZ    | MHZ     | 137.77  |         |
|          |        |        |        |         | MHZ     |         |
+----------+--------+--------+--------+---------+---------+---------+
| **STX**  | 1 --   | 3 --   | 2-Omni | 1 --    | 3 --    |         |
|          | HRPT;  | HRPT   | HRPT   | HRPT;   | HRPT    |         |
| #        |        |        |        |         |         |         |
| 1=1698.0 | 2,3 -  | 2, 1   | 4-Pl   | 2--     | TOAR424 |         |
| mhz      | Pl     | --     | ayback | Pl      | low     |         |
|          | ayback | Pl     |        | ayback; | power   |         |
| #        |        | ayback | 1,     |         |         |         |
| 2=1702.5 |        |        | 2,3-De | 4 --    | 1&2     |         |
| mhz      |        |        | graded | P       | P       |         |
|          |        |        |        | layback | layback |         |
| #        |        |        | #      |         |         |         |
| 3=1707.0 |        |        | #####  | 3 low   | 4 --    |         |
| mhz      |        |        |        | power   | TIP     |         |
|          |        |        |        | unused  |         |         |
| #        |        |        |        |         |         |         |
| 4=2247.5 |        |        |        |         |         |         |
| mhz      |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [Ar    | [Array | [Array | [Array  | [Array  |         |
| ## POWER | rayOff | Off    | Off    | Off     | Off.    |         |
|          | +50]   | -55]   | -45]   | -4      | --4     |         |
| (Array   | {.unde | {.unde | {.unde | 0]{.und | 0]{.und |         |
| offset,  | rline} | rline} | rline} | erline} | erline} |         |
| charge   |        |        |        |         |         |         |
| and      | since  | Since  | Since  | Since   | Since   |         |
| eclipse  | 8      | 8      | 1      | 7/16/02 | 1/29/04 |         |
| states,  | /31/04 | /21/03 | /25/01 | \*      |         |         |
| sun      |        |        |        |         | Eclipse |         |
| angle)   | Full   | E      | Full   | Eclipse | all     |         |
|          | Sun    | clipse | Sun    | all     | year    |         |
| **       |        | all    |        | year    |         |         |
| Sun-Moon | B      | year   | Sun    |         | Sun     |         |
| Eclipse  | attery |        | Angle  | \*      | Angle   |         |
| occurred | UVtrip | Sun    | 9      | SADPOS  | at 68   |         |
| 14 Oct   | 7/25   | Angle  |        | moved   |         |         |
| 04**     |        | at 38  | Start  | to 0    | Steady  |         |
|          | Sun    | steady | u      | deg     | trend   |         |
|          | Angle  | trend  | ptrend | offset  |         |         |
|          | 15     |        | to 15  | 10/14   | Batts   |         |
|          | bo     | Batts  | in     | at      | 1-3=    |         |
|          | ttomed | 1-3=   | m      | 02:15.  | LRC     |         |
|          | out    | LRC    | id-Dec | Cmd     |         |         |
|          |        |        |        | back to | V/T=    |         |
|          | Batts  | Batts  | Batts  |         | 4/8     |         |
|          | 1      | 1&3V/  | 1-3=   | -40 deg |         |         |
|          | &2=LRC | T=8/11 | LRC    | at      | SA      |         |
|          |        |        |        | 07:45   | CANT=37 |         |
|          | V/T=4  | Batt2  | V      |         | degs    |         |
|          | (      | V      | /T=7/9 | Sun     |         |         |
|          | 26Jul) | T=9/11 |        | Angle   |         |         |
|          |        | )      | SA     | 49      |         |         |
|          | Shunt  |        | C      |         |         |         |
|          | de     | Shunt  | ANT=37 | B       |         |         |
|          | graded | De     | degs   | ottomed |         |         |
|          |        | graded |        | out     |         |         |
|          | SA     |        |        |         |         |         |
|          | C      | SA     |        | Steady  |         |         |
|          | ANT=37 | C      |        | trend   |         |         |
|          | degs   | ANT=37 |        |         |         |         |
|          |        | degs   |        | Batts   |         |         |
|          |        |        |        | 1-3=    |         |         |
|          |        |        |        | LRC     |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | V/T=4/8 |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | SA      |         |         |
|          |        |        |        | CANT=22 |         |         |
|          |        |        |        | degs    |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | INOP   | N      | NOMINAL | ###     | New     |
| *AVHRR** | ominal |        | ominal |         | Nominal | br      |
|          |        | Scan   |        | No bar  |         | ushless |
|          | Turned | motor  | Rare   | code or | 3A-B    | scan    |
|          | backon | s      | major  | wave    | switch  | motors  |
|          | 7/28   | talled | scan   | pa      | enabled |         |
|          | C      |        | motor  | tterns. |         |         |
|          | han-2A | 14 Apr | s      | Scan    | Scan    |         |
|          | on     | 04     | urges. | motor   | Motor   |         |
|          | 8/3/04 |        | Last   | occas   | on      |         |
|          |        |        |        | ionally | watch   |         |
|          |        |        | In     | erratic | list    |         |
|          |        |        | cident |         |         |         |
|          |        |        | 8/9/03 | TCE24   |         |         |
|          |        |        |        | OFF     |         |         |
|          |        |        |        | 4/14    |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Chan 3B |         |         |
|          |        |        |        | only.   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | Opera  | Oper    | O       |         |
| MSU-A1** |        |        | tional | ational | FF/INOP |         |
|          |        |        |        |         |         |         |
|          |        |        | Ch14   | TOAR    | Since   |         |
|          |        |        | inope  | 415 on  | 1       |         |
|          |        |        | rative | primary | 0/30/03 |         |
|          |        |        |        | PLLO    |         |         |
|          |        |        | Ch11   | chans   | Ino     |         |
|          |        |        | inope  | 9-14    | perable |         |
|          |        |        | rative | bias    | Red in  |         |
|          |        |        |        | shift.  | status. |         |
|          |        |        |        |         | S       |         |
|          |        |        |        | TOAR    | urvival |         |
|          |        |        |        | 417 on  | heat    |         |
|          |        |        |        | Backup  | on.     |         |
|          |        |        |        | PLLO    |         |         |
|          |        |        |        | inop    |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | N      | Nominal | Nominal |         |
| MSU-A2** |        |        | ominal |         |         |         |
|          |        |        |        | Space   |         |         |
|          |        |        |        | Pos     |         |         |
|          |        |        |        | ition-2 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | Opera  | Oper    | Nominal |         |
| AMSU-B** |        |        | tional | ational |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Bias   | Space   |         |         |
|          |        |        | in All | Pos     |         |         |
|          |        |        | Chans. | ition-3 |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Motor  | IPD     |         |         |
|          |        |        | surges | reports |         |         |
|          |        |        | ,most  | channel |         |         |
|          |        |        | recent | 8       |         |         |
|          |        |        | 8      | degr    |         |         |
|          |        |        | /26/04 | adation |         |         |
|          |        |        |        |         |         |         |
|          |        |        | IPD    |         |         |         |
|          |        |        | R      |         |         |         |
|          |        |        | eports |         |         |         |
|          |        |        | of     |         |         |         |
|          |        |        | de     |         |         |         |
|          |        |        | graded |         |         |         |
|          |        |        | data   |         |         |         |
|          |        |        | on     |         |         |         |
|          |        |        | Chan-3 |         |         |         |
|          |        |        | since  |         |         |         |
|          |        |        | 4/30   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ### HIRS | ON /   | N      | VA     | Oper    | NOMINAL | ##      |
|          | INOP   | OMINAL | RIABLE | ational |         | ######  |
|          |        |        |        |         | 1 Pixel |         |
|          | Turned | Opera  | FW     | Occ     | cross   |         |
|          | on     | tional | m      | asional | track   |         |
|          | 8      |        | ode=Hi | major   | misal   |         |
|          | /30/04 | Occa   | Powr   | FM      | ignment |         |
|          |        | sional |        | surges, | .       |         |
|          | For    | loss   | FW     | most    |         |         |
|          | power  | of     | Heater | recent  |         |         |
|          | b      | Fwheel | OFF    |         |         |         |
|          | alance | synch  |        | 4/29/04 |         |         |
|          |        |        | Fr     |         |         |         |
|          | Filter |        | equent | IPD     |         |         |
|          | Wheel  |        | Filter | Reports |         |         |
|          | turned |        | Motor  | of      |         |         |
|          | OFF    |        | c      | excess  |         |         |
|          | 10/    |        | urrent | noise   |         |         |
|          | 17/02. |        | "mini" | in      |         |         |
|          |        |        | surges | space   |         |         |
|          |        |        |        | view    |         |         |
|          |        |        | Occa   | c       |         |         |
|          |        |        | sional | hannels |         |         |
|          |        |        | major  | 21May04 |         |         |
|          |        |        | FM     |         |         |         |
|          |        |        | c      | Patch   |         |         |
|          |        |        | urrent | Power   |         |         |
|          |        |        | s      | invest  |         |         |
|          |        |        | urges, | igation |         |         |
|          |        |        | most   |         |         |         |
|          |        |        | recent |         |         |         |
|          |        |        | 6/3/04 |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | #####   |
|  MHS/MIU |        |        |        |         |         | ### Int |
|          |        |        |        |         |         | egrated |
|          |        |        |        |         |         |  on spa |
|          |        |        |        |         |         | cecraft |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | R       |
|          |        |        |        |         |         | eplaces |
|          |        |        |        |         |         | AMSUB   |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | ON /   | Opera  |        |         |         |         |
|          | INOP   | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Turned | Scan   |        |         |         |         |
|          | on     | motor  |        |         |         |         |
|          | 8      | and    |        |         |         |         |
|          | /30/04 | a      |        |         |         |         |
|          |        | ntenna |        |         |         |         |
|          | For    | pr     |        |         |         |         |
|          | power  | oblems |        |         |         |         |
|          | b      |        |        |         |         |         |
|          | alance |        |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Scan   |        |        |         |         |         |
|          | Motor  |        |        |         |         |         |
|          | OFF    |        |        |         |         |         |
|          | since  |        |        |         |         |         |
|          | 3      |        |        |         |         |         |
|          | /12/03 |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SSU**  |        | N      |        |         |         |         |
|          |        | ominal |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DCS**  | N      | N      | N      | Nominal | Nominal |         |
|          | ominal | ominal | ominal |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SARR** |        | N      | Opera  | Oper    | Nominal |         |
|          |        | ominal | tional | ational |         |         |
|          |        |        |        |         | A-side  |         |
|          |        |        | A      | A-side, |         |         |
|          |        |        | -Side, | AGC     | All AGC |         |
|          |        |        | AGC    | Mode    | Mode    |         |
|          |        |        | Mode   |         |         |         |
|          |        |        |        | (B-side |         |         |
|          |        |        | Interm | in FG   |         |         |
|          |        |        | ittent | mode)   |         |         |
|          |        |        | fa     |         |         |         |
|          |        |        | ilures | 243 MhZ |         |         |
|          |        |        | for    | = INOP. |         |         |
|          |        |        | 243MHz |         |         |         |
|          |        |        | A&B    |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SARP** |        | OFF    | N      | Nominal | Nominal |         |
|          |        |        | ominal |         |         |         |
|          |        | Power  |        | RCVR    |         |         |
|          |        | F      | RCVR   | B/W = 2 |         |         |
|          |        | ailure | B/W =  |         |         |         |
|          |        |        | 2      |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SEM**  | ON/N   | Opera  | N      | Nominal | Nominal |         |
|          | ominal | tional | ominal |         |         |         |
|          |        |        |        | E-CDEM  | E-CDEM  |         |
|          | Turned | El     | E      | -HVPS=5 | -HVPS=2 |         |
|          | on     | ec-CH- | -CDEM- |         |         |         |
|          | 8      | HVPS=0 | HVPS=2 | P-CDEM  | P-CDEM  |         |
|          | /30/04 |        |        | -HVPS=4 | -HVPS=3 |         |
|          |        | Pr     | P      |         |         |         |
|          | El     | ot-CH- | -CDEM- |         |         |         |
|          | ec-CH- | HVPS=0 | HVPS=0 |         |         |         |
|          | HVPS=4 |        |        |         |         |         |
|          |        | 1 of 4 |        |         |         |         |
|          | Pr     | Tele   |        |         |         |         |
|          | ot-CH- | scopes |        |         |         |         |
|          | HVPS=0 | inope  |        |         |         |         |
|          |        | rative |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SBUV** |        | De     |        | Oper    | Nominal |         |
|          |        | graded |        | ational |         |         |
|          |        |        |        |         | Anode   |         |
|          |        | G      |        | Plan    | Mode    |         |
|          |        | rating |        | d       |         |         |
|          |        | motor  |        | iscrete |         |         |
|          |        | stuck  |        | mode    |         |         |
|          |        | at     |        | test 21 |         |         |
|          |        | po     |        | Oct     |         |         |
|          |        | sition |        |         |         |         |
|          |        | --930  |        | Flex    |         |         |
|          |        | on     |        | Mem-3   |         |         |
|          |        | 7/8/04 |        | testing |         |         |
|          |        | re     |        |         |         |         |
|          |        | covery |        | Co      |         |         |
|          |        | ops    |        | mpleted |         |         |
|          |        | succ   |        |         |         |         |
|          |        | essful |        | D       |         |         |
|          |        | 7/9    |        | egraded |         |         |
|          |        |        |        | Ozone   |         |         |
|          |        | Flex   |        | data    |         |         |
|          |        | memory |        | r       |         |         |
|          |        | 3      |        | eported |         |         |
|          |        | (giant |        | TOAR    |         |         |
|          |        | step)  |        | 435     |         |         |
|          |        | ops    |        |         |         |         |
|          |        | sus    |        | Backup  |         |         |
|          |        | pended |        | D       |         |         |
|          |        | indefi |        | iffuser |         |         |
|          |        | nitely |        | inop    |         |         |
|          |        | on     |        |         |         |         |
|          |        | 1      |        | Primary |         |         |
|          |        | 2/2/03 |        | D       |         |         |
|          |        |        |        | iffsuer |         |         |
|          |        | R      |        | dep     |         |         |
|          |        | educed |        | loyment |         |         |
|          |        | oper   |        | problem |         |         |
|          |        | ations |        | TOAR    |         |         |
|          |        | s      |        | 426     |         |         |
|          |        | tarted |        |         |         |         |
|          |        | 6/5/03 |        | AMSU    |         |         |
|          |        |        |        | EMI     |         |         |
|          |        |        |        | causing |         |         |
|          |        |        |        | erratic |         |         |
|          |        |        |        | B       |         |         |
|          |        |        |        | ehavior |         |         |
|          |        |        |        | in PMT  |         |         |
|          |        |        |        | cathod, |         |         |
|          |        |        |        | range 3 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | N/A    | ON      | ON      |         |
| SADPOS** |        |        |        |         |         |         |
|          |        |        |        | Enabled | ENABLED |         |
|          |        |        |        | MFa     |         |         |
|          |        |        |        | ctor50% | D       |         |
|          |        |        |        |         | isabled |         |
|          |        |        |        | Aut     | 14 Oct  |         |
|          |        |        |        | onomous | 02:15   |         |
|          |        |        |        | impleme | re      |         |
|          |        |        |        | ntation | enabled |         |
|          |        |        |        | 10/14at | 03:30   |         |
|          |        |        |        | 02:15Z  | for     |         |
|          |        |        |        | Co      | s       |         |
|          |        |        |        | mmanded | un-moon |         |
|          |        |        |        | back to | eclipse |         |
|          |        |        |        | backup  |         |         |
|          |        |        |        | at      |         |         |
|          |        |        |        | 07:45   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **T      | N      | N      | TCE26  | Nominal | TCE3H   |         |
| HERMAL** | ominal | ominal | & 15H  |         | Batt 2A |         |
|          |        |        |        | TCE24   | heater  |         |
| 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    |         | TOAR    |         |
|          | onfigu |        |        |         | 428     |         |
|          | ration |        | HIRS   |         |         |         |
|          | fol    |        | FW     |         | CLOSED  |         |
|          | lowing |        | Heat   |         | 9/14/04 |         |
|          | 7      |        | OFF    |         | no      |         |
|          | /25/04 |        |        |         | cor     |         |
|          | U      |        | TCE2   |         | rective |         |
|          | Vtrip. |        | 4L&25L |         | action  |         |
|          |        |        | (HIRS  |         | po      |         |
|          |        |        | &      |         | ssible. |         |
|          |        |        | AVHRR) |         |         |         |
|          |        |        | failed |         | AMSU-A1 |         |
|          |        |        | 5      |         | s       |         |
|          |        |        | /13/98 |         | urvival |         |
|          |        |        |        |         | heaters |         |
|          |        |        | RCE    |         | on      |         |
|          |        |        | ther   |         | 1       |         |
|          |        |        | mostat |         | 0/29/03 |         |
|          |        |        | failed |         |         |         |
|          |        |        | 5      |         |         |         |
|          |        |        | /13/98 |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | S/C in |         |         |         |
|          |        |        | strong |         |         |         |
|          |        |        | c      |         |         |         |
|          |        |        | ooling |         |         |         |
|          |        |        | trend  |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N   |
|          | *N12** | *N14** | *N15** |         |         | OAA-N18 |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12 The RF conflict with N15 VTX-1 will be ending on 20 Oct 04 at
which point the N15 VTX transmitter will be turned

back on. Because of other RF conflicts, N12 continues to have far fewer
passes resulting in less capability for ensuring

nominal health of the spacecraft. With the data currently available
there does not seem to be any problems at this time.

EMOSS monitored the solar eclipse event on N12 between 00:30 and 04:45z
on 14 Oct. There was no significant impact on the spacecraft and no
reconfigurations were required in preparation for this event. Carl
Gliniak was EMOSS POC.

NOAA-14: The N14 power situation remained stable during the past
reporting period although minimum battery voltages have started to
occasionally fall below 20.5 (illustration 1) as the percentage of time
that N14 spends in the dark during each orbit has begun to slowly
increase. This trend is expected to continue through mid-November where
the darkness percentage should peak at 23% per orbit. By that time, it
may be possible that a power subsystem reconfiguration will be required
to maintain an adequate margin and ensure no undervoltage situation or
additional shunt stress occurs. Discussions and analysis are ongoing.

EMOSS monitored the solar eclipse event on N14 between 00:30 and 04:45z
on 14 Oct. There was no significant impact on the spacecraft and no
reconfigurations were required in preparation for this event
(illustration 2). Analysis of the EMOSS eclipse model showed a high
degree of accuracy in the predictions of when the eclipse would begin.
Carl Gliniak was EMOSS POC monitoring in the SOCC during the eclipses.

NOAA-15: The cooling trend on N15 appears to have bottomed out and
perhaps reversed itself in conjunction with the sun angle starting a new
uptrend (illustration 3). However, this new uptrend will be shorted
lived and only bring the sun angle up to approximately 15 before it
again begins to trend downward. Therefore, many spacecraft component
temps will continue to run at relatively low values. Currently there
appear to be no subsystem health or image quality degradation associated
with the low temperatures achieved during this cooling trend.

The small AVHRR scan motor mini current surge that was reported in the
previous report has since returned back to nominal where it remains as
of this writing. AMSU-B was also nominal during the past reporting
period while HIRS filter motor continues to experience mini current
surges at least once per week (illustration 4).

EMOSS monitored the solar eclipse event on N15 between 00:30 and 04:45z
on 14 Oct. There was no significant impact on the spacecraft and no
reconfigurations were required in preparation for this event although
AVHRR did show some reaction (illustration 5). Analysis of the EMOSS
eclipse model showed a high degree of accuracy in the predictions of
when the eclipse would begin. Carl Gliniak was EMOSS POC monitoring in
the SOCC during the eclipses.

NOAA-16: The N16 AVHRR scan motor current, settled back down after a
small surge last week and continues to operate almost exclusively within
nominal values. In addition, the synch delta value, which last week
suddenly fell to near zero, remains at near zero. AVHRR thermal profile
shows a continued slow uptrend and TCE24 remains powered off to "assist"
this warming trend. All imagery for the week has appeared nominal. Sally
House and Jim Walters are EMOSS POC's for this payload. (See
illustrations 6-8).

The N16 HIRS filter motor current was also stable and nominal during the
past reporting period although it did rise slightly during that time
(illustrations 9-10). In addition, HIRS Patch power, which is currently
on the EMOSS "watch list" was stable throughout the past reporting
period.

However, the performance profile of the N16 Earth Sensors continues to
exhibit behavior suggestive of direct sunlight entering the detectors
(as depicted by the ESA ORS voltages and Sun Moon warning status
(illustration 11). This issue started on or about 30 Sept and current
opinion is that it is a seasonal event that does not constitute a health
issue for the ADACS at this time because GEODAT just blocks out the
quadrant that is experiencing the sun glint. EMOSS engineer Jim Sheperd
has already submitted an Event Report on this issue. Because of the
continued stability of the N16 sun angle for the next several weeks,
this situation is expected to continue.

The N16 SBUV was somewhat thermally affected by the 14 Oct eclipse which
resulted in two solar array offset moves within a 5 hour span. In
addition, the test characterizing the SBUV's wavelength dependence of
the inter-range ratio between range2 and range 3 measurements was
concluded on 11 Oct after executing once per day since 4 Sept out of
Flex Memory-3 (illustration 12). A new test, requested to help with the
investigation of TOAR 435 is currently planned for implementation on
Thursday, 21 Oct.  This new test will be executed using a spacecraft
macro.  The macro will be loaded and enabled during the pass at 14:40z. 
The macro closes the cal lamp door and commands position mode when the
satellite enters darkness, and opens the door and commands discrete mode
when the satellite enters light. The macro will execute for four orbits
and then it will disable itself. EMOSS engineer Jon Woodward created and
tested the macro and Jim Walters is POC for its implementation.

N16 (cont)

In a correction to lasts week report, N16 did NOT have its SADPOS
disabled in preparation for the solar eclipse event on 14 Oct as had
been specified. EMOSS monitored the solar eclipse event on N16 as it
occurred on 14 Oct. During the eclipse, at 02:23:22Z, the N16 SADPOS
autonomously took control of the solar array from SADCS and repositioned
the solar array offset to zero degrees (from -40 degrees). During the
event, Barrow was in contact with N16 so the situation was immediately
detected by engineers and controllers monitoring the support. Symptoms
of this event were; several hardware bi-level miscompare flags, a
variety of spacecraft subsystem thermal profile changes, and a
significant increase in spacecraft pitch while the array was
repositioned which quickly damped itself back to nominal. At no time
during this event was there any significant or immediate threat to
overall spacecraft status and/or health. The primary engineering concern
regarding this unexpected reconfiguration was its implications on shunt
loading caused by increased solar array output and manifested by shunt
temperatures peaking at 81 degrees C, approximately 20 degrees warmer
than average (and 4 degrees below the yellow high limit). While the
shunt situation was also not considered a significant threat to
spacecraft health, the engineering consensus was to return the
spacecraft back to its previous configuration as soon as possible. The
recovery operation consisted of clearing the hardware flags and
commanding solar array control back to SADCS with SADPOS as backup at
06:00Z followed by commanding the solar array back to -40 degree offset
at a 07:45Z.  Each of these operations proceeded nominally and resulted
in spacecraft thermal profiles returning back to their pre-event levels.
Investigations by the team determined that the N16 SADPOS takeover
occurred, exactly as it was designed to do, because the spacecraft
experienced an "unexpected" loss of sunlight, for longer than 8 minutes,
the trigger threshold for SADPOS control. The team has concluded that
the root cause of this event is attributable primarily to spacecraft
documentation (P&CH) that specifies both a variable and an incorrect
definition of what constitutes unexpected spacecraft darkness (100 mAmp
solar array patch current specified vs. the actual value of no less than
150mAmps). This incorrect information was then loaded into the EMOSS
eclipse analysis model resulting in an underestimation of darkness
duration by almost 50% and a recommendation that SADPOS not be disabled
for the N16 eclipse. EMOSS engineers responding to the event, performing
the analysis and generating the Event Report were Carl Gliniak, Jon
Woodward and Jeff Devine. (Illustrations 13-17)

NOAA-17: EMOSS engineers continue to closely monitor the N17 AVHRR scan
motor for signs of degraded performance. During

the past week, the performance remained stable as did its synch delta
value operating profile. In addition, N17 AVHRR temperatures continue to
operate in nominal range and values and there have been no reports or
observations of degraded imagery (illustration 18). Sally House and Jim
Walters are EMOSS POC's.

In a correction to lasts week report, N17 DID have its SADPOS disabled
in preparation for the solar eclipse event on 14 Oct at 02:15Z which was
returned back to enabled at 03:50Z. This configuration was commanded
because the EMOSS solar eclipse model predicted that the spacecraft
would be in "unexpected darkness" for more than 7 minutes, too close to
the 8 minute threshold where SAPOS might autonomously take over control
of the solar array. EMOSS engineer Carl Gliniak implemented this
commanding and monitored the solar eclipse effects during this interval.
There was no significant impact on the spacecraft originating from this
event (illustration 19). Analysis of the EMOSS eclipse model showed a
high degree of accuracy in the predictions of when the eclipse would
begin.

The ADACS on N17 was also nominal during the past reporting period
although slightly less stable (as measured by yaw update) than is
desirable (illustration 20). Jim Sheperd is EMOSS POC for this issue.

NOAA-N: EMOSS engineers began regenerating the ascent data base
originally delivered in mid-June 2004. This data base is

scheduled to be re-transmitted to NASA within the next week and into
PACS by 2 Nov. Michelle Settles is EMOSS POC.

EMOSS engineers continue supporting reviews, analysis, testing and
product preparations for the 20 Oct end to end test.

MISC: Meetings supported by EMOSS included: Internal launch readiness
meeting, MOWG, Ascent data base recovery meeting, COP Reviews, N18
Monitoring Guidelines Training and COP reviews.

The next database release is scheduled for Nov. 2.  All approved CCRs
should be turned into Michelle no later than Oct. 25.

EMOSS engineer Jim Sheperd supported the scheduling office on the SOMS
generated ephemeris loads which appear to be working well. Future plans
are to have these SOMS generated ephemeris loads execute of the of the
schedule.

EMOSS engineer Jeff Devine worked with the software office to develop
and test a process that will ensure the EMOSS HAF file archive can be
reformatted in DMF file that are required by ABE. The reformatting
process was successful but ABE was still unable to generate graphs from
the file. Work is continuing.

![](media/image1.wmf){width="7.747916666666667in"
height="5.871527777777778in"}

Illustration 1: N14 Power Subsystem Analysis

(Other than battery voltage creeping a little lower, everything looks
nominal)

![](media/image2.wmf){width="7.870138888888889in"
height="5.963888888888889in"}

Illustration 2: N14 Selected Power Values during Sun-Moon Eclipse of 14
Oct 2004

![](media/image3.wmf){width="7.747916666666667in"
height="5.879166666666666in"}

Illustration 3: N15 Selected Payload Thermal Analysis

(Cooling is over now that sun angle has bottomed out and started to
reverse its downtrend. However, temperatures will probably stay relative
low throughout the winter since sun angle will not increase beyond 16
degrees this cycle. Note the effect that the sun-moon eclipse had on
AVHRR on JDAY 288.)

![](media/image4.wmf){width="8.002777777777778in"
height="6.0569444444444445in"}

[Illustration 4: N15 Payload Motor Health Analysis]{.underline}

(All within nominal or typical values and profiles except for that
little

"hic-up" on the AVHRR on day 286 which has since stabilized. Note the
effect that the sun-moon eclipse had upon the AVHRR on JDAY 288)

![](media/image5.wmf){width="8.002777777777778in"
height="6.064583333333333in"}

Illustration 5: N15 Selected Power Values during Sun-Moon Eclipse of 14
Oct 2004.

![](media/image6.wmf){width="8.002777777777778in"
height="6.054166666666666in"}

Illustration 6: N16 AVHRR Scan Motor Health Analysis

(Continued nominal performance)

![](media/image7.wmf){width="7.875in" height="6.010416666666667in"}

[Illustration 7: N16 AVHRR Synch Delta Analysis]{.underline}

(Currently averaging near zero, about as good as it gets.)

![](media/image8.wmf){width="7.747916666666667in"
height="5.879166666666666in"}

[Illustration 8: N16 AVHRR & other payload Thermal Analysis]{.underline}

AVHRR is nominal but climbing with TCE24 remaining off. Other payloads
are stable and show very minor influences caused by the two solar array
moves on 14 Oct (J288).

![](media/image9.wmf){width="8.002777777777778in"
height="6.045833333333333in"}

[Illustration 9: N16 HIRS Health Analysis]{.underline}

(Filter motor current showing a small "build up" that hopefully will not
lead to another major surge event.)

![](media/image10.wmf){width="8.002777777777778in"
height="6.064583333333333in"}

[Illustration 10: N16 HIRS Filter Motor Trends and
Tendencies]{.underline}

![](media/image11.wmf){width="8.247916666666667in"
height="6.250694444444444in"}

[Illustration 11: N16 Earth Sensor trends and tendencies.]{.underline}

(Seasonal "sun glint" on the earth sensor is more intense this season
because of the 49 degree sun angle being experienced by the spacecraft.
This sun angle will remain relatively stable for a few weeks at least so
the glint will continue on each orbit until the angle changes
significantly. This situation is not a health concern because the
on-board GEODAT directs the spacecraft to ignore the quadrants where and
when this glint is being experienced

![](media/image12.wmf){width="7.870138888888889in"
height="5.972222222222222in"}

[Illustration 12: SBUV Health Analysis]{.underline}

Flex Memory-3 Testing ended on 11 Oct. A new test is planned for 21 Oct.
Note the influence that the SADPOS/Array Move/Sun-Moon eclipse had on
the SBUV.)

![](media/image13.wmf){width="8.0in" height="5.465972222222222in"}

[Illustration 13: N16 Predicted (purple line) vs Actual (dark blue line)
sun-moon eclipse onset.]{.underline}

(Very closely correlated and definitely close enough to make well
informed reconfiguration recommendations.

![](media/image14.wmf){width="7.998611111111111in"
height="6.129861111111111in"}

Illustration 14: N16 Eclipse contingency situation timeline.

![](media/image15.wmf){width="7.997916666666667in"
height="5.884722222222222in"}

Illustration 15: N16 Darkness Definition Comparison

(The difference between what the spacecraft actually used and the
default value specified in the P&CH which was used in the model to
determine the necessity of disabling SADPOS).

![](media/image16.wmf){width="8.247916666666667in"
height="6.250694444444444in"}

Illustration 16: SADPOS Control & Solar Array Move Effects on ADACS
subsystem 14 Oct 2004

(Other than the rapid increase in pitch while the array was in motion
there was not a significant effect.).

![](media/image17.wmf){width="8.125694444444445in"
height="6.157638888888889in"}

Illustration 17: N16 Selected Power Values during Sun-Moon Eclipse of 14
Oct 2004.

1= SADPOS takes control and moves array offset to zero

2= SADPOS is commanded to backup with SADCS back in control

> 3=Array offset is commanded back to -40 degrees

![](media/image18.wmf){width="8.002777777777778in"
height="6.054166666666666in"}

[Illustration 18: N17 AVHRR Health Analysis]{.underline}

(Holding steady and hopefully continuing to do so.)

![](media/image19.wmf){width="8.002777777777778in"
height="6.0569444444444445in"}

Illustration 19: N17 Sun-Moon eclipse effects on spacecraft power
subsystem

(Note that SADPOS was disabled at JDAY 288.1 (02:15Z) through 288.2
(04:00Z)

![](media/image20.wmf){width="8.002777777777778in"
height="6.045833333333333in"}

Illustration 20: N17 Attitude Stability Analysis

(Generally nominal; a little less stable than desired on the Yaw
Updates)

# N17 CPU Single Event Upset Scrub Analysis (New). 

# Last week and total.

# ![](media/image21.wmf){width="7.5in" height="1.8944444444444444in"}

![](media/image22.wmf){width="7.251388888888889in"
height="5.590972222222222in"}

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING October 15, 2004

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

  FRI. 10/08   N/A         +032 msec   +004 msec   -027 msec   -017 msec

  SAT. 10/09   -088 msec   +033 msec   +006 msec   -027 msec   -018 msec

  SUN. 10/10   -089 msec   +034 msec   +003 msec   -027 msec   -019 msec

  MON. 10/11   -094 msec   +039 msec   +003 msec   -026 msec   -019 msec

  TUE. 10/12   N/A         +040 msec   +002 msec   -027 msec   -017 msec

  WED. 10/13   -090 msec   +040 msec   +002 msec   -027 msec   -018 msec

  THU. 10/14   -091 msec   +035 msec   +002 msec   -027 msec   -017 msec
  ------------ ----------- ----------- ----------- ----------- -----------

EMOSS POC for this chart is JIM SHEPHERD

NOAA-12 \*Alternating +/- 500 millisecond clock jumps will occur 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
11/16/04.

> Daily ETCUP bias of +6.5 mSec started on 12/10/03.

NOAA-14: As of 1223/03 the TIP clock is corrected daily by ---7.0 msec
to compensate for drift.

Subtracted 150 mSecs on 30 June

NOAA-15: As of 04/23/03 the TIP clock is corrected daily by ---8 msec to
compensate for drift.

Added 100 msec to spacecraft command clock on 31 Aug 04

NOAA-16: As of 12/23/03 the TIP clock is corrected daily by --5.5 msec
to compensate for drift.

Subtracted 100 msec from spacecraft command clock on 31 Aug 04.

NOAA-17: As of 12/23/03 the TIP clock is corrected daily by --3 msec to
compensate for drift.

Added 125 Msecs3 Feb 04.

![](media/image23.wmf){width="7.374305555555556in" height="3.775in"}

POES Engineering Contact List

[Government]{.underline}

Renee Smith-Dearing NOAA POES Constellation Lead 301-817-4117

Dong Han: NOAA, POES Payloads 301-817-4127

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

Angelique Riley, EMOSS, POES Comm and DHS (outgoing) 301-817-4028

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 (in training) 301-817-4026

William Chadwick EMOSS, POES Comm and DHS (in training) 301-817-4015