**POLAR Spacecraft Status As of: Weds 19 Jan 05 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:    | AM:    | AM:    | PM:     | AM:     | Planned |
| ponent** | 1      | 2      | 1      | 1430=AN | 2224=AN | PM      |
|          | 648=AN | 019=AN | 817=AN |         |         |         |
|          |        |        |        | GAC&LAC | GAC&LAC | Plan    |
|          | STIP   | STIP   | GAC    | data    | data    | A       |
|          | data   | data   | data   |         |         | N=14:00 |
|          | only   | only   | only   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **LA     | 05     | 12     | 05     | 0       | 6/24/02 | #####   |
| UNCHED** | /14/91 | /30/94 | /13/98 | 9/21/00 |         | ## NET  |
|          |        |        |        |         |         | 19Mar05 |
+----------+--------+--------+--------+---------+---------+---------+
| **CNTL   | OBP2   | OBP2   | OBP2   | OBP2    | OBP2    | Dress   |
| OBP**    |        |        |        |         |         | R       |
|          |        | OBP1   |        |         |         | ehearse |
|          |        | inope  |        |         |         | #1      |
|          |        | rative |        |         |         |         |
|          |        |        |        |         |         | Co      |
|          |        |        |        |         |         | mpleted |
|          |        |        |        |         |         | 13Jan   |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS**  | B-BUS  | B-BUS  | B-BUS  | B-BUS   | B-BUS   | Dress   |
|          |        |        |        |         |         | R       |
|          | XSU-1  | XSU2   | XSU-1  | XSU-1   | XSU-1   | ehearse |
|          |        | (XSU1  |        |         |         | #2      |
|          |        | inop)  |        |         |         |         |
|          |        |        |        |         |         | 10 Feb  |
|          |        |        |        |         |         | 05      |
+----------+--------+--------+--------+---------+---------+---------+
| **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 |        |         |         |         |
|          |        | when   | N2 Low |         |         |         |
|          |        | mo     | PSI    |         |         |         |
|          |        | de=YGC | i      |         |         |         |
|          |        |        | nvalid |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI     | PRI     |         |
|          |        |        |        |         |         |         |
|          | BU     | BU     | daily  | Daily   | Daily   |         |
|          | random | random | bias   | Bias    | Bias    |         |
|          | e      | e      | -8 mS  | --5.5   | --3 mS  |         |
|          | nables | nables |        | mS      |         |         |
|          |        | daily  | +100   |         |         |         |
|          | daily  | bia    | mS     | -100 mS |         |         |
|          | bi     | s--7.0 | 31Au04 | 31Au04  |         |         |
|          | as+6.5 | mS     |        |         |         |         |
|          | 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 |         |
|          |        |        | 3      |         |         |         |
|          |        |        | Ch     | Swap    |         |         |
|          |        |        | annels | con     |         |         |
|          |        |        | inop   | sidered |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DTRs** | 3A, 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      |
|          | 5B     |        |        | 3A      | D       | corders |
|          |        |        |        |         | TR2-SSR |         |
|          | As of  |        |        | 4B STIP |         |         |
|          | 8 Dec  |        |        | only    |         |         |
|          | 04     |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | OFF    | INOP    | #2 ON   | #       |
|          |        |        |        |         |         | 1=137.1 |
| (APT     | 137.50 | Since  | t      | OFF     | 137.62  | MHZ     |
| data)    | MHZ    | 8      | hrough | since   | MHZ     | #2=1    |
|          |        | /14/02 | 2/1/05 | 1       |         | 37.9125 |
|          | Co     |        | co     | 1/15/00 |         | MHZ     |
|          | nflict |        | nflict |         |         |         |
|          | with   |        | with   |         |         |         |
|          | 15     |        | N12    |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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 | Eclipse |         |
| angle)   | Full   | E      | Full   | all     | all     |         |
|          | Sun    | clipse | Sun    | year    | year    |         |
|          |        | all    |        |         |         |         |
|          | B      | year   | Sun    | Sun     | Sun     |         |
|          | attery |        | Angle  | Angle   | Angle   |         |
|          | UVtrip | Sun    | 11     | 54      | at 63   |         |
|          | 7/25   | Angle  |        |         |         |         |
|          |        | at 34  | dow    | Uptrend | Down    |         |
|          | Sun    | down   | ntrend | to 55   | trend   |         |
|          | Angle  | trend  | to 0   |         | to 62   |         |
|          | 21     | to 32  | degs   | Batts   |         |         |
|          |        |        | in lat | 1-3=    | Batts   |         |
|          | steady | Batts  | Feb    | LRC     | 1-3=    |         |
|          | trend  | 1-3=   |        |         | LRC     |         |
|          |        | LRC    | Batts  | V/T=4/8 |         |         |
|          | Batts  |        | 1-3=   |         | V/T=    |         |
|          | 1      | Batts  | LRC    | SA      | 4/8     |         |
|          | &2=LRC | 1&3V/  |        | CANT=22 |         |         |
|          |        | T=8/11 | V      | degs    | SA      |         |
|          | V/T=4  |        | /T=7/9 |         | CANT=37 |         |
|          |        | Batt2  |        |         | degs    |         |
|          | Shunt  | V      | SA     |         |         |         |
|          | de     | T=9/11 | C      |         |         |         |
|          | graded |        | ANT=37 |         |         |         |
|          |        | VT and | degs   |         |         |         |
|          | SA     | PSS    |        |         |         |         |
|          | C      | c      |        |         |         |         |
|          | ANT=37 | hanges |        |         |         |         |
|          | degs   | p      |        |         |         |         |
|          |        | lanned |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | Shunt  |        |         |         |         |
|          |        | De     |        |         |         |         |
|          |        | graded |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SA     |        |         |         |         |
|          |        | C      |        |         |         |         |
|          |        | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | INOP   | N      | Nominal | ###     | New     |
| *AVHRR** | ominal |        | ominal |         | Nominal | br      |
|          |        | Scan   |        | TCE24   |         | ushless |
|          |        | motor  | Rare   | OFF     | 3A-B    | scan    |
|          |        | s      | major  | 4/14    | switch  | motors  |
|          |        | talled | scan   |         | enabled |         |
|          |        |        | motor  | Chan 3B |         |         |
|          |        | 14 Apr | s      | only.   | Scan    |         |
|          |        | 04     | urges. |         | Motor   |         |
|          |        |        | Last   |         | less    |         |
|          |        |        |        |         | stable  |         |
|          |        |        | In     |         | than    |         |
|          |        |        | cident |         | desired |         |
|          |        |        | 11     |         |         |         |
|          |        |        | /18/04 |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | Opera  | Oper    | O       |         |
| MSU-A1** |        |        | tional | ational | FF/INOP |         |
|          |        |        |        |         |         |         |
|          |        |        | Ch14   | Primary | Since   |         |
|          |        |        | inope  | PLLO    | 1       |         |
|          |        |        | rative | chans   | 0/30/03 |         |
|          |        |        |        | 9-14    |         |         |
|          |        |        | Ch11   | bias    | S       |         |
|          |        |        | inope  | shift.  | urvival |         |
|          |        |        | rative |         | heat    |         |
|          |        |        |        | Backup  | on.     |         |
|          |        |        |        | PLLO    |         |         |
|          |        |        |        | inop    |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Sign    |         |         |
|          |        |        |        | ificant |         |         |
|          |        |        |        | noise   |         |         |
|          |        |        |        | present |         |         |
|          |        |        |        | on      |         |         |
|          |        |        |        | chans   |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | 9-14    |         |         |
|          |        |        |        | since   |         |         |
|          |        |        |        | 15 Jan  |         |         |
|          |        |        |        | 05      |         |         |
|          |        |        |        | ATOVS   |         |         |
|          |        |        |        | p       |         |         |
|          |        |        |        | roducts |         |         |
|          |        |        |        | i       |         |         |
|          |        |        |        | mpacted |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | N      | Nominal | Nominal |         |
| MSU-A2** |        |        | ominal |         |         |         |
|          |        |        |        | Space   |         |         |
|          |        |        |        | Pos     |         |         |
|          |        |        |        | ition-2 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | Opera  | Oper    | Nominal | R       |
| AMSU-B** |        |        | tional | ational |         | eplaced |
|          |        |        |        |         |         | by MHS  |
|          |        |        | Bias   | Space   |         |         |
|          |        |        | in All | Pos     |         |         |
|          |        |        | Chans. | ition-3 |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Motor  | IPD     |         |         |
|          |        |        | surges | reports |         |         |
|          |        |        | most   | channel |         |         |
|          |        |        | recent | 8       |         |         |
|          |        |        | 11     | degr    |         |         |
|          |        |        | /14/04 | adation |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Recent |         |         |         |
|          |        |        | i      |         |         |         |
|          |        |        | nstabi |         |         |         |
|          |        |        | lities |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | IPD    |         |         |         |
|          |        |        | R      |         |         |         |
|          |        |        | eports |         |         |         |
|          |        |        | of     |         |         |         |
|          |        |        | de     |         |         |         |
|          |        |        | graded |         |         |         |
|          |        |        | data   |         |         |         |
|          |        |        | on     |         |         |         |
|          |        |        | Chan-3 |         |         |         |
|          |        |        | since  |         |         |         |
|          |        |        | 4/30   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ### HIRS | ON /   | N      | VA     | D       | NOMINAL | ####    |
|          | INOP   | OMINAL | RIABLE | EGRADED |         | #### HI |
|          |        |        |        |         | 1 Pixel | RS-4 re |
|          | Turned | Opera  | FW     | Long    | cross   | placing |
|          | on     | tional | m      | wave    | track   |  HIRS-3 |
|          | 8      |        | ode=Hi | channel | misal   |         |
|          | /30/04 | Occa   | Powr   | degr    | ignment |         |
|          |        | sional |        | adation | .       |         |
|          | For    | loss   | FW     | since   |         |         |
|          | power  | of     | Heater | 15 Dec  |         |         |
|          | b      | Fwheel | OFF    | 04      |         |         |
|          | alance | synch  |        |         |         |         |
|          |        |        | Fr     | Occ     |         |         |
|          | Filter |        | equent | asional |         |         |
|          | Wheel  |        | Filter | major   |         |         |
|          | turned |        | Motor  | FM      |         |         |
|          | OFF    |        | c      | surges, |         |         |
|          | 10/    |        | urrent | most    |         |         |
|          | 17/02. |        | "mini" | recent  |         |         |
|          |        |        | surges |         |         |         |
|          |        |        |        | 12/9/04 |         |         |
|          |        |        | Occa   |         |         |         |
|          |        |        | sional | TOAR    |         |         |
|          |        |        | major  | 441     |         |         |
|          |        |        | FM     | su      |         |         |
|          |        |        | c      | bmitted |         |         |
|          |        |        | urrent | 11      |         |         |
|          |        |        | s      | Jan04   |         |         |
|          |        |        | urges, |         |         |         |
|          |        |        | most   | HIRS    |         |         |
|          |        |        | recent | filter  |         |         |
|          |        |        | 1      | heater  |         |         |
|          |        |        | 2/9/04 | turned  |         |         |
|          |        |        |        | OFF     |         |         |
|          |        |        |        | 1/18/04 |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Plan    |         |         |
|          |        |        |        | switch  |         |         |
|          |        |        |        | to HIGH |         |         |
|          |        |        |        | power   |         |         |
|          |        |        |        | 1/25/05 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | R       |
|  MHS/MIU |        |        |        |         |         | 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      |        | D       | Mode    |         |
|          |        | rating |        | egraded |         |         |
|          |        | motor  |        | Ozone   |         |         |
|          |        | sticks |        | data    |         |         |
|          |        |        |        |         |         |         |
|          |        | Flex   |        | Backup  |         |         |
|          |        | memory |        | D       |         |         |
|          |        | 3      |        | iffuser |         |         |
|          |        | (giant |        | inop    |         |         |
|          |        | step)  |        |         |         |         |
|          |        | ops    |        | Primary |         |         |
|          |        | sus    |        | D       |         |         |
|          |        | pended |        | iffuser |         |         |
|          |        | indefi |        | dep     |         |         |
|          |        | nitely |        | loyment |         |         |
|          |        | on     |        | problem |         |         |
|          |        | 1      |        | TOAR    |         |         |
|          |        | 2/2/03 |        | 426     |         |         |
|          |        |        |        |         |         |         |
|          |        | R      |        | AMSU    |         |         |
|          |        | educed |        | EMI     |         |         |
|          |        | oper   |        | causing |         |         |
|          |        | ations |        | erratic |         |         |
|          |        | s      |        | B       |         |         |
|          |        | tarted |        | ehavior |         |         |
|          |        | 6/5/03 |        | in PMT  |         |         |
|          |        |        |        | cathod, |         |         |
|          |        |        |        | range 3 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | N/A    | ON      | ON      |         |
| SADPOS** |        |        |        |         |         |         |
|          |        |        |        | Enabled | ENABLED |         |
|          |        |        |        | MFa     |         |         |
|          |        |        |        | ctor50% |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Aut     |         |         |
|          |        |        |        | onomous |         |         |
|          |        |        |        | impleme |         |         |
|          |        |        |        | ntation |         |         |
|          |        |        |        | 10/14   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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    | HIRS    | TOAR    |         |
|          | onfigu |        |        | Filter  | 428     |         |
|          | ration |        | HIRS   | heater  |         |         |
|          | fol    |        | FW     | turned  | CLOSED  |         |
|          | lowing |        | Heat   | OFF     | 9/14/04 |         |
|          | 7      |        | OFF    | 1/18/05 | no      |         |
|          | /25/04 |        |        |         | cor     |         |
|          | U      |        | TCE2   | \       | rective |         |
|          | Vtrip. |        | 4L&25L | @19:10Z | 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 There were no changes on N12 during the past reporting period.

NOAA-14: The N14 power situation remained stable last week as the
percentage of time that N14 spends in darkness each orbit trended slowly
downward (illustration 1). Plans are in place to change VT levels on all
three batteries (Battery-1 from 8/11 to 7/11, Battery-2 from 9/11 to
8/11 and Battery-3 from 8/11 to 7/11) as well as reduce the power
survival safestate trigger to 19.0 (from 19.4) volts with an
implementation date expected to be sometime next week. Carl Gliniak and
Jon Woodward are POC's.

NOAA-15: The N15 AMSU-B was generally stable last week as was the AVHRR
including the scan motor currents and

temperatures (illustration 2) and synch delta values. The HIRS was
generally erratic with numerous "mini" filter motor current surges that
stayed within typical ranges (illustration 3). There were no reports of
image degradation from any of these payloads during the past reporting
period.

The VTX transmitters N15 is off (no APT data) and will remain so until 1
Feb 05 when its RF conflict with N12 ends.

The command clock offset on N15 is approaching 75 mSecs. Therefore at
the next opportunity, EMOSS will be adjusting this clock by 100 mSecs in
order to keep this error within 1 AVHRR pixel. Jim Sheprd is EMOSS POC
and the date of implementation is still TBD.

NOAA-16 The N16 HIRS long wave channel degradation situation continued
throughout the past reporting period. During this

time, the HIRS filter heater remained on, per the Anomaly Teams
recommendation. The team reconvened on 18 Jan to discuss the HIRS
responses to the heater turnon from 10 Jan. Analysis focused on any
observed improvement (tightening of the high vs. low range) in the
period monitor while the heater was on. This did not occur. All
engineering values, the period monitor and channel noise levels remained
basically unchanged since the previous meeting (and previous weekly
report) on 12 Jan. In response the team determined that turning off the
heater, letting the thermal situation stabilize for several days, then
reconfiguring HIRS to high power mode (as N15 now operates) would be the
next course of action. Therefore, the heater was commanded off the same
day (18 Jan) at 19:10Z (illustrations 4-7). Current plans are to have
the team reconvene at 10:30 eastern time on 25 Jan to finalize a GO/NO
GO decision on HIRS high power mode. As of this writing the consensus is
that high power mode should be implemented. If this consensus remains in
place following the 25 Jan meeting, the operation will be performed that
same day and the team will reconvene on 26 Jan at 13:30 to assess the
HIRS response to this reconfiguration and determine any additional
workarounds for this situation. For those who would like to participate
in the HIRS Anomaly Response team telecom, the number is, Outside NOAA,
301-817-4220, Inside NOAA dial 2000 Wait for a dial tone, followed by 2
short beeps, Enter 1016\*, then Enter 1234# and you should be into the
conference.

Early on 18 Jan 05, EMOSS engineers received a report from AMSU-A1 users
that channels 9-14 were exhibiting a significant degradation because of
increased noise, especially on Channel 9 (illustration 8). By the end of
18 Jan, the noise had become so significant that the Met office had
taken Chs. 10-11 out of operations out since their 6am run on 17 Jan
adding to an already blacklisted Ch. 9. Furthermore, also by the end of
18 Jan, Awdhesh K. Sharma had informed the user community "that
NOAA/NESDIS ATOVS sounding products distribution has been ceased due to
AMSU-A channels 9-14 increased noise and HIRS instrument noise. This has
caused major impacts on the retrieved 850 mb and 500 mb temperature
retrievals. We were generating the degraded quality products in the
absence of HIRS data but now without AMSU-A channels 9-14 the sounding
products do not qualify as operational quality products so the
distribution of these products are terminated effective immediately. We
will return to normal operation when the products will become useable."
The problem was first noticed on 15 Jan and, while EMOSS engineering
analysis has shown no change in the payloads operational profile that
would explain this problem (illustration 9 & 10) there might be a
correlation with the space environment because since 15 Jan (when the
problem was first noticed) there has been significant solar activity. As
of this writing, there are no plans to workaround this problem except
for continued monitoring of the payload and space environment in order
to determine a possible correlation. N16 AMSU-A1 is already categorized
as YELLOW in status because of other problems with this payload. See
illustrations 11 & 12 for imagery depiction and analysis from the user's
perspective.

The N16 AVHRR was generally nominal during the past reporting period
(illustration 13) although the scan motor current was slightly less
stable and slightly more elevated than it has been in recent weeks.
However, imagery analysis shows no indication that this small change in
operating profile has in any way impacted imagery and synch delta
remains very favorable (illustration 14). TCE24 remains off and rephase
enable operations continue once per orbit over the South Pole with no
actual MIRP rephasing occurring (and hence no frame losses) in the past
7 weeks.

The N16 TIP continues to show analog telemetry drift (as has been
discussed in this report numerous times). EMOSS engineers are starting
to assess the necessity of swapping TIP sides on N16 (as it was done for
N15 in April of 2003) sometime during the next several months (in
conjunction with factory personnel being on site for N18 sims and
operations). No determination or implementation date has yet been made.
Jon Woodward and Will Chadwick are POC's.

NOAA-17: The N17 AVHRR was generally stable although the scan motor
current continues to show slightly less stability than

desired (albeit nothing out of the range it has exhibited for the past
several months; see illustration 15). Conversely, the synch delta on N17
remains nominal (illustration 16) and there have been no reports of or
imagery degradation reported to EMOSS nor has any been observed by EMOSS
engineers. EMOSS is continuing to monitor this payload very closely.
Sally House is POC.

For the first time on this mission, CPU-1 had a single event upset
scrubbed in the "unknown" memory location (see CPU Errors graphic).
CPU-2 has had a number of such errors in the past and a TOAR had been
outstanding on N17 for that situation. No TOAR will be written on this
situation as it is understood and no operational corrections are
necessary.

NOAA-N: EMOSS personnel supported the 13 Jan Dress Rehearsal. All EMOSS
launch team personnel participated.

EMOSS engineer Jim Sheperd placed an ephemeris load file on the Goddard
computer IP# 128.183.208.98 for the Mar. 19, 2005 launch date. It was
placed in the Launch_Eph folder, with a file name of N18_078.EPH. The
checksum is **4A0D**. Load files for alternative launch dates have not
yet been generated but should be by next week.

One interesting aspect of launch date for N18 is that the spacecraft
separation will occur (for the first time) after the first ascending
node. Therefore, there may be a discrepancy in rev number count between
the USAF and NOAA. NASA launch managers are looking into this issue.

For a detailed calendar of events leading up to the 19 Mar launch go to
the following web address:
<https://www.qssmeds.com/~ddipaula/noaa-n_cal.htm>.

![](media/image1.png){width="7.996527777777778in"
height="6.071527777777778in"}

Illustration 1: N14 EPS Analysis

(Little difference from previous reports)

![](media/image2.png){width="7.996527777777778in"
height="6.071527777777778in"}

Illustration 2: N15 AMSU-B and AVHRR Analysis

(Generally nominal, with better stability in AMSU-B than previous
report)

![](media/image3.png){width="7.996527777777778in"
height="6.071527777777778in"}

Illustration 3: N15 HIRS Health Analysis

(Nothing new here)

![](media/image4.png){width="7.875in" height="6.0125in"}

1=AVHRR Anomaly Starts,

2=TCE24 (AVHRR heater & louver) turned off

3=TCE24 turned on,

4=TCE24 turned off & first indications of degraded HIRS quality

5=Significant & sustained decrease in HIRS quality,

6=HIRS Heater turned on

7=HIRS Heater Turned OFF

Illustration 4: N16 HIRS Situation Analysis

(Trend Data vs. incidents since before any problem existed)

![](media/image5.png){width="8.0in" height="6.113888888888889in"}

Illustration 5: N16 HIRS Health Analysis

(Heater turnoff appears to have adversely affected filter motor current)

![](media/image6.png){width="8.0in" height="6.049305555555556in"}

Illustration 6: N16 HIRS Health Analysis (cont)

(Heater turnon or turnoff appears to have not affected period monitor
minimally if at all)

![](media/image7.png){width="7.375in" height="3.7555555555555555in"}

HIRS Imagery (All Channels) With Heater ON (18 Jan 11:50Z)

![](media/image8.jpeg){width="7.373611111111111in"
height="3.751388888888889in"}

HIRS Imagery (All Channels) After Heater Turnoff (19 Jan 17:20Z)

Illustration 7: N16 HIRS Imagery Analysis (PIDES), Heater ON vs. OFF

(Not much difference from this point of view)

![](media/image9.png){width="5.999305555555556in"
height="6.959027777777778in"}

ILLUSTRATION 8: AMSU-A1 Imagery Analysis

(Note the degradation between the two images)

![](media/image10.png){width="7.877083333333333in"
height="5.975694444444445in"}

Illustration 9: N16 AMSU-A1 Health Analysis

(No change in operational profile leading up to or following the first
reported degradation on 15 Jan)

![](media/image11.png){width="7.996527777777778in"
height="6.061805555555556in"}

Illustration 10: N16 AMSU-A1 Health Analysis (cont)

(Also no change in operational profile leading up to or following

the first reported degradation on 15 Jan)

![](media/image12.png){width="8.0in" height="5.1194444444444445in"}

User interpretation: The above image of the NOAA-16 AMSU-A1 ch \# 9 and
10 along with the ATOVS retrieved temperature fields at 850 and 500 hPA.
As these images depict, this instrument is generating bad data (see
arrows in lower left image) which is within the expected normal limits
of performance. Consideration is being given to leaving the operational
NOAA-16 ATOVS A2 system running despite the fact that data collected for
weekly coefficient updating will also be suspect and care should be
exercised to exclude the affected time periods.

ILLUSTRATION 11: AMSU-A1 Imagery Analysis (User Perspective)

![](media/image13.png){width="7.626388888888889in" height="6.175in"}

User perspective: The above image shows the N16 AMSU-A ch \# 9 together
with the Superadiabatic Flag; the Superadiabatic Level and the Cloud
Mask (currently in NOHIRS mode because of engineering testing). This
image shows that at least for now, that if we do keep the N16 A2 system
running operationally that all of the affected soundings will be flagged
with the Superadiabatic Flags. This instance together with the \"bad
backup oscillator\" incident in Nov. \'03 represents the second
documented case in which AMSU-A has gone bad within the range of the
expected normal measurements and the ATOVS system has generated bad
products but managed to flag all of the

occurrences.

ILLUSTRATION 12: AMSU-A1 Imagery Analysis (User Perspective, cont)

![](media/image14.png){width="7.996527777777778in"
height="6.061805555555556in"}

ILLUSTRATION 13: N16 AVHRR Health Analysis

(Generally nominal although note the slight increases in recent days)

![](media/image15.png){width="7.625in" height="3.0in"}

![](media/image16.png){width="7.375in" height="5.375in"}

Illustration 4: N15 AVHRR Synch Delta Analysis

(Steady and nominal)

Illustration 7: N16 AVHRR Synch Delta & Imagery Analysis

(about as good as it gets)

ILLUSTRATION 14: N16 AVHRR Imagery vs. Synch Delta Analysis

(Looking very good)

![](media/image17.png){width="7.875in" height="5.954861111111111in"}

Illustration 8: N17 AVHRR Analysis

(Generally steady, especially last week but still some less than
desirable instability although within normal ranges)

ILLUSTRATION 15: N17 AVHRR Health Analysis

(Looking about the same as usual)

![](media/image18.wmf){width="7.186111111111111in"
height="5.623611111111111in"}

ILLUSTRATION 16: N17 AVHRR Synch Delta Analysis

(Looking good)

N17 CPU Single Event Upset Scrub Analysis

# Last week and Cumulative

![](media/image19.png){width="7.872916666666667in"
height="1.8215277777777779in"}

CPU-1 Unknown location was:
![](media/image20.png){width="2.8743055555555554in"
height="0.5416666666666666in"}

![](media/image21.wmf){width="7.377083333333333in" height="5.725in"}

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING January 14, 2005

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

  FRI. 01/07   -637 msec   +103 msec   -058 msec   +019 msec   -005 msec

  SAT. 01/08   -633 msec   +103 msec   -058 msec   +019 msec   -002 msec

  SUN. 01/09   -622 msec   +109 msec   -058 msec   +019 msec   -002 msec

  MON. 01/10   -640 msec   +110 msec   -062 msec   +020 msec   -003 msec

  TUE. 01/11   N/A         +108 msec   -061 msec   +020 msec   -003 msec

  WED. 01/12   -639 msec   +105 msec   -062 msec   +020 msec   -003 msec

  THU. 01/13   N/A         +106 msec   -063 msec   +025 msec   -001 msec
  ------------ ----------- ----------- ----------- ----------- -----------

EMOSS POC for this chart Jim Sheperd

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. Next +500 mS jump is expected on 1/30/05.

> 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/image22.png){width="6.502083333333333in"
height="3.611111111111111in"}

POES Engineering Contact List

[Government]{.underline}

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

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

Micky Fitzmaurice: NOAA, POES Bus, IJPS 301-817-4016

Nicolaie Todirita (Todi): NOAA Ground Systems 301-817-4229

[EMOSS-2 Contractor]{.underline}

Jeff Devine: EMOSS POES Lead 301-817-4020

Jim Walters: EMOSS, POES Payload Engineer 301-817-4033

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