**POLAR Spacecraft Status As of: Weds May 11 12:00 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 |         | ######  |
|          |        |        |        |         |         | 12May05 |
|          |        |        |        |         |         |  10:30Z |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | Slip    |
|          |        |        |        |         |         | due to  |
|          |        |        |        |         |         | winds   |
+----------+--------+--------+--------+---------+---------+---------+
| **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)  |        | XSU1    |         |         |
|          |        |        |        | TOAR    |         | Co      |
|          |        |        |        | 444     |         | mpleted |
|          |        |        |        |         |         | 14Apr05 |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO      | NO      | Dress   |
| VETO**   |        |        |        |         |         | r       |
|          |        |        |        |         |         | ehearse |
|          |        |        |        |         |         | #3      |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | Co      |
|          |        |        |        |         |         | mpleted |
|          |        |        |        |         |         | 9 May   |
|          |        |        |        |         |         | 05      |
+----------+--------+--------+--------+---------+---------+---------+
| *        | [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      | 2       | 1       |         |
| SIDE**   |        |        |        |         |         |         |
|          |        |        | (since | since   | Analog  |         |
|          |        |        | 4/     | 4/18/05 | telem   |         |
|          |        |        | 23/03) |         | d       |         |
|          |        |        |        |         | rifting |         |
|          |        |        | 3      |         |         |         |
|          |        |        | Ch     |         |         |         |
|          |        |        | annels |         |         |         |
|          |        |        | inop   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DTRs** | 3A, 4, | 1, 2B, | 1, 2,  | 1       | 1,2,3,4 | All     |
|          | 5B     | 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 |         |
|          |        |        |        | 4B STIP |         |         |
|          |        |        |        | only    |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | OFF    | INOP    | #2 ON   | #       |
|          |        |        |        |         |         | 1=137.1 |
| (APT     | 137.50 | Since  | (      | OFF     | 137.62  | MHZ     |
| data)    | MHZ    | 8      | 15Apr- | since   | MHZ     | #2=1    |
|          |        | /14/02 | 16May) | 1       |         | 37.9125 |
|          | Co     |        |        | 1/15/00 |         | MHZ     |
|          | nflict |        | Co     |         |         |         |
|          | with   |        | nflict |         |         |         |
|          | N15    |        | with   |         |         |         |
|          |        |        | 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 --    | STX-3   |
|          | HRPT;  | HRPT   | HRPT   | HRPT;   | HRPT    |         |
| #        |        |        |        |         |         | R       |
| 1=1698.0 | 2,3 -  | 2, 1   | 4-Pl   | 2--     | TOAR424 | eplaced |
| mhz      | Pl     | --     | ayback | Pl      | low     | at VAFB |
|          | ayback | Pl     |        | ayback; | power   |         |
| #        |        | ayback | 1,     |         |         |         |
| 2=1702.5 |        |        | 2,3-De | 4 --    | 2 & 4   |         |
| mhz      |        |        | graded | P       | P       |         |
|          |        |        |        | layback | layback |         |
| #        |        |        |        |         |         |         |
| 3=1707.0 |        |        |        | 3 low   | 1-      |         |
| mhz      |        |        |        | power   | Standby |         |
|          |        |        |        | unused  |         |         |
| #        |        |        |        |         | STX-1   |         |
| 4=2247.5 |        |        |        |         | output  |         |
| mhz      |        |        |        |         | power   |         |
|          |        |        |        |         | drop    |         |
|          |        |        |        |         | TOAR    |         |
|          |        |        |        |         | 443.    |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [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} |         |
| and CANT |        |        |        |         |         |         |
| angle,   | since  | Since  | Since  | Since   | Since   |         |
| charge & | 8      | 8      | 1      | 7/16/02 | 1/29/04 |         |
| V/T      | /31/04 | /21/03 | /25/01 |         |         |         |
| rates,   |        |        |        | Eclipse | Eclipse |         |
| eclipse  | E      | E      | Full   | all     | all     |         |
| states   | clipse | clipse | Sun    | year    | year    |         |
| and sun  | season | all    |        |         |         |         |
| angle)   | 21Apr  | year   | E      | Sun     | Sun     |         |
|          | -17Aug |        | clipse | Angle   | Angle   |         |
|          |        | Sun    | Season | 54      | at 69   |         |
|          | Batt   | angle  | starts |         |         |         |
|          | UVtrip | 44     | 21 May | Steady  | Uptrend |         |
|          | 7      |        |        | trend   | to 72   |         |
|          | /25/04 | up     | Sun    |         | at      |         |
|          |        | trend  | Angle  | Batts   |         |         |
|          | Sun    | to 52  | 22,    | 1-3=    | the end |         |
|          | Angle  | in     | up-    | LRC     | of May  |         |
|          | 27     | June   | trend  |         |         |         |
|          |        |        | to 32  | V/T=4/8 | Batts   |         |
|          | up to  | Batts  | in     |         | 1-3=    |         |
|          | 37     | 1-3=   | June   | SA      | LRC     |         |
|          | mi     | LRC    |        | CANT=22 |         |         |
|          | d-June |        | Batts  | degs    | V/T=    |         |
|          |        | Batts  | 1-3=   |         | 4/8     |         |
|          | Batts  | 1&3V/  | LRC    | SADPOS  |         |         |
|          | 1      | T=7/11 |        | timer   | SA      |         |
|          | &2=LRC |        | V      | in      | CANT=37 |         |
|          |        | Batt2  | /T=7/9 | creased | degs    |         |
|          | V/T=4  | V      |        | 5 Apr   |         |         |
|          |        | T=8/11 | SA     |         | SADPOS  |         |
|          | Shunt  |        | C      |         | timer   |         |
|          | de     | SS     | ANT=37 |         | in      |         |
|          | graded | t      | degs   |         | creased |         |
|          |        | rigger |        |         | 5 Apr   |         |
|          | SA     | =18.98 |        |         |         |         |
|          | C      |        |        |         |         |         |
|          | ANT=37 | Shunt  |        |         |         |         |
|          | degs   | De     |        |         |         |         |
|          |        | graded |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SA     |        |         |         |         |
|          |        | C      |        |         |         |         |
|          |        | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | INOP   | N      | Oper    | ###     | New     |
| *AVHRR** | ominal |        | ominal | ational | Nominal | br      |
|          |        | Scan   |        |         |         | ushless |
|          |        | motor  | Rare   | TCE24   | 3A-B    | scan    |
|          |        | s      | major  | OFF     | switch  | motors  |
|          |        | talled | scan   | 4/14/04 | enabled |         |
|          |        |        | motor  |         |         |         |
|          |        | 14 Apr | s      | Occ     |         |         |
|          |        | 04     | urges. | asional |         |         |
|          |        |        | Last   | Image   |         |         |
|          |        |        |        | Wave    |         |         |
|          |        |        | In     | p       |         |         |
|          |        |        | cident | atterns |         |         |
|          |        |        | 11     |         |         |         |
|          |        |        | /18/04 | Chan 3B |         |         |
|          |        |        |        | only.   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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.     |         |
|          |        |        | Record | PLLO    |         |         |
|          |        |        | low    | inop    |         |         |
|          |        |        | com    |         |         |         |
|          |        |        | ponent | Channel |         |         |
|          |        |        | temps  | 9-14    |         |         |
|          |        |        | re     | noise   |         |         |
|          |        |        | versed | i       |         |         |
|          |        |        | trend  | mproved |         |         |
|          |        |        |        | since   |         |         |
|          |        |        |        | 1/19    |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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 |         |         |
|          |        |        |        |         |         |         |
|          |        |        | IPD    |         |         |         |
|          |        |        | R      |         |         |         |
|          |        |        | eports |         |         |         |
|          |        |        | of     |         |         |         |
|          |        |        | de     |         |         |         |
|          |        |        | graded |         |         |         |
|          |        |        | data   |         |         |         |
|          |        |        | on     |         |         |         |
|          |        |        | Chan-3 |         |         |         |
|          |        |        | since  |         |         |         |
|          |        |        | 4/30   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ### HIRS | ON /   | N      | INOP   | D       | NOMINAL | ####    |
|          | INOP   | OMINAL |        | EGRADED |         | #### HI |
|          |        |        | Down   |         | 1 Pixel | RS-4 re |
|          | Turned | Opera  | graded | L       | cross   | placing |
|          | on     | tional | to RED | ongwave | track   |  HIRS-3 |
|          | 8      |        | status | channel | misal   |         |
|          | /30/04 | Occa   |        | imagery | ignment |         |
|          |        | sional | 19 Apr | i       | .       |         |
|          | For    | loss   | 05     | mproved |         |         |
|          | power  | of     |        | radi    |         |         |
|          | b      | Fwheel | TOAR   | ometric |         |         |
|          | alance | synch  | 445    | noise   |         |         |
|          |        |        | sub    | level   |         |         |
|          | Filter |        | mitted | is      |         |         |
|          | Wheel  |        |        | still   |         |         |
|          | turned |        | FW     | high    |         |         |
|          | OFF    |        | m      |         |         |         |
|          | 10/    |        | ode=Hi | TOAR    |         |         |
|          | 17/02. |        | Powr   | 441     |         |         |
|          |        |        |        | su      |         |         |
|          |        |        | FW     | bmitted |         |         |
|          |        |        | Heater | 11      |         |         |
|          |        |        | OFF    | Jan05   |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Fr     | *       |         |         |
|          |        |        | equent | **[Cons |         |         |
|          |        |        | Filter | idering |         |         |
|          |        |        |        | high    |         |         |
|          |        |        | Exces  | power   |         |         |
|          |        |        | sively | mode]{  |         |         |
|          |        |        | high   | .underl |         |         |
|          |        |        | FM     | ine}*** |         |         |
|          |        |        | temps  |         |         |         |
|          |        |        | and    | Occ     |         |         |
|          |        |        | cu     | asional |         |         |
|          |        |        | rrents | major   |         |         |
|          |        |        | co     | FM      |         |         |
|          |        |        | ntinue | surges, |         |         |
|          |        |        |        | most    |         |         |
|          |        |        |        | recent  |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | 12/9/04 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | R       |
|  MHS/MIU |        |        |        |         |         | eplaces |
|          |        |        |        |         |         | AMSUB   |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | ON /   | Opera  |        |         |         |         |
|          | INOP   | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | On For | Scan   |        |         |         |         |
|          | power  | motor  |        |         |         |         |
|          | b      | and    |        |         |         |         |
|          | alance | a      |        |         |         |         |
|          | Scan   | ntenna |        |         |         |         |
|          | Motor  | pr     |        |         |         |         |
|          | OFF    | oblems |        |         |         |         |
|          | 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      | S       |         |         |
|          |        |        | -Side, | witched | All AGC |         |
|          |        |        | AGC    | back to | Mode    |         |
|          |        |        | Mode   | mode AA |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Interm | 26Apr05 |         |         |
|          |        |        | ittent | 14:10Z  |         |         |
|          |        |        | fa     |         |         |         |
|          |        |        | ilures | A-side, |         |         |
|          |        |        | for    | AGC     |         |         |
|          |        |        | 243MHz | Mode    |         |         |
|          |        |        | A&B    |         |         |         |
|          |        |        |        | (B-side |         |         |
|          |        |        |        | in FG   |         |         |
|          |        |        |        | mode)   |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | 243 MHz |         |         |
|          |        |        |        | = INOP. |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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   |         |
|          |        | Grate  |        | D       | Mode    |         |
|          |        | motor  |        | egraded |         |         |
|          |        | sticks |        | Ozone   | Plan    |         |
|          |        |        |        | data    | sweep   |         |
|          |        | Flex   |        |         | mode    |         |
|          |        | memory |        | Backup  | S       |         |
|          |        | 3      |        | D       | tandard |         |
|          |        | (giant |        | iffuser | Ops     |         |
|          |        | step)  |        | inop    | Pr      |         |
|          |        | ops    |        |         | ocedure |         |
|          |        | sus    |        | Primary | change  |         |
|          |        | pended |        | D       |         |         |
|          |        | 1      |        | iffuser | s       |         |
|          |        | 2/2/03 |        | dep     | tarting |         |
|          |        |        |        | loyment | 17 May  |         |
|          |        | R      |        | problem |         |         |
|          |        | educed |        | TOAR    |         |         |
|          |        | oper   |        | 426     |         |         |
|          |        | ations |        |         |         |         |
|          |        |        |        | AMSU    |         |         |
|          |        |        |        | EMI     |         |         |
|          |        |        |        | causing |         |         |
|          |        |        |        | erratic |         |         |
|          |        |        |        | B       |         |         |
|          |        |        |        | ehavior |         |         |
|          |        |        |        | in PMT  |         |         |
|          |        |        |        | cathod, |         |         |
|          |        |        |        | range 3 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | N/A    | ON      | ON      |         |
| SADPOS** |        |        |        |         |         |         |
|          |        |        |        | Enabled | ENABLED |         |
|          |        |        |        | MFa     |         |         |
|          |        |        |        | ctor50% | Timer   |         |
|          |        |        |        |         | changed |         |
|          |        |        |        | Timer   | to 12   |         |
|          |        |        |        | changed | (from 8 |         |
|          |        |        |        | to 12   | mins 5  |         |
|          |        |        |        | (from 8 | Apr     |         |
|          |        |        |        | mins 5  |         |         |
|          |        |        |        | Apr     |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **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      |        | tuned  | 1/18/05 | no      |         |
|          | /25/04 |        | ON 17  |         | cor     |         |
|          | U      |        | Apr    |         | rective |         |
|          | Vtrip. |        | and    |         | action  |         |
|          |        |        | OFF on |         | po      |         |
|          |        |        | 18 Apr |         | ssible. |         |
|          |        |        |        |         |         |         |
|          |        |        | TCE2   |         | AMSU-A1 |         |
|          |        |        | 4L&25L |         | s       |         |
|          |        |        | (HIRS  |         | urvival |         |
|          |        |        | &      |         | heaters |         |
|          |        |        | AVHRR) |         | on      |         |
|          |        |        | failed |         | 1       |         |
|          |        |        | 5      |         | 0/29/03 |         |
|          |        |        | /13/98 |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | RCE    |         |         |         |
|          |        |        | ther   |         |         |         |
|          |        |        | mostat |         |         |         |
|          |        |        | failed |         |         |         |
|          |        |        | 5      |         |         |         |
|          |        |        | /13/98 |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
|          | *      | *      | *      | **N16** | **N17** | ### N   |
|          | *N12** | *N14** | *N15** |         |         | OAA-N18 |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12 There were no changes on N12 during the past reporting period.

NOAA-14: Spacecraft is operating nominally and power subsystem remains
stable and above safe state threshold values as the

long slow increase in percentage darkness time per orbit continues
through mid-June 05. Otherwise there were no changes to N14 during the
past reporting period.

NOAA-15: The N15 HIRS filter wheel remained at severely elevated (albeit
not record high) temperatures and currents last week although it did
remain generally stable. Imagery remains completely degraded, period
monitor values excessive and filter wheel synch always out of synch. No
further discussion has ensued regarding the possibility of toggling the
filter motor in the hope of breaking the filter wheel through whatever
is obstructing it. N15 HIRS remains red in status (inoperative) in high
power mode with heaters OFF. (See illustration 1).

NOAA remains concerned about the possible influence that the HIRS
situation will have on the spacecraft subsystem, notably AMSU's, and the
AVHRR (power was originally a concern as well but has proven to be a
non-issue). The N15 AVHRR scan motor current has shown
[some]{.underline} indications of less stable scan motor current and has
thermally been approaching record highs (and may even have actually
exceeded record highs if one takes into consideration the drop in values
that followed the N15 TIP swap). In addition, synch delta has continued
to slowly increase and is running at its highest level this year
(although it remains well below MIRP rephase thresholds) while imagery
still appears to be nominal (illustrations 2-4). The N15 AMSU-B also
appears to be performing in a slightly less stable manner but its scan
motor currents and temps remains within nominal values (illustration 5).
The two other AMSU's (A1 and 2) have been stable and nominal throughout
the past reporting period (illustration 6).

The N15 eclipse season is expected to start within the next 2 weeks,
EMOSS engineer Carl Gliniak has generated a

floor procedure in preparation for this event. No reconfigurations are
expected although additional assessments will be

performed as the spacecraft progresses through this eclipse season.

N15 VTX-1 (APT data) remains turned off due through 16 May to an RF
conflict with N12.

NOAA-16: The N16 AVHRR scan motor current and especially synch delta
continued to degrade over the past week. Several

confirmed and several other probable (but unconfirmed) MIRP rephases
have occurred in recent days as the synch delta has degraded.
Conversely, even with relatively high scan motor currents, the N16 AVHRR
imagery appears to be relatively nominal with the only degradation being
the single frames of lost data that occurs when the MIRP rephases. Even
wave patterns, which almost always occurred at the scan motor currents
at recent levels, are not apparent in the imagery reviewed by EMOSS
engineers. Also on the favorable side are the AVHRR scan motor temps
which have been nominal and stable throughout 2005 even though the AVHRR
TCE has been powered off during that entire period. (See illustrations
7-10.)

The N16 HIRS was nominal and stable last week (illustration 11) as were
the N16 AMSU's and ADACS subsystem.

NOAA-17: The N17 AVHRR scan motor current and temps were both very
stable during the past week while synch delta and

AVHRR component temps were very stable and imagery remained nominal
(illustrations 12 and 13). The two remaining AMSU's (A2 and B) were also
nominal during the same time period (illustration 14). The N17 HIRS was
also generally stable during the past week although its period monitor
appeared to be slightly less stable than the week before. However, in
analyzing this period monitor value over the course of the mission, this
slight reduction of stability appears to be well within nominal
operating ranges (illustrations 15 and 16). NOTE: THE ILLUSTRATIONS FOR
N17 DATA INCLUDE MERGED FILES OF ABE AND GRETA DATA. AS THE
ILLUSTRATIONS SHOW, THEY APPEAR TO MATCH UP PERFECTLY.

At the request of the Polar Program Office EMOSS engineer Jim Walters is
overseeing a change in the N17 SBUV standard operating procedure. The
NOAA-17 SBUV currently spends 14 orbits in sweep mode every Tuesday.
This will be reduced to 4 orbits in sweep mode. These orbits should not
cross over the CONUS, or at least not do so in daylight. The SOMS
procedure SBSWMODE will be run every Tuesday and the wait time in this
procedure must be changed to 24240 seconds. These schedule changes are
intended to be permanent and will be implemented beginning 17 May 05.

NOAA-N: EMOSS Supported the final (#3) dress rehearsal is scheduled on 9
May and is a go for launch. The launch slipped 24

hours from to 12 May (same time, approx 10:30Z) because of high winds
with at the launch site (Vandenberg). The EMOSS on-console support
schedule for launch and OV are included at the back of this report.

MISC: Integrating ABE into the Greta process continues to make progress
and meet with difficulty at the same time. The

primary problem is one of "results success/failure variability" when
running "fixed" scripts and inputs. Jeff Devine is EMOSS POC for this
effort.

![](media/image1.png){width="8.25in" height="6.456944444444445in"}

Illustration 1: N15 HIRS Health Analysis:

(Inoperative and no improvement)

![](media/image2.png){width="8.25in" height="6.204861111111111in"}

Illustration 2: N15 AVHRR Analysis

(Looking for cause effects from HIRS anomaly, none readily apparent, but
the small increase on JDAY 125 is something to keep an eye on.)

![](media/image3.png){width="8.125in" height="6.111111111111111in"}

Illustration 3: N15 AVHRR Analysis in perspective

(Scan motor current rise not especially significant from a historical
perspective but the temps are approaching all time highs and, if the
drop caused by the TIP swap in Apr 2003 is taken in to account, may even
be at all time highs.)

![](media/image4.png){width="8.125in" height="6.366666666666666in"}

Illustration 4: N15 AVHRR Imagery and Synch Delta Analysis

(Looking for cause effects from HIRS anomaly, none readily apparent but
there is a non-auspicious trend that seems to be developing on the synch
delta value that may require further attention in the weeks ahead.)

![](media/image5.png){width="8.25in" height="6.204861111111111in"}

Illustration 5: N15 AMSU-B Analysis

(Looking for cause effects from HIRS anomaly, none readily apparent
although the AMSU-B scan motor current continues showing some minor
instabilities that are well within normal operating profiles.)

![](media/image6.png){width="8.25in" height="6.423611111111111in"}

Illustration 6: N15 AMSU-A1and 2 Analysis

(Looking for cause effects from HIRS anomaly, none readily apparent, in
fact, power usage, as measured by bus current appears slightly lower
since the HIRS started drawing additional current.)

![](media/image7.png){width="8.375in" height="6.298611111111111in"}

Illustration 7: N16 AVHRR Health

(The scan motor current has been better and its not trending in a
favorable direction.)

![](media/image8.png){width="7.875in" height="7.698611111111111in"}

Illustration 8: N16 AVHRR Imagery Analysis

(Imagery looks OK today, notwithstanding the elevated scan motor
current, wave patterns have not been readily apparent from an EMOSS
perspective of imagery analysis.

![](media/image9.png){width="8.25in" height="6.204861111111111in"}

Illustration 9: N16 Synch Delta Analysis

(Definitely not a favorable trend)

![](media/image10.png){width="8.125in" height="7.116666666666666in"}

Illustration 10: N16 Imagery Analysis relative to synch delta

(Also, definitely not a favorable trend. Not all rephases are
"detectable" relative to the EMOSS process. Use of GAC imagery that
includes South Polar Region provides the best evidence of rephases
occurring.)

![](media/image11.png){width="8.375in" height="6.520833333333333in"}

Illustration 11: N16 HIRS Analysis

(Stable.)

![](media/image12.png){width="8.25in" height="6.204861111111111in"}

Illustration 12: N17 AVHRR Analysis

(Stable and nominal note the inclusion of ABE data into this primarily
Greta data graph.)

![](media/image13.png){width="8.0in" height="6.188194444444444in"}

Illustration 14: N17 Synch Delta Analysis

(Generally stable and nominal)

Illustration 13: N17 Synch Delta Analysis

(Generally stable and nominal)

![](media/image14.png){width="8.25in" height="6.524305555555555in"}

Illustration 14: N17 AMSU-A2 and B Health Analysis

(Stable and nominal. Note the use of ABE data within this primarily
Greta data graph.)

![](media/image15.png){width="8.25in" height="6.507638888888889in"}

# Illustration 15: N17 HIRS Health Analysis

# (Nominal and generally stable except for the Period Monitor value which appears a little less stable than last week.) 

# 

![](media/image16.png){width="8.25in" height="6.507638888888889in"}

# Illustration 16: N17 HIRS Period Monitor in perspective

(Well within historical norms.)

# N17 MEMORY SCRUB REPORT

# Last week 

![](media/image17.png){width="7.436111111111111in"
height="1.6041666666666667in"}

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING May 6, 2005

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

  FRI. 04/29   N/A         +177 msec   -153 msec   +083 msec   +034 msec

  SAT. 04/03   +715 msec   +180 msec   -154 msec   +084 msec   +034 msec

  SUN. 05/01   +716 msec   +179 msec   -156 msec   +084 msec   +033 msec

  MON. 05/02   +719 msec   +174 msec   -157 msec   +084 msec   +035 msec

  TUE. 05/03   N/A         +175 msec   -157 msec   +084 msec   +036 msec

  WED. 05/04   +717 msec   +177 msec   -160 msec   +084 msec   +036 msec

  THU. 05/05   N/A         +177 msec   -159 msec   +088 msec   +037 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..

> 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/image18.png){width="7.871527777777778in"
height="4.170138888888889in"}

EMOSS ON Console Schedule for N18 Launch and OV

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 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 301-817-4026

William Chadwick EMOSS, POES Comm and DHS 301-817-4015