**POLAR Spacecraft Status As of: Weds July 6, 16:00 EST**

*(changes from last week in bold border)*

+----------+--------+--------+--------+---------+---------+---------+
| **Subs   | **NOAA | **NOAA | **NOAA | **NOA   | ##### N | ##### N |
| ystem/** | -12D** | -14J** | -15K** | A-16L** | OAA-17M | OAA-18N |
|          |        |        |        |         |         |         |
| **Com    | AM:    | AM:    | AM:    | PM:     | AM:     | OV PM;  |
| ponent** | 1      | 2      | 1      | 1441=AN | 2225=AN | 1       |
|          | 651=AN | 039=AN | 806=AN |         |         | 4:00=AN |
|          |        |        |        | GAC&LAC | GAC&LAC |         |
|          | STIP   | STIP   | GAC    | data    | data    | APT/H   |
|          | data   | data   | data   |         |         | RPT/GAC |
|          | only   | only   | only   |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **LA     | 05     | 12     | 05     | 0       | 6/24/02 | ##      |
| UNCHED** | /14/91 | /30/94 | /13/98 | 9/21/00 |         | ##### 5 |
|          |        |        |        |         |         | /20/05  |
+----------+--------+--------+--------+---------+---------+---------+
| **CNTL   | OBP2   | OBP2   | OBP2   | OBP2    | OBP2    | OBP2    |
| OBP**    |        |        |        |         |         |         |
|          |        | OBP1   |        |         |         |         |
|          |        | inope  |        |         |         |         |
|          |        | rative |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS**  | B-BUS  | B-BUS  | B-BUS  | B-BUS   | B-BUS   | B-BUS   |
|          |        |        |        |         |         |         |
|          | XSU-1  | XSU2   | XSU-1  | XSU-1   | XSU-1   | XSU-1   |
|          |        | (XSU1  |        |         |         |         |
|          |        | inop)  |        | XSU1    |         |         |
|          |        |        |        | TOAR    |         |         |
|          |        |        |        | 444     |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO      | NO      | NO      |
| VETO**   |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | [N     | [N     | [N     | #####   | #####   | [       |
| *ADACS** | ominal | ominal | ominal | # [Nomi | # [Nomi | Nominal |
|          | Mode]  | Mode]  | Mode]  | nal Mod | nal Mod | Mod     |
| X=Yaw    | {.unde | {.unde | {.unde | e]{.und | e]{.und | e]{.und |
|          | rline} | rline} | rline} | erline} | erline} | erline} |
| Y=Roll   |        |        |        |         |         |         |
|          | RG     | Rgm    | Rg     | Rgmode= | Rgmode= | Gyro-A  |
| Z=Pitch  | mode=M | ode=Di | mode=M | Monitor | Monitor | MIMU-2  |
|          | onitor | sabled | onitor |         |         |         |
|          |        |        |        | Gyro-3  | Gyro-3  | Z-wheel |
|          | Gyro   | Gyro   | Gyro-3 | Off     | Off     | -Pitch  |
|          | cha    | cha    | Off    | 6/10/04 | 6/10/04 |         |
|          | ns=XYZ | ns=XYZ | 6      |         |         | TOAR    |
|          |        |        | /26/00 | Gyro    | Gyro    | 447     |
|          |        | SS     | Gyro   | ch      | ch      |         |
|          |        | check  | cha    | ans=AAA | ans=AAB |         |
|          |        | Di     | ns=AAB |         |         |         |
|          |        | sabled |        |         | Gyro-2  |         |
|          |        | when   | N2 Low |         | current |         |
|          |        | mo     | PSI    |         | spike   |         |
|          |        | de=YGC | i      |         | under   |         |
|          |        |        | nvalid |         | invest  |         |
|          |        |        |        |         | igation |         |
+----------+--------+--------+--------+---------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI     | PRI     | PRI     |
|          |        |        |        |         |         |         |
|          | BU     | BU     | daily  | Daily   | Daily   | 23      |
|          | random | random | bias   | Bias    | Bias    | May05   |
|          | e      | e      | -8 mS  | --5.5   | --3 mS  |         |
|          | nables | nables |        | mS      |         |         |
|          |        | daily  | +100   |         |         |         |
|          | daily  | bia    | mS     | -100 mS |         |         |
|          | bi     | s--7.0 | 3      | 31Aug04 |         |         |
|          | as+6.5 | mS     | 1Aug04 |         |         |         |
|          | mS     |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **CLOCK  | 2      | 2      | 2      | 2       | 2       | 2       |
| DIV**    |        |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **MIRP** | Ex     | Ex     | Ex     | E       | E       | E       |
|          | ternal | ternal | ternal | xternal | xternal | xternal |
|          | Synch  | Synch  | Synch  | Sync    | Sync    | Synch   |
|          |        |        | R      |         |         |         |
|          | R      | R      | ephase | Rephase | Rephase | Rephase |
|          | ephase | ephase | 0730   | each    | Enabled | Enabled |
|          | E      | 0730   | daily  | orbit   |         |         |
|          | nabled | Daily  |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **TIP    | 1      | 1      | 2      | 2       | 1       | 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 | 1,      |
|          | 5B     | 5      | 3, 4   | ,2,3,4A |         | 2,3,4,5 |
|          |        | Safe   | Saf    |         | Safes   |         |
|          | Saf    | state- | estate | Sa      | tate=1B | All     |
|          | estate | 1B     | 1B EOT | festate |         | solid   |
|          | 5B     |        |        | 3A      | D       | state   |
|          |        |        |        |         | TR2-SSR | d       |
|          |        |        |        | 4B STIP |         | igital. |
|          |        |        |        | only    |         |         |
|          |        |        |        |         |         | Current |
|          |        |        |        |         |         | spikes  |
|          |        |        |        |         |         | under   |
|          |        |        |        |         |         | invest  |
|          |        |        |        |         |         | igation |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        |         |         | 450     |
+----------+--------+--------+--------+---------+---------+---------+
| **VTX**  | #1 ON  | OFF    | #1 ON  | INOP    | #2 ON   | #2 ON   |
|          |        |        |        |         |         |         |
| (APT     | 137.50 | Since  | 137.50 | OFF     | 137.62  | 1       |
| data)    | MHZ    | 8      | MHZ    | since   | MHZ     | 37.9125 |
|          |        | /14/02 |        | 1       |         | MHZ     |
|          |        |        |        | 1/15/00 | Powered |         |
|          |        |        |        |         | off     |         |
|          |        |        |        |         | over    |         |
|          |        |        |        |         | CDA's   |         |
|          |        |        |        |         | 3-5 Jul |         |
+----------+--------+--------+--------+---------+---------+---------+
| **BTX**  | #1     | #2     | #1     | OFF     | ######  | #2      |
|          |        |        |        |         | # #2 ON |         |
|          | 136.77 | 137.77 | 137.35 | Since   |         | 137.77  |
|          | MHZ    | MHZ    | MHZ    | 30May05 | 137.77  | MHZ     |
|          |        |        |        |         | MHZ     |         |
+----------+--------+--------+--------+---------+---------+---------+
| **STX**  | 1 --   | 3 --   | 2-Omni | 1 --    | 3 --    | 3 -     |
|          | HRPT;  | HRPT   | HRPT   | HRPT;   | HRPT    | HRPT    |
| #        |        |        |        |         |         |         |
| 1=1698.0 | 2,3 -  | 2, 1   | Power  | 2--     | TOAR424 | 1&2     |
| mhz      | Pl     | --     | drop   | Pl      | low     | P       |
|          | ayback | Pl     |        | ayback; | power   | layback |
| #        |        | ayback | TOAR   |         |         |         |
| 2=1702.5 |        |        | 446    | 4 --    | 2 & 4   | STX1&3  |
| mhz      |        |        |        | P       | P       | swap    |
|          |        |        | 4-Pl   | layback | layback | assi    |
| #        |        |        | ayback |         |         | gnments |
| 3=1707.0 |        |        |        | 3 low   | 1-      | o       |
| mhz      |        |        | 1,     | power   | Standby | ccurred |
|          |        |        | 2,3-De | unused  |         | 28June  |
| #        |        |        | graded |         | STX-1   |         |
| 4=2247.5 |        |        |        |         | output  | 4-      |
| mhz      |        |        |        |         | power   | Standby |
|          |        |        |        |         | drop    |         |
|          |        |        |        |         | TOAR    |         |
|          |        |        |        |         | 443.    |         |
+----------+--------+--------+--------+---------+---------+---------+
| #        | [Ar    | [Array | [Array | [Array  | [Array  | [Array  |
| ## POWER | rayOff | Off    | Off    | Off     | Off.    | Off.    |
|          | +60]   | -55]   | -45]   | -4      | --4     | -4      |
| (Array   | {.unde | {.unde | {.unde | 0]{.und | 0]{.und | 0]{.und |
| offset   | rline} | rline} | rline} | erline} | erline} | erline} |
| and CANT |        |        |        |         |         |         |
| angle,   | since  | Since  | Since  | Since   | Since   | [S]{.   |
| charge & | 6      | 8      | 1      | 7/16/02 | 1/29/04 | underli |
| V/T      | /23/04 | /21/03 | /25/01 |         |         | ne}ince |
| rates,   |        |        |        | Eclipse | Eclipse | 6/6/05  |
| eclipse  | E      | E      | E      | all     | all     |         |
| states   | clipse | clipse | clipse | year    | year    | Eclipse |
| and sun  | season | all    | Season |         |         | all     |
| angle)   | 21Apr  | year   |        | Sun     | Sun     | year    |
|          | -17Aug |        | 16     | Angle   | Angle   |         |
|          |        | Sun    | May-23 | 58      | at 70   | Batts   |
|          | Sun    | angle  | Jul    |         |         | 1-3=LRC |
|          | Angle  | 51     |        | Start   | Steady  |         |
|          | 37     |        | Sun    | do      | trend   | Batts   |
|          | start  | Steady | Angle  | wntrend |         | 1-3     |
|          | dow    | trend  | 30     | to 41   | Batts   | V/T=4/8 |
|          | ntrend |        | dow    | on 30   | 1-3=    |         |
|          | to 12  | Batts  | ntrend | Oct 05  | LRC     | SA      |
|          | m      | 1-3=   | to 2   |         |         | CANT=22 |
|          | id-Oct | LRC    | degs   | Batts   | V/T=    |         |
|          | 05     |        | on 10  | 1-3=    | 4/8     | PSSS    |
|          |        | Batts  | Oct 05 | LRC     |         | enabled |
|          | Batts  | 1&3V/  |        |         | SA      | 30May   |
|          | 1      | T=7/11 | Batts  | V/T=4/8 | CANT=37 |         |
|          | &2=LRC |        | 1-3=   |         | degs    |         |
|          |        | Batt2  | LRC    | SA      |         |         |
|          | V/T=4  | V      |        | CANT=22 |         |         |
|          |        | T=8/11 | V      | degs    |         |         |
|          | Shunt  |        | /T=7/9 |         |         |         |
|          | de     | SS     |        |         |         |         |
|          | graded | t      | SA     |         |         |         |
|          |        | rigger | C      |         |         |         |
|          | SA     | =18.98 | ANT=37 |         |         |         |
|          | C      |        | degs   |         |         |         |
|          | ANT=37 | Shunt  |        |         |         |         |
|          | degs   | De     |        |         |         |         |
|          |        | graded |        |         |         |         |
|          |        |        |        |         |         |         |
|          |        | SA     |        |         |         |         |
|          |        | C      |        |         |         |         |
|          |        | ANT=22 |        |         |         |         |
|          |        | degs   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| *        | N      | INOP   | N      | Oper    | ###     | Nominal |
| *AVHRR** | ominal |        | ominal | ational | Nominal |         |
|          |        | Scan   |        |         |         | 3A-B    |
|          |        | motor  | Rare   | TCE24   | 3A-B    | switch  |
|          |        | s      | major  | OFF     | switch  | Enabled |
|          |        | talled | scan   | 4/14/04 | enabled |         |
|          |        |        | motor  |         |         | 6/      |
|          |        | 14 Apr | s      | Bar     |         | 23/2005 |
|          |        | 04     | urges. | coded   |         |         |
|          |        |        | Last   | imagery |         |         |
|          |        |        |        | typical |         |         |
|          |        |        | In     | since   |         |         |
|          |        |        | cident | 2       |         |         |
|          |        |        | 11     | 9June05 |         |         |
|          |        |        | /18/04 |         |         |         |
|          |        |        |        | Channel |         |         |
|          |        |        |        | 3B      |         |         |
|          |        |        |        | only.   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | Opera  | Oper    | O       | Nominal |
| MSU-A1** |        |        | tional | ational | FF/INOP |         |
|          |        |        |        |         |         | Space   |
|          |        |        | Ch14   | Primary | Since   | view 1  |
|          |        |        | inope  | PLLO    | 1       |         |
|          |        |        | rative | chans   | 0/30/03 | Since   |
|          |        |        |        | 9-14    |         | 6/7/05  |
|          |        |        | Ch11   | bias    | S       |         |
|          |        |        | inope  | shift.  | urvival |         |
|          |        |        | rative |         | heat    |         |
|          |        |        |        | Backup  | on.     |         |
|          |        |        |        | PLLO    |         |         |
|          |        |        |        | inop.   |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | Channel |         |         |
|          |        |        |        | 9-14    |         |         |
|          |        |        |        | noise   |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **A      |        |        | N      | Nominal | Nominal | Nominal |
| MSU-A2** |        |        | ominal |         |         |         |
|          |        |        |        | Space   |         | Space   |
|          |        |        |        | Pos     |         | view-2  |
|          |        |        |        | ition-2 |         |         |
|          |        |        |        |         |         | since   |
|          |        |        |        |         |         | 6/08/05 |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | 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 | OF     | N      | IN     | Oper    | NOMINAL | ####    |
|          | F/Inop | OMINAL | PROVED | ational |         | #### ON |
|          |        |        |        |         | 1 Pixel |         |
|          | Turned | Opera  | Up     | High    | cross   | ####    |
|          | off    | tional | graded | levels  | track   | #### TO |
|          | 6      |        | to     | of      | misal   | AR 448  |
|          | /23/05 | Occa   | Yellow | imagery | ignment |         |
|          |        | sional | status | radi    | .       | ####### |
|          | For    | loss   |        | ometric |         | # Noise |
|          | power  | of     | 16 May | noise   |         |  in lon |
|          | b      | Fwheel | 05     |         |         | g wave  |
|          | alance | synch  |        | TOAR    |         |         |
|          |        |        | FW     | 441     |         | ##      |
|          | Filter |        | Abrupt | open    |         | ######  |
|          | Wheel  |        | return |         |         | channel |
|          | turned |        | to     | Occ     |         | s 1-12. |
|          | OFF    |        | nomial | asional |         |         |
|          | 10/    |        | at     | major   |         | Some    |
|          | 17/02. |        | 09:00Z | FM      |         | impr    |
|          |        |        |        | surges, |         | ovement |
|          |        |        | TOAR   | most    |         | re      |
|          |        |        | 445    | recent  |         | ported. |
|          |        |        | open   |         |         | Invest  |
|          |        |        |        | 12/9/04 |         | igation |
|          |        |        | FW     |         |         | ongoing |
|          |        |        | m      |         |         |         |
|          |        |        | ode=Hi |         |         | ##      |
|          |        |        | Powr   |         |         | ######  |
|          |        |        |        |         |         |         |
|          |        |        | FW     |         |         |         |
|          |        |        | Heater |         |         |         |
|          |        |        | OFF    |         |         |         |
|          |        |        |        |         |         |         |
|          |        |        | Fr     |         |         |         |
|          |        |        | equent |         |         |         |
|          |        |        | Filter |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| ###      |        |        |        |         |         | Nominal |
|  MHS/MIU |        |        |        |         |         |         |
|          |        |        |        |         |         | Final   |
|          |        |        |        |         |         | config  |
|          |        |        |        |         |         | on 6/4  |
|          |        |        |        |         |         | Now     |
|          |        |        |        |         |         | Oper    |
|          |        |        |        |         |         | ational |
+----------+--------+--------+--------+---------+---------+---------+
| **MSU**  | OF     | Opera  |        |         |         |         |
|          | F/Inop | tional |        |         |         |         |
|          |        |        |        |         |         |         |
|          | Turned | Scan   |        |         |         |         |
|          | off    | motor  |        |         |         |         |
|          | for    | and    |        |         |         |         |
|          | power  | a      |        |         |         |         |
|          | b      | ntenna |        |         |         |         |
|          | alance | pr     |        |         |         |         |
|          |        | oblems |        |         |         |         |
|          | 6      |        |        |         |         |         |
|          | /23/05 |        |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SSU**  |        | N      |        |         |         |         |
|          |        | ominal |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **DCS**  | N      | N      | N      | Nominal | Nominal | ON      |
|          | ominal | ominal | ominal |         |         |         |
|          |        |        |        |         |         | DRU's   |
|          |        |        |        |         |         | 1-7 On  |
|          |        |        |        |         |         |         |
|          |        |        |        |         |         | DRU-8   |
|          |        |        |        |         |         | TOAR    |
|          |        |        |        |         |         | 449     |
|          |        |        |        |         |         | turned  |
|          |        |        |        |         |         | off     |
|          |        |        |        |         |         | 6/13    |
+----------+--------+--------+--------+---------+---------+---------+
| **SARR** |        | N      | Opera  | Oper    | Nominal | ON      |
|          |        | ominal | tional | ational |         |         |
|          |        |        |        |         | A-side  | A-Side  |
|          |        |        | A      | S       |         |         |
|          |        |        | -Side, | witched | All AGC | A       |
|          |        |        | AGC    | back to | Mode    | GC-mode |
|          |        |        | Mode   | mode AA |         |         |
|          |        |        |        |         |         | (cor    |
|          |        |        | Interm | 26Apr05 |         | rection |
|          |        |        | ittent | 14:10Z  |         | from    |
|          |        |        | fa     |         |         | last    |
|          |        |        | ilures | A-side, |         | week)   |
|          |        |        | for    | AGC     |         |         |
|          |        |        | 243MHz | Mode    |         | Since   |
|          |        |        | A&B    |         |         | 27 June |
|          |        |        |        | (B-side |         |         |
|          |        |        |        | in FG   |         |         |
|          |        |        |        | mode)   |         |         |
|          |        |        |        |         |         |         |
|          |        |        |        | 243 MHz |         |         |
|          |        |        |        | = INOP. |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SARP** |        | OFF    | N      | Nominal | Nominal | ON      |
|          |        |        | ominal |         |         |         |
|          |        | Power  |        | RCVR    |         | A-side  |
|          |        | F      | RCVR   | B/W = 2 |         | 23 May  |
|          |        | ailure | B/W =  |         |         |         |
|          |        |        | 2      |         |         | All     |
|          |        |        |        |         |         | DRU's   |
|          |        |        |        |         |         | on      |
+----------+--------+--------+--------+---------+---------+---------+
| **SEM**  | ON/N   | Opera  | N      | Nominal | Nominal | ON      |
|          | ominal | tional | ominal |         |         |         |
|          |        |        |        | E-CDEM  | E-CDEM  | Turned  |
|          | Turned | El     | E      | -HVPS=5 | -HVPS=2 | on      |
|          | on     | ec-CH- | -CDEM- |         |         |         |
|          | 8      | HVPS=0 | HVPS=2 | P-CDEM  | P-CDEM  | 6 June  |
|          | /30/04 |        |        | -HVPS=4 | -HVPS=3 | at      |
|          |        | Pr     | P      |         |         | 14:05z  |
|          | El     | ot-CH- | -CDEM- |         |         |         |
|          | ec-CH- | HVPS=0 | HVPS=0 |         |         |         |
|          | HVPS=4 |        |        |         |         |         |
|          |        | 1 of 4 |        |         |         |         |
|          | Pr     | T      |        |         |         |         |
|          | ot-CH- | scopes |        |         |         |         |
|          | HVPS=0 | inop   |        |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **SBUV** |        | De     |        | Oper    | Nominal | ON      |
|          |        | graded |        | ational |         |         |
|          |        |        |        |         | Anode   | since   |
|          |        | Grate  |        | D       | Mode    | 27 May  |
|          |        | motor  |        | egraded |         |         |
|          |        | sticks |        | Ozone   | Plan    | Co      |
|          |        |        |        | data    | sweep   | mmanded |
|          |        | Flex   |        |         | mode    | to      |
|          |        | memory |        | Backup  | S       | Cathode |
|          |        | 3      |        | D       | tandard | mode    |
|          |        | (giant |        | iffuser | Ops     |         |
|          |        | step)  |        | inop    | Pr      | 5 July  |
|          |        | ops    |        |         | ocedure | 17:15z  |
|          |        | sus    |        | Primary | change  |         |
|          |        | pended |        | D       |         | Back to |
|          |        | 1      |        | iffuser | s       | anode   |
|          |        | 2/2/03 |        | dep     | tarting | mode 6  |
|          |        |        |        | loyment | 17 May  | July    |
|          |        | R      |        | problem |         | 13:30z  |
|          |        | educed |        | TOAR    |         |         |
|          |        | oper   |        | 426     |         | OV      |
|          |        | ations |        |         |         | testing |
|          |        |        |        | AMSU    |         | co      |
|          |        |        |        | EMI     |         | ntinues |
|          |        |        |        | causing |         |         |
|          |        |        |        | erratic |         |         |
|          |        |        |        | B       |         |         |
|          |        |        |        | ehavior |         |         |
|          |        |        |        | in PMT  |         |         |
|          |        |        |        | cathod, |         |         |
|          |        |        |        | range 3 |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **       |        |        | N/A    | ON      | ON      | ON      |
| SADPOS** |        |        |        |         |         |         |
|          |        |        |        | Enabled | ENABLED | Enabled |
|          |        |        |        | MFa     |         |         |
|          |        |        |        | ctor50% | Timer = |         |
|          |        |        |        |         | 12mins  |         |
|          |        |        |        | Timer = |         |         |
|          |        |        |        | 12 mins |         |         |
+----------+--------+--------+--------+---------+---------+---------+
| **T      | N      | N      | TCE26  | Nominal | TCE3H   | All     |
| HERMAL** | ominal | ominal | & 15H  |         | Batt 2A | TCE's   |
|          |        |        |        | TCE24   | heater  | active  |
| Heaters, | TCE's  |        | Telem  | OFF     | failed  |         |
| louvers  | back   |        | i      | 4/14    | 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** | ### N18 |
|          | *N12** | *N14** | *N15** |         |         |         |
+----------+--------+--------+--------+---------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-12 The N12 battery's maximum discharge voltage began to slowly
trend upward (exiting eclipse at approximately 19.7

volts) during the past week in conjunction with the start of its eclipse
season waning. Shunts also improved over past weeks (from a workload
perspective) although as eclipse season continues to wind down
additional loading will be necessary to maintain these reduced shunt
workloads. On the other hand, battery temps remained relatively elevated
(averaging 10.5 degs) during the past week. Additional reconfigurations
are anticipated for the N12 power subsystem in the coming weeks
although, other than turning HIRS and MSU back on, the specific
operations are not yet defined. Carl Gliniak is EMOSS POC for this
situation.

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

percentage darkness time per orbit has stabilize at or slightly below
20% darkness per orbit which will be sustained for the remainder of the
year. Otherwise there were no changes to N14 during the past reporting
period.

NOAA-15: The N15 AMSU's were all generally stable and nominal during the
past week (illustration 1) including the AMSU-B which quickly recovered
from a scan motor current surge the previous week. The N15 AVHRR and the
HIRS were also stable and nominal throughout the week (illustration 2)
with the AVHRR scan motor current dropping abruptly several mAmps on 5
July (typically a positive development). N15 continues progressing
nominally through its eclipse season which recently peaked and is now
waning (illustration 3). No power subsystem reconfigurations appear even
remotely necessary. There has been no change to the STX-2 situation on
N15 which experienced a significant drop on 27 May. The transmitter
continues to transmit HRPT data at approximately 5.6 watts down from the
previously nominal 7.5 watts. EMOSS engineers have seen no indication of
HRPT imagery degradation as a result of this event nor have any HRPT
user complaints been received.

NOAA-16: The N16 AVHRR scan motor current continued its slow increase
into higher mean values for the 12th week in a row

(illustration 4) and is now operating within the threshold where bar
coded imagery appears. In contrast, the synch delta values have actually
started to [slightly]{.underline} improve, that is they are not always
pegged as they were last week (illustration 5) although they remain far
from nominal at this time. Bar codes started to appear on HRPT, GAC and
LAC images starting on 29 June and, with each passing day, have become
more prevalent (illustration 6 & 7). At the present time almost all N16
AVHRR images contain at least partial bar codes on them and in many
cases it is continuous. In addition, AVHRR temperatures remain nominal
and the TCE's that control AVHRR temperatures remain turned off,
primarily to keep the AVHRR cooler. On the positive side, the AVHRR
situation does not seem to have influenced the N16 HIRS in any way
(illustration 8) contrary to what occurred the previous time that the
AVHRR was anomalous. Although there have been spurious reports of
degraded N16 HIRS products during the past several months, from an
engineering point of view the N16 HIRS has been stable and nominal
during that entire period.

NOAA-17: The remaining two operational AMSU's, the AVHRR and the HIRS on
N17 were nominal during the past week

(illustrations 9 -11). Gyro-2 spin motor current was relatively stable
at its new higher level although it did show some slight signs of less
than perfect stability (illustration 12). The spin motor
notwithstanding, N17's ADACS also appeared to operate nominally during
the last reporting period.

On 3 July at 08:50z, the N17 VTX-2 transmitter, used for APT
transmissions, began turning off over each CDA support and then powering
back on when the support was completed. This commanding was initiated by
the stored command table with the turnoff commands only occurring during
CDA supports, but not during blind periods (illustration 13). Numerous
reports were received by NOAA from outside users concerning this
situation which was corrected on 5 July at 14:00z by taking the VTX-2
off commands out of the stored command table and commanding VTX-2 back
on continuously. Along with the N16 BTX turnoff (which remains in
effect) concerns regarding this VTX situation are centering on the SOMS
program and the current configuration of its RF priority algorithms.

As stated last week, starting 11 July, N17 will be used to test
Svalbards ability to receive GAC (or any playback) data and re-transmit
that data back to the SOCC. Should this concept prove to be viable,
Svalbard could then be incorporated into POES data dump scheduling thus
reducing data latency and enhancing spacecraft analysis capabilities.

NOAA-18: The OV period officially ended on 3 July for N18. However, N18
is not expected to become "fully operational" until

late summer. Therefore, until that day, the operational status of N18
can be considered "transitionally operational". Some OV testing
continues primarily on SBUV while other tests which are being performed
to investigate TOARS that were generated by NASA during the OV period
(HIRS, Z-axis control, DCS-DRU8) . During the past week NASA opened one
more TOAR on the DDR current spikes which have been discussed in this
report previously. HIRS testing continued under the coordination of a
tiger team that is investigating the higher then desired noise levels in
channels 1-12. Last week EMOSS did received reports that the noise
problem was improving but had not yet reached nominal levels. This week
the latest HIRS test on behalf of this investigation had EMOSS engineers
dwell on the Z-reaction wheel current, then switch SATCU from Mode-B
(normal on-orbit configuration) to Mode-A (primarily a launch/deploy
configuration), then point HIRS to Space View for 2 orbits after which
it was returned to full scan mode.

This operation was nominally implemented by EMOSS engineers Jim Walters
and Sally House although the test results produced by this operation are
unknown by EMOSS at this time.

One lesson learned from the SATCU operation was that when switching
SATCU to Mode-A SADPOS should be disabled before the switch occurs and
remain disabled until the switch back to Mode-B. The reason for
implementing this reconfiguration is that Mode-A replaces two of the
three illumination sensor values (CSCLI1 and 2) used by SADPOS to
determine if the sun was inadvertently lost with two other, non SADPOS
related values (array hinge deployments). However, while in Mode-A
SADPOS remains unaware that these illumination sensors readings have
been replaced with the hinge readings and continues reading the raw
hinge values as CSCl1 and 2 illumination readings. Fortunately, the two
hinge deployment raw values (which should never change after array
deployment) are in conflict relative to how they are read by SADPOS (one
hinge raw value is the raw equivalent of spacecraft lit the other hinge
is equivalent to spacecraft dark). Therefore, SADPOS will "break the
tie" by using SADSCI (which is [not]{.underline} replaced in SATCU mode
switches) to determine spacecraft illumination status. As long as SADSCI
remains nominal, operational and/or not "locked out", the worst case
scenario of switching to SATCU Mode-A with SADPOS enabled is that an
illumination sensor miscompare will be reported (the conflicting hinge
readings). However, if for any reason, the SADSCI sensor is
non-operational and/or is locked out, switching to SATCU mode-A with
SADPOS enabled would immediately result in the SADPOS timer starting its
8 minute (to be changed to 15 minutes prior to the next solar eclipse)
countdown timer after which, without intervention by the ground, SADPOS
would take over control of the solar array and move the offset to zero
degrees. (Refer to illustration 14.)

Also on 5 July, the SBUV was switched to cathode mode for one day (at
approximately 17:00z) and then back to anode mode at 13:30z on 6 July.
Jim Walters and Sally House were the EMOSS engineers in charge of this
implementation.

SBUV testing out of stored command also continued during the past week
on Jday 180, 181, 182, and 183) the results of which are assumed to have
been nominal. (Refer to Procedure 050620-1505: NOAA-18 SBUV Activities
J172-183.)

Because of projected frequent and planned RF conflicts with N16, N18 had
its STX assignments swapped on 28 June at 01:30z. The swap made STX-3,
previously a playback STX, into the HRPT transmitter and reassigning
STX-1, previously HRPT transmitter to playback operations. Additional
transmitter re-assignments for a variety of spacecraft and transmitter
types are planned for August of 2005. Will Chadwick is EMOSS POC for
these operations.

See illustrations 15-21 for a sample of N18 performance over the past
week.

![](media/image1.png){width="8.25in" height="6.139583333333333in"}

Illustration 1: N15 AMSU's Analysis:

(Nominal and stable)

![](media/image2.png){width="8.145833333333334in"
height="6.279861111111111in"}

Illustration 2: N15 AVHRR & HIRS Analysis

(Nominal and stable. Perhaps even a little improvement in the AVHRR scan
motor)

![](media/image3.png){width="8.25in" height="6.3597222222222225in"}

Illustration 3: N15 EPS Analysis

(Eclipse season beginning to wane, nominal behavior)

![](media/image4.png){width="8.125in" height="6.156944444444444in"}

Illustration 4: N16 AVHRR Analysis

(As has been a concern reported in this report over the past several
weeks, scan motor current degradation has now breeched the bar code
imagery threshold.)

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

Illustration 5: N16 AVHRR Synch Delta Analysis

(Not as bad as last week but not at all good either. Still rephasing
each orbit with the synch delta typically pegging out again within 15-30
minutes.)

![](media/image6.png){width="5.998611111111111in"
height="6.047916666666667in"}

Illustration 6: N16 AVHRR GAC & LAC Analysis

(Note on the GAC's how the rephase (RE) does clean up the imagery.
Unfortunately, as depicted by the 6 July GAC, the clean up doesn't last
long.)

![](media/image7.png){width="7.875in" height="5.709722222222222in"}

Illustration 7: N16 AVHRR HRPT ANALYSIS

(First bar code showed up on 29 June, by 3 July over 50% occurrence was
noted. By today almost every image is bar coded..)

![](media/image8.png){width="8.375in" height="6.322916666666667in"}

Illustration 8: N16 HIRS Health Analysis

(Nominal and stable. No apparent influences from the AVHRR problems)

![](media/image9.png){width="8.25in" height="6.3597222222222225in"}

Illustration 9: N17 AMSU Health Analysis

(Nominal and stable.)

![](media/image10.png){width="8.25in" height="6.353472222222222in"}

Illustration 10: N17 AVHRR Analysis

(Nominal and stable except for some spikes in the electronics current.)

![](media/image11.png){width="8.125in" height="6.256944444444445in"}

Illustration 11: N17 HIRS Health Analysis

(Nominal and stable)

![](media/image12.png){width="8.25in" height="6.353472222222222in"}

Illustration 12: N17 ADACS Performance Analysis

(Generally nominal and stable although a reduction is the fluctuation in
Gyro-2 current would certainly be preferred.)

![](media/image13.png){width="8.25in" height="6.204861111111111in"}

Illustration 13: N17 VTX-2 (APT data) Analysis

(Note the turnoffs that inadvertently occurred on 3, 4 and 5 July.
Problem has since been resolved.)

![](media/image14.png){width="8.25in" height="6.204861111111111in"}

(data source=ABE)

Illustration 14: N18 SATCU Mode Swap Analysis

(Note the change in CSCLI1&2 and no change in SADSCI. Also note how one
hinge is relatively high, which is read by SADPOS as spacecraft
illuminated while the other is below the darkness threshold and is read
by SADPOS as spacecraft dark. When such conflict occurs, SADSCI is the
deciding factor regarding the initiation of the SADPOS timer.)

![](media/image15.png){width="8.25in" height="6.3597222222222225in"}

Illustration 15: N18 AMSU Health Analysis

(Nominal and stable)

![](media/image16.png){width="8.625in" height="6.499305555555556in"}

Illustration 16: N18 HIRS Health Analysis

(Nominal and stable from an engineering perspective. Testing and tiger
team coordination continue. )

![](media/image17.png){width="8.375in" height="6.311805555555556in"}

Illustration 17: N18 AVHRR Analysis.

(Stable and nominal)

![](media/image18.png){width="8.375in" height="6.232638888888889in"}

Illustration 18: N18 SBUV Analysis

(Stable and nominal. Testing continued last week with a one day switch
to cathode mode on 5 July and back to anode mode on 6 July.)

![](media/image19.png){width="8.375in" height="6.45625in"}

Illustration 19: N18 MHS Analysis

(Data spikes cause not yet ascertained. Possible ground processing
problem. Source of data = ABE. )

![](media/image20.png){width="8.25in" height="6.3597222222222225in"}

Illustration 20: N18 DHS/Comm Health Analysis

(DDR spikes not as frequent as previous weeks although a new TOAR was
submitted last week. STX transmitter performance following swap appears
to be nominal.)

# ![](media/image21.png){width="8.375in" height="6.232638888888889in"}

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# 

# Illustration 21: N18 ADACS Health Analysis

(Y-wheel current showing additional increases beyond that from previous
weeks. Otherwise performance looks nominal and stable.)

# 

# 

# N17 MEMORY SCRUB REPORT

# Last week. 

![](media/image22.png){width="7.750694444444444in"
height="1.8965277777777778in"}

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING July 1, 2005

  ---------- ---------- ---------- ---------- ---------- ---------- ----------
  DAY/DATE   NOAA-12    NOAA-14    NOAA-15    NOAA-16    NOAA-17    NOAA-18

  FRI. 06/24 -761 msec  +202 msec  -202 msec  +121 msec  +060 msec  -076 msec

  SAT. 06/25 -763 msec  +203 msec  -204 msec  +121 msec  +063 msec  -074 msec

  SUN. 06/26 -764 msec  +209 msec  -204 msec  +122 msec  +064 msec  -073 msec

  MON. 06/27 N/A        +209 msec  -205 msec  +122 msec  +064 msec  -072 msec

  TUE. 06/28 -766 msec  +206 msec  -205 msec  +122 msec  +065 msec  -072 msec

  WED. 06/29 -766 msec  +206 msec  -207 msec  +123 msec  +065 msec  -070 msec

  THU. 06/30 -768 msec  +207 msec  -208 msec  +126 msec  +065 msec  -073 msec
  ---------- ---------- ---------- ---------- ---------- ---------- ----------

EMOSS POC for this chart is JIM SHEPHERD

NOAA-14: As of 12/23/03 the TIP clock is corrected daily by --7.0 msec
to compensate for drift.

NOAA-15: As of 04/22/03 the TIP clock is corrected daily by --8.0 msec
to compensate for drift.

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

NOAA-17: As of 12/23/03 the TIP clock is corrected daily by --3.0 msec
to compensate for drift.

NOAA-12: As of 12/10/03 the TIP clock is corrected daily by +6.5 msec to
compensate for drift.

\* A clock jump of +500 milliseconds on 01/31/05 due to fractional
second daily ETCUP. A clock

> jump of +500 milliseconds on 04/17/05 due to fractional second daily
> ETCUP. Alternating +/-
>
> 500 millisecond clock jumps will ccur at 76-day intervals as long as
> fractional second daily
>
> ETCUP is utilized to manage clock drift. The next +500 millisecond
> jump is expected on 07/02/05.

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

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