**POLAR Spacecraft Status As of: Weds 25 June 03 15:00 EST**

*(changes from last week in bold border)*

+----------+--------+--------+--------+--------+---------+---------+
| **Subs   | ##     | **NOAA | **NOAA | **NOAA | **NOA   | ##### N |
| ystem/** | ### NO | -12D** | -14J** | -15K** | A-16L** | OAA-17M |
|          | AA-11H |        |        |        |         |         |
| **Com    |        | S      | S      | BACKUP | PRIMARY | PRIMARY |
| ponent** | S      | tandby | tandby | AM     | PM      | AM      |
|          | tandby | AM     | AM     |        |         |         |
|          | PM     |        |        | GAC    | GAC&LAC | GAC&LAC |
|          |        | STIP   | STIP   | data   | data    | data    |
|          | STIP   | data   | data   | only   |         |         |
|          | data   | only   | only   |        |         |         |
|          | only   |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **LA     | 09     | 05     | 12     | 05     | 0       | 6/24/02 |
| UNCHED** | /23/88 | /14/91 | /30/94 | /13/98 | 9/21/00 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **CNTL   | OBP2   | OBP2   | OBP2   | OBP2   | OBP2    | OBP2    |
| OBP**    |        |        |        |        |         |         |
|          |        |        | OBP1   |        |         |         |
|          |        |        | inope  |        |         |         |
|          |        |        | rative |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BUS**  | A-BUS  | B-BUS  | B-BUS  | B-BUS  | B-BUS   | B-BUS   |
|          |        |        |        |        |         |         |
|          | XSU-1  | XSU-1  | XSU-2  | XSU-1  | XSU-1   | XSU-1   |
|          |        |        |        |        |         |         |
|          |        |        | XSU-1  |        |         |         |
|          |        |        | inope  |        |         |         |
|          |        |        | rative |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BUS    | NO     | NO     | NO     | NO     | NO      | NO      |
| VETO**   |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | DE     | N      | N      | OK     | NOMINAL | NOMINAL |
| *ADACS** | GRADED | OMINAL | OMINAL |        |         |         |
|          |        |        |        | Rg     | R       | R       |
|          | (Y, Z- | RG     | Rgm    | mode=M | gmode=D | gmode=D |
|          | Gyros  | mode=M | ode=Di | onitor | isabled | isabled |
|          | F      | onitor | sabled |        |         |         |
|          | ailed) | Normal |        | Normal | Normal  | YGC     |
|          | R      | mode   | SS     | mode   | Mode    | -Rwheel |
|          | educed |        | check  |        |         | swap &  |
|          | Gyro   |        | Di     | Gyro-3 | Gyro    | return  |
|          | S/W    |        | sabled | Of     | invest  | 6/1&2   |
|          |        |        | when   | f/Anom | igation |         |
|          |        |        | mo     |        |         |         |
|          |        |        | de=YGC |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **RXO**  | PRI    | PRI    | PRI    | PRI    | PRI     | PRI     |
|          |        |        |        |        |         |         |
|          | BU     | BU     | BU     | ETCUP  | ETCUP   | ETCUP   |
|          | random | random | random | -8     | --5.1   | -1 msec |
|          | e      | e      | e      | mSec   | mSec    |         |
|          | nables | nables | nables |        |         | -100 ms |
|          |        |        | ETCUP  | +100   | -100 ms | on 6/10 |
|          | ETCUP  |        | --7.3  | ms on  | on 6/10 |         |
|          | +70    |        | Msec   | 6/10   |         |         |
|          | mSecs  |        |        |        |         |         |
|          |        |        | -150   |        |         |         |
|          |        |        | ms on  |        |         |         |
|          |        |        | 6/10   |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **CLOCK  | 2      | 2      | 2      | 2      | 2       | 2       |
| DIV**    |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **MIRP** | ON     | ON     | ON     | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          |        |        | Ex     | Ex     | E       | I       |
|          |        |        | ternal | ternal | xternal | nternal |
|          |        |        | Sync.  | Sync,  | Sync,   | Synch   |
|          |        |        |        | R      |         |         |
|          |        |        | R      | ephase | Rephase | Rephase |
|          |        |        | ephase | Di     | Enabled | Enabled |
|          |        |        | D      | sable. |         |         |
|          |        |        | isable |        |         |         |
|          |        |        |        | Re     |         |         |
|          |        |        | Re     | phased |         |         |
|          |        |        | phased | Daily  |         |         |
|          |        |        | Daily  |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **TIP    | 1      | 1      | 1      | 2      | 1       | 1       |
| SIDE**   |        |        |        |        |         |         |
|          |        |        |        | ####   | Analog  |         |
|          |        |        |        | #### S | telem   |         |
|          |        |        |        | ince 4 | d       |         |
|          |        |        |        | /24/03 | rifting |         |
+----------+--------+--------+--------+--------+---------+---------+
| **DTRs** | 1A,    | 1, 3,  | 1, 2B, | 1, 2,  | 1       | 1,2,3,4 |
|          | 2B, 3, | 4, 5B  | 3A, 5  | 3, 4   | ,2,3,4A |         |
|          | 4A     |        | Safe   | Saf    |         | Safes   |
|          | Safes  | Safe   | state- | estate | Sa      | tate=1B |
|          | tate - | state- | 1B     | 1B EOT | festate |         |
|          | 2B,    | 1B     |        |        | 3A      | D       |
|          |        |        |        |        |         | TR2-SSR |
|          |        |        |        |        | 4B TOAR |         |
|          |        |        |        |        | 418     | DTR5    |
|          |        |        |        |        |         | TOAR    |
|          |        |        |        |        | (STIP   | 420     |
|          |        |        |        |        | only)   |         |
+----------+--------+--------+--------+--------+---------+---------+
| **VTX**  | OFF    | 1      | OFF    | 1      | INOP    | 2       |
|          |        |        |        |        |         |         |
|          |        | since  | Since  |        | OFF     |         |
|          |        | 4      | 8      |        | since   |         |
|          |        | /20/03 | /14/02 |        | 1       |         |
|          |        |        |        |        | 1/15/00 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **BTX**  | 2      | 1      | 2      | 1      | 1       | ####    |
|          |        |        |        |        |         | ###  2  |
+----------+--------+--------+--------+--------+---------+---------+
| **STX**  | 3 --   | 1 --   | 3 --   | 1, 2,  | 1 --    | 3 --    |
|          | TIP    | HRPT;  | HRPT   | 3 -    | HRPT;   | HRPT    |
|          |        |        |        | deg    |         |         |
|          | 1,2 -  | 2,3 -  | 2, 1   | raded; | 2--     | TOAR424 |
|          | Pl     | Pl     | --     |        | Pl      | low     |
|          | ayback | ayback | Pl     | ###    | ayback; | power   |
|          |        |        | ayback | ### 2  |         |         |
|          |        |        |        | Omni-- | 4 --    | 1&2     |
|          |        |        |        | HRPT;  | P       | P       |
|          |        |        |        | 4- Pla | layback | layback |
|          |        |        |        | yback  |         |         |
|          |        |        |        |        | 3 low   | 4 --    |
|          |        |        |        |        | power   | TIP     |
|          |        |        |        |        | unused  |         |
|          |        |        |        |        |         | TOAR423 |
|          |        |        |        |        |         | low     |
|          |        |        |        |        |         | power   |
+----------+--------+--------+--------+--------+---------+---------+
| #        | [Array | [Array | [Array | [Array | [Array  | [Array  |
| ## POWER | Off    | Off    | Off    | Off    | Off     | Off.    |
|          | -30°]  | 0°]    | -45°]  | -45°]  | -40     | --3     |
| (Array   | {.unde | {.unde | {.unde | {.unde | °]{.und | 5]{.und |
| offset,  | rline} | rline} | rline} | rline} | erline} | erline} |
| charge   |        |        |        |        |         |         |
| and      | Since  | SA     | Since  | Since  | Since   | Since   |
| eclipse  | 6      | Move   | 6      | 1      | 7/16/02 | 7/1/02  |
| states,  | /19/02 | to     | /19/03 | /25/01 |         |         |
| sun      |        | --30   |        |        | Eclipse | Eclipse |
| angle)   | E      | deg    | Sun    | Sun    | all     | all     |
|          | clipse | offset | Angle  | Angle  | year    | year    |
|          | all    | p      | at 36  | at 35  |         |         |
|          | year   | lanned |        | steady | Sun     | Sun     |
|          |        | for    | steady | trend  | Angle   | Angle   |
|          | Sun    | 6/26 @ | trend  |        | 68      | at 70   |
|          | angle  | 13:30Z |        | Batts  | TOPPED  | Steady  |
|          | 79     |        | Batts  | 1-3=   | OUT     | Trend   |
|          |        | E      | 1-3=   | LRC    | Steady  |         |
|          | Steady | clipse | LRC    |        | Trend   | Batts   |
|          | Trend  | Season |        | V      |         | 1-3=    |
|          |        |        | Batt   | /T=7/9 | Batt2A  | LRC     |
|          | Batts  | Peaked | 1&3V/  |        | TOAR    |         |
|          | 1-3=   | 22 Jun | T=8/11 | E      | 403     | V/T=4/8 |
|          | LRC    | 03     |        | clipse |         |         |
|          |        |        | Batt2  | Season | Batts   | TOAR    |
|          | VT1    | Sun    | V      |        | 1-3=    | 416 on  |
|          | ,2=6/8 | Angle  | T=9/11 | Peaked | LRC     | Batt2A  |
|          |        | at 38  | )      | 6/15   |         | temp    |
|          | VT3 =  | TOPPED |        |        | V/T=4/8 |         |
|          | 8/11   | OUT    | E      |        |         |         |
|          |        | Steady | clipse |        |         |         |
|          | Charge | Trend  | Season |        |         |         |
|          | state  |        |        |        |         |         |
|          | safe   | Batts  | PEAKED |        |         |         |
|          |        | 1      | 6/16   |        |         |         |
|          | trip   | &2=LRC |        |        |         |         |
|          | di     |        | Shunt  |        |         |         |
|          | sabled | V/T=4  | Degra  |        |         |         |
|          |        |        | dation |        |         |         |
|          |        |        | TOAR   |        |         |         |
|          |        |        | 425    |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| *        | OFF    | ON     | ON     | ON     | ON      | ### ON  |
| *AVHRR** |        |        |        |        |         |         |
|          | Failed | N      | Scan   | Rare   | Nominal | Nominal |
|          | Power  | ominal | Motor  | Scan   | (3B)    | (3A&B)  |
|          | Supply |        | de     | motor  |         |         |
|          |        |        | graded | s      | 3A-B    | 3A-B    |
|          |        |        | 5/1/03 | urges. | switch  | switch  |
|          |        |        | STAT   | Last   | d       | enabled |
|          |        |        | US=RED |        | isabled |         |
|          |        |        |        | In     |         |         |
|          |        |        |        | cident |         |         |
|          |        |        |        | 6      |         |         |
|          |        |        |        | /15/02 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **A      |        |        |        | ON     | ON      | ON      |
| MSU-A1** |        |        |        |        |         |         |
|          |        |        |        | Ch14   | TOAR    | TOAR    |
|          |        |        |        | inope  | 415 on  | 413     |
|          |        |        |        | rative | primary | Chan-3  |
|          |        |        |        |        | PLLO    | popcorn |
|          |        |        |        | Ch11   | chans   | noise   |
|          |        |        |        | inope  | 9-14    |         |
|          |        |        |        | rative | bias    | TOAR    |
|          |        |        |        |        | shift.  | 414 on  |
|          |        |        |        |        |         | PLLO    |
|          |        |        |        |        | TOAR    | chans   |
|          |        |        |        |        | 417 on  | 9-14    |
|          |        |        |        |        | Backup  | bias    |
|          |        |        |        |        | PLLO    | shift.  |
|          |        |        |        |        |         |         |
|          |        |        |        |        | Status  | TOAR    |
|          |        |        |        |        | =Yellow | 421 on  |
|          |        |        |        |        |         | Ch      |
|          |        |        |        |        |         | annel-7 |
|          |        |        |        |        |         | e       |
|          |        |        |        |        |         | levated |
|          |        |        |        |        |         | NEDT's  |
|          |        |        |        |        |         | noise   |
+----------+--------+--------+--------+--------+---------+---------+
| **A      |        |        |        | ON     | ON      | ON      |
| MSU-A2** |        |        |        |        |         |         |
|          |        |        |        |        | Space   |         |
|          |        |        |        |        | Pos     |         |
|          |        |        |        |        | ition-2 |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | ON     | ON      | ON      |
| AMSU-B** |        |        |        |        |         |         |
|          |        |        |        | Bias   | Space   |         |
|          |        |        |        | in All | Pos     |         |
|          |        |        |        | Cha    | ition-3 |         |
|          |        |        |        | nnels. |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Motor  |         |         |
|          |        |        |        | c      |         |         |
|          |        |        |        | urrent |         |         |
|          |        |        |        | surge  |         |         |
|          |        |        |        | 6/8/03 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| ### HIRS | #####  | INOP   | ON     | ON     | ON      | ON      |
|          | ## OFF |        |        |        |         |         |
|          |        | Filter | Opera  | Opera  | Nominal | 1 Pixel |
|          | #####  | Wheel  | tional | tional |         | cross   |
|          | ### Fi | turned |        |        |         | track   |
|          | lter W | OFF    |        | FW in  |         | misal   |
|          | heel A | 10/    |        | Hi     |         | ignment |
|          | nomaly | 17/02. |        | power, |         | .       |
|          |        | Elect  |        |        |         |         |
|          |        | ronics |        | FW     |         |         |
|          |        | On     |        | H      |         |         |
|          |        |        |        | eaters |         |         |
|          |        |        |        | OFF    |         |         |
|          |        |        |        |        |         |         |
|          |        |        |        | Filter |         |         |
|          |        |        |        | Motor  |         |         |
|          |        |        |        | c      |         |         |
|          |        |        |        | urrent |         |         |
|          |        |        |        | s      |         |         |
|          |        |        |        | urges. |         |         |
|          |        |        |        | Last   |         |         |
|          |        |        |        | in     |         |         |
|          |        |        |        | cident |         |         |
|          |        |        |        | 6/21   |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **MSU**  | ###    | INOP   | ON     |        |         |         |
|          | # INOP |        |        |        |         |         |
|          |        | Scan   | Scan   |        |         |         |
|          | OFF,   | Motor  | motor  |        |         |         |
|          | A      | OFF    | and    |        |         |         |
|          | ntenna | since  | a      |        |         |         |
|          | Failed | 3      | ntenna |        |         |         |
|          |        | /12/03 | pr     |        |         |         |
|          |        |        | oblems |        |         |         |
|          |        | Elect  |        |        |         |         |
|          |        | ronics |        |        |         |         |
|          |        | ON.    |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SSU**  | ON     |        | ON     |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **DCS**  | ON     | ON     | ON     | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          |        |        |        |        | Nominal | Nominal |
+----------+--------+--------+--------+--------+---------+---------+
| **SARR** | ON     |        | ON     | ON-A   | ON-A    | ON-A    |
|          |        |        |        |        |         |         |
|          | Low    |        |        | All    | All AGC | Nominal |
|          | signal |        |        | AGC    | Mode    |         |
|          |        |        |        | Mode   |         | All AGC |
|          |        |        |        |        | (B-side | Mode    |
|          |        |        |        | Interm | R       |         |
|          |        |        |        | ittent | eceiver |         |
|          |        |        |        | fa     | in FG   |         |
|          |        |        |        | ilures | mode)   |         |
|          |        |        |        | for    |         |         |
|          |        |        |        | 243MHz | 243 MhZ |         |
|          |        |        |        | A&B    | INOPE   |         |
|          |        |        |        |        | RATIVE. |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SARP** | ON     |        | OFF    | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          | N      |        | Failed | N      | Nominal | Nominal |
|          | ominal |        | Power  | ominal |         |         |
|          |        |        | Supply |        | RCVR    |         |
|          |        |        |        | RCVR   | B/W = 2 |         |
|          |        |        |        | B/W =  |         |         |
|          |        |        |        | 2      |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SEM**  |        | ON     | ON     | ON     | ON      | ON      |
|          |        |        |        |        |         |         |
|          |        | El     | El     | N      | Nominal | Nominal |
|          |        | ec-CH- | ec-CH- | ominal |         |         |
|          |        | HVPS=4 | HVPS=0 |        | E-CDEM  | E-CDEM  |
|          |        |        |        | E      | -HVPS=4 | -HVPS=2 |
|          |        | Pr     | Pr     | -CDEM- |         |         |
|          |        | ot-CH- | ot-CH- | HVPS=2 | P-CDEM  | P-CDEM  |
|          |        | HVPS=0 | HVPS=0 |        | -HVPS=4 | -HVPS=3 |
|          |        |        |        | Since  |         |         |
|          |        |        | 1 of 4 | 1      | since   | since   |
|          |        |        | Tele   | /14/03 | 4/15/03 | 2/18/03 |
|          |        |        | scopes |        |         |         |
|          |        |        | inope  | P      |         |         |
|          |        |        | rative | -CDEM- |         |         |
|          |        |        |        | HVPS=0 |         |         |
+----------+--------+--------+--------+--------+---------+---------+
| **SBUV** | INOP   |        | ON     |        | ON      | ON      |
|          |        |        |        |        |         |         |
|          | G      |        | Occa   |        | Backup  | Nominal |
|          | rating |        | sional |        | D       |         |
|          | motor  |        |        |        | iffuser | Anode   |
|          | OFF    |        | R      |        | in use  | Mode    |
|          | since  |        | educed |        | since   |         |
|          | 5      |        | G      |        | 6       |         |
|          | /29/03 |        | rating |        | /16/03. |         |
|          |        |        | Drive  |        | Primary |         |
|          | Elect  |        | Motion |        | d       |         |
|          | ronics |        |        |        | iffuser |         |
|          | and    |        | R      |        | has     |         |
|          | Heater |        | educed |        | antenna |         |
|          | remain |        | oper   |        | deploy  |         |
|          | ON     |        | ations |        | a       |         |
|          |        |        | p      |        | nomaly, |         |
|          |        |        | rofile |        | TOAR    |         |
|          |        |        | s      |        | 426     |         |
|          |        |        | tarted |        |         |         |
|          |        |        | 6/5/03 |        | AMSU    |         |
|          |        |        |        |        | EMI     |         |
|          |        |        |        |        | causing |         |
|          |        |        |        |        | erratic |         |
|          |        |        |        |        | B       |         |
|          |        |        |        |        | ehavior |         |
|          |        |        |        |        | from    |         |
|          |        |        |        |        | PMT     |         |
|          |        |        |        |        | cathod, |         |
|          |        |        |        |        | in      |         |
|          |        |        |        |        | range 3 |         |
|          |        |        |        |        | No      |         |
|          |        |        |        |        | cor     |         |
|          |        |        |        |        | rective |         |
|          |        |        |        |        | action  |         |
|          |        |        |        |        | p       |         |
|          |        |        |        |        | ossible |         |
+----------+--------+--------+--------+--------+---------+---------+
| **       |        |        |        | N/A    | ON      | ON      |
| SADPOS** |        |        |        |        |         |         |
|          |        |        |        |        | ENABLED | ENABLED |
|          |        |        |        |        |         |         |
|          |        |        |        |        | MFactor |         |
|          |        |        |        |        | =50%    |         |
+----------+--------+--------+--------+--------+---------+---------+
|          |        |        |        |        |         |         |
+----------+--------+--------+--------+--------+---------+---------+
|          | *      | *      | *      | *      | **N16** | **N17** |
|          | *N11** | *N12** | *N14** | *N15** |         |         |
+----------+--------+--------+--------+--------+---------+---------+

**COMMENTS/CHANGES:**

NOAA-11 No changes since previous report.

NOAA-12. Analysis by EMOSS engineers detected bus voltage
"instabilities" similar to those noticed on N14 which preceded that

spacecrafts autonomous switch to its backup mode controller and boost
regulator on 29 Apr. This bus voltage instability is indicative of
possible shunt stress or degradation. Therefore, to reduce this stress,
the charge current will be reduced by moving the solar array offset from
its current position of zero degrees to a --30 degree offset with the
sun. This operation is planned for implementation on 26 Jun at 13:30Z

N12 maximum eclipse duration (22% darkness per orbit) was reached on 22
Jun. This percentage darkness value should remain steady until the
second week of July after which will begin to decrease steadily until
the spacecraft goes back into full light on the 3^rd^ week of August. No
power problems have been detected during this eclipse season but as the
percentage light time increases toward 100%, so to would the amount of
battery charging which reinforces the decision NOAA has made to move the
solar array to reduce shunt stress.

NOAA-14: To increase the efficiency of battery charging, on 12 Jun the
N14 Solar Array offset was changed to --50 degrees (from --55).
Subsequent analysis indicated that this did enhance battery charging but
not to maximum efficiency. Since bus voltage remained nominal and steady
since the move it indicated that the shunts have not been unduly
stressed because of increased charging resulting from the move.
Therefore, to maximize battery charging efficiency, a second adjustment
of the solar array offset was implemented on Thursday, 19 June at 18:15Z
to an offset of --45 degrees. This move has achieved the optimum balance
of maximum charge current vs minimum shunt stress (Illustration 1) while
have a relatively insignificant influence on payload thermal profiles
(Illustration 2).

N14 maximum eclipse duration (20% darkness per orbit) was reached on 18
Jun. This percentage darkness value should remain steady until the first
week of July after which will begin to decrease steadily until the
spacecraft goes back into full light on the 2nd week of August. Other
than the shunt anomaly of 29 Apr (which is not attributed to eclipse
season) no power problems have been detected during this eclipse season.
However, as the percentage light time increases toward 100%, so to would
the amount of battery charging which may ultimately require yet another
move of the solar array to reduce charging and shunt stress, perhaps
back to --55 degrees, in mid to late July.

AVHRR scan motor current generally improved during the past week as it
has for the past 3 weeks. However, its scan motor current remains
relatively elevated with imagery still anomalous (illustration 3, and
4).

NOAA-15: N15 maximum eclipse duration (19% darkness per orbit) was
reached on 18 Jun. This percentage darkness value

should remain steady until the last week of June after which will begin
to decrease steadily until the spacecraft goes back into full light on
the 1st week of August. No power or thermal problems have resulted on
N15 from this eclipse season.

The HIRS filter motor current surged on 15 Jun and returned back to
nominal on 20 July then surged again on on 21 June and has since
returned to nominal (illustration 5). These surges appears to be similar
to others which have become a feature on N15 HIRS in the past two years.
The effect of this surge on imagery quality is inconclusive
(illustration 6) and EMOSS engineers have not received word of any
imagery degradation from users.

Both AMSU-B motor current and AVHRR scan motor current on N15 remained
nominal throughout the past reporting period.

NOAA-16: The N16 SBUV diffuser position encoder remains on the backup
unit since being commanded there by EMOSS

engineer Will Kent on 16 Jun. On 17 and 18 June the diffuser position
and solar irradiance values showed the same anomalous readings that
originally caused the switch to be implemented. However, starting on 19
June, the diffuser has been getting to the correct position and solar
irradiance data is back within specs. Will Kent is investigationg this
situation for EMOSS. The backup diffuser is expected to remain in use at
least through the end of the month.

No additional testing on STX-3 has occurred since the previous report.

NOAA-17: RF testing at Svaalbard will re-commence starting 28 June.
These tests will dump GAC data over the Svalbard site

twice a day using N17 and a variable combination of S-band transmitters
and frequencies. These tests are being conducted to validate the
Svaalbard ground station capabilities ability to support METOP. This
testing will continue out of the schedule until August 23rd.

NOAA-N Level 2 Data base validation is progressing well and expected to
be completed in time for the 25 Jul delivery date to

NASA. Azi Dinat is overseeing this effort for EMOSS.

MISC: Meetings supported by EMOSS included PACS CDR at ISI, MOWG, and
Data Base Delivery meeting at NASA.

![](media/image1.wmf){width="8.5in" height="6.440972222222222in"}

**[Illustration 1: N14 EPS Analysis relative to solar array
movements]{.underline}**

**[Battery 1,2 and 3 charge currents, Shunt driver and shunt partial
voltage, Bus voltage.]{.underline}**

![](media/image2.wmf){width="8.5in" height="6.440972222222222in"}

**[Illustration 2: N14 Payload Thermal Analysis relative to solar array
movements]{.underline}**

![](media/image3.wmf){width="8.75in" height="6.523611111111111in"}

**[Illustration 3: N14 AVHRR Scan Motor Health Analysis]{.underline}**

![](media/image4.png){width="4.322222222222222in"
height="8.433333333333334in"}

**[Illustration 4 N14 AVHRR Imagery Analysis, 25 June
2003]{.underline}**

![](media/image5.wmf){width="8.5in" height="6.3375in"}

**[Illustration 5: N15 HIRS Filter Motor Health]{.underline}**

![](media/image6.png){width="5.991666666666666in"
height="5.440277777777778in"}

**[Illustration 6: N15 HIRS Image at Peak of most recent filter motor
current surge (21 June 12:00Z)]{.underline}**

# POLAR SPACECRAFT TIP CLOCK ERROR

## WEEK ENDING June 20, 2003

  ----------- --------- ---------- ---------- ---------- ---------- ----------
  DAY/DATE    NOAA-11   NOAA-12    NOAA-14    NOAA-15    NOAA-16    NOAA-17

  FRI. 06/13  -1501     +539 msec  -071 msec  +051 msec  -035 msec  -028 msec
              msec                                                  

  SAT. 06/14  -1531     +098 msec  -070 msec  +050 msec  -035 msec  -029 msec
              msec                                                  

  SUN. 06/15  -1661     +092 msec  -069 msec  +049 msec  -035 msec  -029 msec
              msec                                                  

  MON. 06/16  -1091     +085 msec  -069 msec  +049 msec  -035 msec  -027 msec
              msec                                                  

  TUE. 06/17  -1321     +081 msec  -069 msec  +048 msec  -036 msec  -026 msec
              msec                                                  

  WED. 06/18  -1251     +075 msec  -068 msec  +050 msec  -036 msec  -026 msec
              msec                                                  

  THU. 06/19  -1181     +069 msec  -067 msec  +049 msec  -032 msec  -026 msec
              msec                                                  
  ----------- --------- ---------- ---------- ---------- ---------- ----------

EMOSS POC for this chart is JIM SHEPHERD

NOAA-12: As of 09/03/02 the TIP clock is corrected daily by +70 msec to
compensate for drift.

NOAA-14: As of 04/23/03 the TIP clock is corrected daily by ---7.3 msec
to compensate for drift.

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

NOAA-16: As of 04/23/03 the TIP clock is corrected daily by --5.1 msec
to compensate for drift.

NOAA-17: As of 04/23/03 the TIP clock is corrected daily by -1 msec to
compensate for drift.

N12: ADDED 1250 mSecs to spacecraft command clock on 6 June

N14: SUBTRACTED 150 msec from spacecraft command on 10 June.

N15: ADDED 100 msec to spacecraft command clock on 10 June.

N16: SUBTRACTED 100 msec from spacecraft command clock on 10 June.

N17: SUBTRACTED 100 msec from spacecraft command clock on 10 June.

![](media/image7.wmf){width="6.75in" height="3.9340277777777777in"}

![](media/image8.wmf){width="7.875in"
height="1.9652777777777777in"}**N17 Weekly CPU Scrub Report**

![](media/image9.wmf){width="7.0in" height="5.6in"}

![](media/image10.wmf){width="7.875in" height="4.75in"}

NOAA-17 Scrubber Hits by Geographic Occurrence since 27 Jul 02:

**Red/Circle = CPU#1 Black/X = CPU#2**

NOAA-17 Scrubber Hits from 16 Jun 2003 through 22 June 2003:

***PACS DATA AVAILABILITY (%)***

June 13, 2003 through June 19, 2003

JDAY 164-170

  ----------- ------- ------ ------------- --------- ------------- --------- -------------
                             NOAA15        NOAA14    NOAA11        NOAA16    NOAA17

  Friday      06/13   164    **99.9 (a)**  100.0     100.0         100.0     100.0

                                                                             

  Saturday    06/14   165    100.0         100.0     100.0         100.0     100.0

                                                                             

  Sunday      06/15   166    100.0         100.0     **95.3 (b)**  100.0     **99.9 (c)**

                                                                             

  Monday      06/16   167    **99.9(d)**   100.0     **90.4 (e)**  100.0     100.0

                                                                             

  Tuesday     06/17   168    **94.0 (f)**  **85.7    **86.1(h)**   100.0     **93.6(i)**
                                           (g)**                             

                                                                             

  Wednesday   06/18   169    100.0         100.0     100.0         100.0     100.0

                                                                             

  Thursday    06/19   170    100.0         100.0     100.0         **99.9    100.0
                                                                   (j)**     

                                                                             

                                                                             
  ----------- ------- ------ ------------- --------- ------------- --------- -------------

**[Comments:]{.underline}**

(a) Rev 26439/W: G4A noisy; 99.9% recovered.

(b) Rev 75940/F: S3A noisy; 99.4% recovered 3DL 3PE.

(c) Rev 05056/F: G4B noisy; 99.3% recovered.

(d) Rev 26461/F: G24A noisy; 99.3% recovered.

(e) Rev 75940/F: S4A noisy; 98.5% recovered 11DL 15PE.

(f) Rev 26473/W: G1A noisy; 98.6% recovered.

(g) Rev 43623/F: S3A noisy; 98.9% recovered 4DL 4PE.

(h) Rev 75960/F: S1A noisy; 97.5% recovered.

(i) Rev 05091/W: G3A noisy; 98.6% recovered.

(j) Rev 14123/F: G4B noisy; 99.9% recovered.

**\* System "A" losing telemetry, auto track problems.**

**[DTR Inf. (\*):]{.underline}**

NOAA-11 DTR 1B -Inoperative.

> DTR 2A/B -Frequently noisy

DTR 4B -Frequently noisy

DTR 5A/B -Inoperative

NOAA-12 DTR 5A -Inoperative.

DTR 2B -Occasionally noisy and short

NOAA-14 DTR 4A/B -Inoperative.

DTR 3B -Unreliable playbacks, Removed from operations.

DTR 2A -Inoperative, DOY/200

NOAA-15 DTR 5A/B - Inoperative

NOAA-16 DTR 5A/B -Inoperative

DTR 3A -safe state change 1B

DTR 4B --Inoperative 1/12/03

NOAA-17 DTR 5A/B-Inoperative 2/16/03 Anomaly

**[Acronyms:]{.underline}**

DL -- Drop lock(s) PE - Parity Error(s) DQR - Data Quality Report

BE - Bit Error(s) DAR - Data Accountability Report MFR - Multi-Function
Receiver