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G4ROA > WXSAT 04.10.10 09:19l 473 Lines 16580 Bytes #999 (0) @ WW
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Subj: WX Sat Status report 4/10
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To : WXSAT@WW
WEATHER SATELLITES
===============
POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
===============================================
Author : Douglas S Deans. dsdeans@btinternet.com
Sections 1, 2 and 4 have updates.
SECTION 1: POLAR APT/LRPT REPORT -- 4th October 2010
=============================================
Satellite Frequency (MHz) Status Image Quality
NOAA 15 137.500 (APT) on good
NOAA 17 137.620 (APT) on Poor. See Note 7.
NOAA 18 137.9125 (APT) on good
NOAA 19 137.100 (APT) on good
Metop-A 137.100 (LRPT) off see Note 3
Meteor M N1 137.100 (LRPT) sporadic see Note 6
CHANGES SINCE LAST REPORT.
NOAA 17 - Update to Note 7.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
NOTES.
1. Three of the older NOAA weather satellites which have been
decommissioned and are tumbling freely are known to sporadically put
out
a carrier on 137.500 MHz. The satellites are TIROS-N, NOAA 6 and NOAA
9
When the relevant footprints overlap this will cause interference to
NOAA 15 when active on this frequency.
4th June 2010 update for NOAA 9.
Mike Piper from Oregon has provided an interim update suggesting that
there are signs that the tumbling which had hit a slow point is
beginning to speed up again and that interference may be a bit less.
He hopes to have a further update soon after more investigation.
My thanks to him for his report.
2. NOAA 16's APT transmission system failed a few months after launch.
3. Metop-A's A-side LRPT transmitter has failed. Currently the redundant
B-side transmitter is off until further notice (No further service
expected due to interference with HIRS instrument).
4. NOAA 14 was decommissioned on 23rd May 2007.
5. NOAA 12 was decommissioned on 10th August 2007.
6. Signals have been reported from Meteor M N1 but they are
sporadic with periods off. Although classed as LRPT it does not
conform to the CGMS standard.
7. NOAA 17 has scan motor problems with rising motor currents.
Constant rephase by the MIRP was causing data dropouts on all the HRPT
stream and APT and GAC derivatives.
Auto re-phase has now been disabled and the resulting AVHRR products
are
almost all unusable. Daily MIRP rephasing via the Stored Command
Table
began on 18 May 2010 (10/138) - at the first pass over the South Pole
each day.
Update 29/09/10 :- Further deterioration in scan motor performance
with
no useable data from the AVHRR instrument.
8. Elements are available from :-
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
LAUNCHES.
None due in the near future.
SECTION 2: POLAR HRPT/AHRPT REPORT -- 4th October 2010
==============================================
CHANGES SINCE LAST REPORT.
NOAA 17 - Update to Note 7.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Satellite Frequency Antenna Mode Image Quality
(MHz)
NOAA 15 1702.5 Omni HRPT Weak
NOAA 16 1702.5 LHCP HRPT Mixed ( note 3)
NOAA 17 1698.0 RHCP HRPT Poor. See note 7.
NOAA 18 1707.0 RHCP HRPT Good
NOAA 19 1698.0 RHCP HRPT Good
Feng Yun 1D 1700.4 RHCP CHRPT Good
Feng Yun 3A see note 5
Metop-A 1701.3 RHCP AHRPT Good (note 4)
Meteor M N1 1700 See note 6.
NOTES.
1. NOAA 14 was decommissioned on 23rd June 2007.
2. NOAA 12 was decommissioned on 10th August 2007.
3. On Friday 19th September 2003 NOAA 16 developed AVHRR synch. problems
similar to those on NOAA 14 (and previously NOAA 15).
Since then reports have been mixed. Some periods of good data, some
poor.
4. On 25 May 2009, Eumetsat extended the coverage of the Advanced High
Resolution Picture Transmission (AHRPT) system on Eumetsat's Metop-A
polar-orbiting satellite. The improved service provides additional
coverage over the Gulf of Mexico and Indian Ocean regions.
For more information, please see:
http://www.eumetsat.int/Home/Main/Media/Features/710601
5. Feng Yun 3A was declared operational on 12th January 2009. My thanks
to
Johnny Lin for drawing this to my attention.
I am also grateful to Dave Wright of Dartcom for confirming that
unfortunately (as usual) the Chinese have not strictly complied with
the
CGMS AHRPT Global Standard so reception using a standard Metop AHRPT
receiver is not possible.
6. It appears that Meteor M N1 is neither using full HRPT or AHRPT and
cannot be received using current receivers. Please see other WSR
mails
for further explanation :-
http://tech.groups.yahoo.com/group/weather-satellite-reports/message/20
98
7. NOAA 17 has scan motor problems with rising motor currents.
Constant rephase by the MIRP was causing data dropouts on all the HRPT
stream and APT and GAC derivatives.
Auto re-phase has now been disabled and the resulting AVHRR products
are
almost all unusable.
Daily MIRP rephasing via the Stored Command Table began on 18 May 2010
(10/138) - at the first pass over the South Pole each day.
Update 29/09/10 :- Further deterioration in scan motor performance
with
no useable data from the AVHRR instrument.
LAUNCHES.
None due in the near future.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
===========================================
WEATHER SATELLITE REPORT -- 4th October 2010
======================================
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Europe & Africa
------------------
Satellite : Meteosat 8 (9.5°E)
Data : HRIT (digital) and LRIT (digital)
Operational : Yes, RSS and Standby for Meteosat 9.
Satellite : Meteosat 9 (0°) (note 7).
Data : HRIT (digital) and LRIT (digital)
Operational : Yes.
North America
----------------
East.
Satellite : GOES 13 (75° W).
Data: GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational: Yes.
West.
Satellite : GOES 11 (135°W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational : Yes.
Satellite : GOES 14 (105°W)
Data : In storage.
South America
----------------
Satellite : GOES 12 (60°W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) -1691 MHz
Operational : Yes on South American project.
Asia (Russian Operated Satellite)
--------------------------------------
Satellite : GOMS N2 / ELECTRO-L
sometimes called ELEKTRO -L/N1
Data : HRIT/LRIT.
Operational : No. launch date delayed indefinitely.
Asia (European Operated Satellites)
----------------------------------------
Satellite : Meteosat 7 (57.5°E)
HRI (digital) - 1691 MHz
Wefax (analogue) occasionally for ranging purposes
only.
Operational : Yes.
Satellite : Meteosat 6 (67.5°E) (Note 2).
Asia (Indian Operated Satellite)
-----------------------------------
Satellite : Metsat
Data : None available.
Operational : Yes.
Satellite : Insat 3A (Note 3.)
Data : VHRR (digital) 2599 MHz
Operational : Yes.
Asia & Oceania (Japanese Operated Satellites)
-----------------------------------------------------
Satellite : MTSAT-1R (140° E) (note 5.)
Data : HRIT (digital) and LRIT(digital) on 1691 MHz.
(Note 6.)
Operational : Standby but used to relay direct readout data from MTSAT-2.
Satellite : MTSAT-2 (145º E).
Data : HRIT (digital) and LRIT(digital) on 1691 MHz.
Operational : Yes (see above for MTSAT-1R)
Asia & Oceania (Chinese Operated Satellites)
----------------------------------------------------
Satellite : Feng Yun 2D (86.5°E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes.
Satellite: Feng Yun 2E (104° E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes.
NOTES.
1. Meteosat 7 stopped its 0° service at 09.00 UTC on 14th June 2006.
2. Meteosat-6 arrived on station at 67.5 degrees East, on the 27 April
2007.
After a short testing campaign, Meteosat-6 is now supporting the DCP
mission over the Indian Ocean during eclipse periods.
3. Insat 3A is a combined data and meteorological satellite.
4. For those interested in EMWIN data, the following sats/frequencies
apply.
GOES 11 (135 W) 1690.725 MHz
GOES 13 (75 W) 1690.725 MHz
For further info. there are many sources but the following is
particularly informative:-
http://iwin.nws.noaa.gov/emwin/user-intro.htm
5. This satellite is also known as HIMAWARI 6.
6. HiRID and WEFAX was discontinued on 12th March 2008. It was replaced
with HRIT/LRIT (after many months of dual dissemination).
7. Only LRIT (1691.0 MHz) is provided in direct readout.
Full HRIT and LRIT service from Eumetcast.
LAUNCHES.
None due.
SECTION 4: EUMETCAST REPORT -- 4th October 2010
========================================
Service Status Eurobird 9A Satellite (9° E)
EARS On Transponder TP63: 11976.82 MHz
Meteosat 8 (RSS) On Transponder TP63: 11976.82 MHz
Meteosat 9 On Transponder TP63: 11976.82 MHz
DWDSAT On Transponder TP63: 11976.82 MHz
EPS(Metop-A) On Transponder TP63: 11976.82 MHz
Jason On Transponder TP63: 11976.82 MHz
CHANGES SINCE LAST REPORT.
General Note updated.
Meteosat 9 Note added.
Meteosat 8 (RSS) Note added.
IODC Note updated.
Metop and NOAA Global Data Service Note updated.
Metop and NOAA Regional Data Service Note added.
Third-Party Data and Products Note updated.
Jason-2 Note added.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
GENERAL NOTE.
05 October 2010 - 18 October 2010.
Sun interference may affect the EUMETCast broadcast satellites.
Users might experience lower signal margin or outages on EUMETCast.
The exact times and durations of the signal degradation or outages depends
on the reception location.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/OperationalNews/800949?l=en
Meteosat Straylight Predictions for Autumn 2010 available on EUMETSAT
Website :
http://www.eumetsat.int/Home/Main/ServiceStatus/index.htm?l=en
(See Section "Operational Schedules").
METEOSAT 9.
08 October 2010 - 18 October 2010.
Sun Co-linearity.
Repeat cycles 11:30 and 11:45 UTC may be interrupted or not available.
METEOSAT 8 (RSS).
05 October 2010 - 15 October 2010.
Sun Co-linearity.
Repeat cycles 11:00 and 11:15 UTC may be interrupted or not available.
IODC.
05 October 2010 01:58 UTC.
Meteosat-7 East West Station Keeping Manoeuvre.
Users may observe degraded image quality for up to 6 hours after the
manoeuvre.
METOP AND NOAA GLOBAL DATA SERVICE.
05 October 2010 07:00 UTC - 06 October 2010 11:00 UTC An out-of-plane
manoeuvre is scheduled between the above times.
Measurements for the following instruments will be suspended and resumed
as
indicated below:
05/10/10 07:33 suspension of AMSU-A, HIRS, IASI, MHS, SEM measurements.
05/10/10 10:40 suspension of GOME-2 measurements.
06/10/10 05:30 resumption of AMSU-A, GOME-2, SEM measurements.
06/10/10 07:12 resumption of HIRS, IASI, MHS measurements.
"Planned Service Outage"
Dissemination stop on 05/10/2010.
UTC sensing time Products.
05/10/2010 10:30 AMSU-A GDS L1, HIRS GDS L1, MHS GDS L1, ATOVS Sounding
products, All IASI Products
05/10/2010 10:40 GOME-2 GDS L1
05/10/2010 11:50 All ASCAT Products (including Regional ocean surface
winds), Polar winds, GRAS GDS L1
Dissemination restart on 06/10/2010.
UTC sensing time Product(s)
06/10/2010 05:15 All ASCAT Products (including Regional ocean surface
winds), Polar winds
06/10/2010 06:00 AMSU-A GDS L1, GOME-2 GDS L1
06/10/2010 09:30 HIRS GDS L1, MHS GDS L1, ATOVS Sounding products, All
IASI
Products
06/10/2010 10:45 GRAS GDS L1
Actual times may vary.
Note that all Metop-A products from 11:50 on 05/10/2010 to 07:10 on
06/10/2010 will be severely degraded with respect to geolocation, whether
disseminated or not.
All data acquired between 11:50 and 13:32 on 05/10, and between 03:02 and
04:44 on 06/10, will be affected by manoeuvre-related changes in the
attitude and pointing of the spacecraft.
The configuration of the GRAS instrument will be modified during the
out-of-plane manoeuvre in order to extend tropospheric measurement
coverage.
No impact is expected on current operational products.
METOP AND NOAA REGIONAL DATA SERVICE.
05 October 2010 07:00 UTC - 06 October 2010 11:00 UTC An out-of-plane
METOP
manoeuvre is scheduled between the above times.
Please see METOP AND NOAA GLOBAL DATA SERVICE for details.
10 October 2010 05:12 - 09:10 UTC.
IASI External Calibration
Outage to IASI GDS Level 1C, Atmospheric temperature and water vapour,
cloud
parameters, ozone and trace gases products.
THIRD-PARTY DATA AND PRODUCTS.
12 August 2010 - 01 November 2010.
GOES11_135W Autumn Eclipse Season.
08:00 UTC and 09:00 UTC files may be unavailable or incomplete.
14 August 2010 - 17 October 2010.
GOES13_75W Autumn Eclipse Season.
05:00 UTC and 06:00 UTC files may be unavailable or incomplete.
21 August 2010 - 05 September 2010.
MTSAT-2_145E Autumn Eclipse Season.
14:00 UTC and 15:00 UTC files may be unavailable or incomplete.
05 October 2010 01:20 UTC
GOES East Manoeuvre.
Images may be incomplete for up to 6 hours after the manoeuvre.
06 October 2010 09:16 UTC
MTSAT-2 Manoeuvre.
Images may be incomplete for up to 6 hours after the manoeuvre.
JASON-2
04 October 2010 - 08 October 2010.
Maintenance activities at the Usingen Earth Terminal.
Timeliness of OGDR products will be impacted.
The following EPS GDS products are available on Eumetcast.
EPS-2 PID 510 Metop AMSA operational
EPS-3 PID 510 Metop ASCAT operational
EPS-5 PID 510 Metop GOME operational
EPS-6 PID 510 Metop GRAS operational
EPS-7 PID 510 Metop HIRS operational
EPS-8 PID 510 Metop MHS operational
EPS-9 PID 510 Metop SEM operational
EPS-10 PID 510 Metop AVHRR operational
EPS-11 PID 510 Metop IASI operational
EPS-12 PID 510 Metop HKTM operational
EPS-13 PID 510 NOAA AMSA operational
EPS-15 PID 510 NOAA GAC operational
EPS-16 PID 510 NOAA HIRS operational
EPS-17 PID 510 NOAA MHS operational
EPS-18 PID 510 EPS Service News operational
EPS-19 PID 510 Test service operational
EPS-Global PID 300 EPS Global data operational
(EPS-19 may sometimes be limited to Manufacturers)
NOTES.
1. Reports for all sections should be sent to :-
Douglas Deans. dsdeans@btinternet.com
2. For further information on the Eumetcast service see :-
David Taylor's web site
http://www.satsignal.eu => Weather Satellites, Using EUMETCast
or Satellite Tools, MSG
Data
Manager.
or the Eumetsat web site www.eumetsat.int
GENERAL
=======
For further weather satellite related information join GEO, Group for
Earth
Observation, and receive the informative quarterly magazine. See :-
http://www.geo-web.org.uk/
To download element sets for all satellites visit the following sites :
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
========================
73's - Adrian, G4ROA @ GB7COV
Message timed: 07:53 on 04 Oct 2010
Message sent using WinPack V6.80 (R)
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Member of:
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E-Mail: G4ROA@AOL.com
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