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G4ROA > WXSAT 12.04.10 08:53l 459 Lines 15329 Bytes #999 (0) @ WW
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Subj: WX Sat Status report 12/4
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Sent: 100412/0739Z @:GB7COV.#29.GBR.EU #:8745 [Coventry] $:FE0117G4ROA
From: G4ROA@GB7COV.#29.GBR.EU
To : WXSAT@WW
WEATHER SATELLITES
===============
POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
===============================================
Author : Douglas S Deans. dsdeans@btinternet.com
Sections 3 and 4 have updates.
SECTION 1: POLAR APT/LRPT REPORT -- 12th April 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.
None.
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.
23/03/10 update.
Mike Piper from Oregon has noticed that NOAA 9's tumbling appears to
be
slowing. This means that the satellite (when in the sun) could pass
with
no carrier or a carrier for the full pass. When overlapping with NOAA
15 the interference may last for long periods of the pass. My thanks
to
Mike Piper 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. NOAA continue with tests with a view to finding
a
solution.
8. Elements are available from :-
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
LAUNCHES.
Possibility of Okean 5 launch 2010.
Possibility of Sich 2M launch in April 2010 (now unlikely).
SECTION 2: POLAR HRPT/AHRPT REPORT -- 12th April 2010
============================================
CHANGES SINCE LAST REPORT.
None.
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. NOAA continue with tests with a view to finding
a
solution.
LAUNCHES.
None due in the near future.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
===========================================
WEATHER SATELLITE REPORT -- 12th April 2010
===================================
CHANGES SINCE LAST REPORT.
GOES 13 Note 8 updated.
THIS WEEK'S POSSIBLE EVENTS.
GOES 13 to take over from GOES 12 (East).
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 12 (75.0° 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 13 (drifting east) (see Note 8)
Data: GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational: 14th April 2010
Satellite : GOES 14 (105°W)
Data : In storage.
South America
----------------
Satellite : No dedicated service.
Asia (Russian Operated Satellite)
--------------------------------------
Satellite : GOMS N2 / ELECTRO-L
sometimes called ELEKTRO -L/N1
Data : HRIT/LRIT.
Operational : No. launch date unknown.
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 : Yes.
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 7 (175 W) 1690.725 MHz.
GOES 11 (135 W) 1690.725 MHz
GOES 12 (74.5 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.
8. GOES-13 is scheduled to replace GOES-12 as the GOES-East operational
spacecraft on April 14, 2010. For further information please go to :-
http://www.ssd.noaa.gov/PS/SATS/ and
http://www.ssd.noaa.gov/PS/SATS/MESS/MSG0981258.01.txt
LAUNCHES.
COMS. Launch of Korea's first Geostationary weather satellite
is scheduled for 22nd April 2010 aboard Ariane flight 195.
SECTION 4: EUMETCAST REPORT -- 12th April 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.
Meteosat 9 Note added.
Metop and NOAA Global Data Service Note updated.
Metop and NOAA Regional Data Service Note added.
SAF Products Note added.
Jason-2 Note added.
FSD Note updated.
Future Events Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
METEOSAT 9.
13 April 2010 03:28 UTC.
Meteosat-9 East-West Station Keeping Manoeuvre.
Users may experience degraded image quality following the manoeuvre for up
to 12 repeat cycles.
Users may experience degraded meteorological product quality following the
manoeuvre for up to 12 repeat cycles.
METOP AND NOAA GLOBAL DATA SERVICE.
14 April 05:12 - 09:11 UTC.
IASI External Calibration.
Outage to IASI Level 1 and IASI level 2 sounding products.
15 March - Until Further Notice.
ASCAT Extended Calibration Campaign.
ASCAT external calibrations will occur at every opportunity when passing
the
three transponders in Turkey.
The central transponder geo-location in degrees: 39.6N 32.8E.
Short ASCAT measurement data outages can be expected.
METOP AND NOAA REGIONAL DATA SERVICE.
14 April 2010.
EARS-AVHRR.
Addition of Moscow data to EARS-AVHRR.
Test data files available at:
ftp://ftp.eumetsat.int/pub/EUM/out/OPS/User/Moscow_AVHRR_Test_Data/
SAF PRODUCTS.
14 April 2010 19:37 UTC.
OSI SAF.
GOES-12 will be replaced by GOES-13 in GOES-E position.
The following LML (Low Mid Latitude) and MAP (Merged Atlantic Product)
products will be impacted:
SST (Sea Surface Temperature)
DLI (Downward Longwave Irradiance)
SSI (Surface Solar Irradiance)
From 14 April, LML and MAP products will not contain related GOES-E data
for
several weeks, due to the need of new validation campaign. Further notice
will be sent in due time.
FSD.
14 April 2010 19:00 UTC.
NOAA to swap operations for the GOES East service from GOES-12 to GOES-13.
GOES-13 test files are now available on the Eumetsat FTP server.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/OperationalNews/717198?l=en
23 February 2010 - Ongoing.
MODIS-Aqua reprocessing started 23 February 2010. The MODIS chlorophyll
alpha product redistributed by EUMETSAT, via EUMETCast, will be
interrupted
until the completion of the reprocessing campaign.
13 February 2010 - 29 April 2010.
GOES11_135W Eclipse.
09:00 UTC files may be not available.
13 February 2010 - 28 April 2010.
GOES12_75W Eclipse.
05:00 UTC and 06:00 UTC files may be not available.
09 April 2010 - 18 April 2010.
MTSAT-1R_140E Eclipse.
15:00 UTC files may not be available.
JASON-2.
14 April 2010.
Jason-2 OGDR-BUFR products: change of formats and filenames.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/OperationalNews/717200?l=en
FUTURE EVENTS.
Until Further Notice.
ASCAT Extended Calibration Campaign.
ASCAT external calibrations will occur at every opportunity when passing
the
three transponders in Turkey.
The central transponder geo-location in degrees: 39.6N 32.8E. Short ASCAT
measurement data outages can be expected.
18 May 2010.
IASI Level 1C Format and Contents change.
The IASI Level 1C operational products are planned to undergo a change of
format and contents. For full details, please see:
http://www.eumetsat.int/Home/Main/News/OperationalNews/717196?l=en
The following EPS GDS products are available on Eumetcast.
EPS-2 PID 510 Metop AMSA operational
EPS-3 PID 510 Metop ASCAT operational
EPS-4 PID 510 Metop ATOVS 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-10 PID 510 Metop AVHRR operational
EPS-11 PID 510 Metop IASI operational
EPS-13 PID 510 NOAA AMSA operational
EPS-14 PID 510 NOAA ATOVS 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-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: 07:18 on 12 Apr 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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