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G4ROA > WXSAT 11.10.10 09:18l 438 Lines 15150 Bytes #999 (0) @ WW
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Subj: WX Sat Status report 11/10
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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, 3 and 4 have updates.
SECTION 1: POLAR APT/LRPT REPORT -- 11th October 2010
=============================================
Satellite Frequency (MHz) Status Image Quality
NOAA 15 137.500 (APT) on good. See Note 8.
NOAA 17 137.620 (APT) on Poor. See Notes 7 &
8.
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.
NOAA 15 and NOAA 17 frequency change. See Note 8.
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. As of 12th October 2010 at 15.00 UTC the following APT frequencies will
apply :-
NOAA 17 137.500 MHz.
NOAA 15 137.620 MHz.
9. 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 -- 11th October 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.
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 -- 11th October 2010
======================================
CHANGES SINCE LAST REPORT.
Korean Satellite COMS added.
(my thanks to Johnny Lin for the update).
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 (Korean Operated Satellite)
-----------------------------------
Satellite : COMS (128.2° E)
Data : HRIT (digital) and LRIT (digital)
Operational : No. Commissioning.
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 -- 11th 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.
Meteosat 9 Note updated.
IODC Note updated.
Metop and NOAA Global Data Service Note updated.
SAF Products Note added.
Third-Party Data and Products Note updated.
Future Events 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.
13 and 14 October 2010 12:30 - 13:00 UTC.
Essential ground segment testing.
Risk of short interruption to Data Collection Platform (DCPs) service each
day.
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.
13 October 2010 08:00 - 10:00 UTC.
Essential communications testing.
High risk of interruption to Meteosat-7 Direct Dissemination data.
METOP AND NOAA GLOBAL DATA SERVICE.
11 October 2010 - 20:11 UTC Orbit 20658.
GOME2 Monthly measurements of GOME-2 polarisation (PMD) data in raw
readout
mode (PMDRAW).
Near real-time products from O3M SAF (L2 NTO) will be effected (see SAF
PRODUCTS below)
11 October 2010 - 05:39 UTC Orbit 20650.
ASCAT Gain Compression.
A short outage of all ASCAT products can be expected.
SAF PRODUCTS.
11 October 2010 - 20:11 UTC Orbit 20658.
Due to GOME2 operations (see above), O3M SAF Near Real Time Total Column
products (total column ozone, the total column NO2, and the tropospheric
NO2) will not be available.
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 - 30 October 2010
MTSAT-2 Autumn Eclipse Season
14:00 UTC and 15:00 UTC files may be unavailable or incomplete.
FUTURE EVENTS.
Meteosat 8 (RSS).
19 October 2010 02:16 UTC
Meteosat-8 North-South Orbit Inclination Manoeuvre
Due to the manoeuvre, the regular monthly rapid scanning interruption will
take place between 19 October 2010 at 01:45 UTC and 21 October 2010 at
09:00
UTC for scheduled full earth scanning and Ground Segment maintenance.
Full earth images (if any) will not be disseminated.
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 ack.org and
http://celestrak.com/NORAD/elements/
================================
73's - Adrian, G4ROA @ GB7COV
Message timed: 06:34 on 11 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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