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G4ROA > WXSAT 11.02.08 13:01l 410 Lines 13870 Bytes #999 (0) @ WW
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Subj: WX Sat Status Report 11/2
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From: G4ROA@GB7COV.#29.GBR.EU
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WEATHER SATELLITES
================
APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
==========================================
Author : Douglas S Deans. dsdeans@tiscali.co.uk
Section 4 has updates.
SECTION 1: POLAR APT/LRPT REPORT -- 11th February 2008
==============================================
Satellite Frequency (MHz) Status Image Quality
NOAA 15 137.500 (APT) on good
NOAA 17 137.620 (APT) on good
NOAA 18 137.100 (APT) on good
Metop-A 137.100 (LRPT) off see Note 3
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 know 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.
Latest report below.
29/04/2007 :- No interference noted recently from any of the above
satellites. (My thanks to Patrik Tast for this 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. Elements are available from :-
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
LAUNCHES.
NOAA N' launch.....February 2009.
Douglas Deans.
Dunblane, Scotland.
SECTION 2: POLAR HRPT/AHRPT REPORT -- 11th February 2008
================================================
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 4)
NOAA 17 1707.0 RHCP HRPT Poor (note 3)
NOAA 18 1698.0 RHCP HRPT Good
Feng Yun 1D 1700.4 RHCP CHRPT Good
Metop-A 1701.3 RHCP AHRPT off (note 6)
NOTES.
1. NOAA 14 was decommissioned on 23rd June 2007.
2. NOAA 12 was decommissioned on 10th August 2007.
3. Problems have developed with STX-3 (1707 MHZ). Power has dropped from
approx. 8W to about 2.4W resulting on a greatly reduced signal
strength.
4. 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.
UPDATE: Scan motor performance has recently improved.
5. The following HRPT transmitter changes were effective from
30th August 2005. The re-assignments were :-
NOAA 16 changed from STX1 (1698 MHz) to STX2 (1702.5 MHz).
NOAA 18 changed from STX3 (1707 MHz) to STX1 (1698 MHz).
6. Due to a transmitter failure the AHRPT direct readout service is
off until further notice ( this also includes ATOVS etc.).
LAUNCHES.
NOAA N' launch.....February 2009.
Feng Yun 3 .... May 2008 (thanks to Dale Hardy for this information)
Douglas Deans.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
===========================================
WEATHER SATELLITE REPORT -- 11th February 2008
=======================================
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Europe & Africa
------------------
Satellite : Meteosat 8 (3.5° W)
Data : HRIT (digital) and LRIT (digital)
Operational : No. Standby for Meteosat 9.
Satellite : Meteosat 9 (0°) (note 7).
Data : HRIT (digital) and LRIT (digital)
Operational : 11th April 2007............
North America
----------------
East.
Satellite : GOES 12 (75.0° W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) -1691 MHz
Operational : Present .......
West.
Satellite : GOES 11 (135°W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational : Present.......
South America
----------------
Satellite : GOES 10 (60°W)
GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz.
Asia (Russian Operated Satellite)
--------------------------------------
Satellite : GOMS N2 / ELECTRO-L
Data : HRIT/LRIT.
Operational : 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 : 17th October 2006.
Note : Due to Meteosat-7 eclipse season between 15/02/08 and
02/04/08 slots 39 to 43 may not be available.
Satellite : Meteosat 6 (67.5°E) (Note 2).
Asia (Indian Operated Satellite)
-----------------------------------
Satellite : Metsat
Data : None available.
Operational : Present....
Satellite : Insat 3A (Note 3.)
Data : VHRR (digital) 2599 MHz
Operational : Present ............
Asia & Oceania (Japanese Operated Satellites)
-----------------------------------------------------
Satellite : MTSAT-1R (140° E) (note 5.)
Data : HiRID and HRIT (digital) and
Wefax(analogue)/LRIT(digital) shared on 1691 MHz.
(Note 6.)
Operational : Present......
Asia & Oceania (Chinese Operated Satellites)
----------------------------------------------------
Satellite : Feng Yun 2C (105°E)
Data : SVISSR (digital) and LRIT (digital)
Operational : Present.............
Satellite : Feng Yun 2D (86.5°E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes. Parallel operation with 2C.
(My thanks to Johnny Lin for the update).
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 to be discontinued on 12th March 2008. (Thanks to Dale
Hardy for information). It will be replaced with HRIT/LRIT (also
currently available).
7. Only LRIT (1691.0 MHz) is provided in direct readout.
Full HRIT and LRIT service from Eumetcast.
Any reports for this section should be sent to :-
Douglas Deans dsdeans@tiscali.co.uk
SECTION 4: EUMETCAST REPORT -- 11th February 2008
=========================================
Service Status Hotbird Satellite (13° E)
EARS On Transponder 117: 10853.44 MHz
Meteosat 8 (RS) Off Transponder 117: 10853.44 MHz
Meteosat 9 On Transponder 117: 10853.44 MHz
DWDSAT On Transponder 117: 10853.44 MHz
EPS(Metop-A) On Transponder 117: 10853.44 MHz
CHANGES SINCE LAST REPORT.
General Note updated.
FSD Note updated.
EARS Note added.
Metop-A Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
General Note and Advanced Notice.
Due to essential EUMETCast maintenance on 12/02/08 between 09:00 and 10:00
UTC, there will be a short (less than 1 minute) interruption of the data
stream, however file losses are not expected, but possible.
Due to essential maintenance work on 12/02/07 there shall be the following
interruptions in the dissemination of Meteosat Meteorological Products:
Meteosat-9 (New Radiance Definition): The parallel dissemination of the
products using the new radiance definition shall be interrupted
between 07:30 and 10:30 UTC, followed by a 3 hour high risk period.
Meteosat-9: The dissemination of the operational products shall be
interrupted between 13:00 and 16:00 UTC, followed by a 3 hour high risk
period.
The maintenance has two impacts on the meteorological products. First of
all
a correction within the FIR product is introduced which results in a 1
pixel shift in the FIR ASCII product. Second the exact geographical
position
of the central pixel has been made consistent with the definition in the
document: MSG Level 1.5 Image Data Format Description.
Due to essential communications maintenance on 12/02/08 between 09:00 and
11:00 UTC there is a risk of interruption to all Eumetsat data.
On 04/02/08 at 09:00 UTC Eumetsat will start the parallel dissemination of
Meteosat-9 Meteorological Products as part of the validation of the MSG
Level 1.5 image product radiance definition change.
For more information and a detailed schedule please see:
http://www.eumetsat.int/home/Main/Access_to_Data/index.htm?l=en
EUMETSAT plans to complete the validation of the MSG Level 1.5 image
product
radiance definition change by April 2008, and assuming successful, the
product will be made fully operational then.
For more information and a detailed schedule please see:
http://www.eumetsat.int/home/Main/Access_to_Data/index.htm?l=en
On 04/03/08 at 09:00 UTC there will be changes to the MTSAT-1R Foreign
Satellite Data. As a result of these changes there will be an outage of
MTSAT-1R data on 04/03/08 from 07:00 to 08:45 UTC.
For more information please see:
http://www.eumetsat.int/Home/Main/Media/News/031460?l=en
FSD.
Due to GOES12_75W eclipse from 15/02/08 to 29/04/08 the 05:00 and 06:00
UTC
files may not be available.
Due to GOES11_135W eclipse from 12/02/08 to 27/04/08 the 09:00 and 10:00
UTC
files may not be available.
Due to MTSAT-1R_140E eclipse from 16/02/08 to 20/04/08 the 14:00 and
15:00UTC files may not be available.
Due to a MTSAT-1R_140E manoeuvre planned on 13/02/08 at 21:56 UTC, files
may
be unavailable for up to 6 hours after the maneuver.
IODC.
Due to Meteosat-7 eclipse season between 15/02/08 and 02/04/08 slots 39 to
43 may not be available.
EARS.
Due to essential maintenance on 12/02/08 at Svalbard HRPT station,
products
will be unavailable between 07:00 and 17:00 UTC.
Metop-A.
An ASCAT extensive calibration campaign started on the 08-Dec-07. It is
currently foreseen to continue until the 16 February 2008.
Short interruptions in ASCAT level 1b and level 2 data may occur on:
Day Orbit Time
11-Feb-08 6814 07:57
11-Feb-08 6821 19:18
12-Feb-08 6835 18:57
13-Feb-08 6842 07:15
13-Feb-08 6849 18:37
14-Feb-08 6856 06:54
14-Feb-08 6857 08:35
14-Feb-08 6863 18:16
15-Feb-08 6871 08:14
15-Feb-08 6877 17:55
15-Feb-08 6878 19:35
16-Feb-08 6885 07:53
16-Feb-08 6892 19:14
12-Feb-08 Eumetcast servicing 09:00 - 10:00. Transmission interruptions
may
occur.
NOAA 18 - Eumetsat/Svalbard support : Due to antenna anomalies, high
elevation support might be reduced until further notice.
The following EPS GDS products are available on Eumetcast. Some are now
classed as operational, some still on a trial basis.
EPS-2 Metop AMSA operational
EPS-3 Metop ASCAT trial
EPS-5 Metop GOME trial
EPS-6 Metop GRAS trial
EPS-7 Metop HIRS operational
EPS-8 Metop MHS operational
EPS-10 Metop AVHRR operational
EPS-11 Metop IASI operational
EPS-13 NOAA AMSA operational
EPS-15 NOAA GAC operational
EPS-16 NOAA HIRS operational
EPS-17 NOAA MHS operational
Any reports for this section should be sent to :-
Douglas Deans dsdeans@tiscali.co.uk
NOTES.
1. 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: 07:48 on 11 Feb 2008
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Member of:
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E-Mail: G4ROA@AOL.com
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