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G4ROA > WXSAT 05.05.08 09:04l 365 Lines 11607 Bytes #999 (0) @ WW
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Subj: WX Sat Status Report 5/5
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To : WXSAT@WW
WEATHER SATELLITES
================
APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
==========================================
Author : Douglas S Deans. dsdeans@tiscali.co.uk
Sections 3 and 4 have updates.
SECTION 1: POLAR APT/LRPT REPORT -- 5th May 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.
25/02/08 - There is some recent evidence that NOAA 9 is once again
transmitting a spurious carrier from time to time. (I am grateful to
Mike Piper from Oregon 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 -- 5th May 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 3)
NOAA 17 1698.0 RHCP HRPT Good
NOAA 18 1707.0 RHCP HRPT Good
Feng Yun 1D 1700.4 RHCP CHRPT Good
Metop-A 1701.3 RHCP AHRPT off (note 4)
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.
UPDATE: Scan motor performance has recently improved.
4. 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 -- 5th May 2008
===================================
CHANGES SINCE LAST REPORT.
Update to Meteosat 8.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Europe & Africa
------------------
Satellite : Meteosat 8 (9.5°E)
Data : HRIT (digital) and LRIT (digital)
Operational : No. Standby for Meteosat 9.
Note : Satellite has now arrived at 9.5° E for start of RSS on
13th May 2008 (Eumetcast only).
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 : Yes
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.
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 : HRIT (digital) and LRIT(digital) 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 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.
Any reports for this section should be sent to :-
Douglas Deans dsdeans@tiscali.co.uk
SECTION 4: EUMETCAST REPORT -- 5th May 2008
=====================================
Service Status Hotbird Satellite (13° E)
EARS On Transponder 117: 10853.44 MHz
Meteosat 8 (RSS) 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.
Meteosat 9 Note added.
FSD Note updated.
Metop-A Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
General Note.
Changes to MSG Level 1.5 Image Product Radiance Definition will become
operational on 05/05/08. For more information please see:
http://www.eumetsat.int/Home/Main/Media/News/032113?l=en
In preparation for the upcoming JASON-2 mission we have created a
dedicated
EUMETCast channel for both, Jason-1 and Jason-2 data. The existing Jason-1
products will be moved from channel 8 to the new channel.
This change will take place on 06/05/08.
For details, please see:
http://www.eumetsat.int/Home/Main/Media/News/700333?l=en
Advanced Notice.
The Meteosat-8 Rapid Scanning Service (RSS) will commence on 13/05/08.
Users who are interested in receiving the RSS data are requested to
contact
the User Service Helpdesk at ops@eumetsat.int.
For more information please see:
http://www.eumetsat.int/Home/Main/Media/News/032114?l=en
Due to essential maintenance on 17/05/08 and 31/05/08 there is a high risk
of interruption to all Eumetsat services during the following times.
For both 17/05/08 and 31/05/08:
04:00 to 05:00 UTC
15:00 to 17:30 UTC
Meteosat 9.
There will be a Meteosat-9 East-West station keeping manoeuvre on 06/05/08
at 04:13 UTC.
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.
FSD.
Due to a GOES12_75W manoeuvre planned on 06/05/08 at 16:02 UTC, images may
be unavailable for up to 6 hours after the maneuver.
Metop-A.
ASCAT: Monthly Calibration activities are foreseen between 2008-05-10 and
2008-05-13.
Interruptions scheduled so far may occur at:
2008-05-10 07:15 orbit 8078
2008-05-11 18:16 orbit 8099
2008-05-12 08:14 orbit 8107
2008-05-13 19:14 orbit 8128
EARS
Due to maintenance activities there is risk period for the provision of
Svalbard data on 6 May 2008, 11.30 to 12.30.
Ozone Products
Due to essential maintenance at the O3M-SAF on 6 May 2008, the production
of
the O3MSAF NRT Ozone Profile product will be delayed between 11.00-13.00
The following EPS GDS products are available on Eumetcast.
EPS-2 Metop AMSA operational
EPS-3 Metop ASCAT operational
EPS-4 Metop ATOVS operational
EPS-5 Metop GOME operational
EPS-6 Metop GRAS operational
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
EPS-18 EPS Service News 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: 07:49 on 05 May 2008
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