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G4ROA > WXSAT 17.03.08 23:00l 391 Lines 12784 Bytes #999 (0) @ WW
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Subj: WX Sat Status report 17/3
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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 -- 17th March 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 -- 17th March 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 -- 17th March 2008
=====================================
CHANGES SINCE LAST REPORT.
HiRID and Wefax terminated on MTSAT-1R (See note 6).
THIS WEEK'S POSSIBLE EVENTS.
None.
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 : 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.
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 : 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 -- 17th March 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.
Meteosat 9 Note added.
IODC Note updated.
Metop-A Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
General Notes and Advanced Notice.
C-Band Americas only.
Due to essential maintenance on 17/03/08 and 19/03/08 users may experience
short interruptions during the following maintenance windows:
17/03/08 between 08:00 and 11:00 UTC
19/03/08 between 08:00 and 11:00 UTC
We are pleased to announce the inclusion of the following new SAF products
on EUMETCast as of 18/03/08:
The OSI-SAF 25-km SeaWinds product and the O3M-SAF Near Realtime Ozone
Profile product. For more information please see:
http://www.eumetsat.int/Home/Main/Media/News/031895?l=en
On 18/03/08 at 10:00 UTC, EUMETSAT will commence the dissemination of the
Clear Sky Radiance (CSR) to all EUMETCast users.
This product had previously been available only to users of the GTS.
For more info see: http://www.eumetsat.int/Home/Main/Media/News/031606?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
Meteosat 9.
Due to the co-alignment of the two sun sensor slits on Meteosat-9, there
is
a possibility of degraded image quality between 22:15 UTC on 18/03/08
and
06:00 UTC on 19/03/08. The following services may be affected:
0 deg SEVIRI High Rate Meteosat-9
0 deg SEVIRI Low Rate Meteosat-9
0 deg Meteorological Products Meteosat-9
On 17/03/08 at 9.00 UTC, EUMETSAT plans to terminate the parallel
dissemination of Meteosat-9 data in support of the user validation phase
for the new MSG Level 1.5 image product radiance definition. There will be
no impact to the operational Meteosat-9 service.
For more information and a detailed schedule please see:
http://www.eumetsat.int/home/Main/Access_to_Data/index.htm?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 15:00
UTC files may not be available.
IODC.
Due to Meteosat-7 eclipse season between 15/02/08 and 02/04/08 slots 39 to
43 may not be available.
Due to a Meteosat-7 manoeuvre on 18/03/08 at 23:28 UTC, users may observe
degraded image quality for up to 6 hours after the manoeuvre.
Metop-A.
ASCAT cross-calibration campaign between 6 March and 5 April
Outages can be expected at the following times:
date orbit time
17-Mar-08 7311 07:32
17-Mar-08 7318 18:53
18-Mar-08 7325 07:11
18-Mar-08 7332 18:33
19-Mar-08 7340 08:31
19-Mar-08 7346 18:12
20-Mar-08 7354 08:10
20-Mar-08 7361 19:31
21-Mar-08 7375 19:11
22-Mar-08 7382 07:29
23-Mar-08 7396 07:08
23-Mar-08 7403 18:29
21-Mar-08 05:15 - 09:15 IASI External calibration. Data interruption to
be
expected.
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 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: 07:12 on 17 Mar 2008
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E-Mail: G4ROA@AOL.com
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