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G4ROA > WXSAT 31.10.05 13:50l 335 Lines 9037 Bytes #999 (0) @ WW
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Subj: WXSAT Status 31/10
Path: DB0FHN<DB0MRW<OK0PPL<DB0RES<DK0WUE<I0TVL<CX2SA<GB7YFS<GB7PZT<GB7MAX<
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Sent: 051031/1139Z @:GB7COV.#29.GBR.EU #:39226 [Coventry] $:310601G4ROA
From: G4ROA@GB7COV.#29.GBR.EU
To : WXSAT@WW
WEATHER SATELLITES
================
APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
==========================================
Author : Douglas S Deans.
Section 4 has updates.
SECTION 1: POLAR APT REPORT -- 31st October 2005
========================================
Satellite Frequency (MHz) Status Image Quality
NOAA 12 137.500 on good
NOAA 14 137.620 off n/a
NOAA 15 137.500 on good
NOAA 17 137.620 on good
NOAA 18 137.9125 on good
CHANGES SINCE LAST REPORT
None.
THIS WEEK'S POSSIBLE EVENTS
None expected.
NOTES.
1. NOAA 9 was permanently deactivated some years ago and is tumbling
freely. Unfortunately it has a sporadic carrier on 137.500 (varies
quickly according to orientation) and can cause interference to NOAA 12
and NOAA 15.
2. Tiros-N and NOAA 6 are putting a carrier out on 137.500 and will
interfere with NOAA 12 and 15 when their footprints overlap.
3. NOAA 16's APT transmission system failed a few months after launch.
4. Elements are available from :-
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
LAUNCHES.
NOAA N' launch.....NET December 2007.
Douglas Deans.
Dunblane, Scotland.
SECTION 2: POLAR DIGITAL REPORT -- 31st October 2005
===========================================
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Satellite Frequency Antenna Mode Image Quality
(MHz)
NOAA 12 1698.0 RHCP HRPT Good
NOAA 14 1707.0 RHCP HRPT Mixed ( note 1)
NOAA 15 1702.5 Omni HRPT Weak
NOAA 16 1702.5 LHCP HRPT Mixed ( note 3)
NOAA 17 1707.0 RHCP HRPT Poor (note 2)
NOAA 18 1698.0 RHCP HRPT Good
Feng Yun 1C 1700.4 RHCP CHRPT No data (note 4)
Feng Yun 1D 1700.4 RHCP CHRPT Good
NOTES.
1. On 14th April 2004 NOAA 14's AVHRR scan motor stalled. It was assumed
that it would be unlikely to work again.
However on the 16th July 2005 it unexpectedly sprung to life with
nominal currents and more importantly nominal synch delta values. Good
imagery was once again being reported.
UPDATE: Scan motor problems have returned and reports are again mixed.
Some periods of good data, some poor.
2. 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.
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. Although all channels are being transmitted on Feng Yun 1C, there is no
image data, so the channels are effectively empty.
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).
LAUNCHES.
Metop-2 (Metop-A after launch).......June 2006.
Douglas Deans.....with thanks to Lawrence Harris for his regular updates
and
reports.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
===========================================
WEATHER SATELLITE REPORT -- 31st October 2005
=======================================
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Europe & Africa
------------------
Satellite : Meteosat 7 (0°)
Data : HRI (digital) - 1694.5 MHz
Wefax (analogue) - 1691 & 1694.5 MHz
Operational : Present --- end June 2006 (Note 1).
Satellite : Meteosat 8 (3° W)
Data : HRIT (digital) and LRIT (digital)
Operational : From February 2004 (Note 2).
Satellite operational overlap : present until June 2006.
Satellite : Meteosat 6 (10°E) (Note 4)
Data : HRI (digital) - 1691 MHz (Occasional wefax for ranging)
Operational : Europe RSS.
North America
----------------
East.
Satellite : GOES 12 (75.1° W) (note 7.)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) -1691 MHz
Operational : Present .......
West.
Satellite : GOES 10 (135° W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational : Present ---- Sometime in 2006
Satellite : GOES 11 (in storage)
Data : GVAR (digital) and LRIT (digital)
Operational : Sometime during 2006
Satellite operational overlap ---- to be confirmed.
Asia (Russian Operated Satellite)
--------------------------------------
Satellite : GOMS / Electro 2
Data : Not yet specified (HRIT/LRIT likely)
Operational : To be launched 2006.
Asia (European Operated Satellite)
----------------------------------------
Satellite : Meteosat 5 (63°E) (Note 3)
Data : HRI (digital) - 1691 MHz
Wefax (analogue) -1691 MHz (from time to time)
Operational : Present....end of 2005
Asia (Indian Operated Satellite)
-----------------------------------
Satellite : Metsat
Data : None available.
Operational : Present....
Satellite : Insat 3A (Note 5.)
Data : VHRR (digital) 2599 MHz
Operational : Present ............
Asia & Oceania (Japanese Operated Satellites)
-----------------------------------------------------
Satellite : MTSAT-1R (140° E) (note 9.)
Data : HiRID and HRIT (digital) and
Wefax(analogue)/LRIT(digital) shared on 1691 MHz.
Operational : Present......
Asia & Oceania (Chinese Operated Satellites)
----------------------------------------------------
Satellite : Feng Yun 2C (105°E)
Data : SVISSR (digital) and LRIT (digital)
Operational : Present.............
NOTES.
1. If necessary the satellite may operate beyond this date.
2. HRIT & LRIT data will not be disseminated through the satellite but
will
be provided via Hotbird satellite in DVB mode. See the Eumetcast status
report for more information.
3. Meteosat 5 now operates with only one channel.
4. Meteosat 6 is providing a 10 minute rapid scan service of Europe on
HRI.
5. Insat 3A is a combined data and meteorological satellite.
6. For those interested in EMWIN data, the following sats/frequencies
apply.
GOES 7 (175 W) 1690.725 MHz.
GOES 10 (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
7. Full LRIT (no WEFAX) on GOES East commenced 01 March 2005 and
Full LRIT on GOES West scheduled for 01 October 2005.
For further information go to :-
http://noaasis.noaa.gov/LRIT/
8. MSG-1 became operational on 29th January 2004, and is now known as
Meteosat 8.
9. This satellite is also known as HIMAWARI 6.
LAUNCHES
GOES N launch to be determined.
MTSAT 2 late 2005.
MSG-2 late December 2005.
For updates/additions or errors (in this section) reply to
Dave Cawley Information@...
or Douglas Deans.
SECTION 4: EUMETCAST REPORT -- 31st October 2005
=========================================
Service Status Hotbird Satellite (13° E)
EARS On Transponder 117: 10853.44 MHz
RSS On Transponder 117: 10853.44 MHz
Meteosat 8 On Transponder 117: 10853.44 MHz
DWDSAT On Transponder 117: 10853.44 MHz
(requires subscription)
CHANGES SINCE LAST REPORT.
General Eumetcast note updated.
Meteosat 5 note added.
Meteosat 6 note added.
Meteosat 7 note added.
EARS note added.
THIS WEEK'S POSSIBLE EVENTS.
General Eumetcast note.
Due to maintenance on 02/11/05 there will be a increased risk of
interruption to all EUMETCast and Internet services between
08:00 and 11:00 UTC and again between 13:00 and 15:00 UTC.
Meteosat 5.
Due to ground segment maintenance on 01/11/05 between 09:00 and 13:00 UTC,
there is a high risk of service interruption. Due to Meteosat-5 moon
eclipse
on 01/11/05, slots 42 and 43 will not be scanned.
Meteosat 6.
There will be an interruption to the rapid scanning service between
31/10/05
at 18:00 UTC and 02/11/05 at 18:00 UTC, for ranging, manoeuvre and full
earth imaging.
Meteosat 7.
Due to ground segment maintenance on 01/11/05 between 09:00 and 13:00 UTC,
there is a high risk of service interruption. Due to Meteosat-7 moon
eclipse
on 02/11/05, slots 1 and 2 will not be scanned.
EARS.
Maintenance will take place 31/10/05 between 09:00 and 10:30 UTC. There
is a increased risk of interruption to the service.
Maintenance will take place 01/11/05. There will be an interruption to
the service between 09:30 - 11:30 UTC.
Transfer of data received at HRPT stations to users will be delayed.
My thanks to David Taylor for his help with reports.
Any reports for this section should be sent to :-
Douglas Deans douglas@...
NOTES.
1. For further information on the Eumetcast service see :-
David Taylor's web site
http://www.satsignal.net => Weather Satellites, ATOVS or
MSG Data Manager.
or Eumetsat's web site
www.eumetsat.int
GENERAL
=======
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: 06:36 on 31 Oct 2005
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