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G4ROA > WXSAT 19.09.05 08:47l 337 Lines 10402 Bytes #999 (0) @ WW
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Subj: WX Sat status 19/9
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Sent: 050919/0636Z @:GB7COV.#29.GBR.EU #:35381 [Coventry] $:530584G4ROA
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 -- 19th September 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 -- 19th September 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 Good ( note 1)
NOAA 15 1702.5 Omni HRPT Weak
NOAA 16 1702.5 LHCP HRPT Good ( 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 is once again being reported.
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).
Douglas Deans.....with thanks to Lawrence Harris for his regular updates
and
notes.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
===========================================
WEATHER SATELLITE REPORT -- 19th September 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 January 2006 (Note 1).
Satellite : Meteosat 8 (3° W)
Data : HRIT (digital) and LRIT (digital)
Operational : From February 2004 (Note 2).
Satellite operational overlap from February 2004 ---- January 2006.
Satellite : Meteosat 6 (10°E) (Note 4)
Data : HRI (digital) - 1691 MHz (Occasional wefax for ranging)
Operational : Standby for Meteosat 7 and 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
Wefax (analogue) - 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 the standby satellite for Meteosat 7. Whilst in standby
is
being used to provide 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 now NET 6th October 2005.
MTSAT 2 late 2005.
For updates/additions or errors (in this section) reply to
Dave Cawley Information@Time-step.com
or Douglas Deans.
SECTION 4: EUMETCAST REPORT -- 19th September 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 note added.
Meteosat 8 note added.
THIS WEEK'S POSSIBLE EVENTS.
General Eumetcast Note.
Due to maintenance on 21/09/05 between 09:00 and 10:00 UTC, there will be
a
high risk of interruption to all EUMETCast services
Meteosat 5.
Due to the eclipse season between 07/08/05 and 28/09/05, slots 39, 40 and
41
may not be available. Due to sun co-linearity between 14/09/05 and
23/09/05, the 07:16 AIVH and 07:28 AW formats may not be available.
Meteosat 6.
Due to the eclipse season between 16/08/05 and 03/10/05, slots 46, 47 and
48
may not be available.
Meteosat 7.
Due to the eclipse season between 25/08/05 and 10/10/05, slots 1, 2, 47
and
48 may not be available.
Meteosat 8.
Due to an East-West station keeping manoeuvre on 20/09/05 at 04:58 UTC,
users may observe degraded image quality for up to 6 hours after the
manoeuvre.
Due to a seasonal effect on Meteosat-8, there is high risk of degraded
image
quality on 23/09/05 between 00:00 UTC and 10:00 UTC.
More details will be announced shortly before the event.
Foreign Satellite Data (FSD).
Availability during eclipse season:
GOES-E (GOES12) between 13/08/05 and 05/10/05: no image at 06:00 UTC
GOES-W (GOES10) between 15/08/05 and 30/10/05: no image at 09:00 UTC
GMS (MTSAT1R) between 08/08/05 and 29/10/05: no image at 15:00 UTC
My thanks to David Taylor for his help with reports.
Any reports for this section should be sent to :-
Douglas Deans douglas@dsdeans.freeserve.co.uk
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: 06:34 on 19 Sep 2005
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