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G4ROA > WXSAT 14.06.04 09:09l 338 Lines 10577 Bytes #999 (0) @ EU
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Subj: WX Status 14/6
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Sent: 040614/0754Z @:GB7COV.#29.GBR.EU #:52271 [Coventry] $:CD0206G4ROA
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To : WXSAT@EU
WEATHER SATELLITES
================
APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
==========================================
APT STATUS REPORT -- 14th June 2004
=============================
Satellite Frequency (MHz) Status Image Quality
NOAA 12 137.500 on good
NOAA 14 137.620 off
NOAA 15 137.500 off
NOAA 17 137.620 on good
NB. There are no Russian Meteor or Okean satellites transmitting or able
to transmit APT.
CHANGES SINCE LAST REPORT.
NOAA 15's APT (137.500) switched off as forecast.
Sich 1-M launch updated.
NOAA N launch delayed further. (see Note 3)
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. NOAA 16's APT transmission system failed a few months after launch.
3. NOAA N launch put back to 11th February 2005.
LAUNCHES.
There is now no available launch information for Sich-1M. Seems unlikely
this year.
The next known satellite launch with APT is NOAA N. See Note 3.
Douglas Deans.
Dunblane, Scotland.
DIGITAL STATUS REPORT -- 14th June 2004
=================================
CHANGES SINCE LAST REPORT.
None.
THIS WEEK'S EVENTS.
None expected.
Satellite Frequency Mode Remarks
(MHz)
NOAA 12 1698.0 HRPT Good signal
NOAA 14 1707.0 HRPT No data (see note 5)
NOAA 15 1702.5 HRPT* Backup channel, weaker signal
NOAA 16 1698.0 HRPT* Good signal (see note 7)
NOAA 17 1707.0 HRPT* See note 6.
FengYun 1C 1700.4 CHRPT Weak signal, use dish 90cm.
FengYun 1D 1700.4 CHRPT Good signal.
Seastar 1702.5 SeaWifs signal OK
encrypted
NOTES.
1. At the NOAA 17 frequency of 1707 MHz occasional interference may be
expected from NOAA 14 at latitudes above 80 degrees. Erratic behaviour of
the inactive NOAA 9 also has proven to be a source of interference at
higher
latitudes. NOAA 9 follows a similar track to 17. Recent reports suggest
that this erratic behaviour is no longer being seen. My thanks to F. Valk
for keeping us up to date with this problem.
2. If you have a good LNA and analogue decoder (Timestep for example)
all sat's with "Good signal" or better can already be received using
a 1.5M helical beam (RIG Journal 64) or a small dish (60 to 80 cm) with
helical feed.
3. * These sat's have channel 3A/B which allows the composition of
almost true-colour images of daylight passes using R3G2B1
colour scheme. For more info on colouring see RIG Journal 69.
4. ~ 10 Channel imager, use colour scheme R1G9B7 or R1G2B7 for
daylight passes to get near true colour images.
5. It is believed that during a test to switch off and then back on the
NOAA 14 AVHRR scan mirror motor that the motor stalled. Last
reports
indicate that there is no AVHRR imagery available (not even of poor
quality).
6. 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.
7. 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.
Arne van Belle, WERKGROEP KUNSTMANEN
Co-ordinator Radio Observers (www.kunstmanen.nl)
Douglas Deans.....with thanks to Lawrence Harris for his regular updates.
CONTINENTAL GEOSTATIONARY WORLD WEATHER
=========================================
SATELLITE STATUS -- 14th June 2004
============================
CHANGES SINCE LAST REPORT.
None.
Europe & Africa
------------------
Satellite : Meteosat 7 (0°)
Data : HRI (digital) - 1694.5 MHz
Wefax (analogue) - 1691 & 1694.5 MHz
Operational : Present --- end 2005 (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 ---- end 2005.
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 8.)
Data : GVAR (digital) - 1685.7 MHz
Wefax (analogue)/LRIT (digital) time shared -1691
MHz
Operational : Present .......
West.
Satellite : GOES 10 (135° W)
Data : GVAR (digital) - 1685.7 MHz
Wefax (analogue) - 1691 MHz
Operational : Present ---- Sometime in 2004
Satellite : GOES 11 (in storage)
Data : GVAR (digital) and LRIT (digital)
Operational : Sometime during 2004
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 late 2005.
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 : GMS-5 (140° E) (Note 6)
Data : Wefax Relay only - 1691 MHz (120 kHz deviation)
Operational : Present ---- late 2004
Satellite : GOES 9 (204.2°W)
Data : GVAR (digital) - 1685.7 MHz
Operational : Present ....... late 2004
Satellite : MTSAT-1R
Data : HiRID (digital) and Wefax(analogue)/LRIT(digital)
shared.
Operational : To be launched NET November 2004.
Satellite operational overlap ---- not yet applicable.
Asia & Oceania (Chinese Operated Satellites)
----------------------------------------------------
Satellite : Feng Yun 2B (105°E)
Data : SVISSR (digital) - 1687.5 MHz
Operational : Present ......
Satellite : Feng Yun 2C
Data : SVISSR (digital) and LRIT (digital)
Operational : To be launched early 2004
Satellite operational overlap ---- not yet applicable.
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. GMS-5 ceased VISSR transmissions on 22nd May 2003. Wefax is now
derived from GOES-9 (155° E) GVAR and processed to a 140° aspect
through GMS-5. For further information see :-
http://www.jma.go.jp/JMA_HP/jma/indexe.html
7. For those interested in EMWIN data, the following sats/frequencies
apply.
GOES7 (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
8. Currently Wefax alignment problems make animation difficult. It is
hoped
this problem will be resolved soon.
9. LRIT is now operational in time share mode from GOES East. For
further
information go to : http://noaasis.noaa.gov/LRIT/
Full LRIT on GOES East will commence Autumn 2004.
10. MSG-1 became operational on 29th January 2004, and is now known as
Meteosat 8.
For updates/additions or errors (in this section) reply to
Dave Cawley Information@Time-step.com
EUMETCAST STATUS REPORT -- 14th June 2004
====================================
Service Status Hotbird Satellite (13° E)
EARS On Transponder 129: 11096 MHz
RSS On Transponder 129: 11096 MHz
Meteosat 8 On Transponder 129: 11096 MHz
CHANGES SINCE LAST REPORT
None.
THIS WEEK'S POSSIBLE EVENTS.
EARS Service.
There will be testing and maintenance activities during 14 to 16 June
effecting the CMC stations (Bedford, Gander and Edmonton). Some
interruption
to the service may be experienced, but will be kept to a minimum.
Meteosat 8.
On the 17/06/04 the SEVIRI repeat cycles 08:00 and 14:00 will not be
available.
Meteosat 5.
Due to a Meteosat 5 East-West manoeuvre on 15/06/04 at 00:28 UTC, users
may
observe degraded image quality for up to 6 hours after the manoeuvre
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.de
GENERAL
=======
To download element sets for all satellites visit the following site :
http://celestrak.com/
====================================
73's - Adrian, G4ROA @ GB7COV
Message timed: 07:38 on 14 Jun 2004
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Member of:
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E-Mail: G4ROA@AOL.com
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