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G4ROA > WXSAT 04.01.10 18:22l 451 Lines 14979 Bytes #999 (0) @ WW
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Subj: WXSat Status report 4/1
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From: G4ROA@GB7COV.#29.GBR.EU
To : WXSAT@WW
WEATHER SATELLITES
===============
POLAR 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 -- 4th January 2010
============================================
Satellite Frequency (MHz) Status Image Quality
NOAA 15 137.500 (APT) on good
NOAA 17 137.620 (APT) on good
NOAA 18 137.9125 (APT) on good
NOAA 19 137.100 (APT) on good
Metop-A 137.100 (LRPT) off see Note 3
Meteor M N1 137.100 (LRPT) sporadic see Note 6
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 known 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.
01/05/09 - Report of consistent interference on NOAA 15 signal when
NOAA 9 footprint overlaps. My thanks to Steven Ross 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. Signals have been reported from Meteor M N1 but they are
sporadic with periods off.
7. The APT services on NOAA-18 and NOAA-19 were modified to improve the
data content. Traditionally, NOAA provides visible data and infrared
data during the daylight portion of the orbit and infrared data during
the night-time portion of the orbit. This allowed the APT users
to have access to usable and complementary data at all times.
Therefore,
the new APT data content for the PM spacecrafts will be:
NOAA-18
APT Channel A: AVHRR Channel 1, ground track day
APT Channel A: AVHRR Channel 3B, ground track night
APT Channel B: AVHRR Channel 4, entire orbit
NOAA-19
APT Channel A: AVHRR Channel 2, ground track day
APT Channel A: AVHRR Channel 3B, ground track night
APT Channel B: AVHRR Channel 4, entire orbit
Since NOAA-18 is in close proximity of NOAA -19, the use of AVHRR
Channel 2 (NOAA -19 APT) in the daylight portion of the orbit will
enable APT users to acquire data for cloud and surface mapping. This
will complement AVHRR Channel 1 (NOAA-18 APT) for land/water
boundaries. The use of AVHRR Channel 1 and Channel 2 in the same
orbital plane will allow APT users the full range of visible data.
The changes were implemented on 22 December 2009, at 000230 UTC
8. Elements are available from :-
http://www.space-track.org and
http://celestrak.com/NORAD/elements/
LAUNCHES.
None due.
Possibility of Okean 5 launch 2010
SECTION 2: POLAR HRPT/AHRPT REPORT -- 4th January 2010
==============================================
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
NOAA 19 1698.0 RHCP HRPT Good
Feng Yun 1D 1700.4 RHCP CHRPT Good
Feng Yun 3A see note 5
Metop-A 1701.3 RHCP AHRPT Good (note 4)
Meteor M N1 1700 See note 6.
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. On 25 May 2009, Eumetsat extended the coverage of the Advanced High
Resolution Picture Transmission (AHRPT) system on Eumetsat's Metop-A
polar-orbiting satellite. The improved service provides additional
coverage over the Gulf of Mexico and Indian Ocean regions.
For more information, please see:
http://www.eumetsat.int/Home/Main/Media/Features/710601
5. Feng Yun 3A was declared operational on 12th January 2009. My thanks
to
Johnny Lin for drawing this to my attention.
I am also grateful to Dave Wright of Dartcom for confirming that
unfortunately (as usual) the Chinese have not strictly complied with
the
CGMS AHRPT Global Standard so reception using a standard Metop AHRPT
receiver is not possible.
6. It appears that Meteor M N1 is neither using full HRPT or AHRPT and
cannot be received using current receivers. Please see other WSR
mails
for further explanation :-
http://tech.groups.yahoo.com/group/weather-satellite-reports/message/20
98
LAUNCHES.
None due in the near future.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
===========================================
WEATHER SATELLITE REPORT -- 4th January 2010
=====================================
CHANGES SINCE LAST REPORT.
GOES P launch date added.
THIS WEEK'S POSSIBLE EVENTS.
None expected.
Europe & Africa
------------------
Satellite : Meteosat 8 (9.5°E)
Data : HRIT (digital) and LRIT (digital)
Operational : Yes, RSS and Standby for Meteosat 9.
Satellite : Meteosat 9 (0°) (note 7).
Data : HRIT (digital) and LRIT (digital)
Operational : Yes.
North America
----------------
East.
Satellite : GOES 12 (75.0° W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) -1691 MHz
Operational : Yes
West.
Satellite : GOES 11 (135°W)
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational : Yes
Satellite : GOES 14 (105°W)
Data : Science test. See Note 8.
South America
----------------
Satellite : No dedicated service.
Asia (Russian Operated Satellite)
--------------------------------------
Satellite : GOMS N2 / ELECTRO-L
sometimes called ELEKTRO -L/N1
Data : HRIT/LRIT.
Operational : No. 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 : Yes.
Satellite : Meteosat 6 (67.5°E) (Note 2).
Asia (Indian Operated Satellite)
-----------------------------------
Satellite : Metsat
Data : None available.
Operational : Yes.
Satellite : Insat 3A (Note 3.)
Data : VHRR (digital) 2599 MHz
Operational : Yes.
Asia & Oceania (Japanese Operated Satellites)
-----------------------------------------------------
Satellite : MTSAT-1R (140° E) (note 5.)
Data : HRIT (digital) and LRIT(digital) on 1691 MHz.
(Note 6.)
Operational : Yes.
Asia & Oceania (Chinese Operated Satellites)
----------------------------------------------------
Satellite : Feng Yun 2D (86.5°E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes.
Satellite: Feng Yun 2E (104° E).
Data : SVISSR (digital) and LRIT (digital)
Operational : Yes.
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.
8. NOAA GOES 14 science test. See :-
http://www.ssd.noaa.gov/PS/SATS/MESS/MSG3421948.01.txt
Web Sites for more information:
http://www.ssd.noaa.gov/PS/SATS/GOES/TEN/
http://cimss.ssec.wisc.edu/goes/rt/goes10.php
LAUNCHES.
GOES P launch set for 25th February 2010.
(Note launch window extends to 26th February).
SECTION 4: EUMETCAST REPORT -- 4th January 2010
========================================
Service Status Eurobird 9A Satellite (9° E)
EARS On Transponder TP63: 11976.82 MHz
Meteosat 8 (RSS) On Transponder TP63: 11976.82 MHz
Meteosat 9 On Transponder TP63: 11976.82 MHz
DWDSAT On Transponder TP63: 11976.82 MHz
EPS(Metop-A) On Transponder TP63: 11976.82 MHz
Jason On Transponder TP63: 11976.82 MHz
CHANGES SINCE LAST REPORT.
General Note added.
FSD Note updated.
Metop and NOAA Global Data Service Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
GENERAL NOTE.
04 January 2010 09:00 - 12:00 UTC.
Essential EUMETCast Maintenance.
High risk of data delays (~1 min) and possible data losses.
FSD.
04 January 2010 08:14 UTC.
MTSAT-1R: Manoeuvre.
Images may be unavailable for up to 6 hours after the manoeuvre.
05 January 2010 19:47 UTC.
GOES-12: Manoeuvre.
No image at 20:00 UTC. Incomplete images at 21:00 UTC and at 00:00 and
03:00
UTC on 06 January 2010.
Swap of the 105E service from FY-2C to FY-2E FY-2E.
The FY-2E products have now been validated by CMA and are now considered
operational.
METOP AND NOAA GLOBAL DATA SERVICE.
03 January 2010 22:56 UTC - 04 January 2010 - 20:35 UTC.
IASI Moon Avoidance.
There is a high risk period for the IASI products being out of
specifications during this time.
04 January 2010 07:32 - 07:39 UTC.
ASCAT Gain compression. A short outage can be expected.
Until Further Notice.
ASCAT extended external calibration campaign.
Calibration will occur at every opportunity when passing the ground sites.
The Central transponder geolocation in degrees: 39.6N 32.8E.
Short data outages can be expected.
SAF.
NOTICE.
QuikSCAT Antenna Rotation Problems.
Due to the QuikSCAT antenna rotation problems, SeaWinds 100km and SeaWinds
25km products are currently unavailable (data unavailable since 23
November
07.00 UTC sensing time).
FUTURE EVENTS.
04 January 2010 09:00 - 12:00 UTC.
Essential EUMETCast Maintenance.
High risk of data delays (~1 min) and possible data losses.
12 January 2010.
EARS ASCAT and ERS-2 wind products will be encoded in BUFR Edition 4
format.
Most BUFR decoding software will have no problems to read data in BUFR
Edition 4, but in order to test your ingestion systems, KNMI have made
some
test data available:
http://www.knmi.nl/scatterometer/ascat_20091130_103034_metopa_16163_ear_o_2
50_ovw.l2_bufr
(EARS ASCAT)
http://www.knmi.nl/scatterometer/scatt_20091130_113439_ers2___00000_ear_o_2
50_ovw.l2_bufr
(EARS ERS-2)
If you are using an older version of the decoding software from
http://www.knmi.nl/scatterometer/bufr_reader/, it may be necessary to
upgrade to the current software version.
If you have any questions, please do not hesitate to contact KNMI at
scat@knmi.nl.
21 January 2010.
Modifications to the Jason-1 Operational Sensor Data Record (OSDR)
filenames
in BUFR format on EUMETCast.
The change is driven by the implementation of the new WMO filename format
on
GTS.
For full details, please see :
http://www.eumetsat.int/Home/Main/News/OperationalNews/715987?l=en
26 January 2010.
GOES East and GOES West change to the calibration data contained within
the
LRIT header type #3 (Image Data Function).
For full details, please see:
http://www.eumetsat.int/Home/Main/News/OperationalNews/715828?l=en
The following EPS GDS products are available on Eumetcast.
EPS-2 PID 510 Metop AMSA operational
EPS-3 PID 510 Metop ASCAT operational
EPS-4 PID 510 Metop ATOVS operational
EPS-5 PID 510 Metop GOME operational
EPS-6 PID 510 Metop GRAS operational
EPS-7 PID 510 Metop HIRS operational
EPS-8 PID 510 Metop MHS operational
EPS-10 PID 510 Metop AVHRR operational
EPS-11 PID 510 Metop IASI operational
EPS-13 PID 510 NOAA AMSA operational
EPS-14 PID 510 NOAA ATOVS operational
EPS-15 PID 510 NOAA GAC operational
EPS-16 PID 510 NOAA HIRS operational
EPS-17 PID 510 NOAA MHS operational
EPS-18 PID 510 EPS Service News operational
EPS-19 PID 510 Test service operational
(EPS-19 may sometimes be limited to Manufacturers)
NOTES.
1. Reports for all sections should be sent to :-
Douglas Deans dsdeans@tiscali.co.uk
2. 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: 08:14 on 04 Jan 2010
Message sent using WinPack V6.80 (R)
(Prog written by Roger Barker, G4IDE/G8MZX, Silent Key 09/09/04)
Member of:
AMSAT, RSGB, GEO & RAYNET
QTH Loc - IO92gj
NGR SP 342 765
GPS 52deg 23.15min N
001deg 29.83min W
E-Mail: G4ROA@AOL.com
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