|
|
|
|
|
|
WEATHER SATELLITES
============
POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
============
Author : Douglas S Deans. dsdeans@tiscali.
Section 4 has updates.
SECTION 1: POLAR APT/LRPT REPORT -- 8th February 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. Although classed as LRPT it does not
conform to the CGMS standard.
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-
http://celestrak.
LAUNCHES.
Possibility of Okean 5 launch 2010.
Possibility of Sich 2M launch in April 2010.
SECTION 2: POLAR HRPT/AHRPT REPORT -- 8th February 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
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.
LAUNCHES.
None due in the near future.
SECTION 3: CONTINENTAL GEOSTATIONARY WORLD
============
WEATHER SATELLITE REPORT -- 8th February 2010
============
CHANGES SINCE LAST REPORT.
None.
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.
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.
Web Sites for more information:
http://www.ssd.
http://cimss.
LAUNCHES.
GOES P launch delayed to 1st March 2010.
COMS. Launch of Korea's first Geostationary weather satellite
expected first half of 2010 (My thanks to Peter Wakelin
for this information)
SECTION 4: EUMETCAST REPORT -- 8th February 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.
Meteosat 9 Note added.
Meteosat 8 (RSS) Note added.
IODC Note added.
Metop and NOAA Global Data Service Note updated.
Metop and NOAA Regional Data Service Note updated.
THIS WEEK AND FUTURE POSSIBLE EVENTS.
METEOSAT 9.
09 February 2010 10:00-11:00 UTC.
Essential Ground Segment Maintenance.
Risk of interruption to the following services.
0 Deg. SEVIRI High Rate Meteosat-9
0 Deg. SEVIRI Low Rate Meteosat-9
0 Deg. Meteorological Products Meteosat-9
GOES & MT-SAT Satellite Data
Meteorological Data Distribution
Data Collection and Retransmission Service
METEOSAT 8 (RSS).
09 February 2010 09:00 UTC - 11 February 2010 09:00 UTC.
Monthly RSS interruption.
Rapid Scanning Service will be suspended for scheduled full earth scanning
and Ground Segment maintenance.
Full earth images, if any, will not be disseminated.
IODC.
09 February 2010 - 30 March 2010.
Meteosat-7 Spring Eclipse Season.
Slots 39-44 may not be scanned.
METOP AND NOAA GLOBAL DATA SERVICE.
01/02/2010.
IASI L2 products.
Following an upgrade of the ECMWF forecast model, a small amount of
out-of-range surface pressure appear in the EPS IASI level 2 products since
01/02/2010. This causes gaps in the products amounting to ca. 25mn/day for
all Near Real Time BUFR products. Some of the available products may also be
degraded and flagged accordingly. EUMETSAT is working to mitigate the issue.
08 February 2010 - 10 February 2010.
ASCAT external calibration. Short interruptions can be expected to ASCAT
Level 1 data at:
08 February 2010 18:19 UTC orbit 17163
09 February 2010 08:17 UTC orbit 17171
10 February 2010 19:18 UTC orbit 17192
METOP AND NOAA REGIONAL DATA SERVICE.
09 February 2010 10:00-12:00 UTC.
EARS communications network maintenance.
Risk of delays for Maspalomas data.
10 February 2010 9:00-12:00 UTC.
EARS communications network maintenance.
Risk of delays for Athens data.
11 February 2010 13:00-16:00 UTC.
EARS communications network maintenance.
Risk of delays for Gander and Edmonton data.
11 February 2010.
Addition of the Moscow station to the EARS-ATOVS service For full details,
please see :
http://www.eumetsat
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.
2. For further information on the Eumetcast service see :-
David Taylor's web site
http://www.satsigna
or Satellite Tools, MSG Data
Manager.
or the Eumetsat web site www.eumetsat.
GENERAL
=======
For further weather satellite related information join GEO, Group for Earth
Observation, and receive the informative quarterly magazine. See :-
http://www.geo-
To download element sets for all satellites visit the following sites :
http://www.space-
http://celestrak.
|
|
|
|
|
|