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Weather Satellite Report 2012/27.

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  • Douglas Deans
    WEATHER SATELLITES =============== POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS. ============================================== Author : Douglas S
    Message 1 of 1 , Jul 2, 2012
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      WEATHER SATELLITES
      ===============
      POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
      ==============================================

      Author : Douglas S Deans.
      E-mail : dsdeans@...
      Twitter : Douglas Deans @GM4VZY

      Section 4 has updates.

      SECTION 1: POLAR APT/LRPT REPORT -- 2nd July 2012
      ===========================================
      Satellite Frequency (MHz) Status Image Quality

      NOAA 15 137.620 (APT) on good. See Note 8.
      NOAA 17 137.500 (APT) on No images. See Notes 7&8.
      NOAA 18 137.9125 (APT) on good
      NOAA 19 137.100 (APT) on good but see Note 6
      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 17 when active on this frequency.
      --- 20th May 2011 update for NOAA 9. ---
      Sadly although no signals had been heard from NOAA 9 since October 2010,
      I have received 2 reports from Mike Piper and Mike Kenny confirming that
      NOAA 9 is back. Of course the only other APT satellite on 137.500 MHz
      is NOAA 17 with its stalled scan motor so the interference is not a
      problem. My thanks to Mike and Mike for the reports.

      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.
      During in-fill carrier phase this satellite can cause interference to
      NOAA 19 when footprints overlap.

      7. NOAA 17 has scan motor problems with rising motor currents.
      Constant rephase by the MIRP was causing data dropouts on all the HRPT
      stream and APT and GAC derivatives.
      Auto re-phase has now been disabled and the resulting AVHRR products are
      almost all unusable. Daily MIRP rephasing via the Stored Command Table
      began on 18 May 2010 (10/138) - at the first pass over the South Pole
      each day.
      Update 29/09/10 :- Further deterioration in scan motor performance with
      no useable data from the AVHRR instrument. Scan motor has stalled.

      8. As of 12th October 2010 at 15.00 UTC the following APT frequencies
      applied :-
      NOAA 17 137.500 MHz.
      NOAA 15 137.620 MHz.

      9. Elements are available from :-
      http://www.space-track.org and
      http://celestrak.com/NORAD/elements/

      LAUNCHES.
      Metop-B new launch target is 19th September 2012.
      (Metop-B will not have an LRPT service so launch date
      for information only).


      SECTION 2: POLAR HRPT/AHRPT REPORT -- 2nd July 2012
      =============================================
      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 1698.0 RHCP HRPT Good ( note 3)
      NOAA 17 1698.0 RHCP HRPT No images. See note 7.
      NOAA 18 1707.0 RHCP HRPT Good
      NOAA 19 1698.0 RHCP HRPT Good
      Feng Yun 1D 1700.4 RHCP CHRPT Off (see Note 9.)
      Feng Yun 3A 1704.5 see note 5.
      Feng Yun 3B 1704.5 see note 5.
      Metop-A 1701.3 RHCP AHRPT Good (note 4)
      Meteor M N1 1700 See note 6.
      NPP see Note 8.

      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 31st March 2012 :- After a short period of poorer images,
      with signs of judder, there have been improvements in the scan motor
      performance. Please see :-
      http://tech.groups.yahoo.com/group/weather-satellite-reports/message/2649

      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.
      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.
      Update: The second in the series, Feng Yun 3B was launched on
      4th November 2010. I expect the information above for 3A will
      equally apply to 3B.
      My thanks to Johnny Lin for drawing this to my attention.

      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/2098.
      Continual sporadic problems with transmission.

      7. NOAA 17 has scan motor problems with rising motor currents.
      Constant rephase by the MIRP was causing data dropouts on all the HRPT
      stream and APT and GAC derivatives.
      Auto re-phase has now been disabled and the resulting AVHRR products are
      almost all unusable.
      Daily MIRP rephasing via the Stored Command Table began on 18 May 2010
      (10/138) - at the first pass over the South Pole each day.
      Update 29/09/10 :- Further deterioration in scan motor performance with
      no useable data from the AVHRR instrument. Scan motor has stalled.

      8. As this weather satellite has no S-band transmitter, it is included for
      information only.

      9. Update 20th April 2012 :- I am grateful to Roland Ertl and Dave Wright
      for confirming loss of images from FY-1D.

      LAUNCHES.
      Metop-B new launch target is 19th September 2012.


      SECTION 3: GEOSTATIONARY REPORT -- 2nd July 2012
      ==========================================
      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 6).
      Data : HRIT (digital) and LRIT (digital)
      Operational : Yes.

      North America
      ----------------
      East.

      Satellite : GOES 13 (75° W).
      Data: GVAR (digital) - 1685.7 MHz
      LRIT (digital) - 1691 MHz
      Operational: Yes.

      West.

      Satellite : GOES 15 (135°W approx).
      Data : GVAR (digital) - 1685.7 MHz
      LRIT (digital) - 1691 MHz
      Operational : Yes.

      Satellite : GOES 14 (105°W)
      Data : In storage.

      South America
      ----------------
      Satellite : GOES 12 (60°W)
      Data : GVAR (digital) - 1685.7 MHz
      Operational : Yes on South American project.

      Asia (Russian Operated Satellite)
      --------------------------------------

      Satellite : ELECTRO-L (76° E)
      Data : HRIT/LRIT.
      Operational : Yes.

      Asia (European Operated Satellites)
      ----------------------------------------
      Satellite : Meteosat 7 (57.5°E)
      HRI (digital) - 1691 MHz
      Wefax (analogue) occasionally for ranging purposes
      only.
      Operational : Yes.

      Asia (Indian Operated Satellite)
      --------------------------------
      Satellite : Metsat
      Data : None available.
      Operational : Yes.

      Satellite : Insat 3A (Note 2.)
      Data : VHRR (digital) 2599 MHz
      Operational : Yes.

      Asia (Korean Operated Satellite)
      -----------------------------------
      Satellite : COMS (128.2° E)
      Data : HRIT (digital) and LRIT (digital)
      Operational : Yes.

      Asia & Oceania (Japanese Operated Satellites)
      ------------------------------------------------
      Satellite : MTSAT-1R (140° E) (note 4.)
      Data : HRIT (digital) - 1687.1 MHz.
      LRIT(digital) - 1691 MHz.
      (Note 5.)
      Operational : yes

      Satellite : MTSAT-2 (145º E).
      Data : HRIT (digital) - 1687.1 MHz
      LRIT(digital) - 1691 MHz.
      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. Insat 3A is a combined data and meteorological satellite.

      3. For those interested in EMWIN data, the following sats/frequencies apply.

      GOES 15 (135 W) 1692.700 MHz
      GOES 13 (75 W) 1692.700 MHz
      For further info. there are many sources but the following is
      particularly informative:-
      http://iwin.nws.noaa.gov/emwin/user-intro.htm

      4. This satellite is also known as HIMAWARI 6.

      5. HiRID and WEFAX was discontinued on 12th March 2008. It was replaced
      with HRIT/LRIT (after many months of dual dissemination).

      6. Only LRIT (1691.0 MHz) is provided in direct readout.
      Full HRIT and LRIT service from Eumetcast.


      LAUNCHES.
      MSG-3 (Meteosat 10 when launched) expected to launch June 19th 2012 has been
      delayed due to issue with EchoStar 17 which is on the same launch (dual
      load). Launch dated target now 5th July 2012.

      SECTION 4: EUMETCAST REPORT -- 2nd July 2012
      =======================================

      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 updated.
      Meteosat 8 (RSS) Note updated.
      IODC Note added.
      Metop and NOAA Global Data Service Note updated.
      Metop and NOAA Regional Data Service Note updated.
      Third-Party Data and Products Note added.

      THIS WEEK AND FUTURE POSSIBLE EVENTS.
      METEOSAT 9.
      04 July 2012 10:00 UTC - 14:00 UTC.
      Essential ground segment maintenance.
      Risk of delays to Meteosat-9 products

      METEOSAT 8 (RSS).
      04 July 2012 10:00 UTC - 14:00 UTC.
      Essential ground segment maintenance.
      Risk of delays to Meteosat-8 products.

      Until Further Notice.
      Meteosat-8 is currently operating in Earth Mode due to a problem with the
      sun sensor data on board.
      After modifying the image processing system the RSS image quality is
      currently back to nominal.

      IODC.
      03 July 2012 09:28 UTC.
      Water Vapour Channel gain change from 12 to 11

      METOP AND NOAA GLOBAL DATA SERVICE.
      03 July 2012.
      Calibration key-data update.
      The update will affect the GOME-2 GDS level 1B products.
      For full details, please see:
      http://www.eumetsat.int/Home/Main/Satellites/Metop/Instruments/sp_2011011017745548

      04 July 2012 05:12 - 09:12 UTC.
      IASI External Calibration.
      IASI GDS Level 1C and Level 2 products will not be available.

      METOP AND NOAA REGIONAL DATA SERVICE.
      27 June 2012 - 03 July 2012:
      Saint-Denis: Update of processing system.
      Risk of delays for EARS-ATOVS and EARS-ASCAT products from Saint-Denis.

      02 July 2012 - 06 July 2012:
      Athens: Update of acquisition system.
      Risk of delays for all EARS products from Athens.

      THIRD-PARTY DATA AND PRODUCTS.
      Effective immediately.
      Jason-1 Product filename changes, following the move of Jason-1 to a
      geodetic orbit.
      For full details, please see:
      http://www.eumetsat.int/Home/Main/News/ProductServiceNews/820254?l=en

      FUTURE EVENTS.
      Jason-2.
      End of July 2012
      Jason-2 processor update to OGDR-D standard, including a product format
      change for the netCDF products.
      Additionally, update of the OGDR-BUFR encoding to user version 16 of the
      ECMWF BUFR libraries.
      For full details, please see:
      http://www.eumetsat.int/Home/Main/News/ProductServiceNews/819046?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-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-9 PID 510 Metop SEM operational
      EPS-10 PID 510 Metop AVHRR operational
      EPS-11 PID 510 Metop IASI operational
      EPS-12 PID 510 Metop HKTM operational
      EPS-13 PID 510 NOAA AMSA 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-Africa PID 300 EPS Europe/Africa operational
      EPS-Global PID 300 EPS Global data operational
      (EPS-19 may sometimes be limited to Manufacturers)

      NOTES.

      1. Reports for all sections should be sent to :-
      Douglas Deans. dsdeans@...

      2. For further information on the Eumetcast service see :-
      David Taylor's web site : http://www.satsignal.eu
      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/
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