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G4ROA  > WXSAT    06.06.11 08:43l 420 Lines 14814 Bytes #999 (0) @ WW
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Subj: WX Sat Status report 6/6
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                          WEATHER SATELLITES
                             ===============
POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
  ==============================================

Author :   Douglas S Deans.    dsdeans@btinternet.com
Sections 3 and 4 have updates.

SECTION 1:   POLAR  APT/LRPT  REPORT --  6th June 2011
  ============================================
    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.
None due in the near future.


SECTION 2:   POLAR  HRPT/AHRPT  REPORT -- 6th June 2011
   ==============================================
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         Mixed ( 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            Good
Feng Yun 3A        see note 5.
Feng Yun 3B        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.

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/20
98.
    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.

LAUNCHES.
NPOESS Preparatory Project (NPP) satellite launch set for 25th October
2011.


SECTION 3:   GEOSTATIONARY REPORT -- 6th June 2011
  ===========================================
CHANGES SINCE LAST REPORT.
Meteosat 6 removed after decommissioning.

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 11 (135°W)
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
                       LRIT (digital) -1691 MHz
Operational :  Yes on South American project.

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

Satellite :     GOMS N2 / ELECTRO-L1 (76° E).
                    sometimes called ELEKTRO -L/N1
Data :           HRIT/LRIT.
Operational :  No, but successfully launched 20/01/2011

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 :  No.  Commissioning.

Asia & Oceania  (Japanese Operated Satellites)
------------------------------------------------
Satellite :       MTSAT-1R (140° E) (note 4.)
Data :            HRIT (digital) and LRIT(digital) on 1691 MHz.
                     (Note 5.)
Operational :  Standby but used to relay direct readout data from MTSAT-2.

Satellite :        MTSAT-2 (145º E).
Data :             HRIT (digital) and LRIT(digital) on 1691 MHz.
Operational :  Yes (see above for MTSAT-1R)

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 11   (135 W)  1690.725 MHz
    GOES 13   (75 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

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.
None due in near future.

SECTION 4:   EUMETCAST  REPORT  -- 6th June 2011
  ========================================

     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.
Metop and NOAA Global Data Service Note updated.
Third-Party Data and Products Note updated.
Future Events Note updated.

THIS WEEK AND  FUTURE  POSSIBLE  EVENTS.
METOP AND NOAA GLOBAL DATA SERVICE.
07 June 2011 around 12:00 UTC TBC.
Start of the Demonstrational Phase for Global Metop Improved Timeliness.
For full details please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/807551?l=en

09 June 2011  13:12 UTC.
Metop-A In-Plane Manoeuvre.
SEM data will be unavailable.
GOME data and products will be unavailable.
A temporary degradation of the quality of GRAS Level 1 products is to be
expected starting at the time of the manoeuvre.
All AMSU-A, ASCAT, ATOVS, AVHRR, HIRS, IASI and MHS products may have
temporarily degraded quality geo-location data after the time of the
manoeuvre.
Exact outage times to be announced closer to the day of the manoeuvre.

THIRD-PARTY DATA AND PRODUCTS.
09 June 2011.
Number of Days without Rain products available on EUMETCast.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/807368?l=en

09 June 2011.
Refined Ocean Products and Composite Ocean Products for the 2 AMESD
regions
available on EUMETCast.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/807366?l=en

FUTURE EVENTS.
Third-Party Data and Products.
15 June 2011.
Addition of products from Terra and Geographical Filtering of MODIS L1 and
Geo-Location Data on EUMETCast.
MODIS products will undergo a number of changes.
For full details please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/807549?l=en

Meteosat 9.
15 June 2011  08:30 UTC.
Cloud Top Height Product for the 0 Degree Operational Service.
Frequency of distribution of the Cloud Top Height Product increased from
hourly to every 15 minutes.

Metop and NOAA Regional Data Service.
16 June 2011.
EARS-ATOVS will include provision of products from Metop-A from NOAA
stations in Miami, Moneterey and Ewa Beach.

Metop AHRPT Direct Readout.
14 June 2011 12:45 - 16:45 UTC.
Internal HRPT Admin Message tests.
Nominal content of the Admin Message will not be available during this
time.



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-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@btinternet.com

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
============================
 
73's - Adrian, G4ROA @ GB7COV

Message timed: 08:16 on 06 Jun 2011
Message sent using WinPack V6.80 (R)
(Prog written by Roger Barker, G4IDE/G8MZX, Silent Key 09/09/04)

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