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G4ROA WXSAT @ WW 2012-04-23 10:00 15482 WX Sat Status report 23/4

From: G4ROA@GB7COV.#29.GBR.EU
To  : WXSAT@WW


                          WEATHER SATELLITES
                             ===============
POLAR APT, DIGITAL and GEOSTATIONARY WEEKLY STATUS.
  ==============================================

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

Sections 2 and 4 have updates.

SECTION 1:   POLAR  APT/LRPT  REPORT --  23rd April 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 launch expected May 23rd 2012.


SECTION 2:   POLAR  HRPT/AHRPT  REPORT -- 23rd April 2012
   ==============================================
CHANGES SINCE LAST REPORT.
Loss of images from Feng Yun 1D.
See Note 9.

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/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.

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 launch expected May 23rd 2012.


SECTION 3:   GEOSTATIONARY REPORT -- 23rd April 2012
  ===========================================
CHANGES SINCE LAST REPORT.
None.

THIS WEEK'S POSSIBLE EVENTS.
None expected.

Europe & Africa
------------------
Satellite :        Meteosat 8 (9.5E)
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 (135W approx).
Data :              GVAR (digital) - 1685.7 MHz
                        LRIT (digital) - 1691 MHz
Operational :   Yes.

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

South America
----------------
Satellite :        GOES 12 (60W)
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 (57.5E)
                     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 (145 E).
Data :             HRIT (digital) - 1687.1 MHz
                       LRIT(digital)   - 1691 MHz.
Operational :  Yes


Asia & Oceania  (Chinese Operated Satellites)
----------------------------------------------------
Satellite :          Feng Yun 2D (86.5E).
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.
None expected.

SECTION 4:   EUMETCAST  REPORT  -- 23rd April 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 added.
Metop and NOAA Global Data Service Note added.
Metop and NOAA Regional Data Service Note added.
SAF Products Note added.
Third-Party Data and Products Note updated.
Jason-2 Note added.

THIS WEEK AND  FUTURE  POSSIBLE  EVENTS.
GENERAL NOTE.
Meteosat Straylight Predictions for Winter/Spring 2012 available on
EUMETSAT
Website:
http://www.eumetsat.int/Home/Main/ServiceStatus/index.htm?l=en
(See Section "Operational Schedules")

METEOSAT 9.
24 April 2012  12:00 - 12:30 UTC.
Essential Image Processing software upgrade.
Risk of interruption of image data.

METOP AND NOAA GLOBAL DATA SERVICE.
23 April 2012  04:16 UTC orbit 28591.
ASCAT Gain Compression.
A short outage of all ASCAT products can be expected.

23 April 2012 - 15 May 2012.
ASCAT Transponder Maintenance.
Metop-A ASCAT needs to support this by performing external calibrations.
Short outages of the ASCAT GDS Level 1, soil moisture and global and
regional winds products in the vicinity of Turkey can be expected.

25 April 2012.
Metop-A In-plane manoeuvre has been cancelled.

29 April 2012 - 02 May 2012.
ASCAT external calibration.
Short outages of the ASCAT GDS Level 1, soil moisture and global and
regional winds products can be expected.
29 April 2012  07:16 UTC orbit 28678
30 April 2012  08:35 UTC orbit 28693
01 May 2012  18:16 UTC orbit 28699
02 May 2012  07:55 UTC orbit 28721

METOP AND NOAA REGIONAL DATA SERVICE.
26 April 2012.
New EARS-IASI service available on EUMETCast.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/817951?l=en

THIRD-PARTY DATA AND PRODUCTS.
10 February 2012 - 27 April 2012.
GOES West Eclipse Season.
08:00 UTC and 09:00 UTC image data may be unavailable or incomplete.

14 February 2012 - 26 April 2012.
MTSAT Eclipse Season.
14:00 UTC and 15:00 UTC image data may be unavailable or incomplete.

26 April 2012.
MODIS Total Precipitable Water products available on EUMETCast.
For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/817584?l=en

JASON-2.
25 April 2012.
Essential communications maintenance.
Risk of short interruption of services.

SAF PRODUCTS.
24 April 2012.
OSI-SAF Full Resolution Sea Surface Temperature Metagranules available on
EUMETCast.  For full details, please see:
http://www.eumetsat.int/Home/Main/News/ProductServiceNews/817586?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@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/NORAD/elements/ 

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

Message timed: 09:28 on 23 Apr 2012
Message sent using WinPack V6.80 (R)
(Prog written by Roger Barker, G4IDE/G8MZX, Silent Key 09/09/04)

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