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

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

Section 4 has updates.

SECTION 1: POLAR APT/LRPT REPORT 20th April 2015.
==========================================
Satellite Frequency (MHz) Status Image Quality

NOAA 15 137.620 (APT) on good
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 1
Metop-B No LRPT service
Meteor M N1 137.100 (LRPT) off see Note 6
Meteor M N2 Part commissioning (LRPT operational 137.100 but with
occasional loss of imagery).

CHANGES SINCE LAST REPORT.
None.

THIS WEEK'S POSSIBLE EVENTS.
None expected.

NOTES.
1. 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).

2. NOAA 14 was decommissioned on 23rd May 2007.

3. NOAA 12 was decommissioned on 10th August 2007.

4. NOAA 17 was decommissioned on 10th April 2013.

5. NOAA 16 was decommissioned on 9th June 2014.

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.
Contact lost with satellite on 23rd September 2014.

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

LAUNCHES.
None expected.

SECTION 2: POLAR HRPT/AHRPT REPORT 20th April 2015.
============================================
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 18 1707.0 RHCP HRPT Good
NOAA 19 1698.0 RHCP HRPT Good
Feng Yun 3A 1704.5 RHCP see note 6.
Feng Yun 3B 1704.5 RHCP see note 6.
Feng Yun 3C 1701.3 RHCP see note 9.
Metop-A 1701.3 RHCP AHRPT Good (note 5)
Metop-B 1701.3 RHCP AHRPT Good.
Meteor M N1 1700 See note 7.
Meteor M N2 1700 commissioning
NPP see Note 8.

NOTES.

1. NOAA 14 was decommissioned on 23rd June 2007.

2. NOAA 12 was decommissioned on 10th August 2007.

3. NOAA 17 was decommissioned on 10th April 2013.

4. NOAA 16 was decommissioned on 9th June 2014.

5. 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

6. 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.

7. 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.
Contact lost with satellite 23rd September 2014.

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

9. I am grateful to David Wright of Dartcom (http://www.dartcom.co.uk) for
providing up to date information for Feng Yun 3C.
Now fully operational but the Chinese have changed the data rate compared
to FY-3A and B. FY-3C DB downlink data rate is 3.9 Mbps after RS
Encoding.
Frequency is also different - it is on 1701.3 MHz same frequency as Metop
A/B. It still requires a special AHRPT receiver like FY-3A/B. They have
also changed the polarisation of the X-Band downlink to LHCP.

LAUNCHES.
None expected.

SECTION 3: GEOSTATIONARY REPORT 20th April 2015.
==========================================
CHANGES SINCE LAST REPORT.
None.

THIS WEEK'S POSSIBLE EVENTS.
None expected.

Europe & Africa
------------------
Satellite : Meteosat 8 (3.5E)
Data : HRIT (digital) and LRIT (digital).
Operational : No. Standby. Note when operational
there is no direct readout LRIT.

Satellite : Meteosat 9 (9.5 E) (note 6).
Data : HRIT (digital) and LRIT (digital)
Operational : Yes (RSS).

Satellite : Meteosat 10 (0).
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).
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational : Yes.

Satellite : GOES 14 (105W).
Data : GVAR (digital) - 1685.7 MHz
LRIT (digital) - 1691 MHz
Operational: Standby.

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

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

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.

Satellite: Insat 3D
Data : HRIT/LRIT 4781 MHz
Sounder 4798 MHz.
Operational : No. Commissioning.

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 : No.

Satellite : MTSAT-2 (145 E).
Data : HRIT (digital) - 1687.1 MHz
LRIT(digital) - 1691 MHz.
Operational : Yes

Satellite : Himawari 8.
Data : No direct dissemination.
HimawariCast service only.
Operational : No. Commissioning.
Expected to be operational mid 2015.

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.

Satellite: Feng Yun 2F (112.5 E).
Data: SVISSR (digital) and LRIT (digital).
Operational: Standby but used for regional scanning.

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.

7. GOES-12 was decommissioned on 16th August 2013.

LAUNCHES.
MSG-4 (Meteosat 11 after launch) launch confirmed as 2nd July 2015.

SECTION 4: EUMETCAST REPORT 20th April 2015.
======================================

Service Status Eutelsat 10A Satellite (10 E)

EARS On Transponder C4: 11263 MHz
Meteosat 8 Off Transponder C4: 11263 MHz
Meteosat 9 On Transponder C4: 11263 MHz
Meteosat 10 On Transponder C4: 11263 MHz
DWDSAT On Transponder C4: 11263 MHz
EPS(Metop-A) On Transponder C4: 11263 MHz
EPS(Metop-B) On Transponder C4: 11263 MHz
Jason On Transponder C4: 11263 MHz

CHANGES SINCE LAST REPORT.
Meteosat 10 Note added.
Meteosat 9 (RSS) Note added.
Meteosat 7 (IODC) Note added.
Metop, S-NPP and NOAA Global Data Service Note updated.
Metop AHRPT Direct Readout Note updated.
Regional Data Service Note added.
SAF Products Note added.
Third-Party Data and Products Note updated.
Future Events Note updated.

GENERAL NOTE.
Meteosat Straylight.
Meteosat Straylight Predictions for Winter/Spring 2015 are available on
EUMETSAT website:
http://www.eumetsat.int/website/home/Data/ServiceStatus/index.html
(See section Meteosat > Straylight Predictions (XML))

METEOSAT 10.
22 April 2015 09:00 UTC.
Introduction of MSG MPEF (Meteorological Product Extraction Facility)
Release 2.1.
Main changes in this release include a new version of RTTOV (Radiative
Transfer Model) and improvements to the OCA (Optimal Cloud Analysis)
product.
For full details and test data (for both EUMETCast and GTS), see:
http://www.eumetsat.int/website/home/News/DAT_2602960.html

22 April 2015 09:00 UTC
An outage of up to 1 hour, followed by a high risk period of 3 hours,
associated to the MSG MPEF Release 2.1 (see above) can be expected for the
0-degree service.

22 April 2015 13:00 - 13:15 UTC
Essential ground segment maintenance.
During this maintenance period there is a risk of interruption to the
0-Degree Service.

METEOSAT 9 (RSS).
22 April 2015 13:00 - 13:15 UTC.
Essential ground segment maintenance.
During this maintenance period there is a risk of interruption to the Rapid
Scan Service.

22 April 2015.
Addition of alternative calibration coefficients to the L1.5 header for
Meteosat-9, based on GSICS inter-calibration. This is done as part of the
MSG MPEF Release 2.1 (see announcement above).
For full details, see:
http://www.eumetsat.int/website/home/News/DAT_2602960.html

22 April 2015 09:00 UTC.
An outage of up to 1 hour, followed by a high risk period of 3 hours,
associated to the MSG MPEF Release 2.1 (see above) can be expected for the
RSS service.

METEOSAT 7 (IODC).
21 April 2015 - 05:58 UTC.
Meteosat-7 East West Station Keeping Manoeuvre.
Users may observe degraded image quality for up to 6 hours following the
manoeuvre.

METOP, S-NPP AND NOAA GLOBAL DATA SERVICE.
20 April 2015 14:08 UTC.
Metop-A - ASCAT Gain Compression.
A short outage of all ASCAT products can be expected

21 April 2015.
18:55 - 19:55 UTC (Metop-A)
19:45 - 21:26 UTC (Metop-B)
GOME-2 monthly measurements of GOME-2 polarisation (PMD) data in raw readout
mode (PMDRAW).
Near real-time products from O3M SAF (L2 NTO) will be affected (see SAF
PRODUCTS below).

METOP AHRPT DIRECT READOUT.
21 April 2015 08:31 - 10:40 UTC.
Metop-A - SEM TED in flight calibration.
An outage of all SEM products can be expected at these times

21 April 2015 08:31 - 08:37 UTC (Metop-A)
21 April 2015 09:25 - 09:31 UTC (Metop-B)
SEM MPED in flight calibration.
A short outage of all SEM products can be expected at these times.

REGIONAL DATA SERVICE.
22 April 2015 09:00 UTC.
Metop-B data from the Canadian Gander HRPT station will be added to the
EARS-ATOVS, - AVHRR, -ASCAT, -IASI and -NWC services.
Metop-A data from the Canadian Gander HRPT station will be added to the
EARS-ATOVS, - AVHRR, -ASCAT and -IASI services.
Metop-B data from the Canadian Edmonton HRPT station will be added to the
EARS-ATOVS and -IASI services.

SAF PRODUCTS.
21 April 2015 18:55 - 19:55 UTC (Metop-A)
19:45 - 21:26 UTC (Metop-B)
GOME-2 operations (see above).
O3M SAF Near Real Time Total Column products (Total Column Ozone, the Total
Column NO2, and the Tropospheric NO2) will be unavailable.

THIRD-PARTY DATA AND PRODUCTS.
10 March 2015 - 25 April 2015.
MTSAT-2 Eclipse Operations.
The 15:00 image may be degraded.

23 April 2015.
SSMIS data from the DMSP-F18 satellite available on EUMETCast Europe For
full details, see: www.eumetsat.int/website/home/News/DAT_2616159.html

FUTURE EVENTS.
Metop, S-NPP and NOAA Global and Regional Data Service.
28 April 2015 (postponed from 22 April).
Metop-A In-plane manoeuvre.
SEM and GOME data 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.

05 May 2015 - 07 May 2015.
Essential ground segment maintenance.
During this maintenance period there is a risk of short interruption or
delay of all METOP-B products.

SAF Products.
28 April 2015.
Discontinuation of OSI SAF Metop-A ASCAT 12.5 km Hamming window based winds.
For full details, see:
http://www.eumetsat.int/website/home/News/DAT_2568133.html

Data Centre.
28 April 2015 08:00 UTC - 30 April 2015 15:00 UTC.
Data Centre Servers Major Upgrade.
During this time, no orders will be processed and the data set catalogue
will not be updated.

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/


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