[IGSMAIL-6115]: Three new GLONASS-M satellites active

[Stefan Schaer]

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IGS Electronic Mail      23 Mar 10:15:20 PDT 2010      Message Number 6115
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Author: Stefan Schaer


Dear IGS colleagues,

We got confronted with first IGS tracking data of the three new
GLONASS-M satellites launched on 01 Mar 2010, namely:

   R23 (732) on 19 Mar 2010 (day 078)
   R22 (731) on 19 Mar 2010 (day 078)
   R24 (735) on 20 Mar 2010 (day 079)

With these three new satellites, the GLONASS-M constellation now
consists of 21 satellites.

It is interesting that the the L-band transmitter of the previous R23
(714) was active until 00:29 of 19 Mar 2010 (day 078). The transmitter
of the new R23 (732) has been activated approximately 8 hours after
deactivation of the predecessor. The L-Band transmitters of all three
new GLONASS-M satellites have been activated finally within just 24
hours. Moreover, it should be noted that the previous occupants of R23
and R22 (714 and 726) have been relegated to a "spare" status.

Remark: An obvious R23 tracking failure concerning JPS receiver models
seems to be caused by the quick R23 constellation change mentioned.

The CODE GNSS orbit products include currently up to 51 satellites (31
GPS plus 20 GLONASS). G01 is marked unhealthy, G25 is unoccupied; R15
is again active, but marked unusable (after a recent outage). Once
more, it should be emphasized that current data of R09 (722) is
considered useless and is therefore generally excluded from our
analysis.

IMPORTANT NOTE: The list of IGS GNSS receivers which are providing
incomplete (or no) GLONASS tracking data includes:

bako:  LEICA GRX1200GGPRO  6.02/3.015
cpxf:  LEICA GRX1200GGPRO  6.02/3.015
hnpt:  LEICA GRX1200GGPRO  7.53
iddr:  LEICA GRX1200GGPRO  5.62
ilha:  LEICA GRX1200GGPRO  5.62
isba:  TRIMBLE NETR5       NP 4.10 / SP 3.55
mdvj:  TPS NETG3           3.3 DEC,22,2008 P6
mtka:  ASHTECH Z18         0065      ZT16
ntus:  LEICA GRX1200GGPRO  7.53/3.015
ntz1:  TPS NETG3           3.2 DEC,12,2007
nurk:  TPS NETG3           3.3
nya1:  TRIMBLE NETR8       4.03
rcmn:  LEICA GRX1200GGPRO  7.53/3.014
spt0:  JPS E_GGD           2.6.1 JAN,10,2008
sunm:  JPS LEGACY          JPS_4 / 2.6.1 JAN,1
tlse:  TRIMBLE NETR5       4.03
tro1:  TRIMBLE NETR8       4.03
unfe:  ASHTECH Z18         0065      ZT17

Please be referred to the following regularly updated lists:

http://www.aiub.unibe.ch/download/igsdata/odata_glonass_incomplete.txt
http://www.aiub.unibe.ch/download/igsdata/odata_gps_incomplete.txt
http://www.aiub.unibe.ch/download/igsdata/odata_gnss_incomplete.txt

http://www.aiub.unibe.ch/download/igsdata/odata_glonass_day.txt
http://www.aiub.unibe.ch/download/igsdata/odata_gps_day.txt
http://www.aiub.unibe.ch/download/igsdata/odata_gnss_day.txt
http://www.aiub.unibe.ch/download/igsdata/odata_mixed_day.txt

http://www.aiub.unibe.ch/download/igsdata/odata_glonass_receiver.txt
http://www.aiub.unibe.ch/download/igsdata/odata_gps_receiver.txt
http://www.aiub.unibe.ch/download/igsdata/odata_gnss_receiver.txt
http://www.aiub.unibe.ch/download/igsdata/odata_mixed_receiver.txt

http://www.aiub.unibe.ch/download/igsdata/tracking_glo_neg_freq_not_ready.txt
http://www.aiub.unibe.ch/download/igsdata/tracking_no_glonass.txt
http://www.aiub.unibe.ch/download/igsdata/tracking_glonass.txt
http://www.aiub.unibe.ch/download/igsdata/tracking_gps.txt
http://www.aiub.unibe.ch/download/igsdata/tracking_gnss.txt

See also IGS Mails 5650, 5668, 5695, 5824, 5854, 5898:

http://igscb.jpl.nasa.gov/mail/igsmail/2007/msg00130.html
http://igscb.jpl.nasa.gov/mail/igsmail/2007/msg00148.html
http://igscb.jpl.nasa.gov/mail/igsmail/2008/msg00017.html
http://igscb.jpl.nasa.gov/mail/igsmail/2008/msg00146.html
http://igscb.jpl.nasa.gov/mail/igsmail/2008/msg00176.html
http://igscb.jpl.nasa.gov/mail/igsmail/2009/msg00024.html

Best regards,

The CODE AC Team