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<p>Dear Data Centers,</p>
<p>From some hour ago station SVTL is corrupting the merged
navigation files across the IGS due to lingering rollover effects,
this affectes several automatic systems around the world. The
station SVTL is producing very incorrect navigation files with the
catastrophic effect of setting more than half of the GPS
satellites as unhealthy which is VERY wrong!</p>
<p>Please exclude all SVTL data files from the navigation file
merging process (all brdc/ hour files) until further notice and
re-generate the recent merged navigation files . Thanks.</p>
<p>This is what the svtl files contain ... a mess!! I have already
written to the station to stop sending incorrect files and to take
measures to correct the problem.<br>
</p>
<p> 167: nacho@mac03> more svtl100b.19n <br>
2.10 N: GPS NAV DATA RINEX
VERSION / TYPE<br>
JPS2RIN V1.2.25 JAVAD GNSS 10-Apr-2019 01:59 PGM /
RUN BY / DATE <br>
.1118D-07 .1490D-07 -.5960D-07 -.5960D-07 ION
ALPHA<br>
.8806D+05 .1638D+05 -.1966D+06 -.1311D+06 ION
BETA<br>
-.372529029846D-08 -.621724893790D-14 503808 0
DELTA-UTC: A0,A1,T,W<br>
18 LEAP
SECONDS<br>
END OF
HEADER <br>
1 99 8 25 2 0 0.0 -.198496971279D-03 -.807176547823D-11
.000000000000D+00<br>
.690000000000D+02 -.310312500000D+02 .407695553585D-08
.264307016689D+01<br>
-.169686973095D-05 .863176246639D-02 .101216137409D-04
.515366104698D+04<br>
.266400000000D+06 -.577419996262D-07 -.210293822457D+01
-.143423676491D-06<br>
.974915508161D+00 .191937500000D+03 .686769954200D+00
-.760960268478D-08<br>
.316798910232D-09 .100000000000D+01 .102400000000D+04
.000000000000D+00<br>
.200000000000D+01 .000000000000D+00 .558793544769D-08
.690000000000D+02<br>
.266400000000D+06<br>
1 19 4 10 1 30 0.0 -.198482477572D-03 -.807531819191D-11
.000000000000D+00<br>
.114000000000D+03 -.256015625000D+02 .409838499990D-08
.238064968064D+01<br>
-.134389847517D-05 .863080541603D-02 .100927427411D-04
.515366096307D+04<br>
.264600000000D+06 -.110827386379D-06 -.210292451118D+01
-.138767063618D-06<br>
.974914759879D+00 .192453125000D+03 .686646588512D+00
-.764901211094D-08<br>
.315727437029D-09 .100000000000D+01 .204800000000D+04
.000000000000D+00<br>
.230400000000D+04 .100000000000D+01 .558793544769D-08
.114000000000D+03<br>
.264600000000D+06<br>
<br>
</p>
<p><br>
</p>
<pre class="moz-signature" cols="72">--
Best regards,
Nacho
_______________________________________________________________
Ignacio (Nacho) Romero
Aerospace Engineer, PhD
CSC Ltd @ ESA/ESOC/OPS-GN
Satellite Navigation Engineer @ ESOC Navigation Support Office
IGS Infrastructure Committee Chair
<a class="moz-txt-link-abbreviated" href="http://www.navigation-office.esa.int">www.navigation-office.esa.int</a>
<a class="moz-txt-link-abbreviated" href="http://www.canaryspaceconsulting.co.uk">www.canaryspaceconsulting.co.uk</a>
_______________________________________________________________
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