[data-issues] bad num samples TS.DGR. .BHZ

[Philip Crotwell]

Hi

Just saw this, probably falls in the "old garbage" category, but looks
like the is a discrepancy between the header and compressed number of
samples. Chris might be better able to explaine which value comes from
where, but I think I remember that the "header" value in DHI comes
from the database, while the "decompressed" value comes from the
miniseed b1000s for the seismogram. The problem also appears for BHN
but at least for me not BHE.

If you have SOD installed, you can reproduce this with:
find_events -b 1993-07-11 -e 1993-07-11 -m 6.2 -r | find_stations -n
TS -s DGR -r | find_seismograms -c BHZ -B -2P  -E 5P

Anyway, just letting you know...

thanks,
Philip


rabbit:~/tmp crotwell$ find_events -b 1993-07-11 -e 1993-07-11 -m 6.2
-r | find_stations -n TS -s DGR -r | find_seismograms -c BHZ -B -2P
-E 5P
-117.0090  33.6500 700. DGR
-70.5700 -25.3600 30 1993_192_13_36_019 6.8MS
2009-04-29 11:06:41,911 - EventChannelPair: Event: Near Coast Of
Northern Chile | 07/11/1993 13:36:19 GMT | Mag: 6.8 | Depth 30.00 km |
(-25.36, -70.57) TS.19880404T00:00:00.000Z.DGR.
.BHZ.19930622T00:00:00.000Z Event station subsetter in progress
edu.iris.dmc.seedcodec.SteimException: Number of samples decompressed
doesn't match number in header: 3703 != 3704
        at edu.iris.dmc.seedcodec.Steim2.decode(Steim2.java:83)
        at edu.iris.dmc.seedcodec.Codec.decompress(Codec.java:129)
        at edu.iris.Fissures.seismogramDC.LocalSeismogramImpl.decodeBits(LocalSeismogramImpl.java:1395)