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dorisreport             16-Jun-2017 16:20:45 Message No 4328
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Author: "Lemoine, Frank G. (GSFC-61A0)" <frank.g.lemoine@nasa.gov>
Subject: Delivery of gscwd29 series, using DPOD2014,  (January 6, 2008 to


SUMMARY OF GSC DORIS SUBMISSION for Jan 6, 2008 to Dec 27, 2015
wd29 SINEX files
June 16, 2017
Authors: Douglas S. Chinn, Frank G. Lemoine

This delivery consists of SINEX files in Normal equation (NEQ) format from
the weeks of 2008-DOY006 to 2015-DOY361. This is just an extension of the
wd29 series we delivered last week for 2016-DOY003 to 2017-DOY085.
The wd29 series replicates the wd28 series in terms of data and satellite
content but uses DPOD2014 instead of DPOD2008 for the
apriori station coordinates.

The average WRMS is as follows:
Series    Time Period    WRMS (mm)   Reference
gscwd28   2008-2016.0     11.75      DPOD2008
gscwd29   2008-2016.0       7.39      DPOD2014

Regarding the scale we find that for gscwd28, the
average scale is ~15 mm (w.r.t. DPOD2008/ITRF2008) whereas for gscwd29 the
average scale is ~5 mm (2008-2011) and ~10 mm (2012-2016)
   (w.r.t. DPOD2014/ITRF2014)

We have not altered the Dynamic edit-multiplier criterion (envisat, SPOT-4)
whose present defaults are higher than the other satellites. This will
be changed at a future time.

The relationship to our previous series (ITRF2014, Lemoine et al., 2016)
is as follows:

gscwd26: ITRF2014 series (Lemoine et al., 2016, Adv. Space Res.)
gscwd27: gscwd26 + SARAL
gscwd28: gscwd27 + changes to solar-array orientation modeling described
         below.
gscwd29: gscwd28 replacing DPOD2008_cls_1.15 with DPOD2014_v04.

For wd29, we reconverged the orbits using the new a priori station
set (DPOD2014_v04) instead of DPOD2008_cls_1.15.
No other changes were made.

The following is a summary of the RMS of fits in mm/sec
for the two sets of of orbit series.

Satellite   wd28     wd29
   c2     0.40900  0.41172
   en     0.45936  0.45939
   hy     0.40976  0.40786
   j1     0.40566  0.40383
   j2     0.38847  0.38738
   s2     0.39815  0.39729
   s4     0.43783  0.43693
   s5     0.40342  0.40128
   sa     0.41146  0.40986


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