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  1. GMAT
  2. GMT-6941

Possible error in first DSN_TCP scaled residual

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      Description

      The first DSN_TCP scaled residual in the EKF_ErrorModel_NoiseSigma_DSN test case covariance report seems out-of-family.

           0  10 Jun 2010 01:12:00.000  DSN_SeqRange        MAD,LEOSat,MAD                SIG               3.000000
           1  10 Jun 2010 01:12:00.000  DSN_TCP             MAD,LEOSat,MAD                SIG               {color:red}2.914728{color}
           2  10 Jun 2010 01:13:00.000  DSN_SeqRange        MAD,LEOSat,MAD                SIG               2.999787
           3  10 Jun 2010 01:13:00.000  DSN_TCP             MAD,LEOSat,MAD                SIG               3.008312
           4  10 Jun 2010 01:14:00.000  DSN_SeqRange        MAD,LEOSat,MAD                SIG               3.000000
           5  10 Jun 2010 01:14:00.000  DSN_TCP             MAD,LEOSat,MAD                SIG               2.999800
           6  10 Jun 2010 01:15:00.000  DSN_SeqRange        MAD,LEOSat,MAD                SIG               3.000000
           7  10 Jun 2010 01:15:00.000  DSN_TCP             MAD,LEOSat,MAD                SIG               2.999584
           8  10 Jun 2010 01:16:00.000  DSN_SeqRange        MAD,LEOSat,MAD                SIG               3.000000
           9  10 Jun 2010 01:16:00.000  DSN_TCP             MAD,LEOSat,MAD                SIG               2.999110
      

      It is not as close to the expected value of 3.0 as all the other scaled residuals. Not sure if this is a bug or just a feature of how DSN_TCP works.

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