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  1. GMAT
  2. GMT-2011

Larger angular momentum errors in 09/15 build

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      The 09/15 build contains numeric fixes to GMT-799. That build is showing reduced errors in a lot of cases, but increased errors in angular momentum for several interplanetary cases. I've attached a few test cases.

      In particular, Venus1_2Body_VenusFixed has an increase of 30cm in hX, and Venus1_2Body_VenusMJ2000Eq has an increase of 25cm in hY.

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            jjkparker Joel Parker added a comment -

            Created an attachment (id=1138)
            CSParams_GMAT_Moon_2Body_MoonFixed.m

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            jjkparker Joel Parker added a comment - Created an attachment (id=1138) CSParams_GMAT_Moon_2Body_MoonFixed.m
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            jjkparker Joel Parker added a comment -

            The numbers I quoted below aren't clear: the errors are 0.3 m^2/s and 0.25 m^2/s, which is 3000 cm^2/s and 2500 cm^2/s, respectively.

            Show
            jjkparker Joel Parker added a comment - The numbers I quoted below aren't clear: the errors are 0.3 m^2/s and 0.25 m^2/s, which is 3000 cm^2/s and 2500 cm^2/s, respectively.
            Hide
            gmat_wcs Wendy Shoan added a comment -

            CCB: P1

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            gmat_wcs Wendy Shoan added a comment - CCB: P1
            Hide
            shughes Steven Hughes added a comment -

            assigning to myself for analysis

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            shughes Steven Hughes added a comment - assigning to myself for analysis
            Hide
            jjkparker Joel Parker added a comment -

            These particular tests are very hard to diagnose, but I added new tests specifically for HX, HY, HZ for the CSParams_Moon case. I see no numeric issues.

            Show
            jjkparker Joel Parker added a comment - These particular tests are very hard to diagnose, but I added new tests specifically for HX, HY, HZ for the CSParams_Moon case. I see no numeric issues.

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