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Author: cristiapi
UPDATE for CeBoMo part #1 and #2
http://www.orbithangar.com/searchid.php?ID=6782
http://www.orbithangar.com/searchid.php?ID=6783
On 24-Jul-2015 NASA’s NAIF updated the Saturn’s moons ephemeris using Cassini data through 2-Feb-2015.
This update contains the new data files for the Saturn’s moons included in CeBoMo (part #1 for the default satellites and part #2 for Phoebe).
The average difference for Saturn is only 0.55 m, therefore the related data file has not been updated.
The following table shows the differences between the old NAIF file and the new NAIF file (50000 random samples were collected). Table format: body included in this update, average difference and maximum difference for the position [m], average difference and maximum difference for the velocity [m/s]:
Mimas: 194911, 521017, 15.006, 39.762
Enceladus: 14537, 31515, 0.772, 1.679
Tethys: 16974, 43192, 0.652, 1.643
Dione: 10841, 23670, 0.288, 0.627
Rhea: 1574, 4925, 0.025, 0.079
Titan: 906, 4275, 0.004, 0.019
Hyperion: 27020, 125091, 0.084, 0.340
Iapetus: 41519, 91298, 0.038, 0.085
Phoebe: 1760, 4162, 0.000, 0.001
The errors between the original NAIF file and the updated CeBoMo data files (as reported in the table “Accuracy” of the manual) don’t change for this update.
Installation: unzip the archive to the Orbiter root folder maintaining the folder structure; the old data files will be overwritten.
Version history
v2.0.1 - 2015-07-29: updated the data file for Saturn’s moons.
v2.0.0 - 2015-07-02: only 1 DLL is needed to handle all the bodies; extended the coverage window to the year 1965 for the Sun, Earth, Moon, Jupiter, Saturn and Venus; included an installer; loading of the user selected atmospheric model; improved the efficiency of the code and the calculation speed; improved the smoothness of the ephemerides; added new bodies: Eris, Haumea, Makemake, Sedna, Naiad, Thalassa and Himalia; improved the accuracy for the Neptune system and extended the coverage window; added the 2-body motion for the calculations outside the ephemerides coverage window; updated some data for the configuration files; “1 Ceres” renamed to “Ceres”; the errors are logged in “Orbiter.log”.
v1.0.0 - 2015-05-04: first release.
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