Problem I am having using SPICE to create .spk file |
Problem I am having using SPICE to create .spk file |
Aug 21 2021, 04:58 AM
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Junior Member Group: Members Posts: 91 Joined: 21-August 06 Member No.: 1063 |
This question is for someone with experience making .spk files in SPICE and using MKSPK
I am over simplifying the data values to help explain or get to the point quicker. I am working with real data from Pioneer 12 so the data I wouldnt think is the problem True Anomaly values on approach to Periapsis go from -30 deg then -25 deg on down to then 0 deg at the point of periapsis and then goes back up to +30 deg as it leaves periapsis. For the sake of discussion I use these numbers for True Anomaly. -30 deg etc. on approach to periapsis -25 -20 -15 -10 -5 -0 deg True Anomaly at periapsis 5 10 15 20 25 30 deg leaving orbit after periapsis Problem is when making the .spk and checking it in Cosmographia the approach trajectory looks normal but then stops right at 0 deg and then starts going backward practically overlapping the approach trajectory path. I dont know why. Any SPICE .spk creators experience this phenom? I am using ELEMENTS for the input data type. thanks |
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Lo-Fi Version | Time is now: 28th September 2024 - 04:41 PM |
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