2021-11-04, 07:13 PM
Hi BMD,
I was able to input multiple sets of osculating elements into the ST4v MP DB by appending a letter to the MP's designation string as shown: [attachment=2104]
I did this for 6 element sets for 2019 XS using elements obtained from HORIZONS at 3 hr intervals. The CNEOS website has close approach occurring on Nov 9 @3:48. I forgot that the CNEOS times are UT so my times are off by -5 hrs, but it still seems to work. After the elements were added to the MP DB, I opened the IA using 2019 XS as the target object. The IA displayed the position of the MP using the elements obtained from MPC for Nov 3 as well as the 6 extra elements sets as shown: [attachment=2106]
Here's a close up view: [attachment=2105]
The extra MP designations are searchable & you can time step the IA to see how the different elements change the predicted positions of the MP.
This seems to do exactly what I was asking Greg to add to ST4v, so if this works, problem solved.
Before anyone else tries to do this, let me do some more testing to make sure that I haven't corrupted the MP DB in some way.
Phil S.
I was able to input multiple sets of osculating elements into the ST4v MP DB by appending a letter to the MP's designation string as shown: [attachment=2104]
I did this for 6 element sets for 2019 XS using elements obtained from HORIZONS at 3 hr intervals. The CNEOS website has close approach occurring on Nov 9 @3:48. I forgot that the CNEOS times are UT so my times are off by -5 hrs, but it still seems to work. After the elements were added to the MP DB, I opened the IA using 2019 XS as the target object. The IA displayed the position of the MP using the elements obtained from MPC for Nov 3 as well as the 6 extra elements sets as shown: [attachment=2106]
Here's a close up view: [attachment=2105]
The extra MP designations are searchable & you can time step the IA to see how the different elements change the predicted positions of the MP.
This seems to do exactly what I was asking Greg to add to ST4v, so if this works, problem solved.
Before anyone else tries to do this, let me do some more testing to make sure that I haven't corrupted the MP DB in some way.
Phil S.