Question regarding retrieving nongravitational acceleration parameters for Solar System objects

Support Data Products
#1

Hi all,

Hope this message finds you well! I wanted to reach out with a (potentially naive) question regarding how nongravitational accelerations are handled in the Rubin pipeline; specifically: are there any plans to add the A1, A2, and A3 Marsden parameters as catalog fields in future Rubin data releases? I suspect the answer to the previous question will affect the answer to this one – but I am also curious, what is the current process for calculating these parameters for newly-discovered objects? Will JPL Horizons provide these values, and if so, how quickly post-discovery?

Many thanks to anyone who might have any insight on this process, I so appreciate your time and consideration!

Cheers,
Ellie

1 Like
#2

Data releases will have an MPCORB table which contains orbit information fit by the MPC, including non-gravs whenever they choose to fit them. Rubin-fit orbits are not planned, since the MPC already does a great job of that.

#3

@Gerenjie thought data releases will have to also have Rubin-only data fit orbits as well in addition to the MPCORB

#4

@mschwamb Would definitely be nice to have. I don’t know of a promise to do so for DP2 or DR1.

#5

My understanding that this is expected for DR1 to help with population statistic analysis, but not for DP2 given the characteristics of that dataset and resource needs.

#6

Hi @Gerenjie and @mschwamb – thank you both so much for the information, this is really good to know. Will be keeping an eye on those MPCORB tables then, and on the Rubin-only orbits in DR1!