Notes from Group 2
Participants:
- Ute Amerstorfer
- Freek Verstringe
- Steve Joy
- Veronique Delouille
- Pierre Le Sidaner
- Carlos Henrique Brandt
- Chloé Azria
Samples:
- IWF service sample data set on zenodo: https://zenodo.org/record/5749352
Questions:
- About coordinate systems usable in EPN-TAP
Not a close list yet, but this has to honor existing conventions. A list is available here: Planetary Coordinate Systems
- Could you specify how we have to modify the etc/gavo.rc?
4 Comments
Ute Amerstorfer
I have a question about our coordinate system and how to use that. We have spacecraft positions in Mercury-Solar-Orbital (MSO) coordinates. I guess this means,
spatial_frame_type = cartesian
But where to specify that it is MSO?
Stéphane Erard
spatial_frame_type = "cartesian" is OK
"MSO" should go in spatial_coordinate_description
- however please use a name/acronym following conventions (IAU approved when it exists), as here: Planetary Coordinate Systems
(which uses "Hermian" for Mercury). If your frame is not included here and is of standard usage, we are interested in a bib reference to complete this list.
Ute Amerstorfer
David and I discussed how we should proceed with the coordinate system issue. We would like to have MSO, as a matter of fact. MSO is quite well known throughout the community, and it is probably a source of errors when we have to convert to HSM. Is it possible to include MSO in VESPA?
Stéphane Erard
Yes, of course (remember I know nothing about this field!). Just put it in spatial_coordinate_description
Please give us an adequate bib reference we can include in the doc.