Ingest YJHK MKO photometry from Ultracool Sheet

[kelle]

Part of #452

There is a bunch YJHKLM MKO photometry in columns BV:CN.

Question for @kilohoku - When we ingest photometry, we try to include both telescope and instrument, not just filter. Ideally, we find the appropriate filter using the SVO service.

Is there any rhyme/reason to the MKO photometry? For example, are all the ULAS sources from a particular telescope? or something like that? Or is there one telescope/instrument which dominates and for simplicity, we just adopt that for all of them?

[kilohoku]

These MKO columns come from a hodgepodge of sources, unfortunately.

For YJHK, the dominant instrument is UKIRT/WFCAM, which was used by the UKIDSS and UHS surveys. I think it makes sense to just adopt this. For L and M, I don't think there is a dominant instrument.

Going by designations, anything starting with U (ULAS, etc.) is from UKIRT/WFCAM. Anything starting with V is from the VISTA telescope, which I think has only one instrument.

But there are many objects without a designation_mko. You could track all of these down using the references, but that's a lot of low-yield work. Anything with a "Bestxx" reference is from UKIRT/WFCAM.

On Mon, Jul 1, 2024 at 1:33 PM Kelle Cruz @.***> wrote:

Part of #452 https://github.com/SIMPLE-AstroDB/SIMPLE-db/issues/452

There is a bunch YJHKLM MKO photometry in columns BV:CN.

Question for @kilohoku https://github.com/kilohoku - When we ingest photometry, we try to include both telescope and instrument, not just filter. Ideally, we find the appropriate filter using the SVO service http://svo2.cab.inta-csic.es/theory/fps/index.php.

Is there any rhyme/reason to the MKO photometry? For example, are all the ULAS sources from a particular telescope? or something like that? Or is there one telescope/instrument which dominates and for simplicity, we just adopt that for all of them?

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-- Will Best Research Associate and Lecturer The University of Texas at Austin Department of Astronomy 2515 Speedway, Stop C1400 Austin, Texas 78712-1205

[kelle]

awesome, super helpful. We already have UKIRT/WFCAM.Y-K and Paranal/VISTA.Y-K setup.

[kelle]

We'll use this issue to focus on YJHK and handle LM separately.

[kelle]

If we're not sure which telescope it's from, we're gonna default to WFCAM and add a comment that says: "WFCAM.Y filter is a guess. Check reference for actual filter used."

[kelle]

@kilohoku Is the Y and H MKO photometry that's referenced to both Schn23b and UCS_24 synthetic? I can see the J and K photometry in Schn23b but no Y and H.

[kilohoku]

Yes, the Y and H and synthetic.

On Fri, Jul 12, 2024 at 5:51 PM Kelle Cruz @.***> wrote:

@kilohoku https://github.com/kilohoku Is the Y and H MKO photometry that's referenced to both Schn23b https://vizier.cds.unistra.fr/viz-bin/VizieR-3?-source=J/AJ/166/103/table13&-out.add=. and UCS_24 synthetic? I can see the J and K photometry in Schn23b but no Y and H.

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-- Will Best Research Associate and Lecturer The University of Texas at Austin Department of Astronomy 2515 Speedway, Stop C1400 Austin, Texas 78712-1205