HATS/LSDB Working Group Demo meeting, January 16, 2026

[Neven Caplar]

Dear all,

After the winter break and AAS meeting, we are very much looking forward to seeing you in two days, on Friday, January 16, at 10 am PT / 1 pm ET / 3pm BRT / 7 pm CET, for our monthly HATS/LSDB working group meeting (every 3rd Friday of the month).

Currently on the agenda:
• How to estimate the size of catalogs for user in LSDB
• Implementation of explicit skymaps
• HATS-import with specified memory constraints
• DESI + HATS catalogs, from DESI project, about benchmarking
• DESI + HATS catalogs, from NOIRLab, about AI investigation

Please let us know if you wish to discuss any other topics.

Slides: [2026/01/16] HATS/LSDB working group
https://docs.google.com/presentation/d/1kCbKoSTUd86r_LH48QnMtjleSN6CCKdELRtmgLlIA5s

Meeting notes:
docs.google.com/document/d/1l86MuzfYROWfRg_tg4R7o38WvHXUurHUEknUFWeCI78 <https://docs.google.com/document/d/1l86MuzfYROWfRg_tg4R7o38WvHXUurHUEknUFWeCI78>

Connection Info:
https://cmu.zoom.us/j/92939204460?pwd=aGdXTFQ5d1pTVmI1a0t3d0UwTzRhQT09

Regards,
Melissa and Neven

P.S. We did a small cleaning of e-mail addresses of people who get this mail directly to remove duplicates between e-mail addresses in hats-wg google group and on our direct mailing list. Let me know if you would like to get re-added (or removed) from our direct mailing list. You can always join hats-wg group at hat...@googlegroups.com.


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Neven Caplar
LINCC Frameworks
www.ncaplar.com

[Neven Caplar]

Dear all,

We are very much looking forward to seeing you in three days, on Friday, February 20th, at 10 am PT / 1 pm ET / 3pm BRT / 6pm UK / 7pm CET, for our monthly HATS/LSDB working group meeting (every 3rd Friday of the month).

Currently on the agenda:
• Test imports of the prompt processing database by Rubin Observatory
• Streaming of datasets to enable ML/AI workflows
• MultiModal Universe - HATS effort, by Mike Smith (CfA)

Please let us know if you wish to discuss any other topics.

Slides: [2026/02/20] HATS/LSDB working group
https://docs.google.com/presentation/d/1T0WpbRM4CTFFcf1m0vZnRSRB2yw6VujzKdmy9GAHHv0/

Meeting notes:

https://docs.google.com/document/d/1l86MuzfYROWfRg_tg4R7o38WvHXUurHUEknUFWeCI78

Connection Info:
https://cmu.zoom.us/j/92939204460?pwd=aGdXTFQ5d1pTVmI1a0t3d0UwTzRhQT09

Best,
Melissa and Neven

[Neven Caplar]

Dear all,

We decided to cancel our March HATS/LSDB working group meeting (which would normally happen on Friday, March 20th). We have been busy planning, evaluating internal plumbing, and implementing performance upgrades; and we are looking forward to updating everyone during our next meeting on April 17th.

We will still have our normal weekly drop-in meeting at the same time (at https://cmu.zoom.us/j/92939204460?pwd=aGdXTFQ5d1pTVmI1a0t3d0UwTzRhQT09), where you can come for help, ask questions, or suggest improvements.

Best,

[Neven Caplar]

Dear all,

We are very much looking forward to seeing you in two days, on Friday, April 17th, at 10 am PT / 1 pm ET / 2pm BRT / 6pm UK / 7pm CET, for our monthly HATS/LSDB working group meeting (every 3rd Friday of the month).

Currently on the agenda:
Short updates from LINCC F. about HATS-Europe meetings, preparation of Rubin products and collaboration with MultiModal Universe
Short updates from the Space Telescope about uploads to Open Space Buckets
Updates from SCIMMA, about bulk crossmatching of alerts
Updates from LIneA, about in-house developments
Updates from NOIRLab, about their initial exploration of LSDB
Insights on performance and scaling (by LINCC F.)

Please let us know if you wish to discuss any other topics.

Slides: [2026/04/17] HATS/LSDB working group
https://docs.google.com/presentation/d/1GZQJCRDj69qAdfZUMUvQCbUWkW7Gxb6fqv92WjPOha4/

Connection Info:
https://cmu.zoom.us/j/92939204460?pwd=aGdXTFQ5d1pTVmI1a0t3d0UwTzRhQT09

Meeting notes:
https://docs.google.com/document/d/1l86MuzfYROWfRg_tg4R7o38WvHXUurHUEknUFWeCI78

Kind Regards,
Melissa and Neven