PEN: UDF catalogue 1.2

[Gregory MANTELET]

Dear Jos,

Yes, you're perfectly right. Sorry for this mistake. `ivo_epoch_prop` is 
not yet part of the UDF Catalogue. This is the subject of the frozen 
PullRequest #20 <https://github.com/ivoa-std/udf-catalogue/pull/20>. I 
should have been more careful when sending this email. Thank you for 
raising these points.

Cheers,
Grégory


On 04/09/2024 16:12, Jos De Bruijne wrote:
>
> Dear all,
>
> For the record, to avoid misunderstandings:
>
>   * PEN-1.2 does *not* contain `ivo_epoch_prop`(the ESA implementation
>     is not yet ready);
>   * PEN-1.1 did contain the `ivo_epoch_prop_pos`simplified version and
>     this UDF is accordingly part of the UDF Catalogue 1.1.
>
> Best wishes,
>
> Jos
>
> This e-mail might reach you during non-working hours. This is a 
> matter of my personal work-life balance and travel schedule only. I do 
> not expect to receive a reply outside of your usual working hours.
>
> *From: *dal <dal-bounces at ivoa.net> on behalf of Gregory MANTELET via 
> dal <dal at ivoa.net>
> *Date: *Wednesday, 4 September 2024 at 15:26
> *To: *dal at ivoa.net <dal at ivoa.net>
> *Subject: *PEN: UDF catalogue 1.2
>
> Dear DAL members,
>
> This is a quick announcement for a minor revision of the
> UDF Catalogue Proposed Endorsed Note - version 1.2. This PEN is
> now released and may become an Endorsed Note at the next TCG meeting.
>
> So, if this is of some interest for you, please have a review very 
> soon as it
> may be voted at the next TCG meeting. For questions and comments, 
> Markus and Jon
> will be glad to collect and answer to them.
>
> For reminder, this note aims to gather ADQL user defined functions 
> recommended
> by the IVOA. Such functions must be implemented by at least two 
> implementations
> in order to appear in this note. Those functions are prefixed by `ivo_`.
> ADQL/TAP service providers are strongly encouraged to follow the 
> definition of
> functions listed there for a given feature if already covered by a 
> function of
> this document. The goal is to prevent the dissemination of variations 
> of similar
> functions by defining a single function signature and behavior.
> Example of UDF already endorsed: `ivo_healpix_index(hpxOrder, long, lat)`.
>
> The previous version was EN-1.1 
> <https://www.ivoa.net/documents/udf-catalogue/20231117/index.html> and 
> was released on the 10th of October 2023.
>
> In this PEN-1.2 /(see the IVOA doc. version -
> https://ivoa.net/documents/udf-catalogue/20240807/ - which matches
> the version on GitHub <https://github.com/ivoa-std/udf-catalogue>)/, 
> Jon and Markus have added the following functions:
>
> - `ivo_epoch_prop` and `ivo_geom_transform` as astrometry function
> - `ivo_simbadpoint` as convenience function
> - `ivo_normal_random` as a statistics function
> - `ivo_to_jd` and `ivo_to_mjd` as a datetime functions
> - `ivo_hms_to_degrees` and `ivo_dms_to_degrees` as a celestial 
> conversion functions
>
> Cheers,
> Grégory and Joshua
>
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