(r3) Spectrum < IVOA

IVOA Web>IvoaDataModel>Spectrum (revision 3) (raw view)~~EditAttach~~

---+ Spectrum Data Model: version 1.2

%TOC{depth="3"}%

---++ Goals

This update is to satisfy requested enhancements to the v1.1 model document.

Presentations by Vandana Desai
   * Nov. 2020 Interop:  [[%PUBURL%/IVOA/InterOpNov2020DAL/Desai_IVOA_Presentation_18_Nov_2020.pdf][Implementation of the IVOA Spectral Data Model at IPAC&rdquo; assessment of V1.1 Recommendation]]
   * May 2021 Interop:  [[%PUBURL%/IVOA/InterOpMay2021DAL/Desai_IVOA_SpectralModel_2021.pdf]["IVOA Spectral Models and Access in the Era of Big Data&rdquo;]] enhancement request to support IPAC use cases

---++ Participants

data modeler: MarkCresitelloDittmar

editor(s): MarkCresitelloDittmar

implementer(s):

   * Firefly: ???
      * Spectral plotter
   * CASSIS: ???
      * Spectral analyser
   * GAVO: ???
      * data provider

---++ Use Cases

The requests stem from visualization use cases:

<div title="Page 10">

   * 1-D spectra from Spitzer&rsquo;s Infrared Spectrograph have multiple spectral orders
      * Spectral orders can overlap in wavelength
      * Plotting a Spitzer spectrum without accounting for orders gives you a mess
   * SEDs often include limits on measurements
      * these can be upper or lower limits
      * Plotters need to indicate limits clearly to avoid scientific misunderstanding
      * SDM1.1 has an ad-hoc representation for upper limits (only) which may be usable, but is conceptually incorrect.

</div>

---++ Discussion Threads

Preliminary meetings:

   * [[%PUBURL%/IVOA/InterOpMay2021DAL/IVOA_May21_DALDM_etherpad.txt][Interop DAL/DM Session - May 27, 2021]]
   * [[%PUBURL%/IVOA/IvoaDAL_RunningMeetings/IVOA_DAL_RM11_etherpad.txt][DAL/DM Running meeting - June 30, 2021]]
   * [[http://mail.ivoa.net/pipermail/dm/2021-October/006205.html][IVOA - Spectrum Data Model change request - Oct. 15, 2021]]

Planning meetings:

   * DM Meeting 20220622: [[DMRunning062022][Notes]]

---++ Data Model Updates

The document is being updated in the IVOA Git repository

   * [[https://github.com/ivoa-std/SpectrumDM][SpectrumDM]]: branch [[https://github.com/ivoa-std/SpectrumDM/tree/wd-v1.2][wd-v1.2]]

---++ Implementations

TBD

<!--
      * Set ALLOWTOPICRENAME = IVOA.TWikiAdminGroup
-->

Topic revision: r3 - 2022-07-20 - MarkCresitelloDittmar

IVOA

Log in or Register

IVOA.net
Wiki Home
WebChanges
WebTopicList
WebStatistics

Twiki Meta & Help
IVOA
Know
Main
Sandbox
TWiki

TWiki intro
TWiki tutorial
User registration
Notify me

Working Groups

Interest Groups

Committees

Stds&Procs

www.ivoa.net
Documents
Events
Members
XML Schema