(r2) MOC20RFC < IVOA

IVOA Web>IvoaApplications>MOC20RFC (revision 2) (raw view)~~EditAttach~~
---++ MOC 2.0 Proposed Recommendation: Request for Comments
%TOC{depth="3" title="Contents"}%
---+++ Summary

MOC 2.0 describes the Multi-Order Coverage map method (MOC) to specify arbitrary coverages for sky regions and/or time coverages and potentially other dimensions. The goal is to be able to provide a very fast comparison mechanism between coverages. The mechanism is based on a discretization of space and time dimensions. The system is based on the definition of a specific storage of the map coverage using predefined cells hierarchically grouped which makes it easy to produce and use for exploring astronomical collections.

Latest version of MOC 2.0 can be found at:
   * TBD URL link to the document
---+++ Changes since 1.1

MOC 1.1 dealt only with spatial coverage. MOC 2.0 supports specifying either spatial coverage, temporal coverage, or both coverages combined.

---+++ Reference Interoperable Implementations
   * MOCJava API (WD 2.0 compliant): [[https://wiki.ivoa.net/internal/IVOA/MocInfo/JavaMoc2.jar][JavaMoc2.jar]], [[https://wiki.ivoa.net/internal/IVOA/MocInfo/JavaMoc2Src.jar][source]] (v6.2 - July 2021)
   * Aladin Desktop: [[http://aladin.u-strasbg.fr/java/AladinBeta.jar][Aladin Desktop beta]]
   * STMOC Fits example: [[https://wiki.ivoa.net/internal/IVOA/MocInfo/STMOC.fits][STMOC.fits]] (XMM STMOC - 10000 Obscore first observations)
   * [[http://alasky.cds.unistra.fr/MocServer/query][Moc server]] [CDS]<em> (23832 SMoc + 1212 TMoc + 1045 STMoc)</em>
   * <a target="_blank" href="https://github.com/cds-astro/mocpy" title="MOCpy on github">MOCpy, available on github</a>, supports MOC 2.0 with the exception of the 't' and 's' prefixes in the JSON serialization.

---+++ Implementations Validators
   * MOC validator : [[https://wiki.ivoa.net/internal/IVOA/MocInfo/MocLint.jar][MocLint.jar]] _(ex: <span class="WYSIWYG_TT">java -jar MocLint.jar STMOC.fit</span>s)_

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---++ Comments from the IVOA Community during RFC/TCG review period: 2021-11-01 - 2021-12-17 

The comments from the TCG members during the RFC/TCG review should be included in the next section.

In order to add a comment to the document, please edit this page and add your comment to the list below in the format used for the example (include your Wiki Name so that authors can contact you for further information). When the author(s) of the document have considered the comment, they will provide a response after the comment.

Additional discussion about any of the comments or responses can be conducted on the WG mailing list. However, please be sure to enter your initial comments here for full consideration in any future revisions of this document

   * Sample comment by TWiki.WikiName 
      * Response (by TWiki.WikiName)

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---

---++ Comments from TCG member during the RFC/TCG Review Period: 2021-11-01 - 2021-12-17

WG chairs or vice chairs must read the Document, provide comments if any (including on topics not directly linked to the Group matters) or indicate that they have no comment.

IG chairs or vice chairs are also encouraged to do the same, althought their inputs are not compulsory.

---+++ TCG Chair & Vice Chair

---+++ [[IvoaApplications][Applications Working Group]]

---+++ [[IvoaDAL][Data Access Layer Working Group]]

---+++ [[IvoaDataModel][Data Model Working Group]]

---+++ [[IvoaGridAndWebServices][Grid & Web Services Working Group]]

---+++ [[IvoaResReg][Registry Working Group]]

---+++ [[IvoaSemantics][Semantics Working Group]]

---+++ [[IvoaDCP][Data Curation & Preservation Interest Group]]

---+++ [[IvoaEducation][Education Interest Group]]

---+++ [[IvoaKDD][Knowledge Discovery Interest Group]]

---+++ [[IvoaOps][Operations Interest Group]]

---+++ [[IvoaRadio][Radio Astronomy Interest Group]]

---+++ [[IvoaSS][Solar System Interest Group]]

---+++ [[IvoaTheory][Theory Interest Group]]

---+++ [[IvoaVOEvent][Time Domain Interest Group]]

---+++ [[IvoaStdsDocsProc][Standards and Processes Committee]]

---

---++ TCG Vote : 2021-11-01 - 2021-12-31

If you have minor comments (typos) on the last version of the document please indicate it in the Comments column of the table and post them in the TCG comments section above with the date.

| Group | Yes | No | Abstain | Comments |
| TCG | | | | |
| Apps | | | | |
| DAL | | | | |
| DM | | | | |
| GWS | | | | |
| Registry | | | | |
| Semantics | | | | |
| DCP | | | | |
| Edu | | | | |
| KDIG | | | | |
| Ops | | | | |
| Radio | | | | |
| SSIG | | | | |
| Theory | | | | |
| TD | | | | |
| <nop>StdProc | | | | |

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<br /> <!--</p> <ul> <li> <ul> <li> Set ALLOWTOPICRENAME =<span class="WYSIWYG_PROTECTED"> IVOA.TWikiAdminGroup</span> </li> </ul></li> </ul>-->
Topic revision: r2 - 2021-11-01 - TomDonaldson
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