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-- Main.XavierHaubois - 02 May 2014 ---+ Data model table for main datasets: ---++ M = mandatory, O = optional, D = deduced from the oifits keywords or from the other metadata, N/A not applicable ObsCore minimal metadata: | *field* | *unit* | *datatype* | *L0* | *L1* | *L2* | *L3* | *inOifits* | *sample ([[http://cdsarc.u-strasbg.fr/vizier/ftp/cats/J/A+A/544/A91/fits/HA2009.11.05.12.51.fits][Oifits file]])* | *description* | *remarques* | |dataproduct_type| | text | D |D |D |D| | spectrum? visibility? |High level scientific classification of the data product, taken from an enumeration| Predefined enumeration: image, cube, spectrum, sed, timeseries, visibility, event | |dataproduct_subtype| | text | D |D |D |D| |opticalInterferometryData|Data product specific type| | |calib_level| | integer | 0 | 1 | 2 | 3 | |3|Amount of data processing that has been applied to the data| | |target_name| | text | M | M | MD | MD | X |HD31964|Object a targeted observation | | |obs_id| | text | M | M | M |M | | | a unique identifier for an archive dataset (runId/progId, e.g. 089.C-0605 ) or generated one for combined data | We should allow several obs_id.| |obs_collection| | text| N/A | N/A | N/A | O | |J/A+A/544/A91|Name of a data collection (e.g., project name) this data belongs to| | |obs_creator_name| | text | MD (Instrument PI) | M (data builder) | M (data builder) | M (dataPI/1st author of the paper) | | Mourard, D.| instrument or data PI | obscore says "institution or entity name which created the dataset". | |obs_release_date| | timestamp| MD | MD |MD |N/A| | | Date of public release | Mandatory for private data. Predefined rules depending on source can be applied | |obs_publisher_did| | TBD|MD | MD | MD | MD | | 007 |Instrument PI ID|TBD, deduced from the name. Should help o retrieve the source | |bib_reference| | text |N/A | N/A |N/A | M | |2012A&A...544A..91M|Bibcode| | |data_rights| | text | M | M | M | public | | public |TBD| private, proprietary, public. L0 metadata are public but data access may be restricted | |access_url| | text | N/A | M/D | M/D |M/D | |HA2009.11.05.12.51.fits|The URL at which to obtain the data set.| L0: page url of these L0 metadata| |access_format| | text | N/A | D | D | D | | application/fits |MIME type of the resource at access_url| | |access_estsize [kbyte]| | integer | N/A | D | D | D | | 34560 |Estimated size of data product| | |s_ra | | real | MD | MD | MD | MD | X | 0 | Right ascension of (center of) observation, ICRS | | |s_dec | | real | MD | MD | MD | MD | X | 0 | Declination of (center of) observation, ICRS | | |s_fov | [deg]| real |O| OD | OD | OD |X||Approximate spatial extent for the region covered by the observation| | |s_region| | spoly| O | OD | OD | OD |X ||Region covered by the observation, as a polygon| | |s_resolution | [arcsec]| real | O | OD | OD | OD |X| |Best spatial resolution within the data set| | |t_min |[d]| real | M | MD | MD | MD | X |55141.1|Lower bound of times represented in the data set, as MJD| | |t_max |[d]| real | M | MD | MD | MD | X |55141.5|Upper bound of times represented in the data set, as MJD| | |t_exptime |[s]|real| O | MD | OD | OD | X |0.05|Total exposure time (seconds)| | |t_resolution |[s]|real| O | OD | OD | OD | X |0.5|Minimal significant time interval along the time axis| | |em_min |[m]| real | MD | MD | MD | MD | X |6.54085e-07|Minimal wavelength represented within the data set| From wavelength table of OIFits files, from instrument mode otherwise | |em_max |[m]| real | MD | MD | MD | MD |X |6.585352e-07|Maximal wavelength represented within the data set| See em_min. | |em_res_power | | real | D | D | D | D | |400|Spectral resolving power delta lambda/lamda | page [[http://apps.jmmc.fr/~swmgr/AsproOIConfigurations/ASPRO2-CONF_2014_0403/][ASPRO2]] | |o_ucd | |text| | | | | ||UCD for the product's observable| NULL until an appropriate UCD is defined | |pol_states | | text |O | O | O | O | | NULL |List of polarization states in the data set| NULL (default) or combination of I Q U V RR LL RL LR XX YY XY YX POLI POLA | |facility_name | | text |MD | D | D | D | | !MtW.CHARA |Name of the facility at which data was taken| To be confirmed with the submission report, [[http://vo.ads.harvard.edu/dv/facilities.txt]]| |instrument_name | | text | M |MD | MD | MD | X |VEGA|Name of the instrument (detector) that produced the data | mainly deduced from OIWAVELENGTH.INSNAME. This column can be linked to the associated instrument page | Additional (OIDB) metadata included in TAP records: | *field* | *unit* | *datatype* | *L0* | *L1* | *L2* | *L3* | *inOifits* | *sample ([[http://cdsarc.u-strasbg.fr/vizier/ftp/cats/J/A+A/544/A91/fits/HA2009.11.05.12.51.fits][Oifits file]])* | *description* | *remarques* | |nb_channels | | integer | D | D | D | D | X |90|TBD| | |nb_vis | | integer | N/A |D | D | D | X |90|TBD| | |nb_vis2 | | integer |N/A | D | D | D | X |0|TBD| | |nb_t3 | | integer | N/A | D | D | D |X |0|TBD| | |subdate | |timestamp|D | D |D|D| |2014-02-18 23:38:41.0|submission date| generated automatically by !OiDB portal| |datapi | | text | O | O | O | O | | | principal contact point | this is mainly to improve lack of contact information not covered by obscore. This will refer to the PI of the proposal associated to the data. eg.: obs log generaly are provided by an institution or automatic archive such L2 PIONIER are generated by Jean-Baptiste LeBouquin| |quality_flag | | integer | O | M | M | M | | 2 | Information about t_0, r_0 for L0. For L1,L2,L3: manually filled | Integer from 1 (low) to 5 (high). TBC by Vega team | |telescope_configuration | | text | M | D | D | D |X | UT1-UT2 | Telescope configuration | is facility dependent but could be dereferenced to get common information (min/max baseline e.g.) | |instrument_mode | | text | M | M | M | M | |LR | value that could be dereferenced by oidb to get Dispersion mode, filters | add camera mode ? | |keywords | | text | O | O | O | OD | | stars: individual: epsilon Aurigae, binaries: eclipsing, stars: massive, stars: AGB and post-AGB, circumstellar matter | Astrophysical keywords | ADS / OLBIN keywords | |progid | | text | O | O | O | O | | | program or proposal ID | added by different manners | Additional (OIDB) metadata not included in TAP records (only in the XML database): |comments | | text | O | O | O | O | | | List of user comments | Added through web interface. Provided by TAP ? | (find more information about the observation core datamodel: http://www.ivoa.net/documents/ObsCore/ ) ---+ TODO * define dataModel to store instrument informations: * with instrument name, instrument_id, instrument_piId , instrument_piId, instrument_mainUrl... facility link ? * use proposal_id (TAP standard) instead of progid ---+ TODO for our specific columns ---++ define a prefix -- Main.GuillaumeMella - oidb ? ---++ shorten some column names * Telescope configuration * Instrument mode
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Topic revision: r13 - 2015-01-07
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GuillaumeMella
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