Newer
Older
<?xml version="1.0" encoding="UTF-8"?>
<!--
_____________________________________________________________________________
INAF - OATS National Institute for Astrophysics - Astronomical Observatory of
Trieste INAF - IA2 Italian Center for Astronomical Archives
_____________________________________________________________________________
Copyright (C) 2017 Istituto Nazionale di Astrofisica
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License Version 3 as published by the
Free Software Foundation.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51
Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
-->
<schema name="ivoa" version="1.1">
<table name="obscore">
<add>
<property>
<name>dataproduct_type</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Logical data product type (image etc.)</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>ObsDataset.dataProductType</utype>
<ucd>meta.id</ucd>
<principal>true</principal>
</property>
<property>
<name>dataproduct_subtype</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Data product specific type</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>ObsDataset.dataProductSubtype</utype>
<ucd>meta.id</ucd>
<principal>true</principal>
</property>
<property>
<name>calib_level</name>
<type>INTEGER</type>
<updatable>true</updatable>
<nullable>false</nullable>
<description>Calibration level {0, 1, 2, 3, 4}</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>ObsDataset.calibLevel</utype>
<ucd>meta.code;obs.calib</ucd>
<principal>true</principal>
</property>
<property>
<name>obs_collection</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<nullable>false</nullable>
<description>Name of the data collection</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>DataID.collection</utype>
<ucd>meta.id</ucd>
<principal>true</principal>
</property>
<property>
<name>obs_id</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<nullable>false</nullable>
Sonia Zorba
committed
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
<description>Internal ID given by the ObsTAP service</description>
<standard>true</standard>
<mandatory>true</mandatory>
<utype>DataID.observationID</utype>
<ucd>meta.id</ucd>
<principal>true</principal>
</property>
<property>
<name>obs_title</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Brief description of dataset in free format</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>DataID.title</utype>
<ucd>meta.title;obs</ucd>
<principal>true</principal>
</property>
<property>
<name>obs_creation_date</name>
<type>TIMESTAMP</type>
<updatable>true</updatable>
<description>Date when the dataset was created</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>DataID.date</utype>
<ucd>time;meta.dataset</ucd>
<principal>true</principal>
</property>
<property>
<name>obs_creator_name</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Name of the creator of the data</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>DataID.creator</utype>
<ucd>meta.id</ucd>
<principal>true</principal>
</property>
<property>
<name>obs_creator_did</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>IVOA dataset identifier given by the creator</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>DataID.creatorDID</utype>
<ucd>meta.id</ucd>
<principal>false</principal>
</property>
<property>
<name>obs_release_date</name>
<type>TIMESTAMP</type>
<updatable>true</updatable>
<description>Observation release date (ISO 8601)</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Curation.releaseDate</utype>
<ucd>time.release</ucd>
<principal>true</principal>
</property>
<property>
<name>publisher_id</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>IVOA-ID for the Publisher</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Curation.publisherID</utype>
<ucd>meta.ref.uri;meta.curation</ucd>
<principal>true</principal>
</property>
<property>
<name>bib_reference</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Service bibliographic reference</description>
Sonia Zorba
committed
<mandatory>false</mandatory>
<utype>Curation.reference</utype>
<ucd>meta.bib</ucd>
<principal>false</principal>
</property>
<property>
<name>data_rights</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Public/Secure/Proprietary</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Curation.rights</utype>
<ucd>meta.code</ucd>
<principal>false</principal>
</property>
<property>
<name>obs_publisher_did</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<nullable>false</nullable>
<description>Dataset identifier given by the publisher</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Curation.publisherDID</utype>
<ucd>meta.ref.uri;meta.curation</ucd>
<principal>true</principal>
</property>
<property>
<name>access_url</name>
<size>255</size>
<updatable>true</updatable>
<description>URL used to access (download) dataset</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Access.reference</utype>
<ucd>meta.ref.url</ucd>
<principal>true</principal>
</property>
<property>
<name>access_format</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
Sonia Zorba
committed
<description>Content format of the dataset</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Access.format</utype>
<ucd>meta.code.mime</ucd>
<principal>true</principal>
</property>
<property>
<name>access_estsize</name>
Sonia Zorba
committed
<type>BIGINT</type>
<updatable>true</updatable>
<description>Estimated size of dataset in kilo bytes</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Access.size</utype>
<unit>kbyte</unit>
<ucd>phys.size;meta.file</ucd>
<principal>true</principal>
</property>
<property>
<name>target_name</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Astronomical object observed, if any</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Target.name</utype>
<ucd>meta.id;src</ucd>
<principal>true</principal>
</property>
<property>
<name>target_class</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Class of the Target object as in SSA</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Target.class</utype>
<ucd>src.class</ucd>
<principal>true</principal>
</property>
<property>
<name>s_ra</name>
<type>DOUBLE</type>
<updatable>true</updatable>
Sonia Zorba
committed
<description>Central Spatial Position in ICRS Right ascension</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.Coverage.Location.Coord.Position2D.Value2.C1</utype>
<unit>deg</unit>
<ucd>pos.eq.ra</ucd>
<principal>true</principal>
</property>
<property>
<name>s_dec</name>
<type>DOUBLE</type>
<updatable>true</updatable>
Sonia Zorba
committed
<description>Central Spatial Position in ICRS Declination</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.Coverage.Location.Coord.Position2D.Value2.C2</utype>
<unit>deg</unit>
<ucd>pos.eq.dec</ucd>
<principal>true</principal>
</property>
<property>
<name>s_fov</name>
<type>DOUBLE</type>
<updatable>true</updatable>
Sonia Zorba
committed
<description>Estimated size of the covered region as the diameter of a containing circle</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.Coverage.Bounds.Extent.diameter</utype>
<unit>deg</unit>
<ucd>phys.angSize;instr.fov</ucd>
<principal>true</principal>
</property>
<property>
<name>s_region</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Sky region covered by the data product (expressed in ICRS frame)</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.Coverage.Support.Area</utype>
<ucd>pos.outline;obs.field</ucd>
<principal>true</principal>
</property>
<property>
<name>s_xel1</name>
Sonia Zorba
committed
<type>BIGINT</type>
Sonia Zorba
committed
<description>Number of elements along the first coordinate of the spatial axis</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.numBins1</utype>
<ucd>meta.number</ucd>
<principal>true</principal>
</property>
<property>
<name>s_xel2</name>
Sonia Zorba
committed
<type>BIGINT</type>
<updatable>true</updatable>
<description>Number of elements along the second coordinate of the spatial axis</description>
<standard>true</standard>
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.numBins2</utype>
<ucd>meta.number</ucd>
<principal>true</principal>
</property>
<property>
<name>s_ucd</name>
<type>VARCHAR</type>
<size>255</size>
Sonia Zorba
committed
<description>UCD for the nature of the spatial axis (pos or u,v data)</description>
Sonia Zorba
committed
<mandatory>false</mandatory>
<utype>Char.SpatialAxis.ucd</utype>
<ucd>meta.ucd</ucd>
<principal>true</principal>
</property>
<property>
<name>s_unit</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Unit used for spatial axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpatialAxis.unit</utype>
<ucd>meta.unit</ucd>
<principal>true</principal>
</property>
<property>
<name>s_resolution</name>
<type>DOUBLE</type>
<updatable>true</updatable>
Sonia Zorba
committed
<description>Spatial resolution of data as FWHM of PSF</description>
<standard>true</standard>
<mandatory>true</mandatory>
<utype>Char.SpatialAxis.Resolution.refval.value</utype>
<unit>arcsec</unit>
<ucd>pos.angResolution</ucd>
<principal>true</principal>
</property>
<property>
<name>s_resolution_min</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Resolution min value on spatial axis (FHWM of PSF)</description>
Sonia Zorba
committed
<mandatory>false</mandatory>
<utype>Char.SpatialAxis.Resolution.Bounds.Limits.LoLimit</utype>
Sonia Zorba
committed
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
<ucd>pos.angResolution;stat.min</ucd>
<principal>true</principal>
</property>
<property>
<name>s_resolution_max</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Resolution max value on spatial axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpatialAxis .Resolution.Bounds.Limits.HiLimit</utype>
<unit>arcsec</unit>
<ucd>pos.angResolution;stat.max</ucd>
<principal>true</principal>
</property>
<property>
<name>s_calib_status</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Type of calibration along the spatial axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpatialAxis.calibrationStatus</utype>
<ucd>meta.code.qual</ucd>
<principal>true</principal>
</property>
<property>
<name>s_stat_error</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Astrometric precision along the spatial axis</description>
<standard>true</standard>
<unit>arcsec</unit>
<mandatory>false</mandatory>
<utype>Char.SpatialAxis.Accuracy.StatError.Refval.value</utype>
<unit>arcsec</unit>
<ucd>stat.error;pos.eq</ucd>
<principal>false</principal>
</property>
<property>
<name>s_pixel_scale</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Sampling period in world coordinate units along the spatial axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpatialAxis.Sampling.RefVal.SamplingPeriod</utype>
<unit>arcsec</unit>
<ucd>phys.angSize;instr.pixel</ucd>
<principal>true</principal>
</property>
<property>
<name>t_min</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Start time in MJD</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.TimeAxis.Coverage.Bounds.Limits.StartTime</utype>
<ucd>time.start;obs.exposure</ucd>
<principal>true</principal>
</property>
<property>
<name>t_max</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Stop time in MJD</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.TimeAxis.Coverage.Bounds.Limits.StopTime</utype>
<ucd>time.end;obs.exposure</ucd>
<principal>true</principal>
</property>
<property>
<name>t_exptime</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Total exposure time</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.TimeAxis.Coverage.Support.Extent</utype>
<ucd>time.duration;obs.exposure</ucd>
<principal>true</principal>
</property>
<property>
<name>t_resolution</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Temporal resolution FWHM</description>
Sonia Zorba
committed
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
<mandatory>true</mandatory>
<utype>Char.TimeAxis.Resolution.Refval.valueResolution.Refval.value</utype>
<ucd>time.resolution</ucd>
<principal>true</principal>
</property>
<property>
<name>t_calib_status</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Type of time coordinate calibration</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.TimeAxis.calibrationStatus</utype>
<ucd>meta.code.qual</ucd>
<principal>false</principal>
</property>
<property>
<name>t_stat_error</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Time coord statistical error</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.TimeAxis.Accuracy.StatError.Refval.value</utype>
<unit>s</unit>
<ucd>stat.error;time</ucd>
<principal>false</principal>
</property>
<property>
<name>t_xel</name>
Sonia Zorba
committed
<type>BIGINT</type>
<updatable>true</updatable>
<description>Number of elements along the time axis</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.TimeAxis.numBins</utype>
<ucd>meta.number</ucd>
<principal>true</principal>
</property>
<property>
<name>t_refpos</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Time Axis Reference Position as defined in STC REC</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.TimeAxis.ReferencePosition</utype>
</property>
<property>
<name>em_min</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Start in spectral coordinates</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpectralAxis.Coverage.Bounds.Limits.LoLimit</utype>
<ucd>em.wl;stat.min</ucd>
<principal>true</principal>
</property>
<property>
<name>em_max</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Stop in spectral coordinates</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.SpectralAxis.Coverage.Bounds.Limits.HiLimit</utype>
<ucd>em.wl;stat.max</ucd>
<principal>true</principal>
</property>
<property>
<name>em_res_power</name>
<type>DOUBLE</type>
<updatable>true</updatable>
Sonia Zorba
committed
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
<description>Value of the resolving power along the spectral axis. (R)</description>
<standard>true</standard>
<mandatory>true</mandatory>
<utype>Char.SpectralAxis.Resolution.ResolPower.refVal</utype>
<ucd>spect.resolution</ucd>
<principal>true</principal>
</property>
<property>
<name>em_res_power_min</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Resolving power min value on spectral axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.Resolution.ResolPower.LoLimit</utype>
<ucd>spect.resolution;stat.min</ucd>
<principal>true</principal>
</property>
<property>
<name>em_res_power_max</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Resolving power max value on spectral axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.Resolution.ResolPower.HiLimit</utype>
<ucd>spect.resolution;stat.max</ucd>
<principal>true</principal>
</property>
<property>
<name>em_resolution</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Value of Resolution along the spectral axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.Resolution.Refval.value</utype>
<unit>m</unit>
<ucd>spect.resolution;stat.mean</ucd>
<principal>true</principal>
</property>
<property>
<name>em_stat_error</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Spectral coord statistical error</description>
Sonia Zorba
committed
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.Accuracy.StatError.Refval.value</utype>
<unit>m</unit>
<ucd>stat.error;em</ucd>
<principal>false</principal>
</property>
<property>
<name>em_xel</name>
Sonia Zorba
committed
<type>BIGINT</type>
<updatable>true</updatable>
<description>Number of elements along the spectral axis</description>
Sonia Zorba
committed
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
<mandatory>true</mandatory>
<utype>Char.SpectralAxis.numBins</utype>
<ucd>meta.number</ucd>
</property>
<property>
<name>em_ucd</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Nature of the spectral axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.ucd</utype>
<ucd>meta.ucd</ucd>
<principal>true</principal>
</property>
<property>
<name>em_unit</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Units along the spectral axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.unit</utype>
<ucd>meta.unit</ucd>
<principal>true</principal>
</property>
<property>
<name>em_calib_status</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Type of spectral coord calibration</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.SpectralAxis.calibrationStatus</utype>
<ucd>meta.code.qual</ucd>
<principal>false</principal>
</property>
<property>
<name>o_ucd</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
Sonia Zorba
committed
<description>UCD of the observable axis (e.g. phot.flux.density, phot.count, etc.)</description>
Sonia Zorba
committed
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
<mandatory>true</mandatory>
<utype>Char.ObservableAxis.ucd</utype>
<ucd>meta.ucd</ucd>
<principal>true</principal>
</property>
<property>
<name>o_unit</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Units used for the observable values</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.ObservableAxis.unit</utype>
<ucd>meta.unit</ucd>
<principal>true</principal>
</property>
<property>
<name>o_calib_status</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Type of calibration for the observable coordinate</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.ObservableAxis.calibrationStatus</utype>
<ucd>meta.code.qual</ucd>
<principal>true</principal>
</property>
<property>
<name>o_stat_error</name>
<type>DOUBLE</type>
<updatable>true</updatable>
<description>Statistical error on the Observable axis</description>
<standard>true</standard>
<mandatory>false</mandatory>
<utype>Char.ObservableAxis.Accuracy.StatError.Refval.value</utype>
<!-- units specified by o_unit -->
<ucd>stat.error;phot.flux</ucd>
<principal>false</principal>
</property>
<property>
<name>pol_states</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
Sonia Zorba
committed
<description>List of polarization states present in the data file or NULL if not applicable</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.PolarizationAxis.stateList</utype>
<ucd>meta.code;phys.polarization</ucd>
<principal>true</principal>
</property>
<property>
<name>pol_xel</name>
Sonia Zorba
committed
<type>BIGINT</type>
Sonia Zorba
committed
<description>Number of elements along the polarization axis</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Char.PolarizationAxis.numBins</utype>
<ucd>meta.number</ucd>
<principal>true</principal>
</property>
<property>
<name>facility_name</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Name of the facility used for this observation</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Provenance.ObsConfig.Facility.name</utype>
<ucd>meta.id;instr.tel</ucd>
<principal>true</principal>
</property>
<property>
<name>instrument_name</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
Sonia Zorba
committed
<description>The name of the instrument used for the observation</description>
Sonia Zorba
committed
<mandatory>true</mandatory>
<utype>Provenance.ObsConfig.Instrument.name</utype>
<ucd>meta.id;instr</ucd>
<principal>true</principal>
</property>
<property>
<name>proposal_id</name>
<type>VARCHAR</type>
<size>255</size>
<updatable>true</updatable>
<description>Identifier of proposal to which observation belongs</description>
<standard>false</standard>
<mandatory>true</mandatory>
<utype>Provenance.Proposal.identifier</utype>
<ucd>meta.id; obs.proposal</ucd>
<principal>false</principal>
</property>
</add>
</table>
</schema>