<?xml version='1.0'?><?xml-stylesheet href='/static/xsl/oai.xsl' type='text/xsl'?><ri:Resource created="2024-10-30T12:13:20Z" status="active" updated="2026-01-15T13:39:44Z" version="1.2" xmlns:g-colstat="http://dc.g-vo.org/ColStats-1" xmlns:ri="http://www.ivoa.net/xml/RegistryInterface/v1.0" xmlns:vr="http://www.ivoa.net/xml/VOResource/v1.0" xmlns:vs="http://www.ivoa.net/xml/VODataService/v1.1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://dc.g-vo.org/ColStats-1 http://vo.ari.uni-heidelberg.de/docs/schemata/Colstats.xsd http://www.ivoa.net/xml/RegistryInterface/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/RegistryInterface.xsd http://www.ivoa.net/xml/VOResource/v1.0 http://vo.ari.uni-heidelberg.de/docs/schemata/VOResource.xsd http://www.ivoa.net/xml/VODataService/v1.1 http://vo.ari.uni-heidelberg.de/docs/schemata/VODataService.xsd" xsi:type="vs:CatalogService"><title>Browser interface to Citizen GBOT images</title><shortName>citigbot web</shortName><identifier>ivo://org.gavo.dc/citigbot/q/browse</identifier><curation><publisher>The GAVO DC team</publisher><creator><name>Demleitner, M.</name></creator><creator><name>Altmann, M.</name></creator><date role="Updated">2026-01-15T13:39:53Z</date><contact><name>GAVO Data Centre Team</name><address>Mönchhofstrasse 12-14, D-69120 Heidelberg</address><email>gavo@ari.uni-heidelberg.de</email><telephone>+49 6221 54 1837</telephone></contact></curation><content><subject>space-probes</subject><description>
This archive collects and re-publishes third-party, mostly amateur,
images of the Gaia astrometry satellite to complemement the Ground Based
Optical Tracking (GBOT) effort.

Until Gaia passivation, there is a temporary upload facility
at https://dc.g-vo.org/citigbot/q/upload/form.</description><source>https://www.cosmos.esa.int/web/gaia/observe-gaia</source><referenceURL>http://dc.g-vo.org/citigbot/q/browse/info</referenceURL><type>Archive</type><contentLevel>Research</contentLevel></content><facility>Various</facility><instrument>Various</instrument><coverage><spatial>5/1046 1051 6773 6847 6881 6888 6/4178-4181 4183 4188 4190 4198-4199
4203 4288-4289 4291-4294 4352 16750 16833 16836-16837 27001-27004
27006-27007 27071 27088-27089 27091 27100 27114-27115 27381-27383
27385 27387 27435 27438-27439 27456-27457 27521 27523 27530-27533
27536 27538 27544 27556 27560 27562 27776</spatial><temporal>54702.33777 60738.98534</temporal><footprint ivo-id="ivo://ivoa.net/std/moc">http://dc.g-vo.org/citigbot/q/browse/coverage</footprint><waveband>Optical</waveband></coverage><tableset><schema><name>citigbot</name><title>Citizen Science for GBOT</title><description>
This archive collects and re-publishes third-party, mostly amateur,
images of the Gaia astrometry satellite to complemement the Ground Based
Optical Tracking (GBOT) effort.

Until Gaia passivation, there is a temporary upload facility
at https://dc.g-vo.org/citigbot/q/upload/form.</description><table><name>citigbot.main</name><description>
This archive collects and re-publishes third-party, mostly amateur,
images of the Gaia astrometry satellite to complemement the Ground Based
Optical Tracking (GBOT) effort.

Until Gaia passivation, there is a temporary upload facility
at https://dc.g-vo.org/citigbot/q/upload/form.</description><nrows>14</nrows><column><name>dataproduct_type</name><description>High level scientific classification of the data product, taken from an enumeration</description><ucd>meta.code.class</ucd><utype>obscore:obsdataset.dataproducttype</utype><stats><option freq="1.0">image</option></stats><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>dataproduct_subtype</name><description>Data product specific type</description><ucd>meta.code.class</ucd><utype>obscore:obsdataset.dataproductsubtype</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>calib_level</name><description>Amount of data processing that has been applied to the data</description><ucd>meta.code;obs.calib</ucd><utype>obscore:obsdataset.caliblevel</utype><stats><min>2</min><percentile03>2.0</percentile03><median>2.0</median><percentile97>2.0</percentile97><max>2</max><fillFactor>1.0</fillFactor><option>0</option><option>1</option><option>2</option><option>3</option></stats><dataType xsi:type="vs:VOTableType">short</dataType></column><column><name>obs_collection</name><description>Name of a data collection (e.g., project name) this data belongs to</description><ucd>meta.id</ucd><utype>obscore:dataid.collection</utype><stats><option freq="1.0">citizen GBOT</option></stats><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>obs_id</name><description>Unique identifier for an observation</description><ucd>meta.id</ucd><utype>obscore:DataID.observationID</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>obs_title</name><description>Free-from title of the data set</description><ucd>meta.title;obs</ucd><utype>obscore:dataid.title</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>obs_publisher_did</name><description>Dataset identifier assigned by the publisher.</description><ucd>meta.ref.ivoid</ucd><utype>obscore:curation.publisherdid</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>obs_creator_did</name><description>Dataset identifier assigned by the creator.</description><ucd>meta.id</ucd><utype>obscore:dataid.creatordid</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>access_url</name><description>The URL at which to obtain the data set.</description><ucd>meta.ref.url</ucd><utype>obscore:access.reference</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>access_format</name><description>MIME type of the resource at access_url</description><ucd>meta.code.mime</ucd><utype>obscore:access.format</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>access_estsize</name><description>Estimated size of data product</description><unit>kbyte</unit><ucd>phys.size;meta.file</ucd><utype>obscore:access.size</utype><stats><min>2967</min><percentile03>3011.07</percentile03><median>21328.5</median><percentile97>56624.92999999999</percentile97><max>60218</max><fillFactor>1.0</fillFactor></stats><dataType xsi:type="vs:VOTableType">long</dataType><flag>nullable</flag></column><column><name>target_name</name><description>Object a targeted observation targeted</description><ucd>meta.id;src</ucd><utype>obscore:Target.Name</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>target_class</name><description>Class of the target object (star, QSO, ...)</description><ucd>src.class</ucd><utype>obscore:target.class</utype><stats><option freq="1.0">space-probes</option></stats><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>s_ra</name><description>RA of (center of) observation, ICRS</description><unit>deg</unit><ucd>pos.eq.ra</ucd><utype>obscore:char.spatialaxis.coverage.location.coord.position2d.value2.c1</utype><stats><min>12.851</min><percentile03>60.8483</percentile03><median>149.352</median><percentile97>173.074</percentile97><max>173.175</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>s_dec</name><description>Dec of (center of) observation, ICRS</description><unit>deg</unit><ucd>pos.eq.dec</ucd><utype>obscore:char.spatialaxis.coverage.location.coord.position2d.value2.c2</utype><stats><min>-17.6189</min><percentile03>-9.18881</percentile03><median>7.92611</median><percentile97>10.771</percentile97><max>11.0595</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">double</dataType><flag>indexed</flag><flag>nullable</flag></column><column><name>s_fov</name><description>Approximate spatial extent for the region covered by the observation</description><unit>deg</unit><ucd>phys.angSize;instr.fov</ucd><utype>obscore:char.spatialaxis.coverage.bounds.extent.diameter</utype><stats><min>0.330351</min><percentile03>0.400125</percentile03><median>0.791154</median><percentile97>2.56926</percentile97><max>2.62561</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>s_region</name><description>Region covered by the observation, as a polygon</description><ucd>pos.outline;obs.field</ucd><utype>obscore:char.spatialaxis.coverage.support.area</utype><dataType arraysize="*" extendedType="adql:REGION" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>s_resolution</name><description>Best spatial resolution within the data set</description><unit>arcsec</unit><ucd>pos.angResolution</ucd><utype>obscore:Char.SpatialAxis.Resolution.refval.value</utype><stats><min>0.00144872</min><percentile03>0.0147845</percentile03><median>0.5309</median><percentile97>1.99424</percentile97><max>2.28012</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>t_min</name><description>Lower bound of times represented in the data set</description><unit>d</unit><ucd>time.start;obs.exposure</ucd><utype>obscore:char.timeaxis.coverage.bounds.limits.starttime</utype><stats><min>54702.3</min><percentile03>57041</percentile03><median>60711</median><percentile97>60738.9</percentile97><max>60739</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>t_max</name><description>Upper bound of times represented in the data set</description><unit>d</unit><ucd>time.end;obs.exposure</ucd><utype>obscore:char.timeaxis.coverage.bounds.limits.stoptime</utype><stats><min>54702.3</min><percentile03>57041</percentile03><median>60711</median><percentile97>60738.9</percentile97><max>60739</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">double</dataType><flag>nullable</flag></column><column><name>t_exptime</name><description>Total exposure time</description><unit>s</unit><ucd>time.duration;obs.exposure</ucd><utype>obscore:char.timeaxis.coverage.support.extent</utype><stats><min>45</min><percentile03>50.85</percentile03><median>90</median><percentile97>1112.4</percentile97><max>1440</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>t_resolution</name><description>Minimal significant time interval along the time axis</description><unit>s</unit><ucd>time.resolution</ucd><utype>obscore:char.timeaxis.resolution.refval.value</utype><stats><fillFactor>0</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>em_min</name><description>Minimal wavelength represented within the data set</description><unit>m</unit><ucd>em.wl;stat.min</ucd><utype>obscore:char.spectralaxis.coverage.bounds.limits.lolimit</utype><stats><fillFactor>0</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>em_max</name><description>Maximal wavelength represented within the data set</description><unit>m</unit><ucd>em.wl;stat.max</ucd><utype>obscore:char.spectralaxis.coverage.bounds.limits.hilimit</utype><stats><fillFactor>0</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>em_res_power</name><description>Spectral resolving power lambda/delta lambda</description><ucd>spect.resolution</ucd><utype>obscore:char.spectralaxis.resolution.resolpower.refval</utype><stats><fillFactor>0</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>o_ucd</name><description>UCD for the product's observable</description><ucd>meta.ucd</ucd><utype>obscore:char.observableaxis.ucd</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>pol_states</name><description>List of polarization states in the data set</description><ucd>meta.code;phys.polarization</ucd><utype>obscore:Char.PolarizationAxis.stateList</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>facility_name</name><description>Name of the facility at which data was taken</description><ucd>meta.id;instr.tel</ucd><utype>obscore:Provenance.ObsConfig.facility.name</utype><stats><option freq="1.0">NULL</option></stats><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>instrument_name</name><description>Name of the instrument that produced the data</description><ucd>meta.id;instr</ucd><utype>obscore:Provenance.ObsConfig.instrument.name</utype><stats><option freq="1.0">NULL</option></stats><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>s_xel1</name><description>Number of elements (typically pixels) along the first spatial axis.</description><ucd>meta.number</ucd><utype>obscore:Char.SpatialAxis.numBins1</utype><stats><min>1375</min><percentile03>1437.79</percentile03><median>2947.0</median><percentile97>6250.44</percentile97><max>6252</max><fillFactor>1.0</fillFactor></stats><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>s_xel2</name><description>Number of elements (typically pixels) along the second spatial axis.</description><ucd>meta.number</ucd><utype>obscore:Char.SpatialAxis.numBins2</utype><stats><min>1024</min><percentile03>1053.64</percentile03><median>2095.0</median><percentile97>4176.0</percentile97><max>4176</max><fillFactor>1.0</fillFactor></stats><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>t_xel</name><description>Number of elements (typically pixels) along the time axis.</description><ucd>meta.number</ucd><utype>obscore:Char.TimeAxis.numBins</utype><stats><min>1</min><percentile03>1.0</percentile03><median>1.0</median><percentile97>1.0</percentile97><max>1</max><fillFactor>1.0</fillFactor></stats><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>em_xel</name><description>Number of elements (typically pixels) along the spectral axis.</description><ucd>meta.number</ucd><utype>obscore:Char.SpectralAxis.numBins</utype><stats><min>1</min><percentile03>1.0</percentile03><median>1.0</median><percentile97>1.0</percentile97><max>1</max><fillFactor>1.0</fillFactor></stats><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>pol_xel</name><description>Number of elements (typically pixels) along the polarization axis.</description><ucd>meta.number</ucd><utype>obscore:Char.PolarizationAxis.numBins</utype><stats><fillFactor>0.0</fillFactor></stats><dataType xsi:type="vs:VOTableType">int</dataType><flag>nullable</flag></column><column><name>s_pixel_scale</name><description>Sampling period in world coordinate units along the spatial axis</description><unit>arcsec</unit><ucd>phys.angSize;instr.pixel</ucd><utype>obscore:Char.SpatialAxis.Sampling.RefVal.SamplingPeriod</utype><stats><min>0.00144872</min><percentile03>0.0147845</percentile03><median>0.5309</median><percentile97>1.99424</percentile97><max>2.28012</max><fillFactor>1</fillFactor></stats><dataType xsi:type="vs:VOTableType">float</dataType><flag>nullable</flag></column><column><name>em_ucd</name><description>Nature of the product's spectral axis (typically, em.freq, em.wl, or em.energy)</description><ucd>meta.ucd</ucd><utype>obscore:Char.SpectralAxis.ucd</utype><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>source_table</name><description>Name of a TAP-queriable table this data originates from. This source table usually provides more information on the the data than what is given in obscore. See the TAP_SCHEMA of the originating TAP server for details.</description><ucd>meta.id;meta.table</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>upload_date</name><description>Timestamp the dataset was uploaded to the GAVO data centre.</description><ucd>time.release</ucd><stats><min>60613.59777503287</min><percentile03>60648.87477806128</percentile03><median>60718.56711175729</median><percentile97>60739.3952126536</percentile97><max>60739.65005964433</max><fillFactor>1.0</fillFactor></stats><dataType arraysize="19" extendedType="timestamp" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column><column><name>nick</name><description>Observer nickname; this is some free string they put in during upload.</description><ucd>obs.observer</ucd><dataType arraysize="*" xsi:type="vs:VOTableType">char</dataType><flag>nullable</flag></column></table></schema></tableset></ri:Resource>