Further access options are discussed below
For a list of all services and tables belonging to this service's resource, see Information on resource 'ROME/REA Timeseries Photometry Data Release 1'
As a short example for how to explore this data using VO protocols, try this:
Open TOPCAT and it's VO/TAP window. Select "GAVO DC TAP" from the server selection and hit "use service".
We would like to find "unusual" time series; perhaps ones with a large range. To get a feeling for what "unusual" might mean, just fetch a few metadata rows like with a TAP query like this:
SELECT TOP 7000 * FROM rome.time_series WHERE np_i>100 AND np_g>100
Do a plane plot of that data, and ask TOPCAT to plot mag_i_max-mag_i_min against mag_g_max-mag_g_min.
When you open a table view, you can inspect the metadata for the time series when clicking on a point in the plot.
Let's inspect the actual data: In TOPCAT's main window, do Views/Activation Actions. If you check "Plot Table", TOPCAT will download and plot the time series; it will only plot the first lightcurve, though. To get all bands, at this point you have to manually fetch accref from the table and use File -> Load Table. Sorry about this.
Using datalink, you can also view three-band previews with one click on a plot point. To configure this, check "Invoke Service" in the Activation Actions, then use "Invoke now". In the dialog that pops up then, select the row with #preview and check Auto-Invoke. You will then see a light rendition of the light curves in (up to) three colours.
Your desktop could then look somewhat like this:
You can access this service using:
Intervals of messenger energies reflected in this resource: 1.44168 3.44401 eV
Time covered by this resource's data: 2017.26 2019.7
This service is published as follows:
local means it is listed on our front page, ivo_managed means it has a record in the VO registry.
Other services provided on the underlying data include:
The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):
| Name | Table Head | Description | Unit | UCD |
|---|---|---|---|---|
| APERTURE | Aperture | Angular diameter of aperture | deg | phys.angSize;instr.fov |
| BAND | Band | Wavelength (range) of interest (or symbolic bandpass names) | m | N/A |
| COLLECTION | Collection | A short handle naming the collection this spectrum belongs to. | N/A | N/A |
| COMPRESS | Compress? | Return compressed results? | N/A | N/A |
| CREATORDID | C. DID | Dataset identifier assigned by the creator | N/A | meta.id |
| FLUXCALIB | Calib Flux | Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). | N/A | N/A |
| FORMAT | Type | MIME type of the file served | N/A | meta.code.mime |
| maxrec | Match limit | Maximum number of records returned. Pass 0 to retrieve service parameters. | N/A | N/A |
| MTIME | Pub. Date | Date last published. | N/A | N/A |
| POS | Pos | ICRS position of target object | deg | N/A |
| PUBDID | P. DID | Dataset identifier assigned by the publisher | N/A | meta.ref.ivoid |
| REDSHIFT | z | Redshift of target object | N/A | src.redshift |
| REQUEST | Request type | This is queryData for the default operation; some services support getData as well | N/A | N/A |
| responseformat | Output Format | File format requested for output. | N/A | meta.code.mime |
| RUNID | Run id | An identifier for a certain run. Opaque to the service | N/A | N/A |
| SIZE | Size | Size of the region of interest around POS | deg | N/A |
| SNR | SNR | Signal-to-noise ratio estimated for this dataset | N/A | stat.snr |
| SPATRES | Res. Spc | Spatial resolution of data | deg | pos.angResolution |
| SPECRP | Specrp | Lower limit to spectral resolution power (λ/Δλ) as a single number. | N/A | N/A |
| TARGETCLASS | Ob. cls | Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) | N/A | src.class |
| TARGETNAME | Object | Common name of object observed. | N/A | meta.id;src |
| TIME | Date Obs. | Midpoint of exposure (MJD) | N/A | time.epoch |
| TOP | #Best | Only return the TOP "best" records (on this service, this usually is equivalent to MAXREC, so no ranking is implied). | N/A | N/A |
| verb | Verbosity | Exhaustiveness of column selection. VERB=1 only returns the most important columns, VERB=2 selects the columns deemed useful to the average user, VERB=3 returns a table with all available columns. | N/A | N/A |
| WAVECALIB | Calib. Spect. | Type of wavelength calibration | N/A | meta.code.qual |
| WILDTARGET | Name Pattern | Shell pattern of target observed (case insensitive) | N/A | N/A |
| WILDTARGETCASE | Name Pattern | Shell pattern of target observed (case sensitive) | N/A | N/A |
The following fields are contained in the output by default. More fields may be available for selection; these would be given below in the VOTable output fields.
| Name | Table Head | Description | Unit | UCD |
|---|---|---|---|---|
| accref | Product key | Access key for the data | N/A | meta.ref.url;meta.dataset |
| accsize | File size | Size of the data in bytes | byte | N/A |
| dec | Dec | ICRS declination of this object | deg | meta.id;meta.main |
| field | Field | ROME field the object was observed in | N/A | meta.id;obs.field |
| gaia_source_id | DR3 source_id | Gaia DR3 source_id for this object | N/A | meta.id.cross |
| hjd_max | max(T) | Latest observation represented in the time series | d | time.epoch;stat.max |
| hjd_min | min(T) | Earliest observation represented in the time series | d | time.epoch;stat.min |
| location_dec | Dec | N/A | deg | pos.eq.dec;meta.main |
| location_ra | RA | N/A | deg | pos.eq.ra;meta.main |
| mag_g_max | max(mag_g) | Maximal (faintest) magnitude measured the SDSS g' band. | mag | phot.mag;em.opt.v;stat.max |
| mag_g_mean | <mag_g> | Mean magnitude of the SDSS g' lightcurve. | mag | phot.mag;em.opt.v;stat.mean |
| mag_g_min | min(mag_g) | Minimal (brightest) magnitude measured in the SDSS g' band. | mag | phot.mag;em.opt.v;stat.min |
| mag_i_max | max(mag_i) | Maximal (faintest) magnitude measured the SDSS i' band. | mag | phot.mag;em.opt.i;stat.max |
| mag_i_mean | <mag_i> | Mean magnitude of the SDSS i' lightcurve. | mag | phot.mag;em.opt.i;stat.mean |
| mag_i_min | min(mag_i) | Minimal (brightest) magnitude measured in the SDSS i' band. | mag | phot.mag;em.opt.i;stat.min |
| mag_r_max | max(mag_r) | Maximal (faintest) magnitude measured the SDSS r' band. | mag | phot.mag;em.opt.r;stat.max |
| mag_r_mean | <mag_r> | Mean magnitude of the SDSS r' lightcurve. | mag | phot.mag;em.opt.r;stat.mean |
| mag_r_min | min(mag_r) | Minimal (brightest) magnitude measured in the SDSS r' band. | mag | phot.mag;em.opt.r;stat.min |
| mime | Type | MIME type of the file served | N/A | meta.code.mime |
| np_g | N(g) | Number of measurements in the SDSS g' lightcurve. | N/A | meta.number;obs |
| np_i | N(i) | Number of measurements in the SDSS i' lightcurve. | N/A | meta.number;obs |
| np_r | N(r) | Number of measurements in the SDSS r' lightcurve. | N/A | meta.number;obs |
| preview | Preview | URL of a preview for the dataset | N/A | meta.ref.url;meta.preview |
| quadrant | Quadrant | Quadrant of this object (for purely technical reasons, ROME has split each field into four quadrants). | N/A | meta.id;obs.field |
| quadrant_id | Id(Q) | Identifier for this object within its quadrant | N/A | meta.id |
| ra | RA | ICRS right ascension of this object | deg | meta.id;meta.main |
| rome_id | Id | Local unique identifier for this object within ROME/REA: field*10'000'000+quadrant*1'000'000'+quadrant_id | N/A | meta.id;meta.main |
| ssa_aperture | Aperture | Angular diameter of aperture | deg | phys.angSize;instr.fov |
| ssa_bandpass | Bandpass | Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger. | N/A | instr.bandpass |
| ssa_binSize | Spect. Bin | Bin size in wavelength | m | em.wl;spect.binSize |
| ssa_cdate | Proc. Date | Processing/Creation date | N/A | time;meta.dataset |
| ssa_collection | Collection | A short handle naming the collection this spectrum belongs to. | N/A | N/A |
| ssa_creationtype | Using | Process used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction) | N/A | N/A |
| ssa_creator | Creator | Creator of the datasets included here. | N/A | N/A |
| ssa_creatorDID | C. DID | Dataset identifier assigned by the creator | N/A | meta.id |
| ssa_csysName | Sys | System RA and Dec are given in | N/A | N/A |
| ssa_cversion | C. Version | Creator assigned version for this dataset (will be incremented when this particular item is changed). | N/A | meta.version;meta.dataset |
| ssa_datasource | Src | Method of generation for the data (one of survey, pointed, theory, custom, artificial). | N/A | N/A |
| ssa_dateObs | Mean Date | Mean MJD of observations | d | time.epoch |
| ssa_dstitle | Title | A compact and descriptive designation of the dataset. | N/A | meta.title;meta.dataset |
| ssa_dstype | Data type | Type of data (spectrum, time series, etc) | N/A | N/A |
| ssa_fluxcalib | Calib Flux | Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). | N/A | N/A |
| ssa_fluxSI | [Flux] | Flux/magnitude conversion factor in Osuna-Salgado convention | N/A | N/A |
| ssa_fluxStatError | Err. flux | Statistical error in flux | N/A | stat.error;phot.flux.density;em |
| ssa_fluxSysError | Sys. Err flux | Systematic error in flux | N/A | stat.error.sys;phot.flux.density;em |
| ssa_fluxucd | UCD(flux) | UCD of the flux column | N/A | meta.ucd |
| ssa_fluxunit | unit(flux) | Unit of the flux column | N/A | meta.unit |
| ssa_instrument | Instrument | Instrument or code used to produce these datasets | N/A | meta.id;instr |
| ssa_length | Length | Number of points in the spectrum | N/A | N/A |
| ssa_location | Location | ICRS location of aperture center | deg | pos.eq |
| ssa_model | Model | Data model name and version | N/A | N/A |
| ssa_pdate | Pub. Date | Date last published. | N/A | N/A |
| ssa_pubDID | P. DID | Dataset identifier assigned by the publisher | N/A | meta.ref.ivoid |
| ssa_publisher | Publisher | Publisher of the datasets included here. | N/A | meta.curation |
| ssa_redshift | z | Redshift of target object | N/A | src.redshift |
| ssa_reference | Ref. | URL or bibcode of a publication describing this data. | N/A | meta.bib.bibcode |
| ssa_score | Score | A measure of how closely the record matches your query. Higher numbers mean better matches. | N/A | N/A |
| ssa_snr | SNR | Signal-to-noise ratio estimated for this dataset | N/A | stat.snr |
| ssa_spaceCalib | Calib. Spc | Type of calibration in spatial coordinates | N/A | meta.code.qual |
| ssa_spaceError | Err. Spc | Statistical error in position | deg | stat.error;pos.eq |
| ssa_spaceRes | Res. Spc | Spatial resolution of data | deg | pos.angResolution |
| ssa_speccalib | Calib. Spect. | Type of wavelength calibration | N/A | meta.code.qual |
| ssa_specend | Band end | Upper value of spectral coordinate | m | em.wl;stat.max |
| ssa_specext | Bandwidth | Width of the spectrum | m | instr.bandwidth |
| ssa_specmid | Mid. Band | Midpoint of region covered in this dataset | m | instr.bandpass |
| ssa_specres | Spec. Res. | Resolution (in meters of wavelength) on the spectral axis | m | spect.resolution;em.wl |
| ssa_specstart | Band start | Lower value of spectral coordinate | m | em.wl;stat.min |
| ssa_spectralSI | [Spectral] | Spectral conversion factor in Osuna-Salgado convention | N/A | N/A |
| ssa_spectralucd | UCD(spectral) | UCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths. | N/A | meta.ucd |
| ssa_spectralunit | unit(spectral) | Unit of the spectral column | N/A | meta.unit |
| ssa_spectStatError | Err. Spect | Statistical error in wavelength | m | stat.error;em |
| ssa_spectSysError | Sys. Err. Spect | Systematic error in wavelength | m | stat.error.sys;em |
| ssa_targclass | Ob. cls | Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) | N/A | src.class |
| ssa_targetpos | Obj. pos | Equatorial (ICRS) position of the target object. | N/A | pos.eq;src |
| ssa_targname | Object | Common name of object observed. | N/A | meta.id;src |
| ssa_timeExt | Exp. Time | Exposure duration | s | time.duration |
| ssa_timeSI | [Time] | Time conversion factor in Osuna-Salgado convention. | N/A | N/A |
| upstream_name | ROME/REA | Upstream has a field/field_id naming scheme skipping the quadrants. This column can be used to go from our data to upstream's. | N/A | meta.id |
The following fields are available in VOTable output. The verbosity level is a number intended to represent the relative importance of the field on a scale of 1 to 30. The services take a VERB argument. A field is included in the output if their verbosity level is less or equal VERB*10.
| Name | Table Head | Description | Unit | UCD | Verb. Level |
|---|---|---|---|---|---|
| accref | Product key | Access key for the data | N/A | meta.ref.url;meta.dataset | 1 |
| rome_id | Id | Local unique identifier for this object within ROME/REA: field*10'000'000+quadrant*1'000'000'+quadrant_id | N/A | meta.id;meta.main | 1 |
| ra | RA | ICRS right ascension of this object | deg | meta.id;meta.main | 1 |
| dec | Dec | ICRS declination of this object | deg | meta.id;meta.main | 1 |
| gaia_source_id | DR3 source_id | Gaia DR3 source_id for this object | N/A | meta.id.cross | 1 |
| ssa_location | Location | ICRS location of aperture center | deg | pos.eq | 5 |
| ssa_timeExt | Exp. Time | Exposure duration | s | time.duration | 5 |
| ssa_length | Length | Number of points in the spectrum | N/A | N/A | 5 |
| accsize | File size | Size of the data in bytes | byte | N/A | 11 |
| ssa_score | Score | A measure of how closely the record matches your query. Higher numbers mean better matches. | N/A | N/A | 15 |
| location_ra | RA | N/A | deg | pos.eq.ra;meta.main | 15 |
| location_dec | Dec | N/A | deg | pos.eq.dec;meta.main | 15 |
| ssa_dstitle | Title | A compact and descriptive designation of the dataset. | N/A | meta.title;meta.dataset | 15 |
| ssa_creatorDID | C. DID | Dataset identifier assigned by the creator | N/A | meta.id | 15 |
| ssa_pubDID | P. DID | Dataset identifier assigned by the publisher | N/A | meta.ref.ivoid | 15 |
| ssa_cdate | Proc. Date | Processing/Creation date | N/A | time;meta.dataset | 15 |
| ssa_pdate | Pub. Date | Date last published. | N/A | N/A | 15 |
| ssa_bandpass | Bandpass | Bandpass (i.e., rough spectral location) of this dataset; this should be the most appropriate term from the vocabulary http://www.ivoa.net/rdf/messenger. | N/A | instr.bandpass | 15 |
| ssa_cversion | C. Version | Creator assigned version for this dataset (will be incremented when this particular item is changed). | N/A | meta.version;meta.dataset | 15 |
| ssa_targname | Object | Common name of object observed. | N/A | meta.id;src | 15 |
| ssa_targclass | Ob. cls | Object class (star, QSO,...; use Simbad object classification http://simbad.u-strasbg.fr/simbad/sim-display?data=otypes if at all possible) | N/A | src.class | 15 |
| ssa_redshift | z | Redshift of target object | N/A | src.redshift | 15 |
| ssa_targetpos | Obj. pos | Equatorial (ICRS) position of the target object. | N/A | pos.eq;src | 15 |
| ssa_snr | SNR | Signal-to-noise ratio estimated for this dataset | N/A | stat.snr | 15 |
| ssa_aperture | Aperture | Angular diameter of aperture | deg | phys.angSize;instr.fov | 15 |
| ssa_dateObs | Mean Date | Mean MJD of observations | d | time.epoch | 15 |
| ssa_specmid | Mid. Band | Midpoint of region covered in this dataset | m | instr.bandpass | 15 |
| ssa_specext | Bandwidth | Width of the spectrum | m | instr.bandwidth | 15 |
| ssa_specstart | Band start | Lower value of spectral coordinate | m | em.wl;stat.min | 15 |
| ssa_specend | Band end | Upper value of spectral coordinate | m | em.wl;stat.max | 15 |
| ssa_csysName | Sys | System RA and Dec are given in | N/A | N/A | 15 |
| ssa_spectralucd | UCD(spectral) | UCD of the spectral column in the spectra served; when you have wavelengths, use em.wl for vacuum wavelengths, em.wl;obs.atmos for air wavelengths. | N/A | meta.ucd | 15 |
| ssa_spectralunit | unit(spectral) | Unit of the spectral column | N/A | meta.unit | 15 |
| ssa_fluxucd | UCD(flux) | UCD of the flux column | N/A | meta.ucd | 15 |
| ssa_fluxunit | unit(flux) | Unit of the flux column | N/A | meta.unit | 15 |
| ssa_publisher | Publisher | Publisher of the datasets included here. | N/A | meta.curation | 15 |
| ssa_creator | Creator | Creator of the datasets included here. | N/A | N/A | 15 |
| ssa_collection | Collection | A short handle naming the collection this spectrum belongs to. | N/A | N/A | 15 |
| ssa_instrument | Instrument | Instrument or code used to produce these datasets | N/A | meta.id;instr | 15 |
| ssa_datasource | Src | Method of generation for the data (one of survey, pointed, theory, custom, artificial). | N/A | N/A | 15 |
| ssa_creationtype | Using | Process used to produce the data (archival, cutout, filtered, mosaic, projection, spectralExtraction, or catalogExtraction) | N/A | N/A | 15 |
| ssa_reference | Ref. | URL or bibcode of a publication describing this data. | N/A | meta.bib.bibcode | 15 |
| ssa_fluxStatError | Err. flux | Statistical error in flux | N/A | stat.error;phot.flux.density;em | 15 |
| ssa_fluxSysError | Sys. Err flux | Systematic error in flux | N/A | stat.error.sys;phot.flux.density;em | 15 |
| ssa_fluxcalib | Calib Flux | Type of flux calibration (ABSOLUTE, CALIBRATED, RELATIVE, NORMALIZED, or UNCALIBRATED). | N/A | N/A | 15 |
| ssa_binSize | Spect. Bin | Bin size in wavelength | m | em.wl;spect.binSize | 15 |
| ssa_spectStatError | Err. Spect | Statistical error in wavelength | m | stat.error;em | 15 |
| ssa_spectSysError | Sys. Err. Spect | Systematic error in wavelength | m | stat.error.sys;em | 15 |
| ssa_speccalib | Calib. Spect. | Type of wavelength calibration | N/A | meta.code.qual | 15 |
| ssa_specres | Spec. Res. | Resolution (in meters of wavelength) on the spectral axis | m | spect.resolution;em.wl | 15 |
| ssa_spaceError | Err. Spc | Statistical error in position | deg | stat.error;pos.eq | 15 |
| ssa_spaceCalib | Calib. Spc | Type of calibration in spatial coordinates | N/A | meta.code.qual | 15 |
| ssa_spaceRes | Res. Spc | Spatial resolution of data | deg | pos.angResolution | 15 |
| upstream_name | ROME/REA | Upstream has a field/field_id naming scheme skipping the quadrants. This column can be used to go from our data to upstream's. | N/A | meta.id | 15 |
| hjd_min | min(T) | Earliest observation represented in the time series | d | time.epoch;stat.min | 15 |
| hjd_max | max(T) | Latest observation represented in the time series | d | time.epoch;stat.max | 15 |
| mag_i_min | min(mag_i) | Minimal (brightest) magnitude measured in the SDSS i' band. | mag | phot.mag;em.opt.i;stat.min | 15 |
| mag_i_max | max(mag_i) | Maximal (faintest) magnitude measured the SDSS i' band. | mag | phot.mag;em.opt.i;stat.max | 15 |
| mag_i_mean | <mag_i> | Mean magnitude of the SDSS i' lightcurve. | mag | phot.mag;em.opt.i;stat.mean | 15 |
| np_i | N(i) | Number of measurements in the SDSS i' lightcurve. | N/A | meta.number;obs | 15 |
| mag_g_min | min(mag_g) | Minimal (brightest) magnitude measured in the SDSS g' band. | mag | phot.mag;em.opt.v;stat.min | 15 |
| mag_g_max | max(mag_g) | Maximal (faintest) magnitude measured the SDSS g' band. | mag | phot.mag;em.opt.v;stat.max | 15 |
| mag_g_mean | <mag_g> | Mean magnitude of the SDSS g' lightcurve. | mag | phot.mag;em.opt.v;stat.mean | 15 |
| np_g | N(g) | Number of measurements in the SDSS g' lightcurve. | N/A | meta.number;obs | 15 |
| mag_r_min | min(mag_r) | Minimal (brightest) magnitude measured in the SDSS r' band. | mag | phot.mag;em.opt.r;stat.min | 15 |
| mag_r_max | max(mag_r) | Maximal (faintest) magnitude measured the SDSS r' band. | mag | phot.mag;em.opt.r;stat.max | 15 |
| mag_r_mean | <mag_r> | Mean magnitude of the SDSS r' lightcurve. | mag | phot.mag;em.opt.r;stat.mean | 15 |
| np_r | N(r) | Number of measurements in the SDSS r' lightcurve. | N/A | meta.number;obs | 15 |
| field | Field | ROME field the object was observed in | N/A | meta.id;obs.field | 15 |
| quadrant | Quadrant | Quadrant of this object (for purely technical reasons, ROME has split each field into four quadrants). | N/A | meta.id;obs.field | 15 |
| quadrant_id | Id(Q) | Identifier for this object within its quadrant | N/A | meta.id | 15 |
| preview | Preview | URL of a preview for the dataset | N/A | meta.ref.url;meta.preview | 15 |
| mime | Type | MIME type of the file served | N/A | meta.code.mime | 20 |
| ssa_model | Model | Data model name and version | N/A | N/A | 20 |
| ssa_timeSI | [Time] | Time conversion factor in Osuna-Salgado convention. | N/A | N/A | 20 |
| ssa_spectralSI | [Spectral] | Spectral conversion factor in Osuna-Salgado convention | N/A | N/A | 20 |
| ssa_fluxSI | [Flux] | Flux/magnitude conversion factor in Osuna-Salgado convention | N/A | N/A | 20 |
| ssa_dstype | Data type | Type of data (spectrum, time series, etc) | N/A | N/A | 20 |
| owner | Owner | Owner of the data | N/A | N/A | 25 |
| embargo | Embargo ends | Date the data will become/became public | yr | N/A | 25 |
| ssa_region | Coverage | Rough coverage based on location and aperture. | N/A | pos.outline;obs.field | 30 |
VOResource XML (that's something exclusively for VO nerds)