Information on Service 'ROME/REA Timeseries Photometry Data Release 1'

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The ROME/REA (Robotic Observations of Microlensing Events/Reactive Event Assessment) Survey was a Key Project at Las Cumbres Observatory (hereafter LCO) which continuously monitored 20 selected fields (3.76 sq.deg.) in the Galactic Bulge throughout their seasonal visibility window over a three-year period, between March 2017 and March 2020. Observations were made in three optical passbands (SDSS g', r', i'), and LCO's multi-site telescope network enabled the survey to achieve a typical cadence of ~10hrs in i' and ~15hrs in g' and r'. In addition, intervals of higher cadence (<1hr) data were obtained during monitoring of key microlensing events within the fields. This catalog includes the full timeseries photometry for all ~8 million stars, down to a limiting magnitude of i~18mag.

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'

Service Documentation

As a short example for how to explore this data using VO protocols, try this:

Your desktop could then look somewhat like this:

/rome/q/sdl/static/rome-action.jpeg

Overview

You can access this service using:

Coverage

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:

Input Fields

The following fields are available to provide input to the service (with some renderers, some of these fields may be unavailable):

NameTable Head DescriptionUnitUCD
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

Default Output Fields

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.

NameTable Head DescriptionUnitUCD
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

VOTable Output Fields

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.

NameTable Head DescriptionUnitUCD 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

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