Kepler Certified False Positive Table Data Column Definitions

The following tables list all of the data columns in the Kepler Certified False Positive interactive table, as defined by the Kepler False Positive Working Group (FPWG).


Skip to a section:

Definitions

Database Column Name Table Label Description
kepid† KepID Kepler ID of the target star associated with this KOI
kepoi_name† KOI Name KOI name of this transit detection
koi_period† KOI Transit Period [days] Orbital period of this KOI used in the False Positive Working Group analysis
† Default column: these columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.

High-Level Dispositions
(set by logical analysis on the observational flag)

Database Column Name Table Label Description
fpwg_disp_status† High-Level Disposition Options: certified FP, certified FA, not examined, pending, possible planet
fpwg_disp_source† Target Is Source High-Level Flag Boolean flag indicating the transit signal is likely due to the target star
fpwg_disp_eb† Eclipsing Binary High-Level Flag Boolean flag indicating the transit signal is likely due to an eclipsing binary
fpwg_disp_offst† Offset High-Level Flag Boolean flag indicating the transit signal is likely offset from the target star
fpwg_disp_perep† Period Epoch Match Boolean flag indicating if this is a period-epoch match child
fpwg_disp_other† Other False Positive High-Level Flag Boolean flag indicating the transit signal is a false positive for reasons not covered above. Details given in comments.
† Default column: these columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.

Flux-Based Observational Flags
(set by manual inspection)

Database Column Name Table Label Description
fpwg_flux_ss Secondary Observed Flux-based Flag Boolean flag indicating the flux light curve shows a secondary eclipse/occultation event
fpwg_flux_slflum Secondary Self-Luminous Flux-based Flag Boolean flag indicating the secondary event indicates the transit signal is due to a self-luminous eclipsing object
fpwg_flux_oedp Significant Odd/Even Flux-based Flag Boolean flag indicating the transit signal shows alternating depths, indicating primary/secondary events with twice the inferred orbital period
fpwg_flux_vshape V-Shaped Flux-based Flag Boolean flag indicating the transit signal shows alternating depths, indicating primary/secondary events with twice the inferred orbital period
fpwg_flux_depth Depth Implies Stellar Size Flux-based Flag Boolean flag indicating the depth of the transit signal is not consistent with a planetary interpretation
fpwg_flux_dilutn Dilution Implies Stellar Size Flux-based Flag Boolean flag indicating the depth of the transit signal after accounting for dilution is not consistent with a > planetary interpretation
fpwg_flux_lcurve Light Curve Inconsistent With Planet Flux-based Flag Boolean flag indicating the flux light curve is generally inconsistent with a planet interpretation
fpwg_flux_ootvar Phase Variations Imply Stellar Flux-based Flag Boolean flag indicating the flux light curve shows phase variations inconsistent with a planetary interpretation
fpwg_flux_corvar Transit Correlated Flux Variations Flux-based Flag Boolean flag indicating the flux light curve shows flux variations correlated with the transit signal
fpwg_flux_other Other Flux-based Flag Boolean flag indicating the flux light curve is inconsistent with a planetary interpretation for reasons not captured in other flags. Details given in comments.
fpwg_flux_stellr Stellar Parameters Not Trustworthy Flux-based Flag Boolean flag indicating the stellar parameters used to infer transit properties are too uncertain to be used to reach conclusions
fpwg_flux_noteb Evidence For EB Not Compelling Flux-based Flag Boolean flag indicating this KOI is not a flux false positive regardless of the settings of other flux-based observational flags

Offset Observational Flags
(set by manual inspection)

Database Column Name Table Label Description
fpwg_offst_sig Significant Measured Offset Flag Boolean flag indicating the centroid measurements imply the transit source is offset from the target star by more than 3 times the uncertainty
fpwg_offst_badim Bad Difference Images Offset Flag Boolean flag indicating the difference images used to compute centroid offsets are not of sufficient quality to support the measurement
fpwg_offst_inval Centroid Offset Not Valid Offset Flag Boolean flag indicating the measured centroid offsets are not valid
fpwg_offst_vis Offset Visually Identified Offset Flag Boolean flag indicating that visual inspection determined the transit source is offset from the target star
fpwg_offst_star Star Detected At Transit Location Offset Flag Boolean flag indicating a star other than the target star is found at the transit source location
fpwg_offst_qvars Quarterly Depth Variations Offset Flag Boolean flag indicating the transit depth depends on quarter, possibly indicating the transit source is offset from the target star
fpwg_offst_other Other Offset Flag Boolean flag indicating the transit source is offset from the target star based on observations not captured in other flags. Details given in comments.
fpwg_offst_nooff Evidence For Offset Not Compelling Offset Flag Boolean flag indicating the transit signal is likely not offset from the target star regardless of the settings of other offset observational flags

Period-Epoch Match Flags
(set automatically from the period-epoch match table)

Database Column Name Table Label Description
fpwg_perep_match Period-Epoch Match To Parent Flag Boolean flag indicating this KOI is the child of a known period-epoch match parent
fpwg_perep_direct Direct PRF Contamination Period-Epoch Match Flag Boolean flag indicating the period-epoch match is due to being in the wings of the parent PRF
fpwg_perep_col Column Effect Period-Epoch Match Flag Boolean flag indicating the period-epoch match is due to a parent in the same CCD column
fpwg_perep_ghost Optical Ghost Period-Epoch Match Flag Boolean flag indicating the period-epoch match is due to optical ghosting of the parent
fpwg_perep_video Video Crosstalk Period-Epoch Match Flag Boolean flag indicating the period-epoch match is due to video crosstalk of the parent on another channel
fpwg_perep_ref Reflected Light Period-Epoch Match Flag Boolean flag indicating the period-epoch match is due to reflected light from the parent

False Alarm Observational Flags
(set by manual inspection)

Database Column Name Table Label Description
fpwg_fa_starvar Stellar Variability False Alarm Flag Boolean flag indicating that transit detection is due to stellar variability, not a transiting or eclipsing body
fpwg_fa_unique Transit Not Unique False Alarm Flag Boolean flag indicating the detected transit signal is not obviously different from other signals in the flux light curve
fpwg_fa_thermal Thermal Event False Alarm Flag Boolean flag indicating the detected transit signal is caused by an identified thermal event in the flux light curve
fpwg_fa_ntl Not Transit Like False Alarm Flag Boolean flag indicating the detected transit signal is not consistent with a transit or eclipse
fpwg_fa_artifact Image Artifact False Alarm Flag Boolean flag indicating the detected transit signal is due to an image artifact such as a sudden pixel sensitivity dropout
fpwg_fa_other Other False Alarm Flag Boolean flag indicating the detected transit signal is a false alarm for reasons not captured in other flags. Details given in comments.
fpwg_fa_notfa Evidence For False Alarm Not Compelling Flag Boolean flag indicating the transit signal is likely not a false alarm regardless of the settings of other false alarm observational flags.

Follow-up Observational Flags
(set by manual inspection)

Database Column Name Table Label Description
fpwg_fop_rvs1 Single-line RVs At Transit Ephemeris FOP Flag Boolean flag indicating that single line spectroscopic radial velocities have been measured at the transit ephemeris that are not consistent with a planetary interpretation
fpwg_fop_rvs2 Double-line RVs At Transit Ephemeris FOP Flag Boolean flag indicating that double line spectroscopic radial velocities have been measured at the transit ephemeris that are not consistent with a planetary interpretation
fpwg_fop_rvs3 RVs Not At Transit Ephemeris FOP Flag Boolean flag indicating that spectroscopic radial velocities indicating a stellar binary have been measured but it is not known if they match the transit ephemeris
fpwg_fop_dblline Composite Spectrum FOP Flag Boolean flag indicating that spectroscopy indicates more than one star at the target star location
fpwg_fop_imexam HighRes Image Examined FOP Flag Boolean flag indicating the high-resolution imaging has been examined for this KOI
fpwg_fop_imblend HighRes Image Shows Blend FOP Flag Boolean flag indicating that high-resolution imaging shows one or more stars very close to the target star

External False Positive Identification Information

Database Column Name Table Label Description
fpwg_efp_public Publicly Identified False Positive Flag Boolean flag indicating that a publication has declared this KOI a false positive. Citation(s) given in comments.
fpwg_efp_pubexam Examined By FPWG Boolean flag indicating the FPWG has examined the publication(s)
fpwg_efp_accept Accepted As FP By FPWG Flag Boolean flag indicating the FPWG agrees with the publication's conclusion that this KOI is a false positive

Supporting Observational Data
(set automatically from SO sources, if available)

Database Column Name Table Label Description
fpwg_obs_ra Observed RA Offset from Target Star [arcsec] Measured RA offset from the target star in arcsec
fpwg_obs_ra_err Observed RA Offset Uncertainty [arcsec] RA offset uncertainty in arcsec
fpwg_obs_dec Observed Dec Offset from Target Star [arcsec] Measured Dec offset from the target star in arcsec
fpwg_obs_dec_err Observed Dec Offset Uncertainty [arcsec] Dec offset uncertainty in arcsec
fpwg_obs_offst Observed Offset from Target Star [arcsec] Measured offset from the target star in arcsec
fpwg_obs_off_err Observed Offset Uncertainty [arcsec] Measured offset uncertainty in arcsec
fpwg_obs_uncunit Observed Offset from Target Star in Units of Uncertainty Measured offset from the target star divided by the measurement uncertainty
fpwg_obs_kepid

KIC Identifier of Star at Transit Location

Identifying information about the star at the transit source location
fpwg_obs_kepmag Kepler-band Magnitude of Star at Transit Location Kepler magnitude of the star at the transit source location
fpwg_obs_depth Modeled depth on star at transit location The depth of a transit or eclipse on the background star required to match the observed KOI depth after accounting for dilution
fpwg_obs_idprov Provenance of Star at Transit Location Data/ID source for the star at the transit source location (e.g. KIC, UKIRT, hires imaging, etc.)
fpwg_obs_secdep Measured Secondary Transit Depth Measured depth of the observed secondary in the flux light curve
fpwg_obs_albedo Inferred Albedo Albedo inferred from the observed secondary in the flux light curve
fpwg_comment FOD Comment Free text field with FPWG comments
fpwg_tablename Kepler False Positive Table Identifier Identifier for false positive information
fpwg_vet_date Vetting Date Most recent vetting date


Last updated: 2 June 2016