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
- High-Level Dispositions
- Flux-based Observational Flags
- Offset Observational Flags
- Period-Epoch Match Flags
- False Alarm Observational Flags
- Follow-up Observational Flags
- External False Positive Identification Information
- Supporting Observational Data
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 |
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. |
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
