Unique Kepler ID. Also used in Kepler Target Catalog and in naming data files. Note there are 4,374,730 entries in the KIC_CT joined table range: 482,490 to 13,129,811
2MASS catalog ID, a sexagesimal, equatorial position-based source name in the form: hhmmssss+ddmmsss[ABC...] (Note this entry was added by MAST, and was not included in the KIC). example: 19045085+3723043
A unique identification number which was defined during final processing to identify a 2Mass catalog entry. The unique identification number is referred to as pts_key/cntr. See the User's Guide to the 2Mass All Sky Data Release, at http://www.ipac.caltech.edu/2mass/releases/allsky/doc/explsup.html for information on the pts_key/cntr field. range: 79224945 to 1305757552
Describes difference (if any) between 2MASS values derived by MAST staff and the original KIC 2MASS entries. (See the KIC table to find the original uncorrected values.) Conditions currently flagged include: null - KIC '2MASS ID' contained a null entry and MAST could not find a match, 0 - KIC non-null value agreed with value found by MAST, 1 - a new entry replaced a null KIC entry, 2 - a null entry replaced a KIC non-null entry, 3 - a new non-null entry replaced a non-null KIC entry. See the 2mass notes for more information.
Right Ascension (J2000) in decimal degrees from KIC. All but roughly 36,000 photometric standards, are within the Kepler FOV. range: 279.21 to 302.31 degrees
Data availability flag. 0 = not observed or planned to be observed, 1 = target is either planned to be observed or has been observed but data has not yet been archived, and 2 = data for the particular target has been archived. The flag values will be updated quarterly. 0, 1 or 2
A flag where 0 = star and 1 = galaxy. The original USNO-B catalog codes these with 11 values, depending on the degree that measured image profile was consistent with a point source. The USNO-B codes were star = 6-11 and galaxy = 0-5. (KIC targets only) 1? = USNO-B values 0 to 5 (i.e., a galaxy), 0? = values 6 to 11 (i.e., a star). The values 0 - 11 were a measure of the similarity between a given image to a stellar point spread function. 0 is quite dissimilar, 11 means quite similar.
Constant/variable indicator based on data from the General Catalog of Variable Stars. (Additional catalogs may be used in future versions.) (KIC targets only) 0 - constant, 1 - variable
Source of Kepler-band magnitude. (KIC targets only) SCP, NOCAL, 2MASS, UNCAL, PHOTO, TYBV SCP - SCP values for SDSSg and SDSSr were used to compute KEPMAG using equation below . The error for KEPMAG is roughly 0.03 mag., NOCAL - No calibration to optical mag. possible, used for entries from non-optical catalogs. KEPMAG field is null. , 2MASS - Objects found only in 2MASS Catalog with no optical counterpart, KEPMAG is null, UNCAL - KEPMAG copied from a single color of the parent catalog, uncertainty could be 1.0 mag or higher, PHOTO - parent catalog contained a red and blue mag. obtained from Photographic photometry. Values used to compute KEPMAG on the basis of: SDSSg=blue SDSSr=red color=SDSSg-SDSSr if (color<=0.8) kepmag = 0.8*SDSSr + 0.2*SDSSg else kepmag = 0.9*SDSSr+0.1*SDSSg, internal photographic errors have errors of 0.2 mag suggest KEPMAG errors of 0.03 mag, TYBV - parent catalog is Tycho-2 and this gives B and V magnitudes. KEPMAG value computed from SDSSg=0.54*b+0.46*v-0.07 SDSSr=-0.44*b+1.44*v+0.12 using same transformation as above to calc. KEPMAG. Errors same as for TYCHO-2 catalog.
Photometry quality indicator. (KIC targets only) range: Integer from 0 to 8 which is the count of non-null entries in USNO-B1.0 (O,E,J,F,N), UCAC-2 (R), TYcho-2 (B,V). In general the more colors the more likely the star is real. For NOCAL and 2MASS entries, this value = 0. Stars with low values (e.g., < 3) may not be real and should be verified by other means.
Astrophysics quality indicator. Placeholder for SCP values not yet determined. (KIC targets only) range: currently 0 to 6 which is the count of all non-null entries in Teff, logG, FeH, AV, E(B-V), and Radius.
2MASS J-band magnitude. . In some cases KIC values were replaced with values based on cross-correlations performed by MAST. (See 2mass_conflict_flag). See explanations for more infomation. range: 1.07 to 19.87
2MASS H-band magnitude. In some cases KIC values were replaced with values based on cross-correlations performed by MAST. (See 2mass_conflict_flag). See explanations for more infomation. range: 0.01 to 20.52
2MASS K-band magnitude. In some cases KIC values were replaced with values based on cross-correlations performed by MAST. (See 2mass_conflict_flag). See explanations for more infomation. range: 0.001 to 18.59.
A magnitude computed according to a hierarchical scheme and depends on what pre-existing catalog source is available, SCP, Tycho 2, or photographic photometry, in order of preferred selection. For SCP stars the magnitude is synthesized from the Sloan-like g and r magnitudes according to the following prescription: if one defines 'color' as g - r, then for color less than or equal to 0.8 kepmag = 0.8r + 0.2g, while for color greater than 0.8 kepmag = 0.9r + 0.1g. Empirical measurements for presumed constant stars suggest that the r.m.s. for this quantity is slightly larger 0.02 mags. except for very faint and bright stars. See explanations for more infomation. range: 4.49 to 24.99
USNO Right Ascension in decimal degrees range: 279.62 to 301.84, although values are stored in decimal degrees, valid formats for queries include: "19 28 29.65", "19h28m29s", 292.12354
USNO Declination in decimal degrees range: 36.52 to 52.40, stored in decimal degrees but can be queried using values such as: "+37 14 04.5", "37.23458"
GALEX Right Ascension in decimal degrees range: 279.63 to 300.10, although values are stored in decimal degrees, valid formats for queries include: "19 28 29.65", "19h28m29s", 292.12354
GALEX Declination in decimal degrees range: 36.61 to 51.42, stored in decimal degrees but can be queried using values such as: "+37 14 04.5", "37.23458"
Right Ascension (J2000) in decimal degrees from 2MASS. All but roughly 36,000 photometric standards, are within the Kepler FOV. range: 279.21 to 302.31 degrees
Declination (J2000) in decimal degrees from 2MASS. All but roughly 36,000 photometric standards, are within the Kepler FOV. range: 36.3 to 52.72 degrees
UKIRT/WFCAM Right Ascension in decimal degrees range: 279.57 to 301.31, although values are stored in decimal degrees, valid formats for queries include: "19 28 29.65", "19h28m29s", 292.12354
UKIRT/WFCAM Declination in decimal degrees range: 36.49 to 52.72, stored in decimal degrees but can be queried using values such as: "+37 14 04.5", "37.23458"
J band magnitude in a 2 arcsec diameter aperture on the WFCAM MKO (Vega based) system. This is the default UKIRT magnitude to use for stars. The photometric pipeline provides a maximum likelihood estimate in cases where apertures around multiple sources overlap See explanations for more infomation. range: 10.0 to 20
Error bits information relating to reliability of photometry. The number ranges from 0 to 2**32 -1 The flags are ranked in order of severity. Our Color Table restricts entries to those with severity flag values less than 256. See http://cdsarc.u-strasbg.fr/viz-bin/Cat?ii/316 range: 0 to 80
An integer value from 1 to 84 describing the module/channel where the target falls. It's equivalent to the channel number during season 2. The sky group is an integer that groups stars together on the sky depending on which channel they fall on (or near) during season 2. Due to slight asymmetries in the CCD array layout, positions are not perfectly maintained upon seasonal rotation of the spacecraft. Therefore, there are objects that fall off silicon during season 2 but are on silicon in subsequent seasons. This is especially problematic for Module 13 due to the center gap. Such stars are assigned the sky group corresponding to the other stars that fall on the same channel during other seasons. (KIC targets only) range: 1 - 84
A floating point number between 0 and 1 representing the fraction of light in the aperture due to the target star for season N. A value of 1 means all the light is from the target while a value of 0.5 means half of the light through the aperture is due to the target. (KIC targets only) range: 8e-05 to 0.999
A floating point number between 0 and 1 representing the fraction of light in the aperture due to the target star for season 1. A value of 1 means all the light is from the target while a value of 0.5 means half of the light through the aperture is due to the target. (KIC targets only) range: 2e-05 to 0.999
A floating point number between 0 and 1 representing the fraction of light in the aperture due to the target star for season 2. A value of 1 means all the light is from the target while a value of 0.5 means half of the light through the aperture is due to the target. (KIC targets only) range: 1e-04 to 0.999
A floating point number between 0 and 1 representing the fraction of light in the aperture due to the target star for season 3. A value of 1 means all the light is from the target while a value of 0.5 means half of the light through the aperture is due to the target. (KIC targets only) range: 8.4e-05 to 0.999
Measure of light contamination defined as 1 - crowding value. A value of 0 implies no contamination, 1 implies all background. (KIC targets only) range 0.001 - 0.999
Measure of light contamination defined as 1 - crowding value. A value of 0 implies no contamination, 1 implies all background. (KIC targets only) range 0.001 - 0.999
Measure of light contamination defined as 1 - crowding value. A value of 0 implies no contamination, 1 implies all background. (KIC targets only) range 0.001 - 0.999
Measure of light contamination defined as 1 - crowding value. A value of 0 implies no contamination, 1 implies all background. (KIC targets only) range 9e-04 - 0.999
The fraction of target flux that falls within the photometric aperture. A value of 1 means all the flux from the target falls within the aperture, while a value of 0 means no flux from the target falls within the photometric aperture. (KIC targets only) range 0.106 - 0.999
The fraction of target flux that falls within the photometric aperture. A value of 1 means all the flux from the target falls within the aperture, while a value of 0 means no flux from the target falls within the photometric aperture. (KIC targets only) range 0.104 to 0.999
The fraction of target flux that falls within the photometric aperture. A value of 1 means all the flux from the target falls within the aperture, while a value of 0 means no flux from the target falls within the photometric aperture. (KIC targets only) range 0.087 to 0.999
The fraction of target flux that falls within the photometric aperture. A value of 1 means all the flux from the target falls within the aperture, while a value of 0 means no flux from the target falls within the photometric aperture. (KIC targets only) range 0.103 to 0.999
The ratio of target flux collected within the photometric aperture to the statistical 1-sigma uncertainty in the collected target flux. (KIC targets only) range 0.04 to 608602
The ratio of target flux collected within the photometric aperture to the statistical 1-sigma uncertainty in the collected target flux. (KIC targets only) range 0.03 to 607510
The ratio of target flux collected within the photometric aperture to the statistical 1-sigma uncertainty in the collected target flux. (KIC targets only) range 0.04 to 607071
The ratio of target flux collected within the photometric aperture to the statistical 1-sigma uncertainty in the collected target flux. (KIC targets only) range 0.05 to 606119
Distance from photometric aperture to closest edge of CCD in pixels for season 0. See distances.html for more detailed explanation/caveats. range -8 to 511 and null
Distance from photometric aperture to closest edge of CCD in pixels for season 1. See distances.html for more detailed explanation/caveats. range -7 to 511 and null
Distance from photometric aperture to closest edge of CCD in pixels for season 2. See distances.html for more detailed explanation/caveats. range -10 to 511 and null
Distance from photometric aperture to closest edge of CCD in pixels for season 3. See distances.html for more detailed explanation/caveats. range -6 to 511 and null
Integer channel number for season 0. There are 21 modules, each with 4 outputs for a total of 84 channels. CHANNEL is an integer ranging from 1 to 84 that uniquely specifies the MODULE/OUTPUT pair. An object can have a non-zero channel number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) range: 1 to 84
Integer module number for season 0. A module refers to a pair of CCDs that share a field flattener and are read out simultaneously by the detector electronics. There are 21 modules on the focal plane. MODULE is an integer from the set [2-4,6-20,22-24]. An object can have a non-zero module number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) 2-4,6-20,22-24
Each module has four output channels (two per CCD). Each output is read out by a unique analog signal chain (e.g. amplifier). OUTPUT is an integer ranging from 1 to 4. An object can have a non-zero output number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season.
(KIC targets only) range 1 to 4
Row number for season 0 with values ranging from -232 to 1098. Each channel has 1132 columns and 1070 rows. There are 1024 science rows enumerated as rows 20 through 1043. Collateral data is enumerated as rows 0 through 19 and 1044 through 1069. Values outside 0 through 1069 are enumerated in order to provide information about how far off a target is from the CCD channel.
(KIC targets only) range -227 to 1094
Column number for season 0 defined like the Row values. Each channel has 1132 columns. There are 1100 science channels described as columns 12 - 1111. Collateral values range from 0-11 and 1112-1131. Other values ranging from -205 to -1 describe how far a target is from the CCD channel. (KIC targets only) range -203 to 1111
Integer channel number for season 1. There are 21 modules, each with 4 outputs for a total of 84 channels. CHANNEL is an integer ranging from 1 to 84 that uniquely specifies the MODULE/OUTPUT pair. An object can have a non-zero channel number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) range: 1 to 84
Integer module number for season 1. A module refers to a pair of CCDs that share a field flattener and are read out simultaneously by the detector electronics. There are 21 modules on the focal plane. MODULE is an integer from the set [2-4,6-20,22-24]. An object can have a non-zero module number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) 2-4,6-20,22-24
Each module has four output channels (two per CCD). Each output is read out by a unique analog signal chain (e.g. amplifier). OUTPUT is an integer ranging from 1 to 4. An object can have a non-zero output number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season.
(KIC targets only) range 1 to 4
Row number for season 1 with values ranging from -232 to 1098. Each channel has 1132 columns and 1070 rows. There are 1024 science rows enumerated as rows 20 through 1043. Collateral data is enumerated as rows 0 through 19 and 1044 through 1069. Values outside 0 through 1069 are enumerated in order to provide information about how far off a target is from the CCD channel.
(KIC targets only) range -229 to 1097
Column number for season 1 defined like the Row values. Each channel has 1132 columns. There are 1100 science channels described as columns 12 - 1111. Collateral values range from 0-11 and 1112-1131. Other values ranging from -205 to -1 describe how far a target is from the CCD channel. (KIC targets only) range -204 to 1111
Integer channel number for season 2. There are 21 modules, each with 4 outputs for a total of 84 channels. CHANNEL is an integer ranging from 1 to 84 that uniquely specifies the MODULE/OUTPUT pair. An object can have a non-zero channel number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) range: 1 to 84
Integer module number for season 2. A module refers to a pair of CCDs that share a field flattener and are read out simultaneously by the detector electronics. There are 21 modules on the focal plane. MODULE is an integer from the set [2-4,6-20,22-24]. An object can have a non-zero module number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) 2-4,6-20,22-24
Each module has four output channels (two per CCD). Each output is read out by a unique analog signal chain (e.g. amplifier). OUTPUT is an integer ranging from 1 to 4. An object can have a non-zero output number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season.
(KIC targets only) range 1 to 4
Row number for season 2 with values ranging from -232 to 1098. Each channel has 1132 columns and 1070 rows. There are 1024 science rows enumerated as rows 20 through 1043. Collateral data is enumerated as rows 0 through 19 and 1044 through 1069. Values outside 0 through 1069 are enumerated in order to provide information about how far off a target is from the CCD channel.
(KIC targets only) range -223 to 1092
Column number for season 2 defined like the Row values. Each channel has 1132 columns. There are 1100 science channels described as columns 12 - 1111. Collateral values range from 0-11 and 1112-1131. Other values ranging from -205 to -1 describe how far a target is from the CCD channel. (KIC targets only) range -200 to 1111
Integer channel number for season 3. There are 21 modules, each with 4 outputs for a total of 84 channels. CHANNEL is an integer ranging from 1 to 84 that uniquely specifies the MODULE/OUTPUT pair. An object can have a non-zero channel number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) range: 1 to 84
Integer module number for season 3. A module refers to a pair of CCDs that share a field flattener and are read out simultaneously by the detector electronics. There are 21 modules on the focal plane. MODULE is an integer from the set [2-4,6-20,22-24]. An object can have a non-zero module number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season. (KIC targets only) 2-4,6-20,22-24
Each module has four output channels (two per CCD). Each output is read out by a unique analog signal chain (e.g. amplifier). OUTPUT is an integer ranging from 1 to 4. An object can have a non-zero output number if it is off, but near, a CCD. Such cases can be identified by examining the expected ROW and COLUMN values for a specified season.
(KIC targets only) range 1 to 4
Row number for season 3 with values ranging from -232 to 1098. Each channel has 1132 columns and 1070 rows. There are 1024 science rows enumerated as rows 20 through 1043. Collateral data is enumerated as rows 0 through 19 and 1044 through 1069. Values outside 0 through 1069 are enumerated in order to provide information about how far off a target is from the CCD channel.
(KIC targets only) range -228 to 1096
Column number for season 3 defined like the Row values. Each channel has 1132 columns. There are 1100 science channels described as columns 12 - 1111. Collateral values range from 0-11 and 1112-1131. Other values ranging from -205 to -1 describe how far a target is from the CCD channel. (KIC targets only) range -202 to 1111
detection flag for UBV 1 = target detected in at least 2 filters, 2 = detected in U filter only, 3 = detected in B filter only, 4 = detected in V filter only
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