Planetary Systems and Planetary Systems Composite Parameters Table Definitions

This page describes the parameters available in the Planetary Systems (ps) and Planetary Systems Composite Parameters (pscomppars) interactive tables. These parameters can also be retrieved programmatically through the archive's Table Access Protocol (TAP) service.

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Additional Default Columns
Names
System Composition
Planet Discovery
Detections
Planet Parameters
Stellar Data
System Data
Position
Photometry
Dates
Additional Data

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Additional Default Columns

The parameters in this section are displayed when the interactive table is first loaded, and when Reset Filters is clicked, but do not fit in any of the other categories listed on this page.

Database Column Name Table Label Description In PS Table In PSCP Table
default_flag† Default Parameter Set Boolean flag indicating whether given set of planet parameters has been selected as default (1=yes, 0=no) X  
soltype† Solution Type Disposition of planet according to given planet parameter set X  
pl_controv_flag† Controversial Flag Flag indicating whether the confirmation status of a planet has been questioned in the published literature (1=yes, 0=no) X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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Names

Database Column Name Table Label Description In PS Table In PSCP Table
pl_name† Planet Name Planet name most commonly used in the literature X X
hostname† Host Name Stellar name most commonly used in the literature X X
pl_letter Planet Letter Letter assigned to the planetary component of a planetary system X X
hd_name HD ID Name of the star as given by the Henry Draper Catalog X X
hip_name HIP ID Name of the star as given by the Hipparcos Catalog X X
tic_id TIC ID Name of the star as given by the TESS Input Catalog X X
gaia_id GAIA ID Name of the star as given by the Gaia Catalog X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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System Composition

Database Column Name Table Label Description In PS Table In PSCP Table
sy_snum† Number of Stars Number of stars in the planetary system X X
sy_pnum† Number of Planets Number of planets in the planetary system X X
sy_mnum Number of Moons Number of moons in the planetary system X X
cb_flag Circumbinary Flag Flag indicating whether the planet orbits a binary system (1=yes, 0=no) X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.

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Planet Discovery

Database Column Name Table Label Description In PS Table In PSCP Table
discoverymethod† Discovery Method Method by which the planet was first identified X X
disc_year† Discovery Year Year the planet was discovered X X
disc_refname Discovery Reference Reference name for discovery publication X X
disc_pubdate Discovery Publication Date Publication Date of the planet discovery referee publication X X
disc_locale Discovery Locale Location of observation of planet discovery (Ground or Space) X X
disc_facility† Discovery Facility Name of facility of planet discovery observations X X
disc_telescope Discovery Telescope Name of telescope of planet discovery observations X X
disc_instrument Discovery Instrument Name of instrument of planet discovery observations X X


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Detections

Database Column Name Table Label Description In PS Table In PSCP Table
rv_flag Detections by Radial Velocity Variations Flag indicating if the planet host star exhibits radial velocity variations due to the planet (1=yes, 0=no) X X
pul_flag Detected by Pulsar Timing Variations Boolean flag indicating if the planet host star exhibits pulsar timing variations due to the planet (1=yes, 0=no) X X
ptv_flag Detected by Pulsation Timing Variations Boolean flag indicating if the planet host star exhibits pulsation timing variations due to the planet (1=yes, 0=no) X X
tran_flag Detected by Transits Flag indicating if the planet transits its host star (1=yes, 0=no) X X
ast_flag Detected by Astrometric Variations Flag indicating if the planet host star exhibits astrometrical variations due to the planet (1=yes, 0=no) X X
obm_flag Detected by Orbital Brightness Modulations Flag indicating whether the planet exhibits orbital modulations on the phase curve (1=yes, 0=no) X X
micro_flag Detected by Microlensing Boolean flag indicating if the planetary system acted as a lens during an observed microlensing event (1=yes, 0=no) X X
etv_flag Detected by Eclipse Timing Variations Boolean flag indicating if the planet induces transit timing variations on the orbit of another another planet in the system (1=yes, 0=no) X X
ima_flag Detected by Imaging Flag indicating if the planet has been observed via imaging techniques (1=yes, 0=no) X X
dkin_flag Detection by Disk Kinematics Boolean flag indicating if the presence of the planet was inferred due to its kinematic influence on the protoplanetary disk of its host star (1=yes, 0=no) X X


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Planet Parameters

Database Column Name Table Label Description Uncertainties Column
(positive +)
(negative -)
Limit Column In PS Table In PSCP Table
pl_refname† Planetary Parameter Reference Reference of publication used for given planet parameter set     X  
pl_orbper† Orbital Period [days] Time the planet takes to make a complete orbit around the host star or system (+) pl_orbpererr1
(-) pl_orbpererr2
pl_orbperlim X X
pl_orbsmax† Orbit Semi-Major Axis [au] The longest radius of an elliptic orbit, or, for exoplanets detected via gravitational microlensing or direct imaging, the projected separation in the plane of the sky (+) pl_orbsmaxerr1
(-) pl_orbsmaxerr2
pl_orbsmaxlim X X
pl_rade† Planet Radius [Earth Radius] Length of a line segment from the center of the planet to its surface, measured in units of radius of the Earth (+) pl_radeerr1
(-) pl_radeerr2
pl_radelim X X
pl_radj† Planet Radius [Jupiter Radius] Length of a line segment from the center of the planet to its surface, measured in units of radius of Jupiter (+) pl_radjerr1
(-) pl_radjerr2
pl_radjlim X X
pl_masse Planet Mass [Earth Mass] Amount of matter contained in the planet, measured in units of masses of the Earth (+) pl_masseerr1
(-) pl_masseerr2
pl_masselim X  
pl_massj Planet Mass [Jupiter Mass] Amount of matter contained in the planet, measured in units of masses of Jupiter (+) pl_massjerr1
(-) pl_massjerr2
pl_massjlim X  
pl_msinie Planet Mass*sin(i) [Earth Mass] Minimum mass of a planet as measured by radial velocity, measured in units of masses of the Earth (+) pl_msinieerr1
(-) pl_msinieerr2
pl_msinielim X  
pl_msinij Planet Mass*sin(i) [Jupiter Mass] Minimum mass of a planet as measured by radial velocity, measured in units of masses of Jupiter (+) pl_msinijerr1
(-) pl_msinijerr2
pl_msinijlim X  
pl_cmasse Planet Mass*sin(i)/sin(i) [Earth Mass] A calculated quantity indicating the quotient of the lower limit of the measured planet mass, denoted as its mass times the sine of its inclination, and the sine of its inclination, measured in units of the mass of the Earth. This is specified for references in which the inclination is provided as well as the planet mass limit, but the true mass is not reported. (+) pl_cmasseerr1
(-) pl_cmasseerr2
pl_cmasselim X  
pl_cmassj Planet Mass*sin(i)/sin(i) [Jupiter Mass] A calculated quantity indicating the quotient of the lower limit of the measured planet mass, denoted as its mass times the sine of its inclination, and the sine of its inclination, measured in units of the mass of Jupiter. This is specified for references in which the inclination is provided as well as the planet mass limit, but the true mass is not reported. (+) pl_cmassjerr1
(-) pl_cmassjerr2
pl_cmassjlim X  
pl_bmasse† Planet Mass or Mass*sin(i) [Earth Mass] Best planet mass estimate available, in order of preference: Mass, M*sin(i)/sin(i), or M*sin(i), depending on availability, and measured in Earth masses (+) pl_bmasseerr1
(-) pl_bmasseerr2
pl_bmasselim X X
pl_bmassj† Planet Mass or Mass*sin(i) [Jupiter Mass] Best planet mass estimate available, in order of preference: Mass, M*sin(i)/sin(i), or M*sin(i), depending on availability, and measured in Jupiter masses (+) pl_bmassjerr1
(-) pl_bmassjerr2
pl_bmassjlim X X
pl_bmassprov† Planet Mass or Mass*sin(i) Provenance Provenance of the measurement of the best mass. Options are: Mass, M*sin(i)/sin(i), and M*sini     X X
pl_dens Planet Density [g/cm**3] Amount of mass per unit of volume of the planet (+) pl_denserr1
(-) pl_denserr2
pl_denslim X X
pl_orbeccen† Eccentricity Amount by which the orbit of the planet deviates from a perfect circle (+) pl_orbeccenerr1
(-) pl_orbeccenerr2
pl_orbeccenlim X X
pl_insol† Insolation Flux [Earth Flux] Insolation flux is another way to give the equilibrium temperature. It's given in units relative to those measured for the Earth from the Sun. (+) pl_insolerr1
(-) pl_insolerr2
pl_insollim X X
pl_eqt† Equilibrium Temperature [K] The equilibrium temperature of the planet as modeled by a black body heated only by its host star, or for directly imaged planets, the effective temperature of the planet required to match the measured luminosity if the planet were a black body (+) pl_eqterr1
(-) pl_eqterr2
pl_eqtlim X X
pl_orbincl Inclination [deg] Angle of the plane of the orbit relative to the plane perpendicular to the line-of-sight from Earth to the object (+) pl_orbinclerr1
(-) pl_orbinclerr2
pl_orbincllim X X
pl_tranmid Time of Conjuction (Transit Midpoint) [days] The time given by the average of the time the planet begins to cross the stellar limb and the time the planet finishes crossing the stellar limb. (+) pl_tranmiderr1
(-) pl_tranmiderr2
pl_tranmidlim X X
pl_tsystemref Time Reference Frame and Standard

Time system basis for temporal and orbital parameters

    X X
ttv_flag† Data show Transit Timing Variations

Flag indicating if the planet orbit exhibits transit timing variations from another planet in the system (1=yes, 0=no).

Note: Non-transiting planets discovered via the transit timing variations of another planet in the system will not have their TTV flag set, since they do not themselves demonstrate TTVs.

    X X
pl_imppar Impact Parameter The sky-projected distance between the center of the stellar disc and the center of the planet disc at conjunction, normalized by the stellar radius (+) pl_impparerr1
(-) pl_impparerr2
pl_impparlim X X
pl_trandep Transit Depth [%] The size of the relative flux decrement caused by the orbiting body transiting in front of the star (+) pl_trandeperr1
(-) pl_trandeperr2
pl_trandeplim X X
pl_trandur Transit Duration [hrs] The length of time from the moment the planet begins to cross the stellar limb to the moment the planet finishes crossing the stellar limb (+) pl_trandurerr1
(-) pl_trandurerr2
pl_trandurlim X X
pl_ratdor Ratio of Semi-Major Axis to Stellar Radius The distance between the planet and the star at mid-transit divided by the stellar radius. For the case of zero orbital eccentricity, the distance at mid-transit is the semi-major axis of the planetary orbit. (+) pl_ratdorerr1
(-) pl_ratdorerr2
pl_ratdorlim X X
pl_ratror Ratio of Planet to Stellar Radius The planet radius divided by the stellar radius (+) pl_ratrorerr1
(-) pl_ratrorerr2
pl_ratrorlim X X
pl_occdep Occultation Depth [%] Depth of occultation of secondary eclipse (+) pl_occdeperr1
(-) pl_occdeperr2
pl_occdeplim X X
pl_orbtper Epoch of Periastron [deg] The time of the planet's periastron passage (+) pl_orbtpererr1
(-) pl_orbtpererr2
pl_orbtperlim X X
pl_orblper Argument of Periastron [deg] The angle between the planet's ascending node and its periastron (+) pl_orblpererr1
(-) pl_orblpererr2
pl_orblperlim X X
pl_rvamp Radial Velocity Amplitude [m/s] Half the peak-to-peak amplitude of variability in the stellar radial velocity (+) pl_rvamperr1
(-) pl_rvamperr2
pl_rvamplim X X
pl_projobliq Projected Obliquity [deg] The angle between the angular momentum vector of the rotation of the host star and the angular momentum vector of the orbit of the planet, projected into the plane of the sky. Depending on the choice of coordinate system, projected obliquity is represented in the literature as either lambda (λ) or beta (β), where λ is defined as the negative of β (i.e., λ = -β). Since λ is reported more often than β, all values of β have been converted to λ. (+) pl_projobliqerr1
(-) pl_projobliqerr2
pl_projobliqlim X X
pl_trueobliq True Obliquity [deg] The angle between the angular momentum vector of the rotation of the host star and the angular momentum vector of the orbit of the planet (+) pl_trueobliqerr1
(-) pl_trueobliqerr2
pl_trueobliqlim X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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Stellar Data

Database Column Name Table Label Description Uncertainties Column
(positive +)
(negative -)
Limit Column In PS Table In PSCP Table
st_refname† Stellar Parameter Reference Reference of publication used for given stellar parameter set     X  
st_spectype Spectral Type Classification of the star based on their spectral characteristics following the Morgan-Keenan system     X X
st_teff† Stellar Effective Temperature [K] Temperature of the star as modeled by a black body emitting the same total amount of electromagnetic radiation (+) st_tefferr1
(-) st_tefferr2
st_tefflim X X
st_rad† Stellar Radius [Solar Radius] Length of a line segment from the center of the star to its surface, measured in units of radius of the Sun (+) st_raderr1
(-) st_raderr2
st_radlim X X
st_mass† Stellar Mass [Solar mass] Amount of matter contained in the star, measured in units of masses of the Sun (+) st_masserr1
(-) st_masserr2
st_masslim X X
st_met† Stellar Metallicity [dex] Measurement of the metal content of the photosphere of the star as compared to the hydrogen content (+) st_meterr1
(-) st_meterr2
st_metlim X X
st_metratio† Stellar Metallicity Ratio Ratio for the Metallicity Value ([Fe/H] denotes iron abundance, [M/H] refers to a general metal content) (+) st_metratioerr1
(-) st_metratioerr2
st_metratiolim X X
st_lum Stellar Luminosity [log(Solar)] Amount of energy emitted by a star per unit time, measured in units of solar luminosities (+) st_lumerr1
(-) st_lumerr2
st_lumlim X X
st_logg† Stellar Surface Gravity [log10(cm/s**2)] Gravitational acceleration experienced at the stellar surface (+) st_loggerr1
(-) st_loggerr2
st_logglim X X
st_age Stellar Age [Gyr] The age of the host star (+) st_ageerr1
(-) st_ageerr2
st_agelim X X
st_dens Stellar Density [g/cm**3] Amount of mass per unit of volume of the star (+) st_denserr1
(-) st_denserr2
st_denslim X X
st_vsin Stellar Rotational Velocity [km/s] Rotational velocity at the equator of the star multiplied by the sine of the inclination (+) st_vsinerr1
(-) st_vsinerr2
st_vsinlim X X
st_rotp Stellar Rotational Period [days] The time required for the planet host star to complete one rotation, assuming it is a solid body (+) st_rotperr1
(-) st_rotperr2
st_rotplim X X
st_radv Systemic Radial Velocity [km/s] Velocity of the star in the direction of the line of sight (+) st_radverr1
(-) st_radverr2
st_radvlim X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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System Data

Database Column Name Table Label Description Uncertainties Column
(positive +)
(negative -)
In PS Table In PSCP Table
sy_refname† System Parameter Reference Reference of publication used for given system parameter set   X  
sy_pm Total Proper Motion [mas/yr] Angular change in position over time as seen from the center of mass of the Solar System (+) sy_pmerr1
(-) sy_pmerr2
X X
sy_pmra Proper Motion (RA) [mas/yr] Angular change in right ascension over time as seen from the center of mass of the Solar System (+) sy_pmraerr1
(-) sy_pmraerr2
X X
sy_pmdec Proper Motion (Dec) [mas/yr] Angular change in declination over time as seen from the center of mass of the Solar System (+) sy_pmdecerr1
(-) sy_pmdecerr2
X X
sy_dist† Distance [pc] Distance to the planetary system in units of parsecs (+) sy_disterr1
(-) sy_disterr2
X X
sy_plx Parallax [mas] Difference in the angular position of a star as measured at two opposite positions within the Earth's orbit (+) sy_plxerr1
(-) sy_plxerr2
X X
pl_nnotes Number of Notes Number of Notes associated with the planet. View all notes in the Confirmed Planet Overview page.   X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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Position (System Data Subset)

Database Column Name Table Label Description Uncertainties Column
(positive +)
(negative -)
In PS Table In PSCP Table
rastr† RA [sexagesimal] Right Ascension of the planetary system in sexagesimal format   X X
decstr† Dec [sexagesimal] Declination of the planetary system in sexagesimal notation   X X
ra RA [decimal] Right Ascension of the planetary system in decimal degrees (+) raerr1
(-) raerr2
X X
dec Dec [decimal] Declination of the planetary system in decimal degrees (+) decerr1
(-) decerr2
X X
glat Galactic Latitude [deg] Galactic latitude of the planetary system in units of decimal degrees (+) glaterr1
(-) glaterr2
X X
glon Galactic Longitude [deg] Galactic longitude of the planetary system in units of decimal degrees (+) glonerr1
(-) glonerr2
X X
elat Ecliptic Latitude [deg] Ecliptic latitude of the planetary system in units of decimal degrees (+) elaterr1
(-) elaterr2
X X
elon Ecliptic Longitude [deg] Ecliptic longitude of the planetary system in units of decimal degrees (+) elonerr1
(-) elonerr2
X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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Photometry (System Data Subset)

Database Column Name Table Label Description Uncertainties Column
(positive +)
(negative -)
In PS Table In PSCP Table
sy_bmag B (Johnson) Magnitude Brightness of the host star as measured using the B (Johnson) band in units of magnitudes (+) sy_bmagerr1
(-) sy_bmagerr2
X X
sy_vmag† V (Johnson) Magnitude Brightness of the host star as measured using the V (Johnson) band in units of magnitudes (+) sy_vmagerr1
(-) sy_vmagerr2
X X
sy_jmag J (2MASS) Magnitude Brightness of the host star as measured using the J (2MASS) band in units of magnitudes (+) sy_jmagerr1
(-) sy_jmagerr2
X X
sy_hmag H (2MASS) Magnitude Brightness of the host star as measured using the H (2MASS) band in units of magnitudes (+) sy_hmagerr1
(-) sy_hmagerr2
X X
sy_kmag† Ks (2MASS) Magnitude Brightness of the host star as measured using the K (2MASS) band in units of magnitudes (+) sy_kmagerr1
(-) sy_kmagerr2
X X
sy_umag u (Sloan) Magnitude Brightness of the host star as measured using the Sloan Digital Sky Survey (SDSS) u band, in units of magnitudes (+) sy_umagerr1
(-) sy_umagerr2
X X
sy_gmag g (Sloan) Magnitude Brightness of the host star as measured using the Sloan Digital Sky Survey (SDSS) g band, in units of magnitudes (+) sy_gmagerr1
(-) sy_gmagerr2
X X
sy_rmag r (Sloan) Magnitude Brightness of the host star as measured using the Sloan Digital Sky Survey (SDSS) r band, in units of magnitudes (+) sy_rmagerr1
(-) sy_rmagerr2
X X
sy_imag i (Sloan) Magnitude Brightness of the host star as measured using the Sloan Digital Sky Survey (SDSS) i band, in units of magnitudes (+) sy_imagerr1
(-) sy_imagerr2
X X
sy_zmag z (Sloan) Magnitude Brightness of the host star as measured using the Sloan Digital Sky Survey (SDSS) z band, in units of magnitudes (+) sy_zmagerr1
(-) sy_zmagerr2
X X
sy_w1mag W1 (WISE) Magnitude Brightness of the host star as measured using the 3.4um (WISE) band in units of magnitudes. (+) sy_w1magerr1
(-) sy_w1magerr2
X X
sy_w2mag W2 (WISE) Magnitude Brightness of the host star as measured using the 4.6um (WISE) band in units of magnitudes. (+) sy_w2magerr1
(-) sy_w2magerr2
X X
sy_w3mag W3 (WISE) Magnitude Brightness of the host star as measured using the 12.um (WISE) band in units of magnitudes (+) sy_w3magerr1
(-) sy_w3magerr2
X X
sy_w4mag W4 (WISE) Magnitude Brightness of the host star as measured using the 22.um (WISE) band in units of magnitudes (+) sy_w4magerr1
(-) sy_w4magerr2
X X
sy_gaiamag† Gaia Magnitude Brightness of the host star as measuring using the Gaia band in units of magnitudes. Objects matched to Gaia using the Hipparcos or 2MASS IDs provided in Gaia DR2. (+) sy_gaiamagerr1
(-) sy_gaiamagerr2
X X
sy_icmag I (Cousins) Magnitude Brightness of the host star as measured using the I (Cousins) band in units of magnitudes. (+) sy_icmagerr1
(-) sy_icmagerr2
X X
sy_tmag TESS Magnitude Brightness of the host star as measured using the TESS bandpass, in units of magnitudes (+) sy_tmagerr1
(-) sy_tmagerr2
X X
sy_kepmag Kepler Magnitude Brightness of the host star as measured using the Kepler bandpass, in units of magnitudes (+) sy_kepmagerr1
(-) sy_kepmagerr2
X X

Default column: These columns display in the interactive table when the table is first loaded, and when Reset Filters is clicked.


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Dates (System Data Subset)

Database Column Name Table Label Description In PS Table In PSCP Table
rowupdate† Date of Last Update Date of last update of the planet parameters X  
pl_pubdate† Planetary Parameter Reference Publication Date of the publication of the given planet parameter set X  
releasedate† Release Date Date that the given planet parameter set was publicly released by the NASA Exoplanet Archive X  

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Additional Data

Database Column Name Table Label Description In PS Table In PSCP Table
st_nphot Number of Photometry Time Series Number of photometric time series records, including planet transit light curves, general transit light curves, and amateur light curves. X X
st_nrvc Number of Radial Velocity Time Series Number of literature radial velocity curves available for this star in the NASA Exoplanet Archive. X X
st_ntranspec Number of Transmission Spectroscopy Measurements Number of literature transmission spectrum measurements for this star in the NASA Exoplanet Archive X X
pl_ntranspec Number of Emission Spectroscopy Measurements Number of literature emission spectrum measurements for this star in the NASA Exoplanet Archive X X
st_nspec Number of Stellar Spectra Measurements Number of literature spectra available for this star in the NASA Exoplanet Archive X X



Last updated: 23 July 2020