Data Preview 0.3
Data Preview 0.3 (ten-year version): Contains the catalog products of a Solar System Science Collaboration simulation of the results of SSO analysis of the wide-fast-deep data from the full LSST ten-year dataset.
DiaSource
Table to store 'difference image sources' - sources detected at SNR >=5 on difference images.
Index | Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|---|
band | char | Name of the band used to take the exposure where this source was measured | ||
ccdVisitId | long | Id of the ccdVisit where this diaSource was measured. Note that we are allowing a diaSource to belong to multiple amplifiers, but it may not span multiple ccds. | ||
dec | double | deg | Dec-coordinate of the center of this diaSource. | |
decErr | float | deg | Uncertainty of dec. | |
decTrue | double | True (noiseless) declination of the simulated diaSource | ||
diaObjectId | long | Id of the diaObject this source was associated with, if any. If not, it is set to NULL (each diaSource will be associated with either a diaObject or ssObject). | ||
diaSourceId | long | Unique id. | ||
mag | float | Magnitude. This is a placeholder and should be replaced by flux. | ||
magErr | float | Magnitude error. This is a placeholder and should be replaced by flux error. | ||
magTrueVband | float | True (noiseless) V-band magnitude of the simulated diaSource | ||
midPointMjdTai | double | d | Effective mid-exposure time for this diaSource. | |
nameTrue | char | MPC or simulation designation of the moving object | ||
ra | double | deg | RA-coordinate of the center of this diaSource. | |
raErr | float | deg | Uncertainty of ra. | |
raTrue | double | True (noiseless) right ascension of the simulated diaSource | ||
ra_dec_Cov | float | deg**2 | Covariance between ra and dec. | |
snr | float | The signal-to-noise ratio at which this source was detected in the difference image. | ||
ssObjectId | long | Id of the ssObject this source was associated with, if any. If not, it is set to NULL (each diaSource will be associated with either a diaObject or ssObject). | ||
ssObjectReassocTime | timestamp | Time when this diaSource was reassociated from diaObject to ssObject (if such reassociation happens, otherwise NULL). |
MPCORB
The orbit catalog produced by the Minor Planet Center. Ingested daily. O(10M) rows by survey end. The columns are described at https://minorplanetcenter.net//iau/info/MPOrbitFormat.html
Index | Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|---|
arc | float | d | MPCORB: Arc (days), for single-opposition objects | |
arcEnd | timestamp | MPCORB: Year of last observation (for multi-opposition objects) | ||
arcStart | timestamp | MPCORB: Year of first observation (for multi-opposition objects) | ||
computer | char | MPCORB: Computer name | ||
e | double | MPCORB: Orbital eccentricity | ||
epoch | double | d | MPCORB: Epoch (in MJD, .0 TT) | |
flags | int | MPCORB: 4-hexdigit flags. See https://minorplanetcenter.net//iau/info/MPOrbitFormat.html for details | ||
fullDesignation | char | MPCORB: Readable designation | ||
incl | double | deg | MPCORB: Inclination to the ecliptic, J2000.0 (degrees) | |
lastIncludedObservation | float | d | MPCORB: Date of last observation included in orbit solution | |
mpcDesignation | char | MPCORB: Number or provisional designation (in packed form) | ||
mpcG | float | MPCORB: Slope parameter, G | ||
mpcH | float | mag | MPCORB: Absolute magnitude, H | |
mpcNumber | int | MPC number (if the asteroid has been numbered; NULL otherwise). Provided for convenience. | ||
n | double | deg/d | MPCORB: Mean daily motion (degrees per day) | |
nobs | int | MPCORB: Number of observations | ||
node | double | deg | MPCORB: Longitude of the ascending node, J2000.0 (degrees) | |
nopp | int | MPCORB: Number of oppositions | ||
peri | double | deg | MPCORB: Argument of perihelion, J2000.0 (degrees) | |
pertsLong | char | MPCORB: Precise indicator of perturbers (blank if unperturbed one-opposition object) | ||
pertsShort | char | MPCORB: Coarse indicator of perturbers (blank if unperturbed one-opposition object) | ||
q | double | AU | MPCORB: Perihelion distance (AU) | |
reference | char | MPCORB: Reference | ||
rms | float | arcsec | MPCORB: r.m.s residual (") | |
ssObjectId | long | LSST unique identifier (if observed by LSST) | ||
tperi | double | d | MPCORB: MJD of pericentric passage | |
uncertaintyParameter | char | MPCORB: Uncertainty parameter, U |
SSObject
LSST-computed per-object quantities. 1:1 relationship with MPCORB. Recomputed daily, upon MPCORB ingestion.
Index | Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|---|
MOID | float | AU | Minimum orbit intersection distance to Earth | |
MOIDDeltaV | float | km/s | DeltaV at the MOID point | |
MOIDEclipticLongitude | float | deg | Ecliptic longitude of the MOID point | |
MOIDTrueAnomaly | float | deg | True anomaly of the MOID point | |
arc | float | d | Arc of LSST observations | |
discoverySubmissionDate | double | d | The date the LSST first linked and submitted the discovery observations to the MPC. May be NULL if not an LSST discovery. The date format will follow general LSST conventions (MJD TAI, at the moment). | |
firstObservationDate | double | d | The time of the first LSST observation of this object (could be precovered) | |
flags | long | Flags, bitwise OR tbd. | ||
g_Chi2 | float | Chi^2 statistic of the phase curve fit (g band) | ||
g_G12 | float | mag | Best fit G12 slope parameter (g band) | |
g_G12Err | float | mag | Uncertainty of G12 (g band) | |
g_H | float | mag | Best fit absolute magnitude (g band) | |
g_HErr | float | mag | Uncertainty of H (g band) | |
g_H_gG12_Cov | float | mag**2 | H-G12 covariance (g band) | |
g_Ndata | int | The number of data points used to fit the phase curve (g band) | ||
i_Chi2 | float | Chi^2 statistic of the phase curve fit (i band) | ||
i_G12 | float | mag | Best fit G12 slope parameter (i band) | |
i_G12Err | float | mag | Uncertainty of G12 (i band) | |
i_H | float | mag | Best fit absolute magnitude (i band) | |
i_HErr | float | mag | Uncertainty of H (i band) | |
i_H_iG12_Cov | float | mag**2 | H-G12 covariance (i band) | |
i_Ndata | int | The number of data points used to fit the phase curve (i band) | ||
maxExtendedness | float | maximum `extendedness` value from the DIASource | ||
medianExtendedness | float | median `extendedness` value from the DIASource | ||
minExtendedness | float | minimum `extendedness` value from the DIASource | ||
numObs | int | Number of LSST observations of this object | ||
r_Chi2 | float | Chi^2 statistic of the phase curve fit (r band) | ||
r_G12 | float | mag | Best fit G12 slope parameter (r band) | |
r_G12Err | float | mag | Uncertainty of G12 (r band) | |
r_H | float | mag | Best fit absolute magnitude (r band) | |
r_HErr | float | mag | Uncertainty of H (r band) | |
r_H_rG12_Cov | float | mag**2 | H-G12 covariance (r band) | |
r_Ndata | int | The number of data points used to fit the phase curve (r band) | ||
ssObjectId | long | Unique identifier. | ||
u_Chi2 | float | Chi^2 statistic of the phase curve fit (u band) | ||
u_G12 | float | mag | Best fit G12 slope parameter (u band) | |
u_G12Err | float | mag | Uncertainty of G12 (u band) | |
u_H | float | mag | Best fit absolute magnitude (u band) | |
u_HErr | float | mag | Uncertainty of H (u band) | |
u_H_uG12_Cov | float | mag**2 | H-G12 covariance (u band) | |
u_Ndata | int | The number of data points used to fit the phase curve (u band) | ||
y_Chi2 | float | Chi^2 statistic of the phase curve fit (y band) | ||
y_G12 | float | mag | Best fit G12 slope parameter (y band) | |
y_G12Err | float | mag | Uncertainty of G12 (y band) | |
y_H | float | mag | Best fit absolute magnitude (y band) | |
y_HErr | float | mag | Uncertainty of H (y band) | |
y_H_yG12_Cov | float | mag**2 | H-G12 covariance (y band) | |
y_Ndata | int | The number of data points used to fit the phase curve (y band) | ||
z_Chi2 | float | Chi^2 statistic of the phase curve fit (z band) | ||
z_G12 | float | mag | Best fit G12 slope parameter (z band) | |
z_G12Err | float | mag | Uncertainty of G12 (z band) | |
z_H | float | mag | Best fit absolute magnitude (z band) | |
z_HErr | float | mag | Uncertainty of H (z band) | |
z_H_zG12_Cov | float | mag**2 | H-G12 covariance (z band) | |
z_Ndata | int | The number of data points used to fit the phase curve (z band) |
SSSource
LSST-computed per-source quantities. 1:1 relationship with DiaSource. Recomputed daily, upon MPCORB ingestion.
Index | Column Name | Data Type | Unit | Description [UCD] |
---|---|---|---|---|
diaSourceId | long | Unique identifier of the observation | ||
eclipticBeta | double | deg | Ecliptic latitude | |
eclipticLambda | double | deg | Ecliptic longitude | |
galacticB | double | deg | Galactic latitute | |
galacticL | double | deg | Galactic longitude | |
heliocentricDist | float | AU | Heliocentric distance | |
heliocentricVX | float | AU | Cartesian heliocentric X velocity (at the emit time) | |
heliocentricVY | float | AU | Cartesian heliocentric Y velocity (at the emit time) | |
heliocentricVZ | float | AU | Cartesian heliocentric Z velocity (at the emit time) | |
heliocentricX | float | AU | Cartesian heliocentric X coordinate (at the emit time) | |
heliocentricY | float | AU | Cartesian heliocentric Y coordinate (at the emit time) | |
heliocentricZ | float | AU | Cartesian heliocentric Z coordinate (at the emit time) | |
mpcUniqueId | long | MPC unique identifier of the observation | ||
phaseAngle | float | deg | Phase angle | |
predictedDecErr | float | deg | Predicted Dec uncertainty | |
predictedMagnitude | float | mag | Predicted magnitude | |
predictedMagnitudeErr | float | mag | Prediction uncertainty (1-sigma) | |
predictedRaDecCov | float | deg**2 | Predicted R.A./Dec covariance | |
predictedRaErr | float | deg | Predicted R.A. uncertainty | |
residualDec | double | deg | Residual Dec vs. ephemeris | |
residualRa | double | deg | Residual R.A. vs. ephemeris | |
ssObjectId | long | Unique identifier of the object. | ||
topocentricDist | float | AU | Topocentric distace | |
topocentricVX | float | AU | Cartesian topocentric X velocity (at the emit time) | |
topocentricVY | float | AU | Cartesian topocentric Y velocity (at the emit time) | |
topocentricVZ | float | AU | Cartesian topocentric Z velocity (at the emit time) | |
topocentricX | float | AU | Cartesian topocentric X coordinate (at the emit time) | |
topocentricY | float | AU | Cartesian topocentric Y coordinate (at the emit time) | |
topocentricZ | float | AU | Cartesian topocentric Z coordinate (at the emit time) |
SDM Schemas is maintained by Rubin Observatory.