Table information for 'alerce_tap.lsst_mpc_orbits'

General

Table Description:

Complete orbital solutions from the Minor Planet Center for solar system objects, including Keplerian orbital elements, non-gravitational parameters (Yarkovsky, SRP, A1-A3), observational arc statistics, fit quality metrics, and Earth MOID calculations.

This table is available for ADQL queries and through the TAP endpoint.

Resource Description:

Multi-survey astronomical object catalog containing astrometric and statistical information from multiple surveys. This table provides aggregated properties for astronomical objects including position, detection statistics, and temporal coverage.

For a list of all services and tables belonging to this table's resource, see Information on resource 'ALeRCE Multi-Survey Object Catalog'

Citing this table

To cite the table as such, we suggest the following BibTeX entry:

@MISC{vo:alerce_tap_lsst_,
  year=2026,
  title={Minor Planet Center Orbital Elements},
  author={{ALeRCE} Team},
  url={http://tap.alerce.online/tableinfo/alerce_tap.lsst_mpc_orbits},
  howpublished={{VO} resource provided by the {ALeRCE} {TAP} service}
}

Columns

Sorted alphabetically. [Sort by DB column index]

NameTable Head DescriptionUnitUCD
a A Semi Major Axis [au] AU pos.distance;src.orbital
a1 A1 A1 non-grav components [m^2/ton] m2.t-1 phys.acceleration
a1_unc A1_unc A1 non-gravitational parameter uncertainty N/A stat.error
a2 A2 A2 non-grav components [m^2/ton] m2.t-1 phys.acceleration
a2_unc A2_unc A2 non-gravitational parameter uncertainty N/A stat.error
a3 A3 A3 non-grav components [m^2/ton] m2.t-1 phys.acceleration
a3_unc A3_unc A3 non-gravitational parameter uncertainty N/A stat.error
a_unc A_unc Uncertainty on Semi Major Axis [au] AU stat.error;pos.distance;src.orbital
arc_length_sel Arc_length_sel Arc length over total observations *selected* [days] d time.interval
arc_length_total Arc_length_total Arc length over total observations [days] d time.interval
argperi Argperi Argument of Pericenter [degrees] deg src.orbital.periastron
argperi_unc Argperi_unc Uncertainty on Argument of Pericenter [degrees] deg stat.error;src.orbital.periastron
created_at Created_at When this row was created N/A time.creation;meta.dataset
created_date Created_date Date record was created N/A time.creation
designation Designation The unpacked primary provisional designation for this object N/A meta.id;src
dt Dt DT non-grav component N/A time.interval
dt_unc Dt_unc Time offset uncertainty d stat.error;time.interval
e E Eccentricity N/A src.orbital.eccentricity
e_unc E_unc Uncertainty on Eccentricity N/A stat.error;src.orbital.eccentricity
earth_moid Earth_moid Earth minimum orbit intersection distance AU phys.distance;pos.earth
epoch_mjd Epoch_mjd Epoch in MJD d time.epoch
fitting_datetime Fitting_datetime DateTime of orbital fit N/A time.processing
g G Slope parameter G N/A phot.mag
h H Absolute magnitude H mag phys.magAbs
i I Inclination [degrees] deg src.orbital.inclination
i_unc I_unc Uncertainty on Inclination [degrees] deg stat.error;src.orbital.inclination
mean_anomaly Mean_anomaly Mean Anomaly [degrees] deg src.orbital.meanAnomaly
mean_anomaly_unc Mean_anomaly_unc Mean anomaly uncertainty deg stat.error
mean_motion Mean_motion Orbital Mean Motion [degrees per day] deg.d-1 src.orbital.meanMotion
mean_motion_unc Mean_motion_unc Mean motion uncertainty deg/d stat.error
mpc_orb_jsonb Mpc_orb_jsonb Details of the orbit solution in JSON form N/A meta
nobs_total Nobs_total Total number of all observations (optical + radar) available N/A meta.number
nobs_total_sel Nobs_total_sel Total number of all observations (optical + radar) selected for use in orbit fitting N/A meta.number
node Node Longitude of Ascending Node [degrees] deg src.orbital.node
node_unc Node_unc Uncertainty on Longitude of Ascending Node [degrees] deg stat.error;src.orbital.node
nopp Nopp Number of oppositions N/A meta.number
normalized_rms Normalized_rms Normalized RMS of fit N/A stat.fit.residual
not_normalized_rms Not_normalized_rms Non-normalized RMS of fit N/A stat.fit.residual
orbit_type_int Orbit_type_int Orbit type code N/A meta.code
packed_primary_provisional_designation Packed_primary_provisional_designation The primary provisional designation in packed form (e.g. K08A00B) N/A meta.id;src
peri_time Peri_time Time from Pericenter Passage [days] d time.epoch
peri_time_unc Peri_time_unc Time of perihelion passage uncertainty d stat.error;time.epoch
period Period Orbital Period [days] d time.period.revolution;src.orbital
period_unc Period_unc Orbital period uncertainty d stat.error;time.period
q Q Pericenter Distance [au] AU pos.distance;src.orbital
q_unc Q_unc Uncertainty on Pericenter Distance [au] AU stat.error;pos.distance;src.orbital
srp Srp Solar-Radiation Pressure Component [m^2/ton] m2.t-1 phys.acceleration
srp_unc Srp_unc Solar radiation pressure parameter uncertainty N/A stat.error
ssobjectid Ssobjectid Solar system object identifier N/A meta.id;src
u_param U_param U parameter N/A meta.code
unpacked_primary_provisional_designation Unpacked_primary_provisional_designation The primary provisional designation in unpacked form (e.g. 2008 AB) N/A meta.id;src
updated_at Updated_at When this row was updated N/A time.processing;meta.dataset
updated_date Updated_date Date record was last updated N/A time.processing
yarkovsky Yarkovsky Yarkovsky Component [10^(-10)*au/day^2] 1e-10.au.d-2 phys.acceleration
yarkovsky_unc Yarkovsky_unc Yarkovsky effect parameter uncertainty N/A stat.error

Columns that are parts of indices are marked like this.

VOResource

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