+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   854 Frostia (A916 GO) Classification: Main-belt Asteroid          SPK-ID: 2000854 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 82 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1736045282041753 2.6683e-08   a 2.369145320853925 5.714e-09 au q 1.95785096517995 6.2583e-08 au i 6.086093179551544 3.4142e-06 deg node 190.5738308667828 2.7894e-05 deg peri 84.25627665623092 2.9798e-05 deg M 201.2635446459315 1.1954e-05 deg tp 2459787.800208833278 (2022-Jul-27.30020883) 4.5213e-05 TDB period 1331.94403710465 3.65 4.8186e-06 1.319e-08 d yr n .2702816259326929 9.7781e-10 deg/d Q 2.7804396765279 6.7059e-09 au   Orbit Determination Parameters    # obs. used (total)      3384      data-arc span      28743 days (78.69 yr)      first obs. used      1942-07-11      last obs. used      2021-03-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .39268      source      ORB      producer      Otto Matic      solution date      2021-May-03 18:56:32   Additional Information  Earth MOID = .951408 au   Jupiter MOID = 2.34877 au   T_jup = 3.518  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.01   n/a MPCxxxxx   diameter diameter 7.839 km 0.204 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 37.56 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R.; Bernasconi, L.; Klotz, A.; Durkee, R. (2004) IAUC 8389. (854)] [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R.; et al. (2006) Astron. Astrophys. 446, 1177-1184.] [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2011) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Marchis, F.; Enriquez, J.E.; Emery, J.P.; Mueller, M.; et al. (2012) Icarus 221, 1130-1161.] geometric albedo albedo 0.415   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   854 Frostia (A916 GO)          Discovered 1916-Apr-03 by Belyavskij, S. at Simeis Discovered at Simeis during the First World War while Simeis was not in communication with the Rechen-Institut for long periods of time were given provisional designations containing the Greek letter SIGMA. These are here abbreviated S. Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  A916 GO = 1931 MB = 1935 QE = 1950 VP  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-May-16 22:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin