+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 84 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1735350215327044 2.6545e-08   a 2.369119843171456 5.714e-09 au q 1.95799458017314 6.2286e-08 au i 6.086552663350623 3.3769e-06 deg node 190.5657762093649 2.7767e-05 deg peri 84.29058737074045 2.966e-05 deg M 254.1992399284478 1.2032e-05 deg tp 2459787.940050895461 (2022-Jul-27.44005090) 4.5189e-05 TDB period 1331.922551662805 3.65 4.8186e-06 1.319e-08 d yr n .2702859858860166 9.7784e-10 deg/d Q 2.780245106169772 6.7056e-09 au   Orbit Determination Parameters    # obs. used (total)      3477      data-arc span      28812 days (78.88 yr)      first obs. used      1942-07-11      last obs. used      2021-05-29      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .39044      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 11:38:50   Additional Information  Earth MOID = .953205 au   Jupiter MOID = 2.34787 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 12.02   n/a MPO614063   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-Jul-29 12:46 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin