+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2647 Sova (1980 SP) Classification: Main-belt Asteroid          SPK-ID: 2002647 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1366538423323737 3.3945e-08   a 2.244959428131605 6.5313e-09 au q 1.938177096397132 7.7885e-08 au i 3.936979077899676 3.3875e-06 deg node 290.5806315198299 5.7639e-05 deg peri 122.3324466403585 5.9411e-05 deg M 251.2566481737612 1.5593e-05 deg tp 2459371.617459324362 (2021-Jun-06.11745932) 5.3874e-05 TDB period 1228.601869567657 3.36 5.3616e-06 1.468e-08 d yr n .2930159955939864 1.2787e-09 deg/d Q 2.551741759866077 7.4239e-09 au   Orbit Determination Parameters    # obs. used (total)      2760      data-arc span      24438 days (66.91 yr)      first obs. used      1953-09-09      last obs. used      2020-08-06      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42895      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:55:03   Additional Information  Earth MOID = .952814 au   Jupiter MOID = 2.77279 au   T_jup = 3.616  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 12.7   n/a MPO384774   diameter diameter 7.635 km 0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 9.366 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Menke, J. (2005) Minor Planet Bull. 32, 85-88.] [Pray, D. (2005) Minor Planet Bull. 32, 48-51.] [Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.303   0.056 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   2647 Sova (1980 SP)          Discovered 1980-Sep-29 by Vavrova, Z. at Klet Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1980 SP = 1950 WC = 1953 RO = 1970 RO = 1975 EC = 1977 XE = 1982 FF1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-24 03:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin