+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   152952 (2000 GC2) Classification: Amor [NEO]          SPK-ID: 2152952 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 92 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1870377994678779 5.1675e-08   a 1.383549646131718 3.7571e-09 au q 1.12477356486468 7.1412e-08 au i 55.29471185564037 1.6369e-05 deg node 358.6929352818414 6.8299e-06 deg peri 280.2384065334028 2.7429e-05 deg M 176.8861693031747 2.8472e-05 deg tp 2458908.433380251620 (2020-Feb-28.93338025) 4.6687e-05 TDB period 594.4160785640902 1.63 2.4213e-06 6.629e-09 d yr n .6056363765758813 2.467e-09 deg/d Q 1.642325727398755 4.4599e-09 au   Orbit Determination Parameters    # obs. used (total)      433      data-arc span      10608 days (29.04 yr)      first obs. used      1992-03-26      last obs. used      2021-04-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .44269      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 19:29:24   Additional Information  Earth MOID = .278566 au   Jupiter MOID = 3.64664 au   T_jup = 4.338  [ 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 17.6   n/a MPO264305   diameter diameter 0.776 km 0.141 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)   rotation period rot_per 4.179 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.] geometric albedo albedo 0.353   0.116 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2012ApJ...760L..12M)   152952 (2000 GC2)          Discovered 2000-Apr-02 by LINEAR at Socorro Reference: 20070402/Numbers.arc Last Updated: 2007-04-04 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 06:20 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin