+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3516 Rusheva (1982 UH7) Classification: Main-belt Asteroid          SPK-ID: 2003516 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0820614867755473 4.0626e-08   a 2.885068736865366 1.1423e-08 au q 2.648315706868543 1.188e-07 au i 2.319881062816993 3.9045e-06 deg node 161.669352724325 8.6976e-05 deg peri 206.6344665545979 8.8783e-05 deg M 284.6509641303033 1.8718e-05 deg tp 2459375.134589587849 (2021-Jun-09.63458959) 9.3893e-05 TDB period 1789.916097730271 4.90 1.063e-05 2.91e-08 d yr n .2011267458047353 1.1945e-09 deg/d Q 3.121821766862188 1.236e-08 au   Orbit Determination Parameters    # obs. used (total)      2728      data-arc span      21213 days (58.08 yr)      first obs. used      1962-10-01      last obs. used      2020-10-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4351      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:59:37   Additional Information  Earth MOID = 1.64729 au   Jupiter MOID = 2.30122 au   T_jup = 3.287  [ 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 12.3   n/a MPO263377   diameter diameter 11.323 km 3.479 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 3.53 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List: [Chang, C.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.] geometric albedo albedo 0.182   0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   3516 Rusheva (1982 UH7)          Discovered 1982-Oct-21 by Karachkina, L. G. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1982 UH7 = 1962 TF = 1975 GH1 = 1984 DK2 = 1985 JN2 = 1997 YR21  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-26 19:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin