+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3618 Kuprin (1979 QP8) Classification: Main-belt Asteroid          SPK-ID: 2003618 [ 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 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1781964393018932 1.7365e-08   a 3.155798123072432 1.3911e-08 au q 2.593446134385327 5.5981e-08 au i 2.023820433971239 4.5331e-07 deg node 231.9238159307772 4.039e-05 deg peri 101.0283871073988 4.0555e-05 deg M 153.2364046203323 8.8134e-06 deg tp 2458328.891012045854 (2018-Jul-29.39101205) 4.7612e-05 TDB period 2047.680748193818 5.61 1.3539e-05 3.707e-08 d yr n .1758086558744777 1.1624e-09 deg/d Q 3.718150111759537 1.6389e-08 au   Orbit Determination Parameters    # obs. used (total)      2686      data-arc span      21411 days (58.62 yr)      first obs. used      1962-08-01      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45375      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:20:09   Additional Information  Earth MOID = 1.58228 au   Jupiter MOID = 1.66726 au   T_jup = 3.180  [ 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 12.52   n/a E2021B10   diameter diameter 16.106 km 0.341 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 9.24 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: [Kurtenkov, A.; Teneva, D.; Todorov, L.; Stoyanov, S. (2014) Minor Planet Bull. 41, 36.] geometric albedo albedo 0.068   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   3618 Kuprin (1979 QP8)          Discovered 1979-Aug-20 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1979 QP8 = 1962 PA = 1974 WU = 1977 EA5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 06:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin