+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3372 Bratijchuk (1976 SP4) Classification: Main-belt Asteroid          SPK-ID: 2003372 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1391776824963107 3.7681e-08   a 2.695299418064698 1.0678e-08 au q 2.320173891424798 1.0253e-07 au i 3.273294724610254 4.143e-06 deg node 19.08587601847719 6.0468e-05 deg peri 19.96841298692213 6.174e-05 deg M 292.2726984647888 1.3913e-05 deg tp 2459304.567654940508 (2021-Mar-31.06765494) 6.3165e-05 TDB period 1616.251545496357 4.43 9.6049e-06 2.63e-08 d yr n .2227376060385716 1.3237e-09 deg/d Q 3.070424944704597 1.2164e-08 au   Orbit Determination Parameters    # obs. used (total)      2473      data-arc span      17434 days (47.73 yr)      first obs. used      1972-11-09      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44094      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 23:03:00   Additional Information  Earth MOID = 1.32811 au   Jupiter MOID = 2.3423 au   T_jup = 3.354  [ 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 12.1   n/a MPO492790   diameter diameter 21.481 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   geometric albedo albedo 0.044   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   3372 Bratijchuk (1976 SP4)          Discovered 1976-Sep-24 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1976 SP4 = 1972 VK1 = 1972 YA1 = 1981 YW = 1982 AP = A921 GA  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Sep-21 07:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin