+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 42 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1389645759115289 2.1964e-08   a 2.693996197216509 8.5679e-09 au q 2.319626158163045 6.1252e-08 au i 3.273949769936653 7.721e-07 deg node 19.0736677068492 1.6281e-05 deg peri 20.14599307558565 1.981e-05 deg M 336.6776652326381 6.6248e-06 deg tp 2459305.131732996367 (2021-Mar-31.63173300) 2.9804e-05 TDB period 1615.079461572828 4.42 7.7048e-06 2.109e-08 d yr n .2228992495820718 1.0634e-09 deg/d Q 3.068366236269973 9.7586e-09 au   Orbit Determination Parameters    # obs. used (total)      3044      data-arc span      17626 days (48.26 yr)      first obs. used      1972-11-09      last obs. used      2021-02-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .40957      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 15:02:03   Additional Information  Earth MOID = 1.32656 au   Jupiter MOID = 2.34449 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 12.28   n/a E2021B10   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 ] 2021-Apr-18 19:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin