+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3233 Krisbarons (1977 RA6) Classification: Main-belt Asteroid          SPK-ID: 2003233 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .102798663436743 2.8527e-08   a 2.226295113400813 5.7963e-09 au q 1.997434951327457 6.6055e-08 au i 3.602792417420501 3.4079e-06 deg node 347.5986188710733 4.0516e-05 deg peri 65.76416923449224 4.3717e-05 deg M 327.4097039702788 1.6538e-05 deg tp 2459310.339445305908 (2021-Apr-05.83944531) 5.5817e-05 TDB period 1213.312093700096 3.32 4.7384e-06 1.297e-08 d yr n .2967084906424612 1.1587e-09 deg/d Q 2.455155275474168 6.3921e-09 au   Orbit Determination Parameters    # obs. used (total)      2986      data-arc span      28850 days (78.99 yr)      first obs. used      1942-01-20      last obs. used      2021-01-15      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .3808      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 01:08:54   Additional Information  Earth MOID = 1.01061 au   Jupiter MOID = 2.82148 au   T_jup = 3.636  [ 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 13.13   n/a E2021B10   diameter diameter 4.130 km 0.129 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 888. 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: [Rowe, B. (2018) Minor Planet Bull. 45, 292-294.] geometric albedo albedo 0.542   0.077 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   3233 Krisbarons (1977 RA6)          Discovered 1977-Sep-09 by Chernykh, N. at Nauchnyj Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1977 RA6 = 1929 EF = 1942 BE = 1952 BJ2 = 1962 EF = 1976 JA5 = 1977 TG4 = 1979 FB3 = 1980 RA4 = A909 BH  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-25 08:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin