+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1028879299463528 3.2376e-08   a 2.227078666333973 6.1597e-09 au q 1.997939152527187 7.3557e-08 au i 3.602119909239248 3.4712e-06 deg node 347.6024392257328 5.2032e-05 deg peri 65.57276199068104 5.4473e-05 deg M 268.2678693732602 1.6714e-05 deg tp 2459309.829075454271 (2021-Apr-05.32907545) 5.664e-05 TDB period 1213.952694685113 3.32 5.0364e-06 1.379e-08 d yr n .2965519180245984 1.2303e-09 deg/d Q 2.45621818014076 6.7935e-09 au   Orbit Determination Parameters    # obs. used (total)      2467      data-arc span      28685 days (78.54 yr)      first obs. used      1942-01-20      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40639      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 23:01:18   Additional Information  Earth MOID = 1.01189 au   Jupiter MOID = 2.82164 au   T_jup = 3.635  [ 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 13.1   n/a MPO384780   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. 2019-August); 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 ] 2020-Sep-19 06:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin