+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1164 Kobolda (1930 FB) Classification: Main-belt Asteroid          SPK-ID: 2001164 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1963548950603023 4.0087e-08   a 2.305727031042368 6.565e-09 au q 1.852986241824341 9.2503e-08 au i 25.18939209183431 4.5964e-06 deg node 156.9198567659433 8.2206e-06 deg peri 341.1319610866673 1.2654e-05 deg M 297.3442990582045 1.1346e-05 deg tp 2459223.070886459547 (2021-Jan-08.57088646) 4.0873e-05 TDB period 1278.822484164212 3.50 5.4617e-06 1.495e-08 d yr n .2815089697420217 1.2023e-09 deg/d Q 2.758467820260394 7.8541e-09 au   Orbit Determination Parameters    # obs. used (total)      2069      data-arc span      33110 days (90.65 yr)      first obs. used      1930-03-19      last obs. used      2020-11-11      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .40568      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:58:50   Additional Information  Earth MOID = .873565 au   Jupiter MOID = 2.27515 au   T_jup = 3.438  [ 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 12.8   n/a MPO279525   diameter diameter 7.651 km 0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 4.141 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Higgins, D.; Oey, J. (2007) Minor Planet Bull. 34, 79-80.] [Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bull. 34, 119-122.] [Higgins, D. (2011) Minor Planet Bull. 38, 41-46.] [Warner, Brian D. (2014) Minor Planet Bull. 41, 235-241.] geometric albedo albedo 0.229   0.022 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   1164 Kobolda (1930 FB)          Discovered 1930-Mar-19 by Reinmuth, K. at Heidelberg Independent discovery Mar. 20 by W. Baade, Bergedorf, was announced first. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 23:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin