+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1363 Herberta (1935 RA) Classification: Main-belt Asteroid          SPK-ID: 2001363 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06620498488236103 3.2563e-08   a 2.902257941590528 9.6489e-09 au q 2.710113998442815 9.3506e-08 au i 1.105835298804712 3.1022e-06 deg node 214.6877817703678 0.00017685 deg peri 109.3061474846954 0.00017836 deg M 62.94531382477805 2.2758e-05 deg tp 2458684.735471646097 (2019-Jul-20.23547165) 0.00011433 TDB period 1805.936348555588 4.94 9.0061e-06 2.466e-08 d yr n .1993425738885719 9.9411e-10 deg/d Q 3.094401884738241 1.0288e-08 au   Orbit Determination Parameters    # obs. used (total)      3795      data-arc span      31125 days (85.22 yr)      first obs. used      1935-08-30      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4408      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 02:00:05   Additional Information  Earth MOID = 1.69804 au   Jupiter MOID = 2.11636 au   T_jup = 3.283  [ 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 11.3   n/a MPO347526   diameter diameter 13.913 km 2.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 3.015 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Black, S.; Linville, D.; Michalik, D.; Wolf, M.; Ditteon, R. (2016) Minor Planet Bull. 43, 287-289.] geometric albedo albedo 0.337   0.157 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1363 Herberta (1935 RA)          Discovered 1935-Aug-30 by Delporte, E. at Uccle Preliminary designation is assigned to the Sept. 3 observation. Discovery Aug. 30 was initially, and incorrectly, attributed to planet 1231. Note: "planet" implies "minor planet" Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1935 RA = 1943 ED1 = 1951 YM2 = 1952 BD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-25 21:52 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin