+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 44 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06621341816481949 2.0253e-08   a 2.903000201297217 9.0637e-09 au q 2.710782635036169 5.6271e-08 au i 1.105646230460497 6.4001e-07 deg node 214.6847408825734 2.6463e-05 deg peri 109.5268838803698 2.9872e-05 deg M 102.5890058721835 1.0773e-05 deg tp 2458685.665850537500 (2019-Jul-21.16585054) 5.3907e-05 TDB period 1806.629201938238 4.95 8.461e-06 2.316e-08 d yr n .1992661247885149 9.3322e-10 deg/d Q 3.095217767558264 9.6638e-09 au   Orbit Determination Parameters    # obs. used (total)      4065      data-arc span      31253 days (85.57 yr)      first obs. used      1935-08-30      last obs. used      2021-03-24      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43348      source      ORB      producer      Otto Matic      solution date      2021-May-03 19:25:20   Additional Information  Earth MOID = 1.69678 au   Jupiter MOID = 2.11536 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 11.37   n/a E2021B10   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-May-14 02:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin