+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   716 Berkeley (A911 OC) Classification: Main-belt Asteroid          SPK-ID: 2000716 [ 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 .086696965938052 3.4278e-08   a 2.811955788295865 1.0798e-08 au q 2.56816775309867 9.6483e-08 au i 8.487220794046349 3.7245e-06 deg node 145.885464451544 2.6798e-05 deg peri 56.81084354709857 3.5117e-05 deg M 136.207743900557 2.2066e-05 deg tp 2458348.855914665150 (2018-Aug-18.35591467) 0.00010577 TDB period 1722.309348959026 4.72 9.9202e-06 2.716e-08 d yr n .2090216837164509 1.2039e-09 deg/d Q 3.05574382349306 1.1734e-08 au   Orbit Determination Parameters    # obs. used (total)      2686      data-arc span      41597 days (113.89 yr)      first obs. used      1906-07-16      last obs. used      2020-06-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .43847      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 15:19:11   Additional Information  Earth MOID = 1.57793 au   Jupiter MOID = 1.93161 au   T_jup = 3.299  [ 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 10.7   n/a MPO492758 IRAS observations used: 3 diameter diameter 19.768 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 15.55 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: [Garlitz, J. (2011) http://eoni.com/~garlitzj/Period.htm] geometric albedo albedo 0.170   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   B-V BV 0.860   0.068 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=2; phase (min.=5.11, mean=5.24, max.=5.37) deg. U-B UB 0.351   0.068 EAR-A-5-DDR-UBV-MEAN-VALUES-V1.2 #obs=1; phase=5.11 deg. Tholen spectral type spec_T S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 used 2 color indices SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 716 Berkeley (A911 OC)          Discovered 1911-Jul-30 by Palisa, J. at Vienna Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  A911 OC = 1947 CH = 1952 FA = A906 OB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-15 18:37 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin