+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   734 Benda (A912 TF) Classification: Main-belt Asteroid          SPK-ID: 2000734 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .09998698886340572 3.1834e-08   a 3.148068301589894 1.3862e-08 au q 2.833302431377585 1.0079e-07 au i 5.804815964582295 4.0627e-06 deg node 3.13485641961921 3.6856e-05 deg peri 66.2442198262418 4.2609e-05 deg M 51.85178838679098 2.076e-05 deg tp 2458706.649871037733 (2019-Aug-11.14987104) 0.00011755 TDB period 2040.161963890229 5.59 1.3476e-05 3.69e-08 d yr n .1764565786304258 1.1655e-09 deg/d Q 3.462834171802204 1.5249e-08 au   Orbit Determination Parameters    # obs. used (total)      3073      data-arc span      38982 days (106.73 yr)      first obs. used      1914-02-24      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .42056      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 01:55:44   Additional Information  Earth MOID = 1.85372 au   Jupiter MOID = 1.82281 au   T_jup = 3.193  [ 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 9.9   n/a MPO337248   diameter diameter 67.318 km 0.267 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   rotation period rot_per 7.110 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2004) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Buchheim, R.K. (2009) Minor Planet Bull. 36, 84-85.] [Stephens, R.D. (2014) Minor Planet Bull. 41, 92-95.] [Franco, L.; Marchini, A.; Baj, G.; Scarfi, G.; et al. (2019) Minor Planet Bull. 46, 85-86.] geometric albedo albedo 0.051   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)   734 Benda (A912 TF)          Discovered 1912-Oct-11 by Palisa, J. at Vienna 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-27 15:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin