+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70418 Kholopov (1999 SD12) Classification: Main-belt Asteroid          SPK-ID: 2070418 [ 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 27 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1149863903411805 4.5601e-08   a 2.436427521040539 9.0039e-09 au q 2.156271515068177 1.1245e-07 au i 3.846876278908641 3.5173e-06 deg node 60.42904787575874 6.547e-05 deg peri 104.9548793636694 6.7335e-05 deg M 7.401917256976606 1.5328e-05 deg tp 2458971.939198106822 (2020-May-02.43919811) 5.915e-05 TDB period 1389.084520210333 3.80 7.7001e-06 2.108e-08 d yr n .2591634956420717 1.4366e-09 deg/d Q 2.716583527012902 1.0039e-08 au   Orbit Determination Parameters    # obs. used (total)      1169      data-arc span      10099 days (27.65 yr)      first obs. used      1992-09-26      last obs. used      2020-05-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .511      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:00:45   Additional Information  Earth MOID = 1.16714 au   Jupiter MOID = 2.25796 au   T_jup = 3.492  [ 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 15.3   n/a MPO459317   diameter diameter 5.178 km 0.117 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.060   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70418 Kholopov           Discovered 1999 Sept. 17 by M. M. M. Santangelo at Monte Agliale. P. N. Kholopov (1922-1988) was the astronomer editor-in-chief of the first three volumes of the fourth edition of the General Catalogue of Variable Stars. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20100330/MPCPages.arc Last Updated: 2010-04-05 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 22:14 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin