+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100220 (1994 PT10) Classification: Main-belt Asteroid          SPK-ID: 2100220 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0563713714616651 5.411e-08   a 3.051372049659788 2.7491e-08 au q 2.879362022380673 1.765e-07 au i 8.698169288771803 6.2176e-06 deg node 337.889619254512 2.7177e-05 deg peri 333.1256930849763 5.2821e-05 deg M 322.2565945071408 4.6734e-05 deg tp 2459204.617271672606 (2020-Dec-21.11727167) 0.0002538 TDB period 1946.888915893943 5.33 2.631e-05 7.203e-08 d yr n .1849103957914829 2.4989e-09 deg/d Q 3.223382076938902 2.904e-08 au   Orbit Determination Parameters    # obs. used (total)      615      data-arc span      9033 days (24.73 yr)      first obs. used      1994-08-10      last obs. used      2019-05-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5463      source      ORB      producer      Otto Matic      solution date      2019-May-30 06:34:15   Additional Information  Earth MOID = 1.86871 au   Jupiter MOID = 2.02971 au   T_jup = 3.217  [ 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 14.8   n/a MPO436466   diameter diameter 3.982 km 0.965 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.177   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100220 (1994 PT10)          Discovered 1994-Aug-10 by Elst, E. W. at La Silla Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 1912-Mar-02 22:53 00:05 Psych 0.0443806300048848 0.0443553186316164 0.0444059435284839 3.74734881296102 3.74734874021058 2419464.453708317 5.12399514576142 1351.63342310764 60.2575676898011 21.1395302861759 39956.2690997619 T 14 CATAB v2.0e-lin.ifort 2019-May-30 06:34:20 2019-May-30 06:34 2072-Jan-02 06:39 00:02 Psych 0.028059280470866 0.0280447933000228 0.0280737714936628 3.96973603993727 3.96973593131596 2477843.777060284 2.16312054111781 889.575043648452 60.4594237284467 35.852744098186 40804.9404144066 T 14 CATAB v2.0e-lin.ifort 2019-May-30 06:34:20 2019-May-30 06:34 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-13 09:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin