+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   (1999 SG10) Classification: Apollo [NEO, PHA]          SPK-ID: 3022970 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 36 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .6134979984949699 9.2902e-08   a 1.453622600713728 2.459e-09 au q .5618280446088031 1.3453e-07 au i 23.55852132838751 5.2934e-05 deg node 13.4286937923431 1.3959e-05 deg peri 103.3778105568051 1.8208e-05 deg M 248.0731722344398 9.8303e-06 deg tp 2459199.524994824193 (2020-Dec-16.02499482) 1.7738e-05 TDB period 640.1414170942478 1.75 1.6244e-06 4.447e-09 d yr n .5623757350901064 1.427e-09 deg/d Q 2.345417156818653 3.9676e-09 au   Orbit Determination Parameters    # obs. used (total)      120      data-arc span      7691 days (21.06 yr)      first obs. used      1999-09-30      last obs. used      2020-10-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55093      source      ORB      producer      Otto Matic      solution date      2020-Oct-21 07:37:25   Additional Information  Earth MOID = .0288331 au   Jupiter MOID = 3.0521 au   T_jup = 4.345  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 20.5   n/a E2013T04   [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ] 2021-Jan-21 18:49 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin