+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   78912 (2003 SK99) Classification: Main-belt Asteroid          SPK-ID: 2078912 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1639317601525826 5.0072e-08   a 3.194563229630291 2.4094e-08 au q 2.670872856478279 1.6577e-07 au i 16.91090342852724 8.953e-06 deg node 317.4328512792295 1.4236e-05 deg peri 131.5737383223254 3.1945e-05 deg M 255.3564888910785 2.6959e-05 deg tp 2459606.713302297779 (2022-Jan-27.21330230) 0.00015752 TDB period 2085.52624538794 5.71 2.3594e-05 6.46e-08 d yr n .1726183023570794 1.9529e-09 deg/d Q 3.718253602782304 2.8044e-08 au   Orbit Determination Parameters    # obs. used (total)      1111      data-arc span      8036 days (22.00 yr)      first obs. used      1998-11-16      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50096      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:07:11   Additional Information  Earth MOID = 1.71891 au   Jupiter MOID = 1.53074 au   T_jup = 3.108  [ hide covariance matrix ] Orbital Elements at Epoch 2457547.5 (2016-Jun-08.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1602661825699303 4.7651e-08   q 2.685991058818353 1.5602e-07 au tp 2457508.485980087236 (2016-Apr-29.98598009) 0.00016219 TDB node 317.9267376704612 1.4141e-05 deg peri 129.8125071242746 3.3146e-05 deg i 16.86587509513111 8.9621e-06 deg   Orbit Determination Parameters    # obs. used (total)      1111      data-arc span      8036 days (22.00 yr)      first obs. used      1998-11-16      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50096      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 22:07:11   Additional Information  Jupiter MOID = 1.53074 au   T_jup = 3.108  Orbit Covariance (6×6)   e q tp node peri i e 2.270644912290481E-15 -7.374046804169917E-15 5.096018624999702E-12 -7.371830391408883E-15 1.001562783622534E-12 7.366591578482248E-15 q -7.374046804169917E-15 2.434322473780641E-14 -1.568748744048859E-11 3.497938556809019E-14 -3.113794228262048E-12 -1.005377112375843E-14 tp 5.096018624999702E-12 -1.568748744048859E-11 2.630662074786173E-8 -3.144021621004877E-11 4.872491981708839E-9 3.905829398128429E-11 node -7.371830391408883E-15 3.497938556809019E-14 -3.144021621004877E-11 1.999570284919884E-10 -1.974336929350481E-10 6.867062161869199E-11 peri 1.001562783622534E-12 -3.113794228262048E-12 4.872491981708839E-9 -1.974336929350481E-10 1.098674640878565E-9 -5.93652217226069E-11 i 7.366591578482248E-15 -1.005377112375843E-14 3.905829398128429E-11 6.867062161869199E-11 -5.93652217226069E-11 8.031968604776715E-11 [ 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 13.6   n/a MPO445709   78912 (2003 SK99)          Discovered 2003-Sep-19 by NEAT at Haleakala Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2003 SK99 = 2000 GH167  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-22 07:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin