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78912 (2003 SK99)
Classification: Main-belt Asteroid          SPK-ID: 2078912
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1641786806336377 5.0189e-08  
a 3.192940252853917 2.3837e-08 au
q 2.668727534798327 1.6608e-07 au
i 16.91335087735155 8.9151e-06 deg
node 317.436131008753 1.4235e-05 deg
peri 131.7483222090568 3.1858e-05 deg
M 289.7345848096688 2.6926e-05 deg
tp 2459607.246412241124
(2022-Jan-27.74641224)
0.0001568 TDB
period 2083.937140486062
5.71
2.3337e-05
6.389e-08
d
yr
n .1727499323305082 1.9345e-09 deg/d
Q 3.717152970909507 2.775e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:17:07  

Additional Information
 Earth MOID = 1.71641 au 
 Jupiter MOID = 1.53059 au 
 T_jup = 3.108 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457561.5 (2016-Jun-22.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602651621356598 4.7575e-08  
q 2.68599434729249 1.5585e-07 au
tp 2457508.496696617770
(2016-Apr-29.99669662)
0.00016202 TDB
node 317.9267422362748 1.414e-05 deg
peri 129.8150992082757 3.3123e-05 deg
i 16.86587353136167 8.9221e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1139  
   data-arc span      8100 days (22.18 yr)  
   first obs. used      1998-11-16  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49608  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:17:07  

Additional Information
 Jupiter MOID = 1.53059 au 
 T_jup = 3.108 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.263398899819099E-15 -7.354083953142473E-15 5.075918212803925E-12 -7.318577556076316E-15 9.982726341248687E-13 7.513775554042156E-15
q -7.354083953142473E-15 2.428817722346291E-14 -1.563306975439839E-11 3.486523243671753E-14 -3.104919573206442E-12 -1.054306346369264E-14
tp 5.075918212803925E-12 -1.563306975439839E-11 2.624976248405687E-8 -3.135711886776747E-11 4.863097902219457E-9 3.982632154139218E-11
node -7.318577556076316E-15 3.486523243671753E-14 -3.135711886776747E-11 1.999384487970656E-10 -1.974033951988587E-10 6.865367050307462E-11
peri 9.982726341248687E-13 -3.104919573206442E-12 4.863097902219457E-9 -1.974033951988587E-10 1.097102386529345E-9 -5.920241627997959E-11
i 7.513775554042156E-15 -1.054306346369264E-14 3.982632154139218E-11 6.865367050307462E-11 -5.920241627997959E-11 7.960392452503771E-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 13.68   n/a E2021B10  

78912 (2003 SK99)          Discovered 2003-Sep-19 by NEAT at Haleakala
Reference: 20040415/Numbers.arcLast 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 ]
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