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70099 (1999 JG121)
Classification: Main-belt Asteroid          SPK-ID: 2070099
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1368218200023371 2.9289e-08  
a 2.28555345672279 8.6234e-09 au
q 1.972839873061345 6.5354e-08 au
i 5.139245246474324 3.454e-06 deg
node 187.3089816275826 3.8449e-05 deg
peri 82.08356767201228 4.1961e-05 deg
M 12.16625424332904 1.4818e-05 deg
tp 2458957.847952016071
(2020-Apr-18.34795202)
5.2021e-05 TDB
period 1262.075982230428
3.46
7.1427e-06
1.956e-08
d
yr
n .2852443157691528 1.6143e-09 deg/d
Q 2.598267040384235 9.8033e-09 au
  Orbit Determination Parameters
   # obs. used (total)      813  
   data-arc span      7756 days (21.23 yr)  
   first obs. used      1999-05-13  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55752  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 06:25:43  

Additional Information
 Earth MOID = .964964 au 
 Jupiter MOID = 2.48825 au 
 T_jup = 3.584 
[ 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 16.1   n/a MPO468639  

70099 (1999 JG121)          Discovered 1999-May-13 by LINEAR at Socorro
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 JG121 = 2002 CM145 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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