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487883 (2015 TH139)
Classification: Main-belt Asteroid          SPK-ID: 2487883
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1979371717177272 6.1576e-08  
a 2.667884071371814 4.4672e-08 au
q 2.139810643813702 1.6367e-07 au
i 14.30430048560911 6.6689e-06 deg
node 98.15427737935218 3.2704e-05 deg
peri 68.4894547724642 3.7708e-05 deg
M 280.1425478854572 2.3811e-05 deg
tp 2459353.570804349904
(2021-May-19.07080435)
0.00011039 TDB
period 1591.654707235748
4.36
3.9977e-05
1.095e-07
d
yr
n .2261797099354657 5.6808e-09 deg/d
Q 3.195957498929926 5.3514e-08 au
  Orbit Determination Parameters
   # obs. used (total)      146  
   data-arc span      5672 days (15.53 yr)  
   first obs. used      2004-04-20  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .65143  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 18:48:46  

Additional Information
 Earth MOID = 1.19479 au 
 Jupiter MOID = 1.96952 au 
 T_jup = 3.311 
[ 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 16.9   n/a MPO456352  

487883 (2015 TH139)          Discovered 2004-Apr-20 by LINEAR at Socorro
Reference: Last Updated: 2017-03-14

[ show close-approach data ]
Alternate Designations
 2015 TH139 = 2004 HA20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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