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442601 (2012 DC39)
Classification: Mars-crossing Asteroid          SPK-ID: 2442601
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1279541580080131 5.2016e-08  
a 1.889374120166633 1.0983e-08 au
q 1.647620845458581 9.8309e-08 au
i 23.50401488188897 8.3401e-06 deg
node 159.3610459313086 1.3504e-05 deg
peri 283.1221042117143 3.727e-05 deg
M 136.6166948031316 3.9812e-05 deg
tp 2458640.521433099938
(2019-Jun-06.02143310)
0.0001034 TDB
period 948.5830723014363
2.60
8.2714e-06
2.265e-08
d
yr
n .3795134137557125 3.3092e-09 deg/d
Q 2.131127394874685 1.2389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      114  
   data-arc span      7175 days (19.64 yr)  
   first obs. used      2000-09-05  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60221  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 03:53:58  

Additional Information
 Earth MOID = .768447 au 
 Jupiter MOID = 3.06798 au 
 T_jup = 3.850 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 18.0   n/a MPO408999  

442601 (2012 DC39)          Discovered 2012-Feb-22 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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