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385203 (1999 SO15)
Classification: Mars-crossing Asteroid          SPK-ID: 2385203
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2965302081522798 1.2725e-07  
a 2.23129850503865 4.3945e-09 au
q 1.569651094889668 2.8391e-07 au
i 8.548247761253853 8.6267e-06 deg
node 343.5515374117546 3.4777e-05 deg
peri 3.541451653355614 3.6804e-05 deg
M 143.1306748137123 8.9436e-06 deg
tp 2458716.477938949827
(2019-Aug-20.97793895)
2.9997e-05 TDB
period 1217.404600410428
3.33
3.5965e-06
9.847e-09
d
yr
n .2957110560274142 8.7359e-10 deg/d
Q 2.892945915187632 5.6976e-09 au
  Orbit Determination Parameters
   # obs. used (total)      376  
   data-arc span      7825 days (21.42 yr)  
   first obs. used      1999-09-07  
   last obs. used      2021-02-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .40872  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 11:04:31  

Additional Information
 Earth MOID = .561069 au 
 Jupiter MOID = 2.53422 au 
 T_jup = 3.569 
[ 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 17.61   n/a MPCxxxxx  

385203 (1999 SO15)          Discovered 1999-Sep-30 by CSS at Catalina
Reference: Last Updated: 2014-02-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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