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452240 (2015 SD20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2452240
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 .2436514992854708 3.1673e-07  
a 3.223370575572198 8.9515e-08 au
q 2.437991502081361 9.9774e-07 au
i 26.53385557002279 8.2019e-06 deg
node 276.961900138502 2.9349e-05 deg
peri 82.9608011942001 8.7964e-05 deg
M 296.2323226803526 4.2419e-05 deg
tp 2459374.922449659469
(2021-Jun-09.42244966)
0.00024788 TDB
period 2113.799459900953
5.79
8.8052e-05
2.411e-07
d
yr
n .1703094389175729 7.0944e-09 deg/d
Q 4.008749649063034 1.1133e-07 au
  Orbit Determination Parameters
   # obs. used (total)      180  
   data-arc span      4944 days (13.54 yr)  
   first obs. used      2003-06-26  
   last obs. used      2017-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5115  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 10:51:52  

Additional Information
 Earth MOID = 1.59257 au 
 Jupiter MOID = 1.95273 au 
 T_jup = 2.980 
[ 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 15.0   n/a E2015U62  

452240 (2015 SD20)          Discovered 2003-Jun-26 by LINEAR at Socorro
Reference: Last Updated: 2015-11-30

[ show close-approach data ]
Alternate Designations
 2015 SD20 = 2003 MF11 = 2009 OX9 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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