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212337 (2005 SD273)
Classification: Outer Main-belt Asteroid          SPK-ID: 2212337
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1568032527650098 6.161e-08  
a 3.98257646343226 5.8845e-08 au
q 3.358095519580713 2.4165e-07 au
i .8611405301979423 6.3908e-06 deg
node 39.11533244943524 0.00047827 deg
peri 253.5669004113848 0.00047903 deg
M 56.91784761424849 2.5082e-05 deg
tp 2458741.523363642186
(2019-Sep-15.02336364)
0.00020275 TDB
period 2902.983791808915
7.95
6.434e-05
1.762e-07
d
yr
n .1240103375760413 2.7485e-09 deg/d
Q 4.607057407283808 6.8072e-08 au
  Orbit Determination Parameters
   # obs. used (total)      265  
   data-arc span      6809 days (18.64 yr)  
   first obs. used      2002-03-16  
   last obs. used      2020-11-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55161  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:38:15  

Additional Information
 Earth MOID = 2.34013 au 
 Jupiter MOID = .598152 au 
 T_jup = 3.034 
[ 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 15.01   n/a E2021-EA9  

212337 (2005 SD273)          Discovered 2005-Sep-30 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

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