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213853 (2003 SG81)
Classification: Main-belt Asteroid          SPK-ID: 2213853
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1375898196970804 4.9587e-08  
a 2.300899217772656 1.0262e-08 au
q 1.984318909258163 1.1848e-07 au
i 4.926611723412756 5.2365e-06 deg
node 32.08758937444591 5.2883e-05 deg
peri 312.4468675088821 5.5991e-05 deg
M .3772493141129232 1.7878e-05 deg
tp 2459199.164109751655
(2020-Dec-15.66410975)
6.3307e-05 TDB
period 1274.808121347904
3.49
8.5283e-06
2.335e-08
d
yr
n .2823954397304577 1.8892e-09 deg/d
Q 2.617479526287149 1.1674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      485  
   data-arc span      8690 days (23.79 yr)  
   first obs. used      1996-10-08  
   last obs. used      2020-07-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56186  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:44:23  

Additional Information
 Earth MOID = .97937 au 
 Jupiter MOID = 2.77689 au 
 T_jup = 3.574 
[ 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 16.7   n/a MPO433398  

213853 (2003 SG81)          Discovered 2003-Sep-19 by Spacewatch at Kitt Peak
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11

[ show close-approach data ]
Alternate Designations
 2003 SG81 = 1996 TU3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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