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312822 (2011 SO91)
Classification: Main-belt Asteroid          SPK-ID: 2312822
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2056242631125907 5.1903e-08  
a 3.08003874031139 4.5645e-08 au
q 2.446708043976628 1.6696e-07 au
i 9.329330700947168 8.7011e-06 deg
node 221.9479341056386 3.7315e-05 deg
peri 82.26011989419003 4.4588e-05 deg
M 278.3164512599233 2.4286e-05 deg
tp 2459448.486361004062
(2021-Aug-21.98636100)
0.00013788 TDB
period 1974.3888757166
5.41
4.3889e-05
1.202e-07
d
yr
n .1823349009041285 4.0532e-09 deg/d
Q 3.713369436646151 5.503e-08 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   data-arc span      7091 days (19.41 yr)  
   first obs. used      2000-11-26  
   last obs. used      2020-04-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58234  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 20:28:18  

Additional Information
 Earth MOID = 1.4537 au 
 Jupiter MOID = 1.65588 au 
 T_jup = 3.175 
[ 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 16.2   n/a MPO434005  

312822 (2011 SO91)          Discovered 2004-Apr-22 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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