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91257 (1999 CG82)
Classification: Main-belt Asteroid          SPK-ID: 2091257
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09629151381020347 3.8013e-08  
a 2.236433223334525 9.4812e-09 au
q 2.02108368272421 8.9747e-08 au
i 3.226506975886127 3.4628e-06 deg
node 106.0004649709432 6.543e-05 deg
peri 237.9319259881364 6.7892e-05 deg
M 274.0786548429181 1.8811e-05 deg
tp 2459292.061983871692
(2021-Mar-18.56198387)
6.4258e-05 TDB
period 1221.609298619762
3.34
7.7683e-06
2.127e-08
d
yr
n .2946932381791354 1.874e-09 deg/d
Q 2.451782763944839 1.0394e-08 au
  Orbit Determination Parameters
   # obs. used (total)      850  
   data-arc span      7882 days (21.58 yr)  
   first obs. used      1998-11-18  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53156  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:38:33  

Additional Information
 Earth MOID = 1.01516 au 
 Jupiter MOID = 2.85599 au 
 T_jup = 3.630 
[ 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 16.1   n/a MPO426568  

91257 (1999 CG82)          Discovered 1999-Feb-13 by Mazzoni, E. at Monte Agliale
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1999 CG82 = 1998 WR35 = 2001 XM61 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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