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103181 (1999 XR237)
Classification: Main-belt Asteroid          SPK-ID: 2103181
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1683909964740687 4.303e-08  
a 2.38981080575453 1.1729e-08 au
q 1.987388182789027 1.0716e-07 au
i 7.287080799183323 4.4864e-06 deg
node 57.13715107988322 3.1315e-05 deg
peri 312.6356901788668 3.3347e-05 deg
M 243.8980589405124 1.3998e-05 deg
tp 2459435.691783731465
(2021-Aug-09.19178373)
5.4438e-05 TDB
period 1349.409326955649
3.69
9.9343e-06
2.72e-08
d
yr
n .2667833938958925 1.964e-09 deg/d
Q 2.792233428720031 1.3704e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      7506 days (20.55 yr)  
   first obs. used      1999-12-05  
   last obs. used      2020-06-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5408  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:50:16  

Additional Information
 Earth MOID = .996127 au 
 Jupiter MOID = 2.68396 au 
 T_jup = 3.503 
[ 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 16.34   n/a E2021B55  

103181 (1999 XR237)          Discovered 1999-Dec-05 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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