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442781 (2012 XL135)
Classification: Main-belt Asteroid          SPK-ID: 2442781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1616525402049029 6.2019e-08  
a 2.557123966415892 3.0391e-08 au
q 2.143758381625926 1.6772e-07 au
i 3.901068737073291 6.1144e-06 deg
node 138.3166198993633 0.00013509 deg
peri 217.0134763454732 0.00013917 deg
M 356.7700976625738 4.0084e-05 deg
tp 2459013.900252777486
(2020-Jun-13.40025278)
0.00016641 TDB
period 1493.57178512682
4.09
2.6626e-05
7.29e-08
d
yr
n .241032941024279 4.297e-09 deg/d
Q 2.970489551205858 3.5304e-08 au
  Orbit Determination Parameters
   # obs. used (total)      131  
   data-arc span      7271 days (19.91 yr)  
   first obs. used      1999-08-07  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63535  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:58  

Additional Information
 Earth MOID = 1.14042 au 
 Jupiter MOID = 2.46662 au 
 T_jup = 3.415 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.9   n/a MPO437722  

442781 (2012 XL135)          Discovered 1999-Aug-07 by Spacewatch at Kitt Peak
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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