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442765 (2012 XH77)
Classification: Main-belt Asteroid          SPK-ID: 2442765
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08016917764309096 8.5975e-08  
a 2.693652442523613 7.774e-08 au
q 2.477704541350192 2.83e-07 au
i 2.311118565438835 1.002e-05 deg
node 189.5814942401881 0.00019686 deg
peri 129.1929056026533 0.00022612 deg
M 347.3404866386265 0.00012335 deg
tp 2459057.283907644640
(2020-Jul-26.78390764)
0.00055534 TDB
period 1614.770344525517
4.42
6.9905e-05
1.914e-07
d
yr
n .2229419194007939 9.6513e-09 deg/d
Q 2.909600343697035 8.3973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      82  
   data-arc span      4221 days (11.56 yr)  
   first obs. used      2007-10-04  
   last obs. used      2019-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .71384  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-26 10:43:03  

Additional Information
 Earth MOID = 1.46536 au 
 Jupiter MOID = 2.30433 au 
 T_jup = 3.365 
[ 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 17.5   n/a MPO434644  

442765 (2012 XH77)          Discovered 2011-Jul-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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