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66976 (1999 XN78)
Classification: Main-belt Asteroid          SPK-ID: 2066976
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09096662575093574 4.3864e-08  
a 2.894030039230204 1.8884e-08 au
q 2.630769891739584 1.267e-07 au
i .8149217141361058 4.8154e-06 deg
node 241.6266293262699 0.00047146 deg
peri 179.8124657956384 0.00047292 deg
M 105.9710246001747 3.6114e-05 deg
tp 2458671.156467190271
(2019-Jul-06.65646719)
0.00018015 TDB
period 1798.262048805256
4.92
1.7601e-05
4.819e-08
d
yr
n .200193292317535 1.9594e-09 deg/d
Q 3.157290186720824 2.0602e-08 au
  Orbit Determination Parameters
   # obs. used (total)      661  
   data-arc span      9218 days (25.24 yr)  
   first obs. used      1995-12-27  
   last obs. used      2021-03-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54162  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:02:54  

Additional Information
 Earth MOID = 1.64288 au 
 Jupiter MOID = 2.10662 au 
 T_jup = 3.283 
[ 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 15.35   n/a E2021B10  

66976 (1999 XN78)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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