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102980 (1999 XA78)
Classification: Main-belt Asteroid          SPK-ID: 2102980
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903433490120298 3.5118e-08  
a 2.373951042602652 9.7707e-09 au
q 1.922085250763063 8.5767e-08 au
i 2.923550325967466 3.9944e-06 deg
node 250.2249711613051 8.0102e-05 deg
peri 121.3681967215798 8.0907e-05 deg
M 313.7090898125214 1.3031e-05 deg
tp 2459372.290555398277
(2021-Jun-06.79055540)
4.9019e-05 TDB
period 1335.998788809905
3.66
8.2481e-06
2.258e-08
d
yr
n .2694613221323984 1.6636e-09 deg/d
Q 2.825816834442241 1.1631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      670  
   data-arc span      10097 days (27.64 yr)  
   first obs. used      1992-12-24  
   last obs. used      2020-08-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .4914  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 15:44:31  

Additional Information
 Earth MOID = .922735 au 
 Jupiter MOID = 2.65107 au 
 T_jup = 3.516 
[ 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 16.32   n/a E2021B55  

102980 (1999 XA78)          Discovered 1999-Dec-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1999 XA78 = 2004 BX131 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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