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7993 (1982 UD2)
Classification: Main-belt Asteroid          SPK-ID: 2007993
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1338021764277785 9.1175e-08  
a 2.925077172515029 2.1337e-08 AU
q 2.533695480613306 2.6615e-07 AU
i 2.594304669140078 6.9759e-06 deg
node 42.61784644374549 0.00011233 deg
peri 329.7789434503348 0.00011424 deg
M 131.0579167214152 2.0822e-05 deg
tp 2456135.280181867108
(2012-Jul-26.78018187)
0.00010449 JED
period 1827.277134557944
5.00
1.9993e-05
5.474e-08
d
yr
n .1970144501846959 2.1557e-09 deg/d
Q 3.316458864416753 2.4192e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1391  
   data-arc span      11462 days (31.38 yr)  
   first obs. used      1982-10-16  
   last obs. used      2014-03-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54651  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Mar-22 10:51:51  

Additional Information
 Earth MOID = 1.53303 AU 
 T_jup = 3.263 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.4 mag n/a MPO256923  

7993 (1982 UD2)          Discovered 1982-Oct-16 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 UD2 = 1987 UF 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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