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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1344256813334571 8.0684e-08  
a 2.923980298789744 1.9428e-08 au
q 2.530922254919327 2.3757e-07 au
i 2.594665403849538 6.613e-06 deg
node 42.59830647106586 9.8539e-05 deg
peri 329.5145481547596 0.00010025 deg
M 289.1024850337189 2.0107e-05 deg
tp 2457960.157070255236
(2017-Jul-25.65707026)
0.00010337 JED
period 1826.249415842911
5.00
1.8201e-05
4.983e-08
d
yr
n .1971253197273939 1.9646e-09 deg/d
Q 3.317038342660161 2.2039e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1549  
   data-arc span      11935 days (32.68 yr)  
   first obs. used      1982-10-16  
   last obs. used      2015-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52359  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-05 13:35:28  

Additional Information
 Earth MOID = 1.53035 au 
 Jupiter MOID = 2.13913 au 
 T_jup = 3.264 
[ 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 12.5 mag n/a MPO337323  

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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