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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1342076590957513 8.7364e-08  
a 2.923770501716726 2.121e-08 AU
q 2.531378106948114 2.543e-07 AU
i 2.594772933720221 6.6963e-06 deg
node 42.60239186473703 0.00010857 deg
peri 329.666755714414 0.00011031 deg
M 170.6134594386563 1.9894e-05 deg
tp 2456135.085564146346
(2012-Jul-26.58556415)
9.9139e-05 JED
period 1826.052867882515
5.00
1.987e-05
5.44e-08
d
yr
n .1971465373932217 2.1453e-09 deg/d
Q 3.316162896485338 2.4057e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1420  
   data-arc span      11571 days (31.68 yr)  
   first obs. used      1982-10-16  
   last obs. used      2014-06-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52342  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:18:31  

Additional Information
 Earth MOID = 1.53204 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 12.4 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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