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8479 (1987 HD2)
Classification: Main-belt Asteroid          SPK-ID: 2008479
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279376593816182 5.4124e-08  
a 2.429258103905747 1.4548e-08 AU
q 1.875538697667643 1.3148e-07 AU
i 1.327980999118099 5.0822e-06 deg
node 167.5107458841511 0.00024443 deg
peri 78.52095020302907 0.00024487 deg
M 36.39260046544476 1.3728e-05 deg
tp 2456660.696029427157
(2014-Jan-03.19602943)
5.1952e-05 JED
period 1382.957765109752
3.79
1.2423e-05
3.401e-08
d
yr
n .260311637189752 2.3384e-09 deg/d
Q 2.982977510143851 1.7864e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1250  
   data-arc span      28903 days (79.13 yr)  
   first obs. used      1934-04-15  
   last obs. used      2013-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55804  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 15:58:18  

Additional Information
 Earth MOID = .862664 AU 
 T_jup = 3.472 
[ 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 13.3 mag n/a MPO263425  

8479 (1987 HD2)          Discovered 1987-Apr-29 by Mrkos, A. at Klet (046)
Reference: 19980313/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1987 HD2 = 1934 GP = 1969 TC6 = 1983 EJ3 = 1998 CF5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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