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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279757561665984 4.4545e-08  
a 2.429036047826933 1.2751e-08 AU
q 1.875274718067662 1.0491e-07 AU
i 1.328149865800756 4.7481e-06 deg
node 167.5095973975687 0.00019487 deg
peri 78.49489077171043 0.00019533 deg
M 88.47902076996604 1.2824e-05 deg
tp 2456660.650078833586
(2014-Jan-03.15007883)
4.7662e-05 JED
period 1382.768147242413
3.79
1.0888e-05
2.981e-08
d
yr
n .2603473335120789 2.05e-09 deg/d
Q 2.982797377586203 1.5658e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1429  
   data-arc span      29472 days (80.69 yr)  
   first obs. used      1934-04-15  
   last obs. used      2014-12-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50506  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 13:23:20  

Additional Information
 Earth MOID = .864002 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 13.4 mag n/a MPO319192  

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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