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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2283054557734293 4.266e-08  
a 2.428332848906666 1.1972e-08 au
q 1.873931211067439 9.9952e-08 au
i 1.328326736598278 3.9581e-06 deg
node 167.5203744023854 0.00018046 deg
peri 78.42296583733284 0.00018081 deg
M 244.8076266443364 1.3066e-05 deg
tp 2458042.764392086458
(2017-Oct-16.26439209)
5.2631e-05 JED
period 1382.167729625105
3.78
1.0221e-05
2.798e-08
d
yr
n .260460429138832 1.9261e-09 deg/d
Q 2.982734486745892 1.4705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1723  
   data-arc span      29924 days (81.93 yr)  
   first obs. used      1934-04-15  
   last obs. used      2016-03-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51942  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Mar-24 16:00:20  

Additional Information
 Earth MOID = .860904 au 
 Jupiter MOID = 2.04303 au 
 T_jup = 3.473 
[ 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
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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