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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279376988115862 4.8843e-08  
a 2.429258081650416 1.4187e-08 AU
q 1.875538584699572 1.1776e-07 AU
i 1.32798330342172 4.7958e-06 deg
node 167.5107968249878 0.00022727 deg
peri 78.52089240102063 0.00022769 deg
M 36.3926143613538 1.3072e-05 deg
tp 2456660.695977966531
(2014-Jan-03.19597797)
4.9449e-05 JED
period 1382.957746105071
3.79
1.2115e-05
3.317e-08
d
yr
n .2603116407669688 2.2804e-09 deg/d
Q 2.98297757860126 1.7421e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1279  
   data-arc span      29290 days (80.19 yr)  
   first obs. used      1934-04-15  
   last obs. used      2014-06-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51249  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:19:34  

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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