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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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2279757562722448 4.4514e-08  
a 2.429036047878025 1.2739e-08 AU
q 1.875274717850487 1.0481e-07 AU
i 1.328149830747739 4.7473e-06 deg
node 167.5095936522864 0.00019443 deg
peri 78.49489451439591 0.00019488 deg
M 88.47902078231266 1.282e-05 deg
tp 2456660.650078775440
(2014-Jan-03.15007878)
4.7646e-05 JED
period 1382.76814728604
3.79
1.0878e-05
2.978e-08
d
yr
n .2603473335038649 2.0481e-09 deg/d
Q 2.982797377905562 1.5643e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1435  
   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      .50389  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Mar-09 14:14:00  

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
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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