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6834 Hunfeld (1993 JH)
Classification: Main-belt Asteroid          SPK-ID: 2006834
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2329936054327817 4.6731e-08  
a 2.442803412685444 1.5396e-08 AU
q 1.873645838200359 1.1954e-07 AU
i 4.264507782288326 5.9509e-06 deg
node 46.15036544657077 6.7079e-05 deg
peri 225.9753160921338 6.8788e-05 deg
M 215.4521544221264 1.7199e-05 deg
tp 2457560.438495766807
(2016-Jun-20.93849577)
6.973e-05 JED
period 1394.540732656253
3.82
1.3184e-05
3.61e-08
d
yr
n .2581495051164907 2.4405e-09 deg/d
Q 3.011960987170529 1.8983e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1280  
   data-arc span      16483 days (45.13 yr)  
   first obs. used      1970-04-09  
   last obs. used      2015-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50253  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 15:56:21  

Additional Information
 Earth MOID = .862025 AU 
 T_jup = 3.459 
[ 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 13.9 mag n/a MPO279587  

6834 Hunfeld           Discovered 1993 May 11 by Y. Shimizu and T. Urata at Nachi-Katsuura.
Jan Hunfeld (1934-2009) was a Dutch journalist at Boom-Pers in Meppel, publisher of the Meppeler Courant. In the 1980s and 1990s he edited a weekly science page in the Courant, in which he included news of the activities of the Royal Dutch amateur-astronomy society. The name was suggested by T. Jurriens.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090607/MPCPages.arcLast Updated: 2009-06-08

Alternate Designations
 1993 JH = 1970 GP = 1978 PW4 = 1985 FW 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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