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221516 Bergen-Enkheim (2006 PR4)
Classification: Inner Main-belt Asteroid          SPK-ID: 2221516
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149558369965888 5.1406e-08  
a 1.922955804392274 9.085e-09 au
q 1.701900810390911 9.8953e-08 au
i 17.91686139641172 6.2987e-06 deg
node 259.1698927162507 1.7307e-05 deg
peri 208.5783818614779 4.3232e-05 deg
M 4.112622946966856 3.473e-05 deg
tp 2459189.373238609955
(2020-Dec-05.87323861)
9.3977e-05 TDB
period 973.985252737627
2.67
6.9024e-06
1.89e-08
d
yr
n .3696154525832201 2.6194e-09 deg/d
Q 2.144010798393636 1.0129e-08 au
  Orbit Determination Parameters
   # obs. used (total)      342  
   data-arc span      7070 days (19.36 yr)  
   first obs. used      2001-10-25  
   last obs. used      2021-03-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .56853  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:15:50  

Additional Information
 Earth MOID = .730268 au 
 Jupiter MOID = 3.06255 au 
 T_jup = 3.855 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.23   n/a MPCxxxxx  

221516 Bergen-Enkheim           Discovered 2006 Aug. 13 by U. Suessenberger at the Bergen-Enkheim Observatory.
Bergen-Enkheim is the easternmost borough of Frankfurt am Main. Since 2005 it has hosted the discoverer's observatory, which is dedicated to confirmation of near-earth objects and research on minor planets.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20091202/MPCPages.arcLast Updated: 2010-04-12
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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