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227770 Wischnewski (2006 US289)
Classification: Main-belt Asteroid          SPK-ID: 2227770
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1436583518532535 5.5317e-08  
a 2.198515080553464 1.6439e-08 au
q 1.882680027556631 1.1976e-07 au
i 4.256403809855821 5.174e-06 deg
node 120.5731543409426 8.7651e-05 deg
peri 249.2758958300997 9.0892e-05 deg
M 148.8580489997819 2.1365e-05 deg
tp 2458708.163059853437
(2019-Aug-12.66305985)
7.2525e-05 TDB
period 1190.673259818301
3.26
1.3354e-05
3.656e-08
d
yr
n .3023499495192632 3.3911e-09 deg/d
Q 2.514350133550298 1.88e-08 au
  Orbit Determination Parameters
   # obs. used (total)      185  
   data-arc span      7339 days (20.09 yr)  
   first obs. used      2001-02-01  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55333  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 00:41:07  

Additional Information
 Earth MOID = .885311 au 
 Jupiter MOID = 2.95241 au 
 T_jup = 3.650 
[ 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 17.8   n/a MPO527645  

227770 Wischnewski           Discovered 2006 Oct. 30 by W. Ries at Altschwendt.
Erik Wischnewski (b. 1952) has been a lecturer at adult education centers and planetaria since 1972 and is an author of several astronomical textbooks. His work contributes to the German-language astronomical education.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120703/MPCPages.arcLast Updated: 2012-07-09
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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