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

[ show orbit diagram ]
Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144281576808106 8.766e-08  
a 2.198307408415955 3.9068e-08 au
q 1.88113214922076 2.0958e-07 au
i 4.255396661066493 1.097e-05 deg
node 120.6322616228672 0.00011108 deg
peri 248.9368212296179 0.00012194 deg
M 25.43477747972006 6.0348e-05 deg
tp 2457516.388281957223
(2016-May-07.88828196)
0.00019803 JED
period 1190.504556980814
3.26
3.1736e-05
8.689e-08
d
yr
n .3023927946256503 8.0611e-09 deg/d
Q 2.51548266761115 4.4705e-08 au
  Orbit Determination Parameters
   # obs. used (total)      111  
   data-arc span      5271 days (14.43 yr)  
   first obs. used      2001-02-01  
   last obs. used      2015-07-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57396  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 19:16:34  

Additional Information
 Earth MOID = .884025 au 
 Jupiter MOID = 2.9413 au 
 T_jup = 3.650 
[ 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 17.8 mag n/a MPO338631  

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 | Physical Parameters | Discovery Circumstances ]
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