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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443121072384169 8.7652e-08  
a 2.198361875035587 3.8921e-08 au
q 1.881111640376604 2.0948e-07 au
i 4.255495013930902 1.0971e-05 deg
node 120.6344559187486 0.00011108 deg
peri 248.9654153160486 0.00012193 deg
M 324.9347492963024 5.9255e-05 deg
tp 2457516.463589518014
(2016-May-07.96358952)
0.00019804 JED
period 1190.548802267168
3.26
3.1617e-05
8.656e-08
d
yr
n .30238155656824 8.0304e-09 deg/d
Q 2.515612109694569 4.4538e-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 = .883361 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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