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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1442057630985272 1.0521e-07  
a 2.198259728777479 4.0476e-08 AU
q 1.881258007100362 2.4059e-07 AU
i 4.255555142595179 1.4108e-05 deg
node 120.6343469062336 0.00012893 deg
peri 249.0908216959987 0.00013987 deg
M 143.3404888762898 5.7679e-05 deg
tp 2456326.494573853785
(2013-Feb-02.99457385)
0.00018427 JED
period 1190.465825464779
3.26
3.288e-05
9.002e-08
d
yr
n .3024026329016625 8.3521e-09 deg/d
Q 2.515261450454597 4.6313e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      100  
   data-arc span      4773 days (13.07 yr)  
   first obs. used      2001-02-01  
   last obs. used      2014-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58153  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 23:31:02  

Additional Information
 Earth MOID = .88399 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 17.7 mag n/a MPO281221  

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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