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217642 (1997 UD22)
Classification: Main-belt Asteroid          SPK-ID: 2217642
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2083798101990907 9.0299e-08  
a 2.555979055407184 2.732e-08 au
q 2.023364624968583 2.3399e-07 au
i 8.582335952903255 1.0299e-05 deg
node 124.2857411308917 5.7307e-05 deg
peri 260.0757980453296 6.5933e-05 deg
M 173.6542004284181 3.4695e-05 deg
tp 2456680.525433678855
(2014-Jan-23.02543368)
0.00013527 JED
period 1492.568813401396
4.09
2.393e-05
6.552e-08
d
yr
n .241194909586514 3.867e-09 deg/d
Q 3.088593485845784 3.3012e-08 au
  Orbit Determination Parameters
   # obs. used (total)      254  
   data-arc span      6344 days (17.37 yr)  
   first obs. used      1997-10-31  
   last obs. used      2015-03-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .552  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 23:30:14  

Additional Information
 Earth MOID = 1.04609 au 
 Jupiter MOID = 2.41982 au 
 T_jup = 3.391 
[ 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 16.5 mag n/a MPO321068  

217642 (1997 UD22)          Discovered 1997-Oct-31 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20090904/Numbers.arcLast Updated: 2009-09-08

Alternate Designations
 1997 UD22 = 2001 TS202 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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