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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071043265817258 1.4593e-07  
a 2.557572729324648 3.1695e-08 AU
q 2.02788835153408 3.8535e-07 AU
i 8.58601371750656 1.0393e-05 deg
node 124.3116991875187 8.368e-05 deg
peri 260.0779221479887 9.0401e-05 deg
M 77.30044192746976 3.6251e-05 deg
tp 2456679.710686833504
(2014-Jan-22.21068683)
0.00014587 JED
period 1493.964974330886
4.09
2.7771e-05
7.603e-08
d
yr
n .2409695047644849 4.4793e-09 deg/d
Q 3.087257107115216 3.8259e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      165  
   data-arc span      6268 days (17.16 yr)  
   first obs. used      1997-10-31  
   last obs. used      2014-12-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6145  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 09:45:45  

Additional Information
 Earth MOID = 1.05202 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 (327)
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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