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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071042427265979 2.1725e-07  
a 2.557572741505252 3.9475e-08 AU
q 2.027888575657618 5.7763e-07 AU
i 8.586013201018202 1.055e-05 deg
node 124.3116810794378 9.3643e-05 deg
peri 260.0779429312754 9.9835e-05 deg
M 77.30043201383583 4.1198e-05 deg
tp 2456679.710725682451
(2014-Jan-22.21072568)
0.00016486 JED
period 1493.964985003541
4.09
3.4588e-05
9.47e-08
d
yr
n .240969503043036 5.5789e-09 deg/d
Q 3.087256907352886 4.765e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      153  
   data-arc span      5795 days (15.87 yr)  
   first obs. used      1997-10-31  
   last obs. used      2013-09-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .627  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-11 21:43:41  

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 16.4 mag n/a MPO264542  

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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