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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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2071043482410978 8.9964e-08  
a 2.557572726281319 2.6954e-08 AU
q 2.027888293725619 2.3281e-07 AU
i 8.586014633885446 1.0301e-05 deg
node 124.3117015027369 5.7218e-05 deg
peri 260.077919742836 6.5971e-05 deg
M 77.30044399139584 3.3788e-05 deg
tp 2456679.710678840986
(2014-Jan-22.21067884)
0.00013652 JED
period 1493.964971664318
4.09
2.3617e-05
6.466e-08
d
yr
n .2409695051945897 3.8093e-09 deg/d
Q 3.08725715883702 3.2536e-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 = 1.05202 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
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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