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129589 (1997 UD)
Classification: Main-belt Asteroid          SPK-ID: 2129589
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05322858661555634 4.0857e-08  
a 2.255209054544267 9.4211e-09 au
q 2.135167464048271 9.1884e-08 au
i 6.156658501243926 4.9435e-06 deg
node 202.1795266844312 3.4749e-05 deg
peri 206.5620585346511 5.5173e-05 deg
M 221.6527893117049 4.2267e-05 deg
tp 2459475.886170379186
(2021-Sep-18.38617038)
0.00014574 TDB
period 1237.02545562768
3.39
7.7515e-06
2.122e-08
d
yr
n .2910206886707372 1.8236e-09 deg/d
Q 2.375250645040263 9.9225e-09 au
  Orbit Determination Parameters
   # obs. used (total)      759  
   data-arc span      8356 days (22.88 yr)  
   first obs. used      1996-05-18  
   last obs. used      2019-04-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6322  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:59:02  

Additional Information
 Earth MOID = 1.14565 au 
 Jupiter MOID = 2.7946 au 
 T_jup = 3.614 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.1   n/a MPO432775  

129589 (1997 UD)          Discovered 1997-Oct-20 by Comba, P. G. at Prescott
Reference: 20060711/Numbers.arcLast Updated: 2006-07-17
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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