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190907 (2001 UD87)
Classification: Main-belt Asteroid          SPK-ID: 2190907
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1371709852586858 4.1161e-08  
a 2.389654609021479 1.3434e-08 au
q 2.061863331874043 1.0343e-07 au
i .8720345482871028 3.8818e-06 deg
node 238.82668105616 0.00034115 deg
peri 203.4475448550994 0.00034195 deg
M 33.0463589857362 2.7354e-05 deg
tp 2459076.642518774896
(2020-Aug-15.14251878)
0.0001018 TDB
period 1349.277034129037
3.69
1.1378e-05
3.115e-08
d
yr
n .2668095512589683 2.2498e-09 deg/d
Q 2.717445886168914 1.5276e-08 au
  Orbit Determination Parameters
   # obs. used (total)      391  
   data-arc span      7033 days (19.26 yr)  
   first obs. used      2001-10-18  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51932  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 12:03:37  

Additional Information
 Earth MOID = 1.07744 au 
 Jupiter MOID = 2.48824 au 
 T_jup = 3.520 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO449948  

190907 (2001 UD87)          Discovered 2001-Oct-18 by Spacewatch at Kitt Peak
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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