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212937 (2008 UD291)
Classification: Main-belt Asteroid          SPK-ID: 2212937
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05042231977683902 8.1829e-08  
a 3.189532383746983 4.6803e-08 au
q 3.028708761955109 2.7708e-07 au
i 5.247876939273447 7.8891e-06 deg
node 319.6376791125779 7.3505e-05 deg
peri 232.5953726380361 0.00010403 deg
M 309.1470613774452 7.9155e-05 deg
tp 2459294.401974967019
(2021-Mar-20.90197497)
0.00045994 TDB
period 2080.601708653262
5.70
4.5796e-05
1.254e-07
d
yr
n .1730268693439754 3.8084e-09 deg/d
Q 3.350356005538857 4.9163e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      7097 days (19.43 yr)  
   first obs. used      2000-08-28  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58546  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 02:52:19  

Additional Information
 Earth MOID = 2.03245 au 
 Jupiter MOID = 1.64713 au 
 T_jup = 3.189 
[ 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 15.4   n/a MPO470284  

212937 (2008 UD291)          Discovered 2008-Oct-28 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2008 UD291 = 2006 RZ60 = 2007 VU289 = 2007 XY19 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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