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213208 (2000 UM21)
Classification: Main-belt Asteroid          SPK-ID: 2213208
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1360893349422385 6.6093e-08  
a 2.269958793209003 1.3708e-08 au
q 1.961041610694903 1.576e-07 au
i 7.574546790503773 4.8716e-06 deg
node 54.72503895958206 3.4649e-05 deg
peri 329.4127571466064 3.8872e-05 deg
M 328.1981647849216 1.641e-05 deg
tp 2459310.850694104830
(2021-Apr-06.35069411)
5.7195e-05 TDB
period 1249.181049114522
3.42
1.1316e-05
3.098e-08
d
yr
n .2881888099848977 2.6105e-09 deg/d
Q 2.578875975723102 1.5574e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      7288 days (19.95 yr)  
   first obs. used      2000-09-30  
   last obs. used      2020-09-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5911  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 23:41:48  

Additional Information
 Earth MOID = .96849 au 
 Jupiter MOID = 2.86582 au 
 T_jup = 3.590 
[ 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 16.52   n/a E2021B55  

213208 (2000 UM21)          Discovered 2000-Oct-24 by LINEAR at Socorro
Reference: 20090509/Numbers.arcLast Updated: 2009-05-11
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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