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21037 (1990 EB)
Classification: Main-belt Asteroid          SPK-ID: 2021037
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1520175973172099 6.3441e-08  
a 2.373793623592002 1.5424e-08 AU
q 2.012935220406632 1.5367e-07 AU
i 12.08741679446155 6.6749e-06 deg
node 149.9821776814629 2.6752e-05 deg
peri 54.39211289138516 3.3216e-05 deg
M 247.2191373825196 2.0026e-05 deg
tp 2457419.000302742622
(2016-Jan-31.50030274)
7.6114e-05 JED
period 1335.865903937434
3.66
1.302e-05
3.565e-08
d
yr
n .2694881267190878 2.6266e-09 deg/d
Q 2.734652026777372 1.7769e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      855  
   data-arc span      8646 days (23.67 yr)  
   first obs. used      1990-03-04  
   last obs. used      2013-11-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53539  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:53:19  

Additional Information
 Earth MOID = 1.03849 AU 
 T_jup = 3.498 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO267786  

21037 (1990 EB)          Discovered 1990-Mar-04 by Sugie, A. at Dynic (402)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 EB = 1999 RM39 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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