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123937 (2001 EX16)
Classification: Inner Main-belt Asteroid          SPK-ID: 2123937
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 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0606873146696832 6.4449e-08  
a 1.865754947845956 6.87e-09 au
q 1.75252729022951 1.2257e-07 au
i 23.25266886057696 7.4635e-06 deg
node 4.667007459665776 8.8354e-06 deg
peri 16.31061623000449 5.0094e-05 deg
M 353.9590285941563 4.7338e-05 deg
tp 2459016.120128747068
(2020-Jun-15.62012875)
0.00012242 TDB
period 930.8513434619259
2.55
5.1413e-06
1.408e-08
d
yr
n .3867427409634768 2.1361e-09 deg/d
Q 1.978982605462402 7.2869e-09 au
  Orbit Determination Parameters
   # obs. used (total)      943  
   data-arc span      6676 days (18.28 yr)  
   first obs. used      2001-01-26  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47353  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 07:01:47  

Additional Information
 Earth MOID = .754844 au 
 Jupiter MOID = 3.20036 au 
 T_jup = 3.887 
[ 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 15.5   n/a MPO366611  
rotation period rot_per 39.82 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Warner, B.D. (2013) Minor Planet Bull. 40, 71-80.]

123937 (2001 EX16)          Discovered 2001-Mar-03 by LINEAR at Socorro
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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