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JPL Small-Body Database Browser
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379918 (2012 JE66)
Classification: Main-belt Asteroid          SPK-ID: 2379918
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1988084041277736 4.7218e-08  
a 2.344970907133534 1.7845e-08 au
q 1.878770983360258 1.1172e-07 au
i 5.645876369141784 7.2188e-06 deg
node 126.8861371594114 6.2115e-05 deg
peri 122.4666678280173 6.5723e-05 deg
M 73.66522442270389 1.9989e-05 deg
tp 2458732.111050229679
(2019-Sep-05.61105023)
7.265e-05 TDB
period 1311.609686585533
3.59
1.4972e-05
4.099e-08
d
yr
n .2744718979143676 3.133e-09 deg/d
Q 2.811170830906809 2.1393e-08 au
  Orbit Determination Parameters
   # obs. used (total)      196  
   data-arc span      6705 days (18.36 yr)  
   first obs. used      2001-02-20  
   last obs. used      2019-07-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59776  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:57:39  

Additional Information
 Earth MOID = .871907 au 
 Jupiter MOID = 2.24217 au 
 T_jup = 3.528 
[ 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 17.3   n/a MPO476778  
rotation period rot_per 6.76 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:
[Chang, C.-K.; Lin, H.-W.; Ip, W.-H.; Prince, T.A.; et al. (2016) Astrophys. J. Sup. Ser. 227, A20.]

379918 (2012 JE66)          Discovered 2008-Feb-08 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2013-11-20

Alternate Designations
 2012 JE66 = 2001 FB173 = 2008 CD66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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