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120211 (2004 ES39)
Classification: Main-belt Asteroid          SPK-ID: 2120211
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2190680553586691 3.3304e-08  
a 2.360424159284007 9.2356e-09 au
q 1.843330628888038 7.9773e-08 au
i 1.762441379968441 4.63e-06 deg
node 213.2517640688811 0.00013027 deg
peri 81.67007426250814 0.00013077 deg
M 72.06853609332211 1.0307e-05 deg
tp 2458735.328586802389
(2019-Sep-08.82858680)
3.7678e-05 TDB
period 1324.596195870077
3.63
7.7741e-06
2.128e-08
d
yr
n .2717809405782942 1.5951e-09 deg/d
Q 2.877517689679975 1.1259e-08 au
  Orbit Determination Parameters
   # obs. used (total)      522  
   data-arc span      8259 days (22.61 yr)  
   first obs. used      1997-04-07  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58142  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 09:59:52  

Additional Information
 Earth MOID = .828349 au 
 Jupiter MOID = 2.32905 au 
 T_jup = 3.518 
[ 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 16.3   n/a MPO436580  
rotation period rot_per 18.11 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.-H.; Lin, H.-W.; Ip, W.-H.; Chen, W.-P.; et al. (2019) ArXiv:1901.08719.]

120211 (2004 ES39)          Discovered 2004-Mar-15 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Alternate Designations
 2004 ES39 = 1997 GN3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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