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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2189814766811907 3.2638e-08  
a 2.360876701344619 8.8514e-09 au
q 1.843888435021956 7.78e-08 au
i 1.762190114019818 4.4353e-06 deg
node 213.2487645179 0.0001263 deg
peri 81.72139542116318 0.00012673 deg
M 126.3694486620519 1.0122e-05 deg
tp 2458735.398247152055
(2019-Sep-08.89824715)
3.6585e-05 TDB
period 1324.977142798444
3.63
7.4514e-06
2.04e-08
d
yr
n .2717028002759768 1.528e-09 deg/d
Q 2.877864967667282 1.079e-08 au
  Orbit Determination Parameters
   # obs. used (total)      552  
   data-arc span      8673 days (23.75 yr)  
   first obs. used      1997-04-07  
   last obs. used      2021-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57525  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 09:24:25  

Additional Information
 Earth MOID = .826944 au 
 Jupiter MOID = 2.32829 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. 2020-October); 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) Ap. J. Supp. Ser. 241, A6.]

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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