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477162 (2009 ES)
Classification: Apollo [NEO, PHA]          SPK-ID: 2477162
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 45 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .329341679916125 4.9336e-08  
a 1.436198924194232 4.2317e-08 au
q .9631987578063724 9.7322e-08 au
i 30.33395456881878 2.0963e-05 deg
node 343.7235545353608 4.0701e-06 deg
peri 311.1921449477744 6.7735e-06 deg
M 311.1380706080472 2.8458e-05 deg
tp 2459481.827384479830
(2021-Sep-24.32738448)
5.3341e-05 TDB
period 628.6665057028614
1.72
2.7785e-05
7.607e-08
d
yr
n .572640655632692 2.5309e-08 deg/d
Q 1.909199090582092 5.6254e-08 au
  Orbit Determination Parameters
   # obs. used (total)      175  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      4368 days (11.96 yr)  
   first obs. used      2009-03-02  
   last obs. used      2021-02-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .36149  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-14 16:45:41  

Additional Information
 Earth MOID = .0404683 au 
 Jupiter MOID = 3.54483 au 
 T_jup = 4.479 
[ 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 20.71   n/a MPCxxxxx  
rotation period rot_per 28.0 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:
[Warner, B.D. (2017) Minor Planet Bull. 44, 22-36.]

477162 (2009 ES)          Discovered 2009-Mar-02 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2016-11-20

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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