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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .329391885909441 4.9931e-08  
a 1.436162551118097 4.2954e-08 au
q .9631022599327931 9.8623e-08 au
i 30.33200383272954 2.1114e-05 deg
node 343.7282405179971 4.0863e-06 deg
peri 311.1627812536711 6.7842e-06 deg
M 84.41574899194313 1.9262e-05 deg
tp 2458853.090728023461
(2020-Jan-04.59072802)
2.7676e-05 TDB
period 628.6426235064147
1.72
2.8203e-05
7.722e-08
d
yr
n .5726624103087508 2.5691e-08 deg/d
Q 1.909222842303401 5.7103e-08 au
  Orbit Determination Parameters
   # obs. used (total)      171  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      2775 days (7.60 yr)  
   first obs. used      2009-03-02  
   last obs. used      2016-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:20:40  

Additional Information
 Earth MOID = .0412299 au 
 Jupiter MOID = 3.54541 au 
 T_jup = 4.479 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457229.5 (2015-Jul-26.0) TDB
Reference: JPL 43 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3297317347300238 2.6974e-08  
q .9615670647934303 3.1819e-08 au
tp 2456968.695814888819
(2014-Nov-07.19581489)
1.6308e-05 TDB
node 343.7481231070893 4.0986e-06 deg
peri 311.2069091010333 9.1409e-06 deg
i 30.33762836051826 2.1056e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      171  
   # delay obs. used      1  
   # Doppler obs. used      1  
   data-arc span      2775 days (7.60 yr)  
   first obs. used      2009-03-02  
   last obs. used      2016-10-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .36516  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-21 06:20:40  

Additional Information
 Jupiter MOID = 3.54541 au 
 T_jup = 4.479 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.275962640453835E-16 -8.071261216376751E-16 -3.115016677188591E-13 -2.751861659524578E-14 -1.089465790909703E-13 -8.948109255526618E-15
q -8.071261216376751E-16 1.012469341780156E-15 2.382223936822056E-13 4.236343293768156E-14 1.233953512099306E-13 1.241069253060258E-14
tp -3.115016677188591E-13 2.382223936822056E-13 2.659433246406369E-10 -1.340300823364556E-11 8.609239497179542E-11 1.192672875451401E-11
node -2.751861659524578E-14 4.236343293768156E-14 -1.340300823364556E-11 1.679845132086757E-11 -2.390888872616344E-11 4.589838119234937E-11
peri -1.089465790909703E-13 1.233953512099306E-13 8.609239497179542E-11 -2.390888872616344E-11 8.355554294688381E-11 -3.162754688664593E-11
i -8.948109255526618E-15 1.241069253060258E-14 1.192672875451401E-11 4.589838119234937E-11 -3.162754688664593E-11 4.433408429919385E-10

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 20.6   n/a E2016T48  
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

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