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(2011 ES4)
Classification: Apollo [NEO]          SPK-ID: 3558279
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2433527991144305 1.1423e-07  
a 1.096322632402959 1.1749e-08 au
q .8295294510751983 1.1971e-07 au
i 3.370676269182228 7.9971e-06 deg
node 339.8385637651982 1.3027e-05 deg
peri 274.7266754276453 1.7773e-05 deg
M 148.5673241015045 1.1023e-05 deg
tp 2459027.467852868440
(2020-Jun-26.96785287)
1.0367e-05 TDB
period 419.2817858441239
1.15
6.7397e-06
1.845e-08
d
yr
n .8586111110818367 1.3802e-08 deg/d
Q 1.36311581373072 1.4608e-08 au
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      3489 days (9.55 yr)  
   first obs. used      2011-02-23  
   last obs. used      2020-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:52:34  

Additional Information
 Earth MOID = .000199995 au 
 Jupiter MOID = 3.67451 au 
 T_jup = 5.635 
[ hide covariance matrix ]
Orbital Elements at Epoch 2458659.5 (2019-Jun-25.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2424841085243549 1.147e-07  
q .8259724638766195 1.2073e-07 au
tp 2458610.917954303611
(2019-May-07.41795430)
8.9193e-06 TDB
node 339.8986191129954 1.3022e-05 deg
peri 273.564658414757 1.7255e-05 deg
i 3.373553902207261 7.8954e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      142  
   data-arc span      3489 days (9.55 yr)  
   first obs. used      2011-02-23  
   last obs. used      2020-09-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45347  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-15 04:52:34  

Additional Information
 Jupiter MOID = 3.67451 au 
 T_jup = 5.635 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.315591552277724E-14 -1.384699017090101E-14 9.286861981985983E-14 5.160506671493498E-13 -1.562862187888738E-12 1.449547390279165E-13
q -1.384699017090101E-14 1.457464776708522E-14 -1.008747842359102E-13 -5.450965729531231E-13 1.643806069151017E-12 -1.520444909656494E-13
tp 9.286861981985983E-14 -1.008747842359102E-13 7.955383189607013E-11 6.170878904012363E-11 1.155199998449477E-11 -5.649728773349042E-12
node 5.160506671493498E-13 -5.450965729531231E-13 6.170878904012363E-11 1.695617671431836E-10 -1.506343651048118E-10 6.689196466619089E-11
peri -1.562862187888738E-12 1.643806069151017E-12 1.155199998449477E-11 -1.506343651048118E-10 2.977365583102504E-10 -8.493102791271635E-11
i 1.449547390279165E-13 -1.520444909656494E-13 -5.649728773349042E-12 6.689196466619089E-11 -8.493102791271635E-11 6.233771363840642E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 25.9   n/a E2020-SD9  

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