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117564 (2005 EW26)
Classification: Main-belt Asteroid          SPK-ID: 2117564
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04045895383390769 3.8018e-08  
a 2.677412304512726 2.1421e-08 au
q 2.569087003690109 1.0415e-07 au
i 2.359958689438945 6.4734e-06 deg
node 357.7279607093726 0.0001086 deg
peri 245.2515430944678 0.00013838 deg
M 101.2943047769958 8.3963e-05 deg
tp 2458550.249880712255
(2019-Mar-07.74988071)
0.00037358 TDB
period 1600.189105403677
4.38
1.9203e-05
5.257e-08
d
yr
n .2249734101952803 2.6999e-09 deg/d
Q 2.785737605335343 2.2287e-08 au
  Orbit Determination Parameters
   # obs. used (total)      396  
   data-arc span      7244 days (19.83 yr)  
   first obs. used      1998-09-02  
   last obs. used      2018-07-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56814  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 02:40:16  

Additional Information
 Earth MOID = 1.55708 au 
 Jupiter MOID = 2.20344 au 
 T_jup = 3.376 
[ 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 16.0   n/a MPO436564  

117564 (2005 EW26)          Discovered 2005-Mar-03 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1974-Mar-17 04:59 00:01 Hebe 0.0359320260650998 0.0359264629430411 0.0359375908447381 6.55942393377831 6.55942390740224 2442123.707393205 1.26053752703852 483.468697202587 65.5595827781608 55.7574776504986 68050.5157459145 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 02:40:25 2019-Jul-14 02:40
2133-Mar-11 04:45 00:03 Thisb 0.0405767481249114 0.0405507691193957 0.0406027426352803 3.14808291113684 3.14808285776018 2500191.697942066 2.65460900758568 1800.90573319223 84.8243677823635 44.1072954201532 49820.6202074625 T 16 CATAB v2.0e-lin.ifort 2019-Jul-14 02:40:25 2019-Jul-14 02:40
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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