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118168 (1981 EQ37)
Classification: Main-belt Asteroid          SPK-ID: 2118168
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06882356356109837 3.6476e-08  
a 2.659733858948857 1.4995e-08 au
q 2.476681496651885 9.644e-08 au
i 3.383841423462361 4.5765e-06 deg
node 315.0518823481803 8.6845e-05 deg
peri 128.8827236670737 9.5628e-05 deg
M 142.2961450876133 4.0916e-05 deg
tp 2458574.252025900291
(2019-Mar-31.75202590)
0.00017911 TDB
period 1584.36667793835
4.34
1.3399e-05
3.668e-08
d
yr
n .2272201284038922 1.9216e-09 deg/d
Q 2.842786221245829 1.6027e-08 au
  Orbit Determination Parameters
   # obs. used (total)      614  
   data-arc span      14327 days (39.23 yr)  
   first obs. used      1981-03-01  
   last obs. used      2020-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50897  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 18:13:32  

Additional Information
 Earth MOID = 1.49418 au 
 Jupiter MOID = 2.29214 au 
 T_jup = 3.380 
[ 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 15.72   n/a E2021B55  

118168 (1981 EQ37)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

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Alternate Designations
 1981 EQ37 = 2000 QE26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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