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31262 (1998 ES8)
Classification: Main-belt Asteroid          SPK-ID: 2031262
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1215158491799861 2.8993e-08  
a 2.764839130404609 1.0924e-08 au
q 2.428867355627438 8.1318e-08 au
i 4.63777433963814 4.0722e-06 deg
node 191.9318179482853 3.972e-05 deg
peri 265.4810683331065 4.3687e-05 deg
M 36.4313344980682 1.7385e-05 deg
tp 2459030.567750259386
(2020-Jun-30.06775026)
8.0948e-05 TDB
period 1679.203102204915
4.60
9.9522e-06
2.725e-08
d
yr
n .2143874076502681 1.2706e-09 deg/d
Q 3.100810905181779 1.2252e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1510  
   data-arc span      8362 days (22.89 yr)  
   first obs. used      1998-02-26  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49652  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:42:27  

Additional Information
 Earth MOID = 1.45085 au 
 Jupiter MOID = 2.07054 au 
 T_jup = 3.324 
[ 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 14.37   n/a E2021B10  

31262 (1998 ES8)          Discovered 1998-Mar-05 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20011130/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 ES8 = 1999 LP4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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