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100336 (1995 SQ18)
Classification: Main-belt Asteroid          SPK-ID: 2100336
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03829578301206838 5.2742e-08  
a 2.13595043006648 9.0359e-09 au
q 2.054152535872119 1.1569e-07 au
i .4782785794266143 3.4442e-06 deg
node 301.6522225347447 0.00078952 deg
peri 331.9000233707613 0.00079363 deg
M 59.68808478625604 8.1146e-05 deg
tp 2458811.452767329759
(2019-Nov-23.95276733)
0.00025682 TDB
period 1140.210881367698
3.12
7.2353e-06
1.981e-08
d
yr
n .315731068596868 2.0035e-09 deg/d
Q 2.21774832426084 9.3819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      8655 days (23.70 yr)  
   first obs. used      1995-09-18  
   last obs. used      2019-05-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53799  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:04:30  

Additional Information
 Earth MOID = 1.03783 au 
 Jupiter MOID = 2.79608 au 
 T_jup = 3.716 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.2   n/a MPO426630  

100336 (1995 SQ18)          Discovered 1995-Sep-18 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1995 SQ18 = 2001 SE181 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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