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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03818346095598742 3.9958e-08  
a 2.135794372819978 7.4731e-09 au
q 2.054242351775388 8.5041e-08 au
i .4782912312747171 2.9986e-06 deg
node 301.651171733678 0.00074721 deg
peri 331.7924245320313 0.00075097 deg
M 122.9596846301613 7.5251e-05 deg
tp 2458811.098317535544
(2019-Nov-23.59831754)		 0.00023845 TDB
period 1140.085924169796
3.12		 5.9837e-06
1.638e-08		 d
yr
n .3157656737689749 1.6573e-09 deg/d
Q 2.217346393864567 7.7585e-09 au
   Orbit Determination Parameters
   # obs. used (total)      473  
   data-arc span      9247 days (25.32 yr)  
   first obs. used      1995-09-18  
   last obs. used      2021-01-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53653  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:25:01  

Additional Information
 Earth MOID = 1.03608 au 
 Jupiter MOID = 2.79506 au 
 T_jup = 3.717 
[ 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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