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190998 (2001 YC18)
Classification: Main-belt Asteroid          SPK-ID: 2190998
[ 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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0670932798335749 5.9752e-08  
a 2.594812982506848 1.9428e-08 au
q 2.420718468955723 1.5303e-07 au
i 15.81714902347059 6.2437e-06 deg
node 98.94857974466706 1.6456e-05 deg
peri 157.020302376293 4.2174e-05 deg
M 42.63730039450461 3.6133e-05 deg
tp 2459019.680727076654
(2020-Jun-19.18072708)		 0.00015396 TDB
period 1526.713409388241
4.18		 1.7146e-05
4.694e-08		 d
yr
n .2358006406351361 2.6482e-09 deg/d
Q 2.768907496057972 2.0731e-08 au
   Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      8290 days (22.70 yr)  
   first obs. used      1997-12-05  
   last obs. used      2020-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 06:56:23  

Additional Information
 Earth MOID = 1.40859 au 
 Jupiter MOID = 2.33734 au 
 T_jup = 3.361 
[ 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 15.82   n/a E2021B55  

190998 (2001 YC18)          Discovered 2001-Dec-17 by LINEAR at Socorro
Reference: 20080917/Numbers.arcLast Updated: 2008-09-19

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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