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100966 (1998 QP18)
Classification: Main-belt Asteroid          SPK-ID: 2100966
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 .2077099160609224 4.044e-08  
a 2.383681836031391 8.647e-09 au
q 1.888567481953365 9.6785e-08 au
i 8.683910788277265 4.0904e-06 deg
node 152.5811352164271 2.1768e-05 deg
peri 166.6380120157332 2.3884e-05 deg
M 29.54795249069916 7.5795e-06 deg
tp 2459090.169458719773
(2020-Aug-28.66945872)
2.8467e-05 TDB
period 1344.221562336142
3.68
7.3144e-06
2.003e-08
d
yr
n .2678129931008925 1.4573e-09 deg/d
Q 2.878796190109417 1.0443e-08 au
  Orbit Determination Parameters
   # obs. used (total)      662  
   data-arc span      8150 days (22.31 yr)  
   first obs. used      1998-08-17  
   last obs. used      2020-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49846  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 08:26:38  

Additional Information
 Earth MOID = .875062 au 
 Jupiter MOID = 2.4535 au 
 T_jup = 3.492 
[ 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 16.39   n/a E2021B55  

100966 (1998 QP18)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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