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14143 Hadfield (1998 SQ18)
Classification: Main-belt Asteroid          SPK-ID: 2014143
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1365454089358811 3.2996e-08  
a 2.378848755215407 5.7086e-09 au
q 2.054027879137907 7.8351e-08 au
i 5.969130299401676 3.7e-06 deg
node 169.2504973241832 2.5268e-05 deg
peri 177.1955100179215 2.7598e-05 deg
M 37.29605392801646 1.012e-05 deg
tp 2459061.661773756593
(2020-Jul-31.16177376)
3.7743e-05 TDB
period 1340.135381187892
3.67
4.824e-06
1.321e-08
d
yr
n .2686295765737468 9.6697e-10 deg/d
Q 2.703669631292906 6.4881e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1940  
   data-arc span      24234 days (66.35 yr)  
   first obs. used      1954-10-31  
   last obs. used      2021-03-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49789  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 00:18:04  

Additional Information
 Earth MOID = 1.04522 au 
 Jupiter MOID = 2.70164 au 
 T_jup = 3.520 
[ 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 14.71   n/a E2021B10  

14143 Hadfield           Discovered 1998 Sept. 18 by Spacewatch at Kitt Peak.
Chris Austin Hadfield (b. 1959), selected as a Canadian astronaut in 1992, flew on space shuttle missions STS-74 and STS-100.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26

[ show close-approach data ]
Alternate Designations
 1998 SQ18 = 1987 SB7 = 1994 NK2 = 2030 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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