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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1365646699090439 3.3008e-08  
a 2.379222172788436 5.7007e-09 au
q 2.054304482121305 7.8379e-08 au
i 5.96904492221053 3.6996e-06 deg
node 169.2470088153229 2.5266e-05 deg
peri 177.26465533 2.7594e-05 deg
M 89.87860661251703 1.0088e-05 deg
tp 2459061.839269391786
(2020-Jul-31.33926939)
3.7721e-05 TDB
period 1340.450943330252
3.67
4.8177e-06
1.319e-08
d
yr
n .2685663371653172 9.6525e-10 deg/d
Q 2.704139863455568 6.4792e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1941  
   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      .49967  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:12:55  

Additional Information
 Earth MOID = 1.0465 au 
 Jupiter MOID = 2.7011 au 
 T_jup = 3.519 
[ 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 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

Alternate Designations
 1998 SQ18 = 1987 SB7 = 1994 NK2 = 2030 T-1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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