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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1367228342586459 3.5982e-08  
a 2.379291526173918 8.2407e-09 au
q 2.053988045187841 8.7484e-08 au
i 5.968677882316383 3.9068e-06 deg
node 169.2507923524597 3.429e-05 deg
peri 177.1619364743916 3.6922e-05 deg
M 343.599209539086 1.5832e-05 deg
tp 2459061.570600858209
(2020-Jul-31.07060086)
5.9107e-05 TDB
period 1340.509554179749
3.67
6.9643e-06
1.907e-08
d
yr
n .2685545946893919 1.3952e-09 deg/d
Q 2.704595007159995 9.3674e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1419  
   data-arc span      23955 days (65.59 yr)  
   first obs. used      1954-10-31  
   last obs. used      2020-06-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54571  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:41:46  

Additional Information
 Earth MOID = 1.04698 au 
 Jupiter MOID = 2.70054 au 
 T_jup = 3.519 
[ 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 14.7   n/a MPO473958  

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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