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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1365646700253915 3.3006e-08  
a 2.37922217282868 5.7004e-09 au
q 2.054304481879237 7.8374e-08 au
i 5.969045058266237 3.6992e-06 deg
node 169.247008482229 2.5266e-05 deg
peri 177.2646555751843 2.7594e-05 deg
M 89.87860667162495 1.0088e-05 deg
tp 2459061.839269163208
(2020-Jul-31.33926916)
3.7719e-05 TDB
period 1340.450943364262
3.67
4.8174e-06
1.319e-08
d
yr
n .2685663371585032 9.6519e-10 deg/d
Q 2.704139863778124 6.4789e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1942  
   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      .5012  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:44:51  

Additional Information
 Earth MOID = 1.0465 au 
 Jupiter MOID = 2.7011 au 
 T_jup = 3.519 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457409.5 (2016-Jan-22.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1372229531293936 3.302e-08  
q 2.052292422360199 7.8507e-08 au
tp 2457722.773702975231
(2016-Nov-30.27370298)
3.8532e-05 TDB
node 169.3139417236448 2.5274e-05 deg
peri 177.5557658410879 2.7576e-05 deg
i 5.968626883181738 3.6999e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1942  
   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      .5012  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 13:44:51  

Additional Information
 Jupiter MOID = 2.7011 au 
 T_jup = 3.519 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.090311649912851E-15 -2.587125888800451E-15 4.572235307721973E-13 3.453430059893806E-16 1.270513610984435E-13 -7.486282799966045E-16
q -2.587125888800451E-15 6.163279345345596E-15 -1.142350818420862E-12 -9.535870002826788E-16 -3.187422240964558E-13 1.832938838795372E-15
tp 4.572235307721973E-13 -1.142350818420862E-12 1.48468612254184E-9 2.052213303604568E-12 4.304794436805283E-10 -1.528875642069513E-13
node 3.453430059893806E-16 -9.535870002826788E-16 2.052213303604568E-12 6.38750836186578E-10 -6.343681920793716E-10 2.896508155911922E-11
peri 1.270513610984435E-13 -3.187422240964558E-13 4.304794436805283E-10 -6.343681920793716E-10 7.604611986192359E-10 -2.885618866904098E-11
i -7.486282799966045E-16 1.832938838795372E-15 -1.528875642069513E-13 2.896508155911922E-11 -2.885618866904098E-11 1.368913526779118E-11

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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