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19208 Starrfield (1992 RW)
Classification: Main-belt Asteroid          SPK-ID: 2019208
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 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2049956252377032 3.2459e-08  
a 2.413698295666421 8.8229e-09 au
q 1.918900704411104 7.8322e-08 au
i 2.893735475123401 3.5523e-06 deg
node 29.99958879603733 6.8011e-05 deg
peri 8.343600906147312 6.8618e-05 deg
M 214.921501373542 1.1428e-05 deg
tp 2459948.480142574837
(2023-Jan-03.98014257)
4.5446e-05 TDB
period 1369.691947519934
3.75
7.51e-06
2.056e-08
d
yr
n .2628328221187566 1.4411e-09 deg/d
Q 2.908495886921737 1.0631e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1630  
   data-arc span      10513 days (28.78 yr)  
   first obs. used      1992-09-02  
   last obs. used      2021-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .48356  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:46:34  

Additional Information
 Earth MOID = .925883 au 
 Jupiter MOID = 2.51687 au 
 T_jup = 3.487 
[ 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 14.61   n/a MPO614063  
rotation period rot_per 8.130 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]

19208 Starrfield           Discovered 1992 Sept. 2 by L. D. Schmadel and F. Börngen at Tautenburg.
Sumner Starrfield (b. 1940) is an American astronomer. Regents' professor at the Arizona State University, Starrfield explained nova outbursts with a thermonuclear runaway model. He is also a leading expert on stellar pulsations. The name was suggested by J. Krautter.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050407/MPCPages.arcLast Updated: 2005-04-15
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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