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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2048695885528851 3.4101e-08  
a 2.413921541387829 9.1666e-09 au
q 1.919382428404758 8.1721e-08 au
i 2.893604384413982 3.6728e-06 deg
node 29.99902557870648 7.8512e-05 deg
peri 8.365664537214048 7.9151e-05 deg
M 163.3760006432686 1.1508e-05 deg
tp 2458578.817113895976
(2019-Apr-05.31711390)
4.204e-05 TDB
period 1369.881978480601
3.75
7.803e-06
2.136e-08
d
yr
n .2627963617707362 1.4969e-09 deg/d
Q 2.9084606543709 1.1045e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1488  
   data-arc span      10119 days (27.70 yr)  
   first obs. used      1992-09-02  
   last obs. used      2020-05-17  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49444  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:48:58  

Additional Information
 Earth MOID = .925946 au 
 Jupiter MOID = 2.51576 au 
 T_jup = 3.487 
[ 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 14.59   n/a E2021B10  
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

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