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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2047158716491384 3.4114e-08  
a 2.414327197878146 9.1806e-09 au
q 1.920076101118299 8.1772e-08 au
i 2.893310664460453 3.6752e-06 deg
node 30.00150704950194 7.8558e-05 deg
peri 8.397293196385016 7.9199e-05 deg
M 110.787895537356 1.1364e-05 deg
tp 2458578.820557353090
(2019-Apr-05.32055735)
4.2092e-05 TDB
period 1370.227303412414
3.75
7.8155e-06
2.14e-08
d
yr
n .2627301317843077 1.4986e-09 deg/d
Q 2.908578294637992 1.106e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      10101 days (27.66 yr)  
   first obs. used      1992-09-02  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:58:31  

Additional Information
 Earth MOID = .927697 au 
 Jupiter MOID = 2.51448 au 
 T_jup = 3.487 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456922.5 (2014-Sep-22.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2034408251465008 3.4012e-08  
q 1.923879650952595 8.1461e-08 au
tp 2457205.844767856424
(2015-Jul-02.34476786)
3.958e-05 TDB
node 30.03443996288251 7.8532e-05 deg
peri 7.949845291460103 7.9191e-05 deg
i 2.895109284774549 3.6735e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1481  
   data-arc span      10101 days (27.66 yr)  
   first obs. used      1992-09-02  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49219  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 04:58:31  

Additional Information
 Jupiter MOID = 2.51448 au 
 T_jup = 3.487 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.156799451591846E-15 -2.759560611632591E-15 3.198420895654311E-14 4.980762665866612E-15 -4.518832937278625E-14 -2.939450631132709E-16
q -2.759560611632591E-15 6.635910058312358E-15 1.367582503438705E-14 -1.194332261598595E-14 1.268442797429684E-13 6.704149536334538E-16
tp 3.198420895654311E-14 1.367582503438705E-14 1.566560229129492E-9 6.792821189980268E-14 4.140315792474324E-10 -8.864600482323215E-13
node 4.980762665866612E-15 -1.194332261598595E-14 6.792821189980268E-14 6.167240633874434E-9 -6.1593645382853E-9 -3.330139903818295E-11
peri -4.518832937278625E-14 1.268442797429684E-13 4.140315792474324E-10 -6.1593645382853E-9 6.271142369276497E-9 3.304199008745711E-11
i -2.939450631132709E-16 6.704149536334538E-16 -8.864600482323215E-13 -3.330139903818295E-11 3.304199008745711E-11 1.349470256849954E-11

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 14.6   n/a MPO350955  
rotation period rot_per 8.130 h n/a LCDB (Rev. 2019-August); 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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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