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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 
[ 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 14.6   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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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
1961-Jul-09 19:31 00:02 Hygie 0.0332393684396701 0.0332367023997465 0.0332420347826768 3.65313933500729 3.65313901681955 2437490.312861875 2.21254044226137 212.680885556121 41.5309105994519 52.8513958069636 96263.5542907437 T 20 CATAB v2.0f-lin.ifort 2020-May-20 04:58:45 2020-May-20 04:58
2102-Oct-31 08:19 00:02 Amphi 0.0259735585668434 0.0259641029191698 0.0259830159579612 2.56415053350534 2.564150447188 2489102.846375319 1.76218508943421 578.575194844603 39.1830680710345 35.6175661707535 57934.344066998 T 20 CATAB v2.0f-lin.ifort 2020-May-20 04:58:45 2020-May-20 04:58
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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