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19619 Bethbell (1999 QA)
Classification: Main-belt Asteroid          SPK-ID: 2019619
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1076143854977608 3.1439e-08  
a 2.396962790700622 9.4489e-09 au
q 2.139015112918377 7.6908e-08 au
i 7.182206895973928 4.0756e-06 deg
node 168.5998607801711 2.8694e-05 deg
peri 130.0354765528363 3.4858e-05 deg
M 307.0677911526186 2.1456e-05 deg
tp 2459399.800267646727
(2021-Jul-04.30026765)
8.1136e-05 TDB
period 1355.471421185012
3.71
8.015e-06
2.194e-08
d
yr
n .2655902547065673 1.5704e-09 deg/d
Q 2.654910468482867 1.0466e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1434  
   data-arc span      8528 days (23.35 yr)  
   first obs. used      1997-01-14  
   last obs. used      2020-05-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52287  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:59:50  

Additional Information
 Earth MOID = 1.12999 au 
 Jupiter MOID = 2.53872 au 
 T_jup = 3.510 
[ 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 15.06   n/a E2021B10  
diameter diameter 2.298 km 0.437 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.4149 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.402   0.124 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

19619 Bethbell           Discovered 1999 Aug. 16 by G. Bell at Farpoint Obsevatory.
Beth Bell (b. 1973), the discoverer's daughter, shares an interest in astronomy and has been instrumental in reactivating her father's astronomical hobby.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010309/MPCPages.arcLast Updated: 2009-05-11

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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