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JPL Small-Body Database Browser
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19982 Barbaradoore (1990 BJ)
Classification: Main-belt Asteroid          SPK-ID: 2019982
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2863017307331911 3.8545e-08  
a 2.335036545060291 1.022e-08 au
q 1.666511540884279 8.8825e-08 au
i 22.32696239756023 6.2835e-06 deg
node 290.0234151012124 1.1575e-05 deg
peri 106.7511579320723 1.737e-05 deg
M 223.5011609146605 1.2678e-05 deg
tp 2459494.657517793151
(2021-Oct-07.15751779)
4.7913e-05 TDB
period 1303.283658656706
3.57
8.5565e-06
2.343e-08
d
yr
n .2762253616922136 1.8135e-09 deg/d
Q 3.003561549236304 1.3146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1301  
   data-arc span      13270 days (36.33 yr)  
   first obs. used      1983-01-10  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42774  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 02:47:45  

Additional Information
 Earth MOID = .806002 au 
 Jupiter MOID = 2.67994 au 
 T_jup = 3.416 
[ 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 13.6   n/a MPO337427  
diameter diameter 4.668 km 0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.3162 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.306   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

19982 Barbaradoore           Discovered 1990 Jan. 22 by Eleanor Francis Helin at Palomar.
Barbara Hendricks Doore (b. 1933) is a cousin of the discoverer. Always an active sports enthusiast with boundless energy, she excelled at sailing and golf. As a popular leader/volunteer, she has devoted much of her later years to the Boys and Girls Club of Cathedral City, California.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Alternate Designations
 1990 BJ = 1983 AD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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