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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2856104716813102 1.5871e-08  
a 2.335731564770255 8.9901e-09 au
q 1.668622170835298 3.6848e-08 au
i 22.32008473150573 5.2722e-07 deg
node 290.0198512625471 1.7238e-06 deg
peri 106.6607567625038 2.5233e-06 deg
M 332.886419545105 4.7244e-06 deg
tp 2459494.701289907138
(2021-Oct-07.20128991)
1.7639e-05 TDB
period 1303.865582245049
3.57
7.5278e-06
2.061e-08
d
yr
n .2761020805381927 1.5941e-09 deg/d
Q 3.002840958705212 1.1558e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1477  
   data-arc span      14048 days (38.46 yr)  
   first obs. used      1983-01-10  
   last obs. used      2021-06-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43791  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 04:55:39  

Additional Information
 Earth MOID = .807896 au 
 Jupiter MOID = 2.68206 au 
 T_jup = 3.416 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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. 2020-October); Warner et al., 2009 Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2010) http://www.asu.cas.cz/~ppravec/neo.htm]
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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

Alternate Designations
 1990 BJ = 1983 AD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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