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23008 Rebeccajohns (1999 VA149)
Classification: Main-belt Asteroid          SPK-ID: 2023008
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06395369824718425 5.6161e-08  
a 2.980817215441149 1.8056e-08 au
q 2.790182930714813 1.694e-07 au
i 2.321189109612451 5.4189e-06 deg
node 159.1427435720644 0.00010925 deg
peri 178.6452068749256 0.00011542 deg
M 70.17832706554752 3.7076e-05 deg
tp 2458634.060775025091
(2019-May-30.56077503)
0.00019429 TDB
period 1879.755852084561
5.15
1.7079e-05
4.676e-08
d
yr
n .1915142328727301 1.7401e-09 deg/d
Q 3.171451500167484 1.9211e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1029  
   data-arc span      10503 days (28.76 yr)  
   first obs. used      1991-02-22  
   last obs. used      2019-11-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5592  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 01:01:57  

Additional Information
 Earth MOID = 1.78074 au 
 Jupiter MOID = 2.08624 au 
 T_jup = 3.255 
[ 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 14.5   n/a MPO439257  
diameter diameter 3.309 km 1.103 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.177   0.144 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

23008 Rebeccajohns           Discovered 1999 Nov. 14 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Rebecca Johns mentored a finalist in the 2007 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Troy High School, Troy, Michigan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070303/MPCPages.arcLast Updated: 2010-04-12

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