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187283 Jeffhopkins (2005 TC66)
Classification: Main-belt Asteroid          SPK-ID: 2187283
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09905037181230672 4.7019e-08  
a 2.783095456899489 1.48e-08 au
q 2.507428817104453 1.2882e-07 au
i 4.723858390707756 3.89e-06 deg
node 118.7076046032732 6.5855e-05 deg
peri 287.5268487492009 7.3049e-05 deg
M 75.11516253290955 2.8821e-05 deg
tp 2458846.652858989805
(2019-Dec-29.15285899)
0.00013595 TDB
period 1695.862279574514
4.64
1.3527e-05
3.703e-08
d
yr
n .2122813888462233 1.6933e-09 deg/d
Q 3.058762096694525 1.6266e-08 au
  Orbit Determination Parameters
   # obs. used (total)      419  
   data-arc span      7028 days (19.24 yr)  
   first obs. used      2001-12-17  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53153  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:54:45  

Additional Information
 Earth MOID = 1.52117 au 
 Jupiter MOID = 2.27856 au 
 T_jup = 3.320 
[ 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 16.2   n/a MPO502999  

187283 Jeffhopkins           Discovered 2005 Oct. 3 by the Catalina Sky Survey.
Jeffrey L. Hopkins (b. 1940) is a leading amateur photometrist. His extensive work on \epsilon Aurigae during the 1982-1984 and 2009-2011 campaigns has been instrumental in understanding one of the most puzzling objects in the galaxy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110517/MPCPages.arcLast Updated: 2011-06-24

[ show close-approach data ]
Alternate Designations
 2005 TC66 = 2001 YD103 = 2007 CH40 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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