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74439 Brenden (1999 CT2)
Classification: Main-belt Asteroid          SPK-ID: 2074439
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842952957378729 3.9277e-08  
a 3.194818964141822 2.6746e-08 au
q 2.60602885831634 1.3144e-07 au
i 5.626883639936435 5.1659e-06 deg
node 143.8167374238719 4.7076e-05 deg
peri 273.1347540791683 4.9305e-05 deg
M 312.6645989386773 1.631e-05 deg
tp 2459274.752987910745
(2021-Mar-01.25298791)
9.6311e-05 TDB
period 2085.776679486936
5.71
2.6192e-05
7.171e-08
d
yr
n .1725975765001618 2.1674e-09 deg/d
Q 3.783609069967304 3.1675e-08 au
  Orbit Determination Parameters
   # obs. used (total)      528  
   data-arc span      9388 days (25.70 yr)  
   first obs. used      1994-03-05  
   last obs. used      2019-11-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53691  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 14:05:10  

Additional Information
 Earth MOID = 1.6257 au 
 Jupiter MOID = 1.61498 au 
 T_jup = 3.162 
[ 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 14.9   n/a MPO449470  
diameter diameter 5.939 km 0.071 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.060   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74439 Brenden           Discovered 1999 Feb. 6 by W. R. Cooney Jr. at Baton Rouge.
Craig Brenden (b. 1946) is a teacher of chemistry and an amateur astronomer. A co-founder of the Baton Rouge Astronomical Society, he has served the society as Vice-president many times, and was editor of Night Visions (the society newsletter) for thirty years.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2013-07-22Last Updated: 2014-08-13

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Alternate Designations
 1999 CT2 = 2002 PH151 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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