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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1842952953833072 3.8979e-08  
a 3.19481896633507 2.0231e-08 au
q 2.606028861238156 1.3142e-07 au
i 5.626880466034039 4.3569e-06 deg
node 143.8167473869005 4.5892e-05 deg
peri 273.134745730437 4.7693e-05 deg
M 312.6645967731903 1.1751e-05 deg
tp 2459274.753000739608
(2021-Mar-01.25300074)
6.8421e-05 TDB
period 2085.77668163477
5.71
1.9812e-05
5.424e-08
d
yr
n .1725975763224291 1.6394e-09 deg/d
Q 3.783609071431984 2.3959e-08 au
  Orbit Determination Parameters
   # obs. used (total)      692  
   data-arc span      9750 days (26.69 yr)  
   first obs. used      1994-03-05  
   last obs. used      2020-11-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50802  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:09:03  

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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