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129187 Danielalfred (2005 LB50)
Classification: Main-belt Asteroid          SPK-ID: 2129187
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1293804851669108 7.4066e-08  
a 2.598508680925836 2.4758e-08 au
q 2.262312367077222 1.8375e-07 au
i 29.19222257426902 7.7029e-06 deg
node 125.3570512261394 1.0335e-05 deg
peri 214.8938850134878 2.9645e-05 deg
M 171.956639799208 3.5437e-05 deg
tp 2458269.695632552964
(2018-May-31.19563255)
0.00014315 TDB
period 1529.976234637639
4.19
2.1866e-05
5.987e-08
d
yr
n .2352977725077296 3.3628e-09 deg/d
Q 2.934704994774449 2.7962e-08 au
  Orbit Determination Parameters
   # obs. used (total)      399  
   data-arc span      6847 days (18.75 yr)  
   first obs. used      2001-07-20  
   last obs. used      2020-04-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60201  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 21:42:19  

Additional Information
 Earth MOID = 1.27877 au 
 Jupiter MOID = 2.43203 au 
 T_jup = 3.226 
[ 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 15.6   n/a MPO366665  

129187 Danielalfred           Discovered 2005 June 11 by the Catalina Sky Survey.
Daniel Alfred (b. 1985) was the lead thermal engineer on OSIRIS-REx Asteroid Sample Return Mission OCAMS camera system. He also worked as a Honeywell Aerospace mechanical engineer.
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 2017-01-12Last Updated: 2017-01-17

Alternate Designations
 2005 LB50 = 2001 QW146 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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