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24138 Benjaminlu (1999 VB81)
Classification: Main-belt Asteroid          SPK-ID: 2024138
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08786114140349795 6.0935e-08  
a 2.281699658271161 1.4579e-08 AU
q 2.081226921955486 1.4172e-07 AU
i 6.392801648625486 7.1629e-06 deg
node 186.8331476798318 5.0796e-05 deg
peri 75.03171933498948 6.7066e-05 deg
M 279.8033503859298 4.255e-05 deg
tp 2457280.939941098033
(2015-Sep-15.43994110)
0.00014835 JED
period 1258.885243724436
3.45
1.2066e-05
3.303e-08
d
yr
n .2859672887537654 2.7409e-09 deg/d
Q 2.482172394586837 1.586e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      716  
   data-arc span      8858 days (24.25 yr)  
   first obs. used      1991-05-13  
   last obs. used      2015-08-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .6078  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 15:03:26  

Additional Information
 Earth MOID = 1.0787 AU 
 T_jup = 3.592 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.1 mag n/a MPO337462  

24138 Benjaminlu           Discovered 1999 Nov. 4 by the Lincoln Laboratory Near-Earth Asteroid Research Team in Socorro.
Benjamin Brice Lu (b. 1990) is a finalist in the 2008 Intel Science Talent Search (STS), a science competition for high school seniors, for his zoology project. He attends the Richard Montgomery High School, Rockville, Maryland.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080221/MPCPages.arcLast Updated: 2008-03-05

[ show close-approach data ]
Alternate Designations
 1999 VB81 = 1991 JN4 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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