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13433 Phelps (1999 VP52)
Classification: Main-belt Asteroid          SPK-ID: 2013433
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1756536786648616 5.6739e-08  
a 2.376089450967794 1.4654e-08 AU
q 1.95872059806853 1.3657e-07 AU
i 5.221494344411929 5.5316e-06 deg
node 82.92385771483508 7.0032e-05 deg
peri 243.5001592050894 7.224e-05 deg
M 124.4732215130249 1.7394e-05 deg
tp 2456537.942171898295
(2013-Sep-02.44217190)
6.3291e-05 JED
period 1337.804357374885
3.66
1.2376e-05
3.388e-08
d
yr
n .2690976434748742 2.4894e-09 deg/d
Q 2.793458303867059 1.7228e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      820  
   data-arc span      8503 days (23.28 yr)  
   first obs. used      1991-07-14  
   last obs. used      2014-10-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53682  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:19:47  

Additional Information
 Earth MOID = .954275 AU 
 T_jup = 3.515 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4 mag n/a MPO266029  

13433 Phelps           Discovered 1999 Nov. 3 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Kels Gordon Phelps (b. 1988) is a finalist in the 2002 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for his biochemistry, medicine, health, and microbiology project. He attends the East Middle School, Butte, Montana.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20021021/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1999 VP52 = 1991 NN2 = 1997 EA33 = 1998 KO39 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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