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27556 Williamprem (2000 JO54)
Classification: Main-belt Asteroid          SPK-ID: 2027556
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05150771581852881 5.1492e-08  
a 2.47734185862608 1.6075e-08 AU
q 2.349739638186622 1.2852e-07 AU
i 4.382071452088403 5.5369e-06 deg
node 94.80460522593344 8.7553e-05 deg
peri .6902583190884655 0.00012414 deg
M 35.91328358401677 8.6618e-05 deg
tp 2456858.420980220261
(2014-Jul-19.92098022)
0.00034285 JED
period 1424.220845778353
3.90
1.3863e-05
3.795e-08
d
yr
n .2527697871205192 2.4603e-09 deg/d
Q 2.604944079065539 1.6903e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1070  
   data-arc span      8866 days (24.27 yr)  
   first obs. used      1990-12-18  
   last obs. used      2015-03-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52888  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Apr-07 17:25:41  

Additional Information
 Earth MOID = 1.36628 AU 
 T_jup = 3.475 
[ 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 14.0 mag n/a MPO266096  

27556 Williamprem           Discovered 2000 May 6 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
William Prem mentored a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students. He teaches at the Central Middle School, Eden Prairie, Minnesota.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20111210/MPCPages.arcLast Updated: 2011-12-12

Alternate Designations
 2000 JO54 = 1996 LP4 = 1999 BF21 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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