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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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05150773437175122 6.1698e-08  
a 2.477341852000153 2.1756e-08 AU
q 2.349739585939306 1.6162e-07 AU
i 4.38206792366003 5.981e-06 deg
node 94.80461359175777 9.0659e-05 deg
peri .6902638752591685 0.00012881 deg
M 35.9132731877034 8.8386e-05 deg
tp 2456858.421021919843
(2014-Jul-19.92102192)
0.00035007 JED
period 1424.220840064496
3.90
1.8761e-05
5.136e-08
d
yr
n .2527697881346107 3.3297e-09 deg/d
Q 2.604944118060998 2.2877e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      895  
   data-arc span      8717 days (23.87 yr)  
   first obs. used      1990-12-18  
   last obs. used      2014-10-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52837  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:51:27  

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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