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27422 Robheckman (2000 ET170)
Classification: Main-belt Asteroid          SPK-ID: 2027422
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .15638523873265 7.1294e-08  
a 2.785942482997091 3.4237e-08 AU
q 2.350262202698159 2.0837e-07 AU
i 8.211414966106027 8.6474e-06 deg
node 58.62478739702133 6.1023e-05 deg
peri 229.3957052698323 6.976e-05 deg
M 277.5305053041463 3.8033e-05 deg
tp 2457189.587679148519
(2015-Jun-16.08767915)
0.00018377 JED
period 1698.465172001463
4.65
3.1309e-05
8.572e-08
d
yr
n .2119560682988735 3.9072e-09 deg/d
Q 3.221622763296022 3.9591e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      461  
   data-arc span      7830 days (21.44 yr)  
   first obs. used      1992-10-22  
   last obs. used      2014-03-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .61634  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Apr-17 14:25:32  

Additional Information
 Earth MOID = 1.34326 AU 
 T_jup = 3.298 
[ 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 14.4 mag n/a MPO263582  

27422 Robheckman           Discovered 2000 Mar. 5 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Robert Tanner Heckman (b. 1997) is a finalist in the 2011 Broadcom MASTERS, a math and science competition for middle-school students, for his biochemistry, medicine, health science and microbiology project. He attends the Kailua Intermediate School, Kailua, Hawaii.
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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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