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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1567054365797754 5.934e-08  
a 2.786926700710102 2.353e-08 au
q 2.350200135359493 1.7041e-07 au
i 8.21049266961391 6.5328e-06 deg
node 58.61809582276437 5.1382e-05 deg
peri 229.3320091954579 5.6313e-05 deg
M 44.73524209755084 2.3929e-05 deg
tp 2457189.329116105382
(2015-Jun-15.82911611)
0.00011214 JED
period 1699.365302109868
4.65
2.1522e-05
5.892e-08
d
yr
n .2118437981245337 2.6829e-09 deg/d
Q 3.223653266060712 2.7217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      532  
   data-arc span      8394 days (22.98 yr)  
   first obs. used      1992-10-22  
   last obs. used      2015-10-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58977  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Oct-28 16:59:05  

Additional Information
 Earth MOID = 1.3421 au 
 Jupiter MOID = 1.94805 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 14.5 mag n/a MPO351016  

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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