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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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563852746195223 6.3506e-08  
a 2.785942491859208 3.1369e-08 AU
q 2.35026211019561 1.8826e-07 AU
i 8.211401742487581 7.2951e-06 deg
node 58.6247965350435 5.2989e-05 deg
peri 229.3956898956057 6.067e-05 deg
M 277.5305065412437 3.3361e-05 deg
tp 2457189.587675168484
(2015-Jun-16.08767517)
0.00016144 JED
period 1698.465180105722
4.65
2.8687e-05
7.854e-08
d
yr
n .2119560672875211 3.5799e-09 deg/d
Q 3.221622873522807 3.6275e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      497  
   data-arc span      7919 days (21.68 yr)  
   first obs. used      1992-10-22  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .60546  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:57:07  

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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