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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1564849838969307 6.3485e-08  
a 2.786244388954981 3.1285e-08 AU
q 2.350238980616447 1.8826e-07 AU
i 8.211199831920954 7.2885e-06 deg
node 58.62515326051104 5.2984e-05 deg
peri 229.3727106430889 6.0657e-05 deg
M 319.9491605053233 3.3778e-05 deg
tp 2457189.488927346174
(2015-Jun-15.98892735)
0.00016137 JED
period 1698.741267425009
4.65
2.8611e-05
7.833e-08
d
yr
n .2119216192031976 3.5693e-09 deg/d
Q 3.222249797293514 3.618e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      505  
   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      .60229  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Aug-13 14:44:35  

Additional Information
 Earth MOID = 1.3451 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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