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

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574641355529845 3.8407e-08  
a 2.78662549429862 1.6511e-08 au
q 2.347831919728979 1.1334e-07 au
i 8.207406404043732 4.8407e-06 deg
node 58.59479406015598 2.952e-05 deg
peri 228.8560166455685 3.386e-05 deg
M 24.24743946617791 1.7496e-05 deg
tp 2458886.059507276061
(2020-Feb-06.55950728)
8.2292e-05 TDB
period 1699.089812682484
4.65
1.5101e-05
4.134e-08
d
yr
n .2118781463539236 1.8831e-09 deg/d
Q 3.22541906886826 1.9111e-08 au
  Orbit Determination Parameters
   # obs. used (total)      918  
   data-arc span      9759 days (26.72 yr)  
   first obs. used      1992-10-22  
   last obs. used      2019-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58943  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:03:12  

Additional Information
 Earth MOID = 1.34121 au 
 Jupiter MOID = 1.95243 au 
 T_jup = 3.298 
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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.4   n/a MPO435954  
diameter diameter 3.648 km 0.394 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.304   0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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