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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1574641582628864 3.9061e-08  
a 2.786625491733296 1.7108e-08 au
q 2.34783185428361 1.1448e-07 au
i 8.207403958640271 4.8486e-06 deg
node 58.59478854068772 3.1989e-05 deg
peri 228.85601612 3.6013e-05 deg
M 24.24744510345805 1.7936e-05 deg
tp 2458886.059480827852
(2020-Feb-06.55948083)
8.4315e-05 TDB
period 1699.08981033625
4.65
1.5647e-05
4.284e-08
d
yr
n .2118781466465012 1.9511e-09 deg/d
Q 3.225419129182981 1.9801e-08 au
  Orbit Determination Parameters
   # obs. used (total)      830  
   data-arc span      9697 days (26.55 yr)  
   first obs. used      1992-10-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58323  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:28:02  

Additional Information
 Earth MOID = 1.34121 au 
 Jupiter MOID = 1.95243 au 
 T_jup = 3.298 
[ show covariance matrix ]

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

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