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JPL Small-Body Database Browser
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46277 Jeffhall (2001 JH7)
Classification: Outer Main-belt Asteroid          SPK-ID: 2046277
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1235392013952681 4.656e-08  
a 3.239855826342633 3.1458e-08 au
q 2.839606624920458 1.5176e-07 au
i 6.117958945678305 5.2319e-06 deg
node 125.875530144302 4.4984e-05 deg
peri 222.8613712290613 4.8976e-05 deg
M 279.8636797535602 2.0131e-05 deg
tp 2459074.647919437533
(2020-Aug-13.14791944)
0.0001217 TDB
period 2130.036049479018
5.83
3.1023e-05
8.494e-08
d
yr
n .169011224053251 2.4616e-09 deg/d
Q 3.640105027764809 3.5344e-08 au
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      8482 days (23.22 yr)  
   first obs. used      1995-04-22  
   last obs. used      2018-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52114  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-03 23:50:51  

Additional Information
 Earth MOID = 1.83577 au 
 Jupiter MOID = 1.77129 au 
 T_jup = 3.163 
[ 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 14.1   n/a MPO319637  
diameter diameter 8.394 km 0.687 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.057   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46277 Jeffhall           Discovered 2001 May 15 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Jeffrey C. Hall (b. 1964) is director of Lowell Observatory. He works on the observatory's Solar Stellar Spectrograph project for long-term monitoring of the Sun and solar-like stars, and is interested in the evolution and interaction of binary stars.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110615/MPCPages.arcLast Updated: 2013-03-28

[ show close-approach data ]
Alternate Designations
 2001 JH7 = 2000 EC81 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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