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175259 Offenberger (2005 JH91)
Classification: Main-belt Asteroid          SPK-ID: 2175259
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2430361872187603 5.5955e-08  
a 3.152788714222992 3.4171e-08 au
q 2.386546966011898 1.7587e-07 au
i 10.74783660865535 5.5782e-06 deg
node 87.41419259833539 3.5883e-05 deg
peri 273.8763585089334 3.7634e-05 deg
M 173.170753326175 1.614e-05 deg
tp 2458216.913015551896
(2018-Apr-08.41301555)
8.2738e-05 TDB
period 2044.752405357793
5.60
3.3243e-05
9.101e-08
d
yr
n .1760604360003219 2.8623e-09 deg/d
Q 3.919030462434085 4.2476e-08 au
  Orbit Determination Parameters
   # obs. used (total)      334  
   data-arc span      7114 days (19.48 yr)  
   first obs. used      2001-10-17  
   last obs. used      2021-04-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57275  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:04:06  

Additional Information
 Earth MOID = 1.41218 au 
 Jupiter MOID = 1.71671 au 
 T_jup = 3.134 
[ 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 15.64   n/a MPCxxxxx  
diameter diameter 5.884 km 1.066 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.035   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

175259 Offenberger           Discovered 2005 May 10 by B. Christophe at Saint-Sulpice.
Allan Offenberger (b. 1938), a retired physicist and professor emeritus at the University of Alberta, was the discoverer's thesis advisor. His principal research was on laser plasma interactions. He now promotes the creation of an "Alberta-Canada Fusion Energy Institute" for developing long-lasting clean-energy sources.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20080819/MPCPages.arcLast Updated: 2008-08-25

[ show close-approach data ]
Alternate Designations
 2005 JH91 = 2006 PR30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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