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JPL Small-Body Database Browser
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65213 Peterhobbs (2002 EC9)
Classification: Main-belt Asteroid          SPK-ID: 2065213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06688242280334304 5.9021e-08  
a 3.064166406112415 2.4354e-08 au
q 2.859227532999004 1.894e-07 au
i 12.7632221722728 6.1522e-06 deg
node 182.8778494667435 1.9339e-05 deg
peri 21.88274283094975 3.6859e-05 deg
M 122.9353647994796 3.3395e-05 deg
tp 2458331.476642112633
(2018-Jul-31.97664211)
0.00017891 TDB
period 1959.146655905734
5.36
2.3357e-05
6.395e-08
d
yr
n .1837534719081907 2.1907e-09 deg/d
Q 3.269105279225826 2.5983e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1056  
   data-arc span      7783 days (21.31 yr)  
   first obs. used      1997-02-14  
   last obs. used      2018-06-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55787  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:04:42  

Additional Information
 Earth MOID = 1.86093 au 
 Jupiter MOID = 1.69165 au 
 T_jup = 3.192 
[ 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 14.0   n/a MPO436236  

65213 Peterhobbs           Discovered 2002 Mar. 12 by Tenagra II at Nogales.
Englishman Peter Hobbs (b. 1925) is a master draughtsman for the British National Coal Board, a lifelong member of Mensa and a perfect-pitch pianist who teaches many students.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2016-06-20Last Updated: 2016-06-21

[ show close-approach data ]
Alternate Designations
 2002 EC9 = 1999 TN238 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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