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117781 Jamesfisher (2005 GF115)
Classification: Main-belt Asteroid          SPK-ID: 2117781
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05886968331047492 4.6733e-08  
a 2.738354783145335 1.8542e-08 au
q 2.577148704269844 1.2813e-07 au
i 4.546648881428681 5.9643e-06 deg
node 215.721897842636 5.9256e-05 deg
peri 21.90792696503013 7.7911e-05 deg
M 183.5471309726507 5.2956e-05 deg
tp 2460207.758429913233
(2023-Sep-20.25842991)
0.00024659 TDB
period 1655.133387054746
4.53
1.6811e-05
4.603e-08
d
yr
n .21750512847826 2.2092e-09 deg/d
Q 2.899560862020825 1.9634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      9973 days (27.30 yr)  
   first obs. used      1993-09-16  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:54:13  

Additional Information
 Earth MOID = 1.56629 au 
 Jupiter MOID = 2.08501 au 
 T_jup = 3.344 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457476.5 (2016-Mar-29.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05797967916120143 4.6499e-08  
q 2.58085064591359 1.2724e-07 au
tp 2456903.761997164922
(2014-Sep-03.26199716)
0.00024063 TDB
node 215.7816434469267 5.9172e-05 deg
peri 23.51807022838783 7.8504e-05 deg
i 4.548546392187183 5.9686e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      531  
   data-arc span      9973 days (27.30 yr)  
   first obs. used      1993-09-16  
   last obs. used      2021-01-05  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57553  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:54:13  

Additional Information
 Jupiter MOID = 2.08501 au 
 T_jup = 3.344 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.162159467668766E-15 -5.860581990455211E-15 -2.877889554067273E-12 -4.287093742970677E-17 -6.772448829320271E-13 5.18546052115971E-17
q -5.860581990455211E-15 1.619049393799788E-14 8.907145732159861E-12 -4.063266768800715E-15 2.089655960864285E-12 2.634358202508961E-16
tp -2.877889554067273E-12 8.907145732159861E-12 5.790123721156043E-8 1.325360336607533E-11 1.243063467001385E-8 -6.406745114844139E-12
node -4.287093742970677E-17 -4.063266768800715E-15 1.325360336607533E-11 3.501358270213255E-9 -3.48745762120297E-9 -1.201359977739791E-10
peri -6.772448829320271E-13 2.089655960864285E-12 1.243063467001385E-8 -3.48745762120297E-9 6.162826549124724E-9 1.184255615971706E-10
i 5.18546052115971E-17 2.634358202508961E-16 -6.406745114844139E-12 -1.201359977739791E-10 1.184255615971706E-10 3.562430378754379E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.65   n/a MPCxxxxx  

117781 Jamesfisher           Discovered 2005 Apr. 10 by Mt. Lemmon Survey at Mount Lemmon.
James Randall Fisher (b. 1942) is an author and Professor of English who earned a PhD at the University of Southern California.
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 2013-10-18Last Updated: 2013-10-21
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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