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127030 Herrington (2002 GZ28)
Classification: Main-belt Asteroid          SPK-ID: 2127030
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04133844549592373 4.056e-08  
a 2.678859762421477 1.7096e-08 au
q 2.568119864141393 1.1207e-07 au
i 1.013742940546447 5.2713e-06 deg
node 328.5617888113637 0.00029635 deg
peri 117.1593460709737 0.0003068 deg
M 205.4293365443098 7.9657e-05 deg
tp 2459888.119153922724
(2022-Nov-04.61915392)
0.00035671 TDB
period 1601.486917879098
4.38
1.5331e-05
4.197e-08
d
yr
n .2247910963123944 2.1519e-09 deg/d
Q 2.789599660701561 1.7803e-08 au
  Orbit Determination Parameters
   # obs. used (total)      495  
   data-arc span      9046 days (24.77 yr)  
   first obs. used      1995-09-18  
   last obs. used      2020-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57202  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:36:04  

Additional Information
 Earth MOID = 1.58414 au 
 Jupiter MOID = 2.28642 au 
 T_jup = 3.376 
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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 16.02   n/a E2021B55  

127030 Herrington           Discovered 2002 Apr. 6 by M. W. Buie at Cerro Tololo.
John Herrington (b. 1958) is a former NASA astronaut and a member of the Chickasaw Nation. Herrington was a mission specialist for the 16th space shuttle flight to the International Space Station and he performed three space walks during the mission.
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 2021-01-27Last Updated: 2021-02-23

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Alternate Designations
 2002 GZ28 = 1995 SJ18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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