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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 ]

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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04062993304026788 4.0095e-08  
a 2.679329665999193 1.7512e-08 au
q 2.570468681076842 1.1043e-07 au
i 1.012920712912704 5.2742e-06 deg
node 328.57280961 0.00029537 deg
peri 117.7022770255578 0.00030633 deg
M 248.8378954723619 8.1615e-05 deg
tp 2459891.143054593236
(2022-Nov-07.64305459)
0.00036473 TDB
period 1601.908315880177
4.39
1.5705e-05
4.3e-08
d
yr
n .2247319627666682 2.2033e-09 deg/d
Q 2.788190650921544 1.8224e-08 au
  Orbit Determination Parameters
   # obs. used (total)      499  
   data-arc span      9396 days (25.72 yr)  
   first obs. used      1995-09-18  
   last obs. used      2021-06-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57237  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 14:57:27  

Additional Information
 Earth MOID = 1.58685 au 
 Jupiter MOID = 2.28462 au 
 T_jup = 3.376 
[ show covariance matrix ]

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

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

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