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77185 Cherryh (2001 FE9)
Classification: Main-belt Asteroid          SPK-ID: 2077185
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1741956480355544 7.2784e-08  
a 2.597642120829383 2.9609e-08 AU
q 2.145144168227056 1.9596e-07 AU
i 3.146987123421182 9.1258e-06 deg
node 12.66406317129181 0.00017615 deg
peri 231.6126245132424 0.00017897 deg
M 53.02834490824108 3.3531e-05 deg
tp 2456775.245759690356
(2014-Apr-27.74575969)
0.00014148 JED
period 1529.210965414642
4.19
2.6146e-05
7.158e-08
d
yr
n .235415523522869 4.0251e-09 deg/d
Q 3.050140073431709 3.4767e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      267  
   data-arc span      8526 days (23.34 yr)  
   first obs. used      1990-10-24  
   last obs. used      2014-02-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57462  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 14:33:57  

Additional Information
 Earth MOID = 1.13543 AU 
 T_jup = 3.393 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.9 mag n/a MPO263924  

77185 Cherryh           Discovered 2001 Mar. 20 by D. Wells and A. Cruz at Needville.
C. J. Cherryh (b. 1942), of Spokane, Washington, is the visionary author of more than 40 novels and three-time winner of the prestigious Hugo Award. She has challenged us to be worthy of the stars by imagining how mankind might grow to live among them.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040713/MPCPages.arcLast Updated: 2004-07-14

[ show close-approach data ]
Alternate Designations
 2001 FE9 = 1998 TG27 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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