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52872 Okyrhoe (1998 SG35)
Classification: Centaur          SPK-ID: 2052872
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 50 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3069257429117843 2.8801e-07  
a 8.341878397817386 2.6416e-06 AU
q 5.781541173287519 8.1051e-07 AU
i 15.66199413913199 1.0206e-05 deg
node 173.0506723154634 3.194e-05 deg
peri 337.631685037017 3.7781e-05 deg
M 102.7432802395133 4.6725e-05 deg
tp 2454488.930876643044
(2008-Jan-23.43087664)
0.00036203 JED
period 8800.233770040544
24.09
0.0041802
1.144e-05
d
yr
n .04090800419706821 1.9432e-08 deg/d
Q 10.90221562234725 3.4524e-06 AU
  Orbit Determination Parameters
   # obs. used (total)      507  
   data-arc span      5393 days (14.77 yr)  
   first obs. used      1998-09-13  
   last obs. used      2013-06-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52886  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 08:27:10  

Additional Information
 Earth MOID = 4.79883 AU 
 T_jup = 2.944 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.8 mag n/a MPO263768  
rotation period rot_per 9.72 h n/a Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) [Result based on less than full coverage, so that the period may be wrong by 30 percent or so.]

52872 Okyrhoe           Discovered 1998 Sept. 19 by Spacewatch at Kitt Peak.
Okyrhoe was the daughter of Chiron and Chariklo. The name means "swift running" or "fast flowing". A prophet, she was changed into a mare by the gods as punishment for revealing their plans to humankind.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030614/MPCPages.arcLast Updated: 2005-04-26
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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