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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 49 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3068757441223114 3.2525e-07  
a 8.339542290744996 3.0182e-06 AU
q 5.78033904463314 9.1097e-07 AU
i 15.66052279120515 1.132e-05 deg
node 173.0681053162749 3.528e-05 deg
peri 337.5590449626683 4.2619e-05 deg
M 94.64059403727079 4.9443e-05 deg
tp 2454487.973560683660
(2008-Jan-22.47356068)
0.0004107 JED
period 8796.537327587233
24.08
0.0047753
1.307e-05
d
yr
n .04092519437972338 2.2217e-08 deg/d
Q 10.89874553685685 3.9444e-06 AU
  Orbit Determination Parameters
   # obs. used (total)      509  
   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      .56036  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-06 05:24:07  

Additional Information
 Earth MOID = 4.7973 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. 2013-Sep-12) [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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