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10370 Hylonome (1995 DW2)
Classification: Centaur          SPK-ID: 2010370
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2448879686897357 4.4462e-05  
a 25.17117186449708 0.0018664 au
q 19.00705471706016 0.00029692 au
i 4.141489586435858 0.00013179 deg
node 178.2273981702973 0.00065671 deg
peri 7.356178328351357 0.0048922 deg
M 72.56072972910758 0.010822 deg
tp 2449903.288296806062
(1995-Jul-04.78829681)
0.3667 TDB
period 46126.82680625216
126.29
5.1304
0.01405
d
yr
n .007804568944491204 8.6806e-07 deg/d
Q 31.33528901193399 0.0023235 au
  Orbit Determination Parameters
   # obs. used (total)      78  
   data-arc span      5576 days (15.27 yr)  
   first obs. used      1995-03-09  
   last obs. used      2010-06-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      3  
   norm. resid. RMS      .48232  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 22:03:05  

Additional Information
 Earth MOID = 18.0086 au 
 Jupiter MOID = 13.5456 au 
 T_jup = 4.460 
[ 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 8.6   n/a MPO186498  

10370 Hylonome           Discovered 1995 Feb. 27 by D. C. Jewitt and J. X. Luu at Mauna Kea.
Fairest of all the female centaurs, the beautiful and civilized Hylonome was in love with the handsome Cyllaros, who was accidentally killed by a javelin, thrown at a wedding. On witnessing this, Hylonome threw herself on the javelin and died.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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