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52975 Cyllarus (1998 TF35)
Classification: Centaur          SPK-ID: 2052975
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3804737791294495 4.2149e-06  
a 26.06416378677723 0.00072104 au
q 16.14743289097316 0.00034276 au
i 12.64399133099452 2.1327e-05 deg
node 52.00726537324397 0.00014164 deg
peri 300.4676381788397 0.0028223 deg
M 83.1519770729695 0.0041736 deg
tp 2447774.263169039854
(1989-Sep-04.76316904)
0.09784 TDB
period 48603.11686394548
133.07
2.0168
0.005522
d
yr
n .007406932378590999 3.0736e-07 deg/d
Q 35.98089468258131 0.00099537 au
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      7773 days (21.28 yr)  
   first obs. used      1998-10-12  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .6822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:15:24  

Additional Information
 Earth MOID = 15.1617 au 
 Jupiter MOID = 11.279 au 
 T_jup = 4.239 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457535.5 (2016-May-27.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .377050296831405 4.4373e-06  
q 16.31173465269452 0.00034271 au
tp 2447768.598537010028
(1989-Aug-30.09853701)
0.10299 TDB
node 52.03965689274089 0.00014103 deg
peri 301.2046720202308 0.0028509 deg
i 12.64638113454982 2.1282e-05 deg
  Orbit Determination Parameters
   # obs. used (total)      84  
   data-arc span      7773 days (21.28 yr)  
   first obs. used      1998-10-12  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      2  
   norm. resid. RMS      .6822  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:15:24  

Additional Information
 Jupiter MOID = 11.279 au 
 T_jup = 4.239 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.968994774955609E-11 1.421423424114785E-9 4.447766348299159E-7 3.623512726397889E-11 1.204452778646031E-8 1.592691622852327E-11
q 1.421423424114785E-9 1.174534215560623E-7 3.492634721280108E-5 2.950184920339931E-9 9.743011249459556E-7 1.263939510665916E-9
tp 4.447766348299159E-7 3.492634721280108E-5 .01060690595207642 8.813159624456897E-7 .0002921396924527969 3.809181533268011E-7
node 3.623512726397889E-11 2.950184920339931E-9 8.813159624456897E-7 1.989033951479758E-8 5.186696339154514E-9 2.721706563740842E-9
peri 1.204452778646031E-8 9.743011249459556E-7 .0002921396924527969 5.186696339154514E-9 8.127902269949676E-6 7.920791492351544E-9
i 1.592691622852327E-11 1.263939510665916E-9 3.809181533268011E-7 2.721706563740842E-9 7.920791492351544E-9 4.529383143550129E-10

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.4   n/a MPO157273  

52975 Cyllarus           Discovered 1998 Oct. 12 by N. Danzl at Kitt Peak.
The centaur Cyllarus was severely wounded by a spear in a battle that finally caused his death. On seeing him wounded, his lover Hylonome committed suicide.
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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