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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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3803903124784848 7.4264e-05  
a 26.05582042736673 0.0055038 au
q 16.14443875311741 0.0015741 au
i 12.64436917070065 0.0002957 deg
node 52.00719740846974 0.00017786 deg
peri 300.4390551085543 0.016611 deg
M 83.20058900180287 0.031932 deg
tp 2447773.093277561935
(1989-Sep-03.59327756)
0.75331 TDB
period 48579.781328112
133.00
15.392
0.04214
d
yr
n .007410490334827348 2.348e-06 deg/d
Q 35.96720210161605 0.0075974 au
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      3636 days (9.95 yr)  
   first obs. used      1998-10-12  
   last obs. used      2008-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .65665  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 18:36:56  

Additional Information
 Earth MOID = 15.1588 au 
 Jupiter MOID = 11.2761 au 
 T_jup = 4.238 
[ hide covariance matrix ]
Orbital Elements at Epoch 2451450.5 (1999-Sep-29.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .3840388903124076 7.6909e-05  
q 16.28242069922923 0.0015544 au
tp 2447825.367139110343
(1989-Oct-25.86713911)
0.75708 TDB
node 51.95687065970862 0.00017799 deg
peri 301.7147782513947 0.016349 deg
i 12.61439801521013 0.00029494 deg
  Orbit Determination Parameters
   # obs. used (total)      29  
   data-arc span      3636 days (9.95 yr)  
   first obs. used      1998-10-12  
   last obs. used      2008-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      4  
   norm. resid. RMS      .65665  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-11 18:36:56  

Additional Information
 Jupiter MOID = 11.2761 au 
 T_jup = 4.238 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.914946706652198E-9 1.065886654236768E-7 5.615025205547855E-5 2.995649272507611E-9 1.176914588427371E-6 1.283626012432287E-10
q 1.065886654236768E-7 2.416079747329353E-6 .001150307383921421 6.641472361738867E-8 2.524129408259324E-5 8.642879010539341E-9
tp 5.615025205547855E-5 .001150307383921421 .5731765301892729 3.18181269537122E-5 .01231905819974338 2.976545797141032E-6
node 2.995649272507611E-9 6.641472361738867E-8 3.18181269537122E-5 3.167990042125933E-8 6.668861944626528E-7 -6.868976509199304E-9
peri 1.176914588427371E-6 2.524129408259324E-5 .01231905819974338 6.668861944626528E-7 .0002672994404714635 8.38470850250823E-8
i 1.283626012432287E-10 8.642879010539341E-9 2.976545797141032E-6 -6.868976509199304E-9 8.38470850250823E-8 8.699198743970891E-8

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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