+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   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.arc Last Updated: 2005-04-26 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2021-Jan-17 09:08 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin