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JPL Small-Body Database Browser
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568 Cheruskia (A905 OD)
Classification: Main-belt Asteroid          SPK-ID: 2000568
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 71 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1682244511773108 3.2998e-08  
a 2.882455898726796 9.0339e-09 au
q 2.397556337120679 9.7665e-08 au
i 18.39400885185683 3.8013e-06 deg
node 249.785396847852 1.3245e-05 deg
peri 174.1863893632131 1.858e-05 deg
M 5.810152301753901 1.292e-05 deg
tp 2458571.651220128461
(2019-Mar-29.15122013)
6.4116e-05 TDB
period 1787.485114739428
4.89
8.4032e-06
2.301e-08
d
yr
n .2014002785430072 9.4681e-10 deg/d
Q 3.367355460332913 1.0554e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2481  
   data-arc span      41243 days (112.92 yr)  
   first obs. used      1907-01-06  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39462  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:45:14  

Additional Information
 Earth MOID = 1.41166 au 
 Jupiter MOID = 1.96134 au 
 T_jup = 3.198 
[ hide covariance matrix ]
Orbital Elements at Epoch 2455682.5 (2011-May-01.0) TDB
Reference: JPL 71 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1660798776183695 3.3123e-08  
q 2.405326870394693 9.7891e-08 au
tp 2454996.646773269641
(2009-Jun-14.14677327)
6.3481e-05 TDB
node 249.9042402571422 1.3242e-05 deg
peri 174.2868145398305 1.8686e-05 deg
i 18.38824985335794 3.8004e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2481  
   data-arc span      41243 days (112.92 yr)  
   first obs. used      1907-01-06  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .39462  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 20:45:14  

Additional Information
 Jupiter MOID = 1.96134 au 
 T_jup = 3.198 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.097151629749856E-15 -3.233603994931121E-15 -6.060710008161713E-14 1.759113215106455E-15 -5.503089586015054E-15 -3.474683827976126E-15
q -3.233603994931121E-15 9.582575658715837E-15 1.531640037922453E-13 -7.329017494127516E-15 1.564436373921581E-14 1.034944961945265E-14
tp -6.060710008161713E-14 1.531640037922453E-13 4.029802059659759E-9 1.517174907740537E-11 8.582706195699789E-10 5.983898603819471E-12
node 1.759113215106455E-15 -7.329017494127516E-15 1.517174907740537E-11 1.753529139295654E-10 -1.632287803684775E-10 -2.63619604299234E-12
peri -5.503089586015054E-15 1.564436373921581E-14 8.582706195699789E-10 -1.632287803684775E-10 3.491533756588049E-10 3.815615054308435E-12
i -3.474683827976126E-15 1.034944961945265E-14 5.983898603819471E-12 -2.63619604299234E-12 3.815615054308435E-12 1.444308514770105E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 9.6   n/a MPO502158  
diameter diameter 71.224 km 0.906 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 13.209 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Warner, B.D. (2009) Minor Planet Bull. 36, 7-13.]
[Behrend, R. (2018) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.056   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

568 Cheruskia (A905 OD)          Discovered 1905-Jul-26 by Gotz, P. at Heidelberg
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 A905 OD = 1956 DA = A891 XB 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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