Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP

Significant website upgrade scheduled for September 27. More details available here.

JPL Small-Body Database Browser
Search: [ help ]  
85931 (1999 CK123)
Classification: Main-belt Asteroid          SPK-ID: 2085931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1563120830249294 3.3934e-08  
a 3.097874064975815 1.8802e-08 au
q 2.61363891693054 1.0545e-07 au
i 16.22545559406121 4.0551e-06 deg
node 50.44678628942297 1.5565e-05 deg
peri 18.31872707053344 2.3265e-05 deg
M 86.49150205701044 1.5507e-05 deg
tp 2458918.018662186263
(2020-Mar-09.51866219)
8.5791e-05 TDB
period 1991.563072860099
5.45
1.8132e-05
4.964e-08
d
yr
n .1807625401906058 1.6457e-09 deg/d
Q 3.582109213021091 2.1741e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1344  
   data-arc span      8619 days (23.60 yr)  
   first obs. used      1997-10-29  
   last obs. used      2021-06-04  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46735  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:51:42  

Additional Information
 Earth MOID = 1.6313 au 
 Jupiter MOID = 1.81462 au 
 T_jup = 3.143 
[ show covariance matrix ]

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 13.98   n/a MPO637178  
diameter diameter 9.165 km 0.110 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 18.5055 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
geometric albedo albedo 0.084   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85931 (1999 CK123)          Discovered 1999-Feb-11 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Sep-26 09:58 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin