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
JPL Small-Body Database Browser
Search: [ help ]  
79911 (1999 CK)
Classification: Main-belt Asteroid          SPK-ID: 2079911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09270070641297619 4.8863e-08  
a 2.66289381212441 1.422e-08 au
q 2.416041674637734 1.3641e-07 au
i 12.99923977254491 5.0154e-06 deg
node 352.6119391557939 1.9226e-05 deg
peri 139.7364959096427 3.4975e-05 deg
M 330.8106634992325 2.819e-05 deg
tp 2459129.191813829367
(2020-Oct-06.69181383)
0.0001244 TDB
period 1587.191027016122
4.35
1.2714e-05
3.481e-08
d
yr
n .2268157983962338 1.8168e-09 deg/d
Q 2.909745949611086 1.5538e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1056  
   data-arc span      8023 days (21.97 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:49  

Additional Information
 Earth MOID = 1.44236 au 
 Jupiter MOID = 2.11606 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457061.5 (2015-Feb-08.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0917445096794879 4.9326e-08  
q 2.418337500863085 1.3755e-07 au
tp 2457545.337438441852
(2016-Jun-05.83743844)
0.0001243 TDB
node 352.6514595967363 1.9202e-05 deg
peri 140.4011150428781 3.504e-05 deg
i 13.0078800401458 5.0173e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1056  
   data-arc span      8023 days (21.97 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52075  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:13:49  

Additional Information
 Jupiter MOID = 2.11606 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.433042663883154E-15 -6.760912712558031E-15 1.140238811080975E-12 -1.107242644917665E-14 4.137340495951434E-13 -2.715159076683234E-15
q -6.760912712558031E-15 1.89201844187337E-14 -3.027275567826904E-12 2.931116239157274E-14 -1.126472369046535E-12 8.536163411835266E-15
tp 1.140238811080975E-12 -3.027275567826904E-12 1.544978001220236E-8 -4.339153808177985E-11 3.641808961689901E-9 2.096743029315043E-11
node -1.107242644917665E-14 2.931116239157274E-14 -4.339153808177985E-11 3.687346340291245E-10 -3.694323212156044E-10 2.121448171499398E-11
peri 4.137340495951434E-13 -1.126472369046535E-12 3.641808961689901E-9 -3.694323212156044E-10 1.22779101550264E-9 -1.612438209181483E-11
i -2.715159076683234E-15 8.536163411835266E-15 2.096743029315043E-11 2.121448171499398E-11 -1.612438209181483E-11 2.517335112014848E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO502637  
diameter diameter 3.814 km 0.618 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 25.5219 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 0.278   0.051 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

79911 (1999 CK)          Discovered 1999-Feb-04 by Kobayashi, T. at Oizumi
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

Alternate Designations
 1999 CK = 2001 QS284 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-17 16:08 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin