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79911 (1999 CK)
Classification: Main-belt Asteroid          SPK-ID: 2079911
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09267650296473552 4.4057e-08  
a 2.662879643906765 1.2784e-08 au
q 2.416093270693506 1.2153e-07 au
i 13.00004009108944 4.9288e-06 deg
node 352.6074266388334 1.8084e-05 deg
peri 139.6696764083763 3.427e-05 deg
M 16.2325610432595 2.7279e-05 deg
tp 2459128.933417744556
(2020-Oct-06.43341774)
0.00012027 TDB
period 1587.178359797906
4.35
1.143e-05
3.129e-08
d
yr
n .2268176086056506 1.6333e-09 deg/d
Q 2.909666017120025 1.3969e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-11-25  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:20:46  

Additional Information
 Earth MOID = 1.44234 au 
 Jupiter MOID = 2.11549 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457261.5 (2015-Aug-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09176838493512066 4.4604e-08  
q 2.417885320137577 1.2289e-07 au
tp 2457545.681314833175
(2016-Jun-06.18131483)
0.00012119 TDB
node 352.6518675771587 1.8065e-05 deg
peri 140.5009381202882 3.4287e-05 deg
i 13.00811920136346 4.9307e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1133  
   data-arc span      8091 days (22.15 yr)  
   first obs. used      1998-11-25  
   last obs. used      2021-01-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51765  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:20:46  

Additional Information
 Jupiter MOID = 2.11549 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.989556106444075E-15 -5.459608622963316E-15 1.704974487739748E-12 -1.361908784659101E-14 5.015063478787164E-13 -8.20133263665962E-16
q -5.459608622963316E-15 1.51020012253931E-14 -4.682443863154149E-12 3.582502481516349E-14 -1.382637953723599E-12 2.839352222591796E-15
tp 1.704974487739748E-12 -4.682443863154149E-12 1.468595747869588E-8 -5.79664747401112E-11 3.537722103322834E-9 1.602689179708885E-11
node -1.361908784659101E-14 3.582502481516349E-14 -5.79664747401112E-11 3.263601374761398E-10 -3.314967490841256E-10 1.526366745277431E-11
peri 5.015063478787164E-13 -1.382637953723599E-12 3.537722103322834E-9 -3.314967490841256E-10 1.175597913321206E-9 -1.123520337391644E-11
i -8.20133263665962E-16 2.839352222591796E-15 1.602689179708885E-11 1.526366745277431E-11 -1.123520337391644E-11 2.431157690824923E-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 14.51   n/a E2021B10  
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 ]
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