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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09270070552892061 4.8894e-08  
a 2.662893812399484 1.4232e-08 au
q 2.416041677241455 1.3651e-07 au
i 12.99923976140182 5.0166e-06 deg
node 352.6119390723361 1.9233e-05 deg
peri 139.7364962557005 3.4983e-05 deg
M 330.8106630972997 2.8203e-05 deg
tp 2459129.191815621376
(2020-Oct-06.69181562)
0.00012446 TDB
period 1587.191027262055
4.35
1.2725e-05
3.484e-08
d
yr
n .2268157983610891 1.8184e-09 deg/d
Q 2.909745947557513 1.5552e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:21:34  

Additional Information
 Earth MOID = 1.44236 au 
 Jupiter MOID = 2.11606 au 
 T_jup = 3.342 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457059.5 (2015-Feb-06.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09174363563284588 4.9356e-08  
q 2.418344828286084 1.3765e-07 au
tp 2457545.333536343614
(2016-Jun-05.83353634)
0.00012435 TDB
node 352.6514435848172 1.921e-05 deg
peri 140.3999122718805 3.5049e-05 deg
i 13.00787066528318 5.0185e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1052  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1998-11-25  
   last obs. used      2020-10-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52159  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:21:34  

Additional Information
 Jupiter MOID = 2.11606 au 
 T_jup = 3.342 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.436003403163685E-15 -6.769732499098338E-15 1.134418919238068E-12 -1.105402491268636E-14 4.127078928906659E-13 -2.732149188846384E-15
q -6.769732499098338E-15 1.894644985068356E-14 -3.010013029664786E-12 2.926166306062254E-14 -1.123436567243079E-12 8.587552045492504E-15
tp 1.134418919238068E-12 -3.010013029664786E-12 1.546178698999604E-8 -4.33239579626027E-11 3.643851066902102E-9 2.102184458650001E-11
node -1.105402491268636E-14 2.926166306062254E-14 -4.33239579626027E-11 3.690252306119589E-10 -3.69699359900032E-10 2.127355330971767E-11
peri 4.127078928906659E-13 -1.123436567243079E-12 3.643851066902102E-9 -3.69699359900032E-10 1.228406793536519E-9 -1.617160451169578E-11
i -2.732149188846384E-15 8.587552045492504E-15 2.102184458650001E-11 2.127355330971767E-11 -1.617160451169578E-11 2.518550626433749E-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)  
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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