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20042 (1993 CK1)
Classification: Main-belt Asteroid          SPK-ID: 2020042
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1230188398397482 4.479e-08  
a 2.583447358410048 1.1588e-08 au
q 2.265634661591382 1.1715e-07 au
i 8.541543374244036 4.9881e-06 deg
node 29.05161711305604 2.3623e-05 deg
peri 156.4930748120452 2.7686e-05 deg
M 274.8710231777193 1.5566e-05 deg
tp 2459755.151593317815
(2022-Jun-24.65159332)
6.6453e-05 TDB
period 1516.693591466033
4.15
1.0204e-05
2.794e-08
d
yr
n .2373584236299335 1.5969e-09 deg/d
Q 2.901260055228714 1.3013e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1849  
   data-arc span      23706 days (64.90 yr)  
   first obs. used      1956-05-08  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47618  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:18:19  

Additional Information
 Earth MOID = 1.26987 au 
 Jupiter MOID = 2.05523 au 
 T_jup = 3.397 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457275.5 (2015-Sep-10.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1220514465639615 4.5018e-08  
q 2.268815091124384 1.1768e-07 au
tp 2456722.737148283747
(2014-Mar-06.23714828)
6.2101e-05 TDB
node 29.10258423646562 2.3596e-05 deg
peri 156.8037882266779 2.7678e-05 deg
i 8.546007454738819 4.99e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1849  
   data-arc span      23706 days (64.90 yr)  
   first obs. used      1956-05-08  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47618  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:18:19  

Additional Information
 Jupiter MOID = 2.05523 au 
 T_jup = 3.397 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.026646989353099E-15 -5.277659193167359E-15 3.545098303848E-13 -3.489243513025868E-15 9.352052731402555E-14 1.675821831452925E-15
q -5.277659193167359E-15 1.384768203125706E-14 -8.740762808756003E-13 8.316954650093859E-15 -2.253488295101504E-13 -4.222388829124307E-15
tp 3.545098303848E-13 -8.740762808756003E-13 3.856494866603726E-9 -3.045915504535853E-12 9.072550686002894E-10 -2.398247799629783E-12
node -3.489243513025868E-15 8.316954650093859E-15 -3.045915504535853E-12 5.567690946754908E-10 -5.509323619131349E-10 -1.43970698416777E-11
peri 9.352052731402555E-14 -2.253488295101504E-13 9.072550686002894E-10 -5.509323619131349E-10 7.660723380520589E-10 1.373887125876734E-11
i 1.675821831452925E-15 -4.222388829124307E-15 -2.398247799629783E-12 -1.43970698416777E-11 1.373887125876734E-11 2.490035007553938E-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 14.07   n/a E2021B10  
diameter diameter 9.395 km 0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.047   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20042 (1993 CK1)          Discovered 1993-Feb-15 by Kushida, Y., Muramatsu, O. at Yatsugatake
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1993 CK1 = 1995 UZ38 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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