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JPL Small-Body Database Browser
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74055 (1998 KY6)
Classification: Main-belt Asteroid          SPK-ID: 2074055
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2169886568530524 4.7255e-08  
a 2.451361226359495 1.2887e-08 au
q 1.919443646390097 1.1943e-07 au
i 10.52117734014181 5.8302e-06 deg
node 226.3476501521249 2.8222e-05 deg
peri 8.634258875059658 3.0958e-05 deg
M 266.4732935190161 1.5031e-05 deg
tp 2459364.702175705653
(2021-May-30.20217571)
5.9889e-05 TDB
period 1401.875337935625
3.84
1.1055e-05
3.027e-08
d
yr
n .2567988681005896 2.0251e-09 deg/d
Q 2.983278806328892 1.5684e-08 au
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      7895 days (21.62 yr)  
   first obs. used      1998-04-25  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60359  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:22  

Additional Information
 Earth MOID = .909103 au 
 Jupiter MOID = 2.01936 au 
 T_jup = 3.440 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457020.5 (2014-Dec-29.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .217237382330081 4.7146e-08  
q 1.918468795452176 1.1914e-07 au
tp 2456561.844285221083
(2013-Sep-26.34428522)
5.2742e-05 TDB
node 226.3684578672925 2.8235e-05 deg
peri 8.671530116196061 3.0982e-05 deg
i 10.51930886650263 5.8308e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      511  
   data-arc span      7895 days (21.62 yr)  
   first obs. used      1998-04-25  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60359  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 07:24:22  

Additional Information
 Jupiter MOID = 2.01936 au 
 T_jup = 3.440 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.222744548073259E-15 -5.598989663062635E-15 -1.427960008721729E-12 -3.039219083004157E-14 -3.474409671196045E-13 -7.544459086126057E-16
q -5.598989663062635E-15 1.419458137078402E-14 3.57226021240889E-12 7.589885537885802E-14 8.769270882775717E-13 2.369740101035438E-15
tp -1.427960008721729E-12 3.57226021240889E-12 2.781749889162354E-9 3.610312554488329E-11 7.037645034863989E-10 -6.246679417256488E-13
node -3.039219083004157E-14 7.589885537885802E-14 3.610312554488329E-11 7.971987379587599E-10 -7.740862190397082E-10 -8.756368246490476E-11
peri -3.474409671196045E-13 8.769270882775717E-13 7.037645034863989E-10 -7.740862190397082E-10 9.598925598688618E-10 8.597346918623031E-11
i -7.544459086126057E-16 2.369740101035438E-15 -6.246679417256488E-13 -8.756368246490476E-11 8.597346918623031E-11 3.399845724519918E-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 16.0   n/a MPO412633  
diameter diameter 3.626 km 0.203 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.064   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

74055 (1998 KY6)          Discovered 1998-May-22 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1998 KY6 = 2002 LU26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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