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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2168950505058031 4.5087e-08  
a 2.451048754370025 1.1551e-08 au
q 1.919428410998753 1.1294e-07 au
i 10.52123847231767 5.7401e-06 deg
node 226.3399959691124 2.693e-05 deg
peri 8.666894872947216 2.932e-05 deg
M 317.8032976412722 1.3011e-05 deg
tp 2459364.786683915507
(2021-May-30.28668392)
5.105e-05 TDB
period 1401.607303499386
3.84
9.9078e-06
2.713e-08
d
yr
n .2568479766773401 1.8156e-09 deg/d
Q 2.982669097741298 1.4056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      8369 days (22.91 yr)  
   first obs. used      1998-04-25  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:18:33  

Additional Information
 Earth MOID = .907779 au 
 Jupiter MOID = 2.0189 au 
 T_jup = 3.440 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457124.5 (2015-Apr-12.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2173177499008345 4.5003e-08  
q 1.918099502102782 1.1273e-07 au
tp 2456561.846213529382
(2013-Sep-26.34621353)
4.7805e-05 TDB
node 226.3667819576921 2.694e-05 deg
peri 8.656040539971027 2.9333e-05 deg
i 10.51999887264534 5.7407e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      8369 days (22.91 yr)  
   first obs. used      1998-04-25  
   last obs. used      2021-03-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .58706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 07:18:33  

Additional Information
 Jupiter MOID = 2.0189 au 
 T_jup = 3.440 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.025240478965641E-15 -5.057773125782389E-15 -1.115336666166972E-12 -3.081625971855043E-14 -2.660841342477021E-13 -4.366157990406544E-16
q -5.057773125782389E-15 1.270779004378321E-14 2.715466696767106E-12 7.530063519232055E-14 6.563581651913512E-13 1.567368594396496E-15
tp -1.115336666166972E-12 2.715466696767106E-12 2.285299521078855E-9 2.999674459253682E-11 5.813893619095535E-10 -7.948403787257564E-13
node -3.081625971855043E-14 7.530063519232055E-14 2.999674459253682E-11 7.25771533064299E-10 -7.053356273130003E-10 -8.13154479761705E-11
peri -2.660841342477021E-13 6.563581651913512E-13 5.813893619095535E-10 -7.053356273130003E-10 8.604368581833524E-10 7.978722736301882E-11
i -4.366157990406544E-16 1.567368594396496E-15 -7.948403787257564E-13 -8.13154479761705E-11 7.978722736301882E-11 3.295585800589124E-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 16.07   n/a MPCxxxxx  
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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