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58919 (1998 KF55)
Classification: Main-belt Asteroid          SPK-ID: 2058919
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2336983942175513 4.9607e-08  
a 3.13339567708299 2.0244e-08 au
q 2.401126138900478 1.6405e-07 au
i 15.44079307118355 6.7814e-06 deg
node 213.6034255345604 1.6188e-05 deg
peri 81.3475700850291 2.1852e-05 deg
M 316.4167649461967 1.526e-05 deg
tp 2459245.766508938069
(2021-Jan-31.26650894)
8.6973e-05 TDB
period 2025.915311442665
5.55
1.9633e-05
5.375e-08
d
yr
n .1776974575228626 1.7221e-09 deg/d
Q 3.865665215265501 2.4975e-08 au
  Orbit Determination Parameters
   # obs. used (total)      823  
   data-arc span      10348 days (28.33 yr)  
   first obs. used      1992-05-07  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:48:59  

Additional Information
 Earth MOID = 1.44516 au 
 Jupiter MOID = 1.62892 au 
 T_jup = 3.115 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457317.5 (2015-Oct-22.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2323314165063198 4.961e-08  
q 2.407449635094315 1.6408e-07 au
tp 2457218.969435676062
(2015-Jul-15.46943568)
8.0231e-05 TDB
node 213.6166492651979 1.6183e-05 deg
peri 81.38185138931256 2.191e-05 deg
i 15.43676115803355 6.7799e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      823  
   data-arc span      10348 days (28.33 yr)  
   first obs. used      1992-05-07  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55919  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:48:59  

Additional Information
 Jupiter MOID = 1.62892 au 
 T_jup = 3.115 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.461190951629648E-15 -8.112596222089744E-15 -1.37392167640502E-12 1.363387321985351E-14 -1.571478198352346E-13 -6.484054603896267E-15
q -8.112596222089744E-15 2.692063657491415E-14 4.640368017799273E-12 -4.641795455461632E-14 5.440597200968843E-13 2.405251576595292E-14
tp -1.37392167640502E-12 4.640368017799273E-12 6.43695239918561E-9 -2.536303873332428E-11 1.189022131910215E-9 8.081399889700079E-12
node 1.363387321985351E-14 -4.641795455461632E-14 -2.536303873332428E-11 2.618844586355411E-10 -2.560163163420448E-10 5.468674815471166E-12
peri -1.571478198352346E-13 5.440597200968843E-13 1.189022131910215E-9 -2.560163163420448E-10 4.800460033989596E-10 -3.883463464757703E-12
i -6.484054603896267E-15 2.405251576595292E-14 8.081399889700079E-12 5.468674815471166E-12 -3.883463464757703E-12 4.596732660553575E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.3   n/a MPO302383  
diameter diameter 3.434 km 0.213 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.313   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

58919 (1998 KF55)          Discovered 1998-May-23 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 KF55 = 1999 TA104 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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