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26305 (1998 SH146)
Classification: Main-belt Asteroid          SPK-ID: 2026305
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1887171337593155 3.3644e-08  
a 2.270614317770582 8.9794e-09 au
q 1.842110491848054 7.6313e-08 au
i 6.714019125930371 4.6439e-06 deg
node 198.8964023656211 2.8926e-05 deg
peri 115.7598701242141 3.1469e-05 deg
M 168.4851373427719 1.183e-05 deg
tp 2458415.612176007302
(2018-Oct-24.11217601)
4.0515e-05 TDB
period 1249.722200771939
3.42
7.4132e-06
2.03e-08
d
yr
n .2880640191697261 1.7088e-09 deg/d
Q 2.699118143693111 1.0674e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1142  
   data-arc span      10367 days (28.38 yr)  
   first obs. used      1991-09-14  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5336  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 00:42:23  

Additional Information
 Earth MOID = .840871 au 
 Jupiter MOID = 2.61662 au 
 T_jup = 3.580 
[ show covariance matrix ]

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 15.3   n/a MPO358875  
diameter diameter 2.724 km 0.251 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.238   0.063 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26305 (1998 SH146)          Discovered 1998-Sep-20 by Elst, E. W. at La Silla
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SH146 = 1991 RL36 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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