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14501 Tetsuokojima (1995 WA8)
Classification: Main-belt Asteroid          SPK-ID: 2014501
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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1443532872376465 3.0298e-08  
a 2.205580883870168 6.9618e-09 au
q 1.887198033014995 6.6815e-08 au
i 5.294496295703863 3.8814e-06 deg
node .450673133056926 3.7504e-05 deg
peri 39.53067229519374 4.016e-05 deg
M 318.3568799880523 1.6492e-05 deg
tp 2459534.896042092007
(2021-Nov-16.39604209)
5.5164e-05 TDB
period 1196.417923028538
3.28
5.6646e-06
1.551e-08
d
yr
n .3008982004287585 1.4247e-09 deg/d
Q 2.52396373472534 7.9668e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1302  
   data-arc span      12046 days (32.98 yr)  
   first obs. used      1988-08-16  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50017  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:16:06  

Additional Information
 Earth MOID = .89734 au 
 Jupiter MOID = 2.88479 au 
 T_jup = 3.642 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456710.5 (2014-Feb-22.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .144401793789952 3.0173e-08  
q 1.886913786387254 6.6546e-08 au
tp 2457142.467538581430
(2015-Apr-29.96753858)
5.0331e-05 TDB
node .5183403773783977 3.7519e-05 deg
peri 39.50160057444936 4.0194e-05 deg
i 5.294697264945338 3.8803e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1302  
   data-arc span      12046 days (32.98 yr)  
   first obs. used      1988-08-16  
   last obs. used      2021-08-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50017  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 21:16:06  

Additional Information
 Jupiter MOID = 2.88479 au 
 T_jup = 3.642 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.104178181027062E-16 -2.000154504864462E-15 -1.909398148357458E-13 -7.278762934478516E-16 -4.796541444661836E-14 1.347355524648157E-16
q -2.000154504864462E-15 4.428369501570203E-15 5.288158686641633E-13 1.702308652235714E-15 1.316558853254171E-13 -1.751807866113985E-16
tp -1.909398148357458E-13 5.288158686641633E-13 2.533233140776344E-9 2.558818252031859E-12 7.341827223732268E-10 5.545784492304094E-13
node -7.278762934478516E-16 1.702308652235714E-15 2.558818252031859E-12 1.407665781018358E-9 -1.40042001187132E-9 -2.221401139882973E-11
peri -4.796541444661836E-14 1.316558853254171E-13 7.341827223732268E-10 -1.40042001187132E-9 1.615526354530834E-9 2.225284690241092E-11
i 1.347355524648157E-16 -1.751807866113985E-16 5.545784492304094E-13 -2.221401139882973E-11 2.225284690241092E-11 1.505647001077355E-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 15.22   n/a MPO636283  
diameter diameter 2.457 km 0.394 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.293   0.148 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14501 Tetsuokojima           Discovered 1995 Nov. 29 by T. Kobayashi at Oizumi.
Tetsuo Kojima (b. 1945) is a Japanese amateur astronomer and an active member of Ota Astronomical Club.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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