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74263 (1998 SH89)
Classification: Main-belt Asteroid          SPK-ID: 2074263
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1086141690996686 4.2431e-08  
a 2.46067300308802 1.2307e-08 au
q 2.193409049431629 1.0063e-07 au
i 4.339976479423774 4.3317e-06 deg
node 326.0329677749224 4.6572e-05 deg
peri 250.2376488726136 5.179e-05 deg
M 357.6275916308314 2.0151e-05 deg
tp 2459009.791080657001
(2020-Jun-09.29108066)
7.8884e-05 TDB
period 1409.870695108196
3.86
1.0577e-05
2.896e-08
d
yr
n .2553425652785647 1.9156e-09 deg/d
Q 2.727936956744412 1.3643e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1067  
   data-arc span      7944 days (21.75 yr)  
   first obs. used      1998-09-16  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52696  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:49:17  

Additional Information
 Earth MOID = 1.19119 au 
 Jupiter MOID = 2.26081 au 
 T_jup = 3.478 
[ 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 MPO319935  

74263 (1998 SH89)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1998 SH89 = 2002 TF269 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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