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JPL Small-Body Database Browser
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91151 (1998 QJ39)
Classification: Main-belt Asteroid          SPK-ID: 2091151
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1819262074348911 5.1208e-08  
a 3.147344753970865 3.1233e-08 au
q 2.574760259390845 1.5302e-07 au
i 17.12324100730767 7.3079e-06 deg
node 142.3768316762806 1.8527e-05 deg
peri 286.4215486484762 3.0691e-05 deg
M 256.7913966498218 2.1222e-05 deg
tp 2459585.193550185690
(2022-Jan-05.69355019)
0.00012025 TDB
period 2039.458642344711
5.58
3.0359e-05
8.312e-08
d
yr
n .1765174309129983 2.6276e-09 deg/d
Q 3.719929248550884 3.6916e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      7217 days (19.76 yr)  
   first obs. used      1998-08-17  
   last obs. used      2018-05-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56035  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-May-31 15:40:24  

Additional Information
 Earth MOID = 1.65125 au 
 Jupiter MOID = 1.75586 au 
 T_jup = 3.115 
[ 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 13.9   n/a MPO436409  

91151 (1998 QJ39)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1998 QJ39 = 2000 AQ190 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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