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JPL Small-Body Database Browser
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91369 (1999 JW90)
Classification: Main-belt Asteroid          SPK-ID: 2091369
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ 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 .1124963351522646 4.7712e-08  
a 2.557322214640525 1.442e-08 au
q 2.269632837689993 1.2687e-07 au
i 13.51533337963564 5.6771e-06 deg
node 201.5139574667674 1.7166e-05 deg
peri 29.25691781790035 3.0878e-05 deg
M 53.45093779065976 2.8098e-05 deg
tp 2458778.716398201409
(2019-Oct-22.21639820)
0.00011554 TDB
period 1493.745478520766
4.09
1.2634e-05
3.459e-08
d
yr
n .2410049136058323 2.0384e-09 deg/d
Q 2.845011591591057 1.6042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-05-09  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:28:34  

Additional Information
 Earth MOID = 1.26993 au 
 Jupiter MOID = 2.14223 au 
 T_jup = 3.389 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456751.5 (2014-Apr-04.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1123388493494872 4.7992e-08  
q 2.269845818190208 1.2767e-07 au
tp 2457283.228702350056
(2015-Sep-17.72870235)
0.00010826 TDB
node 201.6431417068662 1.7173e-05 deg
peri 28.59442418169975 3.0689e-05 deg
i 13.51336623782794 5.6751e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      634  
   data-arc span      7297 days (19.98 yr)  
   first obs. used      1999-05-09  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62769  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 22:28:34  

Additional Information
 Jupiter MOID = 2.14223 au 
 T_jup = 3.389 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.303259434001393E-15 -6.099552525594838E-15 -2.786693813855138E-12 -1.684652620062331E-14 -5.878785730521991E-13 3.853855102255962E-15
q -6.099552525594838E-15 1.629906268274463E-14 7.809953218460444E-12 4.647089004048613E-14 1.645368206112232E-12 -1.072960968834393E-14
tp -2.786693813855138E-12 7.809953218460444E-12 1.172127395171704E-8 2.044113648176545E-11 2.757376005461456E-9 -5.736653977511782E-12
node -1.684652620062331E-14 4.647089004048613E-14 2.044113648176545E-11 2.94922648470969E-10 -2.820102193673458E-10 -2.49465286942979E-11
peri -5.878785730521991E-13 1.645368206112232E-12 2.757376005461456E-9 -2.820102193673458E-10 9.418210456851189E-10 2.306125378885405E-11
i 3.853855102255962E-15 -1.072960968834393E-14 -5.736653977511782E-12 -2.49465286942979E-11 2.306125378885405E-11 3.220692366364967E-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 15.7   n/a MPO337939  

91369 (1999 JW90)          Discovered 1999-May-12 by LINEAR at Socorro
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1999 JW90 = 2000 SE95 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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