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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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1124963586458474 4.0184e-08  
a 2.557322208304162 1.2665e-08 au
q 2.269632771985786 1.0452e-07 au
i 13.5153338540556 5.1628e-06 deg
node 201.5139570895363 1.7087e-05 deg
peri 29.2569093886968 2.9384e-05 deg
M 53.45094959280974 2.5032e-05 deg
tp 2458778.716350055112
(2019-Oct-22.21635006)
0.00010315 TDB
period 1493.745472969111
4.09
1.1096e-05
3.038e-08
d
yr
n .2410049145015513 1.7903e-09 deg/d
Q 2.845011644622537 1.409e-08 au
  Orbit Determination Parameters
   # obs. used (total)      654  
   data-arc span      7710 days (21.11 yr)  
   first obs. used      1999-05-09  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62396  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-24 00:39:14  

Additional Information
 Earth MOID = 1.26993 au 
 Jupiter MOID = 2.14223 au 
 T_jup = 3.389 
[ show covariance matrix ]

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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