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91140 (1998 LW1)
Classification: Main-belt Asteroid          SPK-ID: 2091140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05335223411582964 4.9456e-08  
a 2.747818569128363 1.8964e-08 au
q 2.601216309520403 1.3765e-07 au
i 9.281720215666256 4.7148e-06 deg
node 90.81043341340433 3.3368e-05 deg
peri 220.23828613372 5.7031e-05 deg
M 329.3585723662222 4.8522e-05 deg
tp 2459538.107743729745
(2021-Nov-19.60774373)
0.00022451 TDB
period 1663.721036499985
4.56
1.7223e-05
4.715e-08
d
yr
n .2163824295672439 2.2401e-09 deg/d
Q 2.894420828736324 1.9976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      787  
   data-arc span      9294 days (25.45 yr)  
   first obs. used      1995-12-20  
   last obs. used      2021-05-31  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57887  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 08:55:56  

Additional Information
 Earth MOID = 1.59271 au 
 Jupiter MOID = 2.25096 au 
 T_jup = 3.326 
[ 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 14.99   n/a E2020-QM9  

91140 (1998 LW1)          Discovered 1998-Jun-01 by Elst, E. W. at La Silla
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 LW1 = 2002 HO1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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