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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05299523552338757 5.0177e-08  
a 2.747414887793012 1.9802e-08 au
q 2.60181498873396 1.3901e-07 au
i 9.282436424769024 4.8624e-06 deg
node 90.81126156336299 3.3651e-05 deg
peri 220.2593172496518 5.7737e-05 deg
M 243.603108930353 4.8942e-05 deg
tp 2459538.303566063289
(2021-Nov-19.80356606)
0.00022713 TDB
period 1663.354424706554
4.55
1.7983e-05
4.923e-08
d
yr
n .2164301213576358 2.3399e-09 deg/d
Q 2.893014786852064 2.0852e-08 au
  Orbit Determination Parameters
   # obs. used (total)      762  
   data-arc span      8890 days (24.34 yr)  
   first obs. used      1995-12-20  
   last obs. used      2020-04-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57067  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:38:18  

Additional Information
 Earth MOID = 1.59379 au 
 Jupiter MOID = 2.25391 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 14.9   n/a MPO432449  

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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