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91038 (1998 FW8)
Classification: Main-belt Asteroid          SPK-ID: 2091038
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1262266628183044 3.9515e-08  
a 2.742082028276957 1.6819e-08 au
q 2.395958164673509 1.1507e-07 au
i 6.943032655989668 4.9291e-06 deg
node 41.22630346704822 3.2453e-05 deg
peri 292.4377067694497 3.8745e-05 deg
M 280.3145966841388 2.3496e-05 deg
tp 2459763.609281521225
(2022-Jul-03.10928152)
0.00010923 TDB
period 1658.51380363579
4.54
1.526e-05
4.178e-08
d
yr
n .2170618050997277 1.9971e-09 deg/d
Q 3.088205891880405 1.8943e-08 au
  Orbit Determination Parameters
   # obs. used (total)      798  
   data-arc span      9339 days (25.57 yr)  
   first obs. used      1995-11-20  
   last obs. used      2021-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51229  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:39:34  

Additional Information
 Earth MOID = 1.3962 au 
 Jupiter MOID = 2.29357 au 
 T_jup = 3.327 
[ 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 15.19   n/a MPO637237  
diameter diameter 5.512 km 0.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.058   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91038 (1998 FW8)          Discovered 1998-Mar-22 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 FW8 = 1995 WU32 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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