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91001 (1998 BY8)
Classification: Main-belt Asteroid          SPK-ID: 2091001
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .102210584814438 6.6587e-08  
a 2.535852369266967 1.0865e-08 au
q 2.276661415601112 1.7007e-07 au
i 12.2391208991195 6.4768e-06 deg
node 331.3682305551764 2.0549e-05 deg
peri 136.4445815973837 3.3235e-05 deg
M 214.2206999187241 2.4155e-05 deg
tp 2459597.779675361527
(2022-Jan-18.27967536)
9.936e-05 TDB
period 1474.974039594578
4.04
9.4795e-06
2.595e-08
d
yr
n .244072092346081 1.5686e-09 deg/d
Q 2.795043322932821 1.1976e-08 au
  Orbit Determination Parameters
   # obs. used (total)      992  
   data-arc span      8228 days (22.53 yr)  
   first obs. used      1998-01-18  
   last obs. used      2020-07-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54065  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 08:14:40  

Additional Information
 Earth MOID = 1.30789 au 
 Jupiter MOID = 2.2969 au 
 T_jup = 3.409 
[ 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 MPO250967  
diameter diameter 2.878 km 0.274 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.234   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

91001 (1998 BY8)          Discovered 1998-Jan-18 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1998 BY8 = 2000 QE6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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