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173567 (2001 BY9)
Classification: Main-belt Asteroid          SPK-ID: 2173567
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1363065423611801 3.4585e-08  
a 2.298121938711422 8.5872e-09 au
q 1.984872883321296 8.3814e-08 au
i 2.065050315333869 3.6932e-06 deg
node 173.6607712332938 0.00010917 deg
peri 203.7876458022491 0.00011036 deg
M 287.3541121484775 1.6258e-05 deg
tp 2459257.283175399064
(2021-Feb-11.78317540)
5.7691e-05 TDB
period 1272.500700006595
3.48
7.1323e-06
1.953e-08
d
yr
n .2829075064541295 1.5857e-09 deg/d
Q 2.611370994101548 9.7577e-09 au
  Orbit Determination Parameters
   # obs. used (total)      711  
   data-arc span      7205 days (19.73 yr)  
   first obs. used      2001-01-16  
   last obs. used      2020-10-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51876  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 10:19:56  

Additional Information
 Earth MOID = .986597 au 
 Jupiter MOID = 2.84828 au 
 T_jup = 3.580 
[ 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 16.7   n/a MPO385762  
diameter diameter 1.471 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.187   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

173567 (2001 BY9)          Discovered 2001-Jan-16 by Spacewatch at Kitt Peak
Reference: 20080122/Numbers.arcLast Updated: 2008-01-28

Alternate Designations
 2001 BY9 = 2003 SP213 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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