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JPL Small-Body Database Browser
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11645 (1997 BY1)
Classification: Main-belt Asteroid          SPK-ID: 2011645
[ 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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1840232769651795 4.326e-08  
a 2.551427476515857 1.4257e-08 au
q 2.081905431348411 1.1244e-07 au
i 12.98940672049958 5.898e-06 deg
node 131.3207680216119 1.8801e-05 deg
peri 238.3145172840159 2.5718e-05 deg
M 13.30976110294036 2.1119e-05 deg
tp 2458945.464739213001
(2020-Apr-05.96473921)		 8.7067e-05 TDB
period 1488.583734154518
4.08		 1.2477e-05
3.416e-08		 d
yr
n .2418406111393337 2.027e-09 deg/d
Q 3.020949521683304 1.688e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1310  
   data-arc span      10172 days (27.85 yr)  
   first obs. used      1991-10-10  
   last obs. used      2019-08-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5342  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:10:14  

Additional Information
 Earth MOID = 1.11059 au 
 Jupiter MOID = 2.50306 au 
 T_jup = 3.381 
[ 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 13.8   n/a MPO302137  
diameter diameter 8.871 km 0.092 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.098   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11645 (1997 BY1)          Discovered 1997-Jan-29 by Kobayashi, T. at Oizumi
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1997 BY1 = 1991 TA2 = 1993 CE 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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