Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1840232945969836 4.1086e-08  
a 2.551427485006044 1.3182e-08 au
q 2.081905393289936 1.056e-07 au
i 12.98941013003049 5.7285e-06 deg
node 131.3207597613661 1.8618e-05 deg
peri 238.3145566103423 2.5073e-05 deg
M 13.30972673688595 1.937e-05 deg
tp 2458945.464881040379
(2020-Apr-05.96488104)		 7.9884e-05 TDB
period 1488.583741584684
4.08		 1.1536e-05
3.158e-08		 d
yr
n .2418406099322025 1.8742e-09 deg/d
Q 3.020949576722152 1.5608e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1434  
   data-arc span      10626 days (29.09 yr)  
   first obs. used      1991-10-10  
   last obs. used      2020-11-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5178  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:46:37  

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jan-19 03:34 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin