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
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
11551 (1993 BR3)
Classification: Main-belt Asteroid          SPK-ID: 2011551
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1012185502139168 3.5038e-08  
a 2.616475651265297 1.112e-08 au
q 2.35163977917421 9.0826e-08 au
i 13.13950482763465 3.8114e-06 deg
node 120.4341830566015 1.7947e-05 deg
peri 8.096974732050606 2.8266e-05 deg
M 76.58249662399002 2.1663e-05 deg
tp 2458271.647995885569
(2018-Jun-02.14799589)
9.2509e-05 TDB
period 1545.871794470979
4.23
9.8546e-06
2.698e-08
d
yr
n .2328783029016953 1.4845e-09 deg/d
Q 2.881311523356385 1.2245e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1623  
   data-arc span      9709 days (26.58 yr)  
   first obs. used      1993-01-21  
   last obs. used      2019-08-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47485  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:09:55  

Additional Information
 Earth MOID = 1.36796 au 
 Jupiter MOID = 2.18448 au 
 T_jup = 3.363 
[ 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 13.7   n/a MPO344395  
diameter diameter 4.680 km 0.123 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 13.464 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.321   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11551 (1993 BR3)          Discovered 1993-Jan-21 by Urata, T. at Oohira
Reference: 19990928/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-05 15:34 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin