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 ]  
541177 (2011 BQ4)
Classification: Main-belt Asteroid          SPK-ID: 2541177
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06916206815545572 6.2821e-08  
a 3.111341830806517 4.6202e-08 au
q 2.896154995049356 1.7844e-07 au
i 8.618968362377021 5.053e-06 deg
node 288.1095184547647 4.3268e-05 deg
peri 333.0534852585109 6.9673e-05 deg
M 153.1206812829955 5.9862e-05 deg
tp 2458347.888137453654
(2018-Aug-17.38813745)
0.00032728 TDB
period 2004.564425555304
5.49
4.465e-05
1.222e-07
d
yr
n .179590137094383 4.0002e-09 deg/d
Q 3.326528666563677 4.9397e-08 au
  Orbit Determination Parameters
   # obs. used (total)      184  
   data-arc span      6323 days (17.31 yr)  
   first obs. used      2003-09-20  
   last obs. used      2021-01-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55662  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 13:25:09  

Additional Information
 Earth MOID = 1.88169 au 
 Jupiter MOID = 1.79044 au 
 T_jup = 3.198 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.97   .32418 MPCxxxxx autocmod 2.8

541177 (2011 BQ4)          Discovered 2003-Sep-20 by NEAT at Palomar
Reference: Last Updated: 2019-12-13

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2021-Jun-21 17:41 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin