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 ]  
523838 (1995 BQ13)
Classification: Main-belt Asteroid          SPK-ID: 2523838
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0678049881201841 1.2449e-07  
a 2.896672861392627 3.0727e-08 au
q 2.70026399243784 3.5152e-07 au
i 2.103620725480028 5.853e-06 deg
node 73.12471962013866 0.00028929 deg
peri 99.06407316393469 0.00029344 deg
M 16.69349757372484 4.69e-05 deg
tp 2458916.998853181687
(2020-Mar-08.49885318)
0.00023444 TDB
period 1800.725864776663
4.93
2.8653e-05
7.845e-08
d
yr
n .1999193808684752 3.1811e-09 deg/d
Q 3.093081730347414 3.2811e-08 au
  Orbit Determination Parameters
   # obs. used (total)      126  
   data-arc span      9212 days (25.22 yr)  
   first obs. used      1995-01-31  
   last obs. used      2020-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-22 07:44:07  

Additional Information
 Earth MOID = 1.7064 au 
 Jupiter MOID = 1.86947 au 
 T_jup = 3.284 
[ 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 16.9   n/a MPO441645  

523838 (1995 BQ13)          Discovered 1995-Jan-31 by Spacewatch at Kitt Peak
Reference: Last Updated: 2019-05-29

[ show close-approach data ]
Alternate Designations
 1995 BQ13 = 2008 WD21 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-26 13:09 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin