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 ]  
35686 (1999 BW18)
Classification: Main-belt Asteroid          SPK-ID: 2035686
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1505798713004131 5.0276e-08  
a 2.181589458509162 8.0366e-09 au
q 1.853085998616514 1.086e-07 au
i 6.787658527714735 4.8166e-06 deg
node 352.5268787181175 3.7647e-05 deg
peri 1.167063428747619 4.1052e-05 deg
M 203.1524269768891 1.8476e-05 deg
tp 2459113.282586670552
(2020-Sep-20.78258667)
6.1557e-05 TDB
period 1176.949873328281
3.22
6.5035e-06
1.781e-08
d
yr
n .3058753887129966 1.6902e-09 deg/d
Q 2.510092918401809 9.2467e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1082  
   data-arc span      10095 days (27.64 yr)  
   first obs. used      1991-09-13  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52754  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:55:14  

Additional Information
 Earth MOID = .847014 au 
 Jupiter MOID = 2.91127 au 
 T_jup = 3.656 
[ 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 15.5   n/a MPO436015  

35686 (1999 BW18)          Discovered 1999-Jan-16 by LINEAR at Socorro
Reference: 20020227/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 BW18 = 1991 RQ18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Oct-19 16:17 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin