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 ]  
382181 (2012 KW4)
Classification: Main-belt Asteroid          SPK-ID: 2382181
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1976525473661487 5.2148e-08  
a 2.274712936859074 1.9122e-08 au
q 1.825110130362145 1.2364e-07 au
i 25.09858094503251 6.4779e-06 deg
node 123.6292525767602 1.4712e-05 deg
peri 192.3966474588943 2.4395e-05 deg
M 306.1003458454232 1.7964e-05 deg
tp 2458788.116833117695
(2019-Oct-31.61683312)
6.2297e-05 TDB
period 1253.10748244634
3.43
1.5801e-05
4.326e-08
d
yr
n .2872858115069278 3.6225e-09 deg/d
Q 2.724315743356004 2.2902e-08 au
  Orbit Determination Parameters
   # obs. used (total)      201  
   data-arc span      5213 days (14.27 yr)  
   first obs. used      2005-05-16  
   last obs. used      2019-08-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57753  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:59:26  

Additional Information
 Earth MOID = .813718 au 
 Jupiter MOID = 2.57007 au 
 T_jup = 3.461 
[ 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 16.6   n/a MPO277824  

382181 (2012 KW4)          Discovered 2009-Jul-28 by CSS at Catalina
Reference: Last Updated: 2013-12-19

Alternate Designations
 2012 KW4 = 2011 BJ115 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin