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 ]  
390267 (2012 XS138)
Classification: Main-belt Asteroid          SPK-ID: 2390267
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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06459056366335715 5.7017e-08  
a 2.522513978302263 4.0902e-08 au
q 2.359583378595022 1.5684e-07 au
i 7.667621674947945 7.454e-06 deg
node 123.3110385366017 4.5026e-05 deg
peri 253.5045565605994 7.9072e-05 deg
M 264.7410697492093 7.0124e-05 deg
tp 2458987.714844654029
(2020-May-18.21484465)
0.00028997 TDB
period 1463.351978743151
4.01
3.5592e-05
9.745e-08
d
yr
n .2460105328242343 5.9836e-09 deg/d
Q 2.685444578009504 4.3544e-08 au
  Orbit Determination Parameters
   # obs. used (total)      130  
   data-arc span      4393 days (12.03 yr)  
   first obs. used      2007-06-24  
   last obs. used      2019-07-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59251  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:06:50  

Additional Information
 Earth MOID = 1.37224 au 
 Jupiter MOID = 2.61149 au 
 T_jup = 3.440 
[ 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 16.9   n/a MPO437598  
diameter diameter 2.655 km 0.561 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

390267 (2012 XS138)          Discovered 2008-Dec-03 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2014-03-21

Alternate Designations
 2012 XS138 = 2010 ML8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-21 09:11 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin