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 ]  
442786 (2012 XN144)
Classification: Main-belt Asteroid          SPK-ID: 2442786
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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1779105228237845 1.8282e-07  
a 2.633902511143819 7.1866e-08 au
q 2.165303538319344 5.2088e-07 au
i 32.01606358295709 1.4127e-05 deg
node 310.1475606531869 1.2799e-05 deg
peri 139.395474967563 3.9235e-05 deg
M 183.5479294300339 2.7071e-05 deg
tp 2459365.783288179602
(2021-May-31.28328818)
0.00012778 TDB
period 1561.341744841785
4.27
6.3902e-05
1.75e-07
d
yr
n .2305709183715445 9.4367e-09 deg/d
Q 3.102501483968295 8.4652e-08 au
  Orbit Determination Parameters
   # obs. used (total)      105  
   data-arc span      2938 days (8.04 yr)  
   first obs. used      2009-02-01  
   last obs. used      2017-02-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45854  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-09 12:25:17  

Additional Information
 Earth MOID = 1.23101 au 
 Jupiter MOID = 2.1191 au 
 T_jup = 3.163 
[ 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 16.7   n/a MPO386694  

442786 (2012 XN144)          Discovered 2009-Feb-01 by CSS at Catalina
Reference: Last Updated: 2015-09-02

Alternate Designations
 2012 XN144 = 2011 OC39 
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