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 ]  
20178 (1996 XE31)
Classification: Main-belt Asteroid          SPK-ID: 2020178
[ 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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1296839165294366 3.6954e-08  
a 2.417037290535526 1.0214e-08 au
q 2.103586428301181 9.1022e-08 au
i 10.89923674234181 4.6222e-06 deg
node 271.7383684114282 2.1772e-05 deg
peri 304.759369692112 3.0468e-05 deg
M 244.0856896620221 2.3064e-05 deg
tp 2459042.434603301087
(2020-Jul-11.93460330)		 8.8651e-05 TDB
period 1372.535079788724
3.76		 8.6999e-06
2.382e-08		 d
yr
n .2622883781268566 1.6625e-09 deg/d
Q 2.730488152769871 1.1538e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1445  
   data-arc span      9808 days (26.85 yr)  
   first obs. used      1993-01-29  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54072  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:42:15  

Additional Information
 Earth MOID = 1.1153 au 
 Jupiter MOID = 2.33545 au 
 T_jup = 3.480 
[ 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 14.3   n/a MPO502319  

20178 (1996 XE31)          Discovered 1996-Dec-14 by Kobayashi, T. at Oizumi
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 XE31 = 1998 MO25 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-25 08:10 UT
(server date/time)   		NASA Home Page
Site Manager:   Ryan S. Park
Webmaster:   Alan B. Chamberlin