Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
39816 (1997 XE11)
Classification: Main-belt Asteroid          SPK-ID: 2039816
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2150047610724603 4.4636e-08  
a 2.319516720170465 1.2756e-08 AU
q 1.820809581946637 1.0581e-07 AU
i 8.527096467879877 7.6185e-06 deg
node 177.9799341284227 3.2336e-05 deg
peri 260.4717006398914 3.8021e-05 deg
M 334.4310334493585 1.7837e-05 deg
tp 2457092.144279740514
(2015-Mar-10.64427974)
6.4095e-05 JED
period 1290.311856806632
3.53
1.0644e-05
2.914e-08
d
yr
n .2790023187812573 2.3015e-09 deg/d
Q 2.818223858394293 1.5499e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      8714 days (23.86 yr)  
   first obs. used      1991-03-13  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56319  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:44:27  

Additional Information
 Earth MOID = .858393 AU 
 T_jup = 3.533 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5 mag n/a MPO263678  

39816 (1997 XE11)          Discovered 1997-Dec-10 by BAO Schmidt CCD Asteroid Program at Xinglong (327)
Reference: 20020526/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 XE11 = 1991 EQ7 = 2000 RM7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Mar-06 05:59 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin