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 ]  
71193 (1999 XG231)
Classification: Main-belt Asteroid          SPK-ID: 2071193
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 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1494211100267393 5.1775e-08  
a 3.089854662463663 2.1133e-08 au
q 2.628165148977046 1.5994e-07 au
i 19.66760282604067 5.1289e-06 deg
node 73.08527272184537 1.5002e-05 deg
peri 7.581031601281986 2.3685e-05 deg
M 241.5424703236282 1.6789e-05 deg
tp 2459253.278249995256
(2021-Feb-07.77825000)
9.3714e-05 TDB
period 1983.834802568623
5.43
2.0352e-05
5.572e-08
d
yr
n .1814667226998338 1.8617e-09 deg/d
Q 3.551544175950279 2.4291e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1371  
   data-arc span      8539 days (23.38 yr)  
   first obs. used      1996-06-14  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52219  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 08:24:57  

Additional Information
 Earth MOID = 1.64454 au 
 Jupiter MOID = 1.75445 au 
 T_jup = 3.119 
[ 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 13.0   n/a MPO366066  
diameter diameter 14.747 km 0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.001 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

71193 (1999 XG231)          Discovered 1999-Dec-07 by CSS at Catalina
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin