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 ]  
27263 Elainezhou (1999 XA193)
Classification: Main-belt Asteroid          SPK-ID: 2027263
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0600947125767636 5.9088e-08  
a 2.372871793418966 1.0615e-08 au
q 2.230274745011943 1.3973e-07 au
i 7.023545402084373 5.5255e-06 deg
node 346.9248186429955 3.2209e-05 deg
peri 210.9176198466702 4.8295e-05 deg
M 4.004511284039506 3.4303e-05 deg
tp 2458585.648960313206
(2019-Apr-12.14896031)
0.00012724 TDB
period 1335.087831704836
3.66
8.9588e-06
2.453e-08
d
yr
n .2696451809768195 1.8094e-09 deg/d
Q 2.515468841825988 1.1253e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      8102 days (22.18 yr)  
   first obs. used      1997-03-05  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55655  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 03:27:28  

Additional Information
 Earth MOID = 1.23273 au 
 Jupiter MOID = 2.45497 au 
 T_jup = 3.531 
[ 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 14.9   n/a MPO337489  

27263 Elainezhou           Discovered 1999 Dec. 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Elaine Zhou (b. 1993) was a finalist in the 2010 Intel Science Talent Search, a science competition for high-school seniors, for her chemistry project. She attends the Lake Highland Prep School, Orlando, Florida, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110319/MPCPages.arcLast Updated: 2011-03-23

Alternate Designations
 1999 XA193 = 1997 EM51 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2019-Dec-14 10:48 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin