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 ]  
23708 (1997 TR18)
Classification: Main-belt Asteroid          SPK-ID: 2023708
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04857520167325397 6.2943e-08  
a 2.988233317057408 2.9469e-08 AU
q 2.843079281034607 1.944e-07 AU
i 9.460547389434538 5.8862e-06 deg
node 200.1758180144702 4.0036e-05 deg
peri 291.1117504975747 7.4693e-05 deg
M 350.5337526588378 6.181e-05 deg
tp 2457050.113004632224
(2015-Jan-27.61300463)
0.00032387 JED
period 1886.775300063915
5.17
2.791e-05
7.641e-08
d
yr
n .1908017345721056 2.8224e-09 deg/d
Q 3.133387353080208 3.09e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1098  
   data-arc span      12358 days (33.83 yr)  
   first obs. used      1981-07-26  
   last obs. used      2015-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .46996  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 16:45:40  

Additional Information
 Earth MOID = 1.87337 AU 
 T_jup = 3.235 
[ 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 13.0 mag n/a MPO296324  

23708 (1997 TR18)          Discovered 1997-Oct-05 by Beijing Schmidt CCD Asteroid Program at Xinglong
Reference: 20010408/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1997 TR18 = 1998 XU84 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2015-Jun-30 14:29 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin