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 ]  
9942 (1989 TM1)
Classification: Main-belt Asteroid          SPK-ID: 2009942
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1651649247242575 8.6875e-08  
a 2.596185823506506 2.8553e-08 AU
q 2.16738698739687 2.1834e-07 AU
i 9.933533417975273 9.9981e-06 deg
node 21.77730995394994 3.8011e-05 deg
peri 38.37347753857301 4.588e-05 deg
M 342.5384884540522 2.4819e-05 deg
tp 2457074.610786585471
(2015-Feb-21.11078659)
0.00010563 JED
period 1527.925179934449
4.18
2.5207e-05
6.901e-08
d
yr
n .2356136313006143 3.887e-09 deg/d
Q 3.024984659616143 3.3269e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      847  
   data-arc span      8329 days (22.80 yr)  
   first obs. used      1989-09-30  
   last obs. used      2012-07-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53212  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 19:40:57  

Additional Information
 Earth MOID = 1.18794 AU 
 T_jup = 3.377 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.4 mag n/a MPO234897  

9942 (1989 TM1)          Discovered 1989-Oct-08 by Hioki, T., Kawasato, N. at Okutama (877)
Reference: 19990202/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Aug-23 03:32 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin