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 ]  
17644 (1996 TW8)
Classification: Main-belt Asteroid          SPK-ID: 2017644
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06854129144583791 4.7079e-08  
a 2.672868246132058 1.4629e-08 au
q 2.489666404677595 1.2845e-07 au
i 21.29301400602412 4.9485e-06 deg
node 286.7630072461325 1.5689e-05 deg
peri 156.5309407790978 5.0913e-05 deg
M 355.3491235039335 4.5981e-05 deg
tp 2458621.120398806535
(2019-May-17.62039881)
0.00020385 TDB
period 1596.117113974289
4.37
1.3104e-05
3.588e-08
d
yr
n .2255473591806867 1.8517e-09 deg/d
Q 2.856070087586521 1.5632e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1375  
   data-arc span      11294 days (30.92 yr)  
   first obs. used      1989-01-04  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .42024  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 00:21:23  

Additional Information
 Earth MOID = 1.51424 au 
 Jupiter MOID = 2.32737 au 
 T_jup = 3.279 
[ 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 12.9   n/a MPO416897  

17644 (1996 TW8)          Discovered 1996-Oct-10 by Spahr, T. B. at Catalina Station
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1996 TW8 = 1989 AS 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-21 09:38 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin