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 ]  
2705 Wu (1980 TD4)
Classification: Main-belt Asteroid          SPK-ID: 2002705
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603673367311122 5.1557e-08  
a 2.189887513964353 1.1376e-08 au
q 1.838701085609173 1.1423e-07 au
i 4.525485186656683 5.5285e-06 deg
node 8.324921624494332 5.8359e-05 deg
peri 334.7294655231071 6.0787e-05 deg
M 338.1084569039609 2.0018e-05 deg
tp 2457472.478868031184
(2016-Mar-24.97886803)
6.6116e-05 JED
period 1183.671355534299
3.24
9.223e-06
2.525e-08
d
yr
n .3041384741776565 2.3698e-09 deg/d
Q 2.541073942319532 1.32e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1339  
   data-arc span      14379 days (39.37 yr)  
   first obs. used      1976-04-01  
   last obs. used      2015-08-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .50073  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:06:17  

Additional Information
 Earth MOID = .830275 au 
 Jupiter MOID = 2.83884 au 
 T_jup = 3.653 
[ 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 13.2 mag n/a MPO236407  
rotation period rot_per 150.5 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Oey, J. (2010) Minor Planet Bul. 37, 53-54.]

2705 Wu (1980 TD4)          Discovered 1980-Oct-09 by Shoemaker, C. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1980 TD4 = 1967 TC = 1976 GF8 = 1976 JE1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2016-Feb-12 09:47 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin