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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1602522031312214 6.4135e-08  
a 2.189661525831106 1.3295e-08 AU
q 1.838763442204999 1.3822e-07 AU
i 4.525522913870498 5.9257e-06 deg
node 8.327315495601621 6.2636e-05 deg
peri 334.774883611162 6.4878e-05 deg
M 216.3821510767141 2.0932e-05 deg
tp 2457472.638944783210
(2016-Mar-25.13894478)
7.1379e-05 JED
period 1183.488134631133
3.24
1.0778e-05
2.951e-08
d
yr
n .3041855591667626 2.7703e-09 deg/d
Q 2.540559609457213 1.5425e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1231  
   data-arc span      13916 days (38.10 yr)  
   first obs. used      1976-04-01  
   last obs. used      2014-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51172  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:44:01  

Additional Information
 Earth MOID = .832743 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 Asteroid Lightcurve DataBase (Rev. 2014-Mar-01) 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 (675)
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 ]
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