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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1603866783790556 5.1553e-08  
a 2.189909683477647 1.1443e-08 au
q 1.838677343394538 1.1422e-07 au
i 4.525472025039715 5.5286e-06 deg
node 8.32478901284675 5.8358e-05 deg
peri 334.7013122660929 6.0786e-05 deg
M 38.95576285128707 2.0275e-05 deg
tp 2457472.412442133127
(2016-Mar-24.91244213)
6.6119e-05 JED
period 1183.689330076895
3.24
9.278e-06
2.54e-08
d
yr
n .3041338557783686 2.3839e-09 deg/d
Q 2.541142023560756 1.3279e-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 = .831371 au 
 Jupiter MOID = 2.83958 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. 2016-February); 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 ]
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