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5960 Wakkanai (1989 US)
Classification: Main-belt Asteroid          SPK-ID: 2005960
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1540949620387651 3.94e-08  
a 2.188486649551598 5.337e-09 au
q 1.8512518823666 8.6561e-08 au
i 4.318085186135328 4.2679e-06 deg
node 43.49365235668542 3.9804e-05 deg
peri 330.9876043997201 4.089e-05 deg
M 173.2322916710431 9.3964e-06 deg
tp 2458431.462838666386
(2018-Nov-08.96283867)
3.0547e-05 TDB
period 1182.535750719642
3.24
4.3258e-06
1.184e-08
d
yr
n .3044305424008696 1.1136e-09 deg/d
Q 2.525721416736596 6.1595e-09 au
  Orbit Determination Parameters
   # obs. used (total)      3268  
   data-arc span      16847 days (46.12 yr)  
   first obs. used      1973-12-20  
   last obs. used      2020-02-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40395  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:51:19  

Additional Information
 Earth MOID = .853766 au 
 Jupiter MOID = 2.93715 au 
 T_jup = 3.656 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8   n/a MPO358688  
diameter diameter 4.665 km 0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 4.96286 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Hanus, J.; Durech, J.; Broz, M.; Marciniak, A.; et al. (2013) Astron. Astrophys. 551, A67.]
geometric albedo albedo 0.295   0.053 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5960 Wakkanai (1989 US)          Discovered 1989-Oct-21 by Mukai and Takeishi at Kagoshima
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1989 US = 1934 VK = 1973 YU1 = 1976 UD1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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