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3454 Lieske (1981 WB1)
Classification: Main-belt Asteroid          SPK-ID: 2003454
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 .1579776229438368 2.5216e-08  
a 2.267242005045547 5.5584e-09 au
q 1.909068502450033 5.6874e-08 au
i 5.361468110319239 3.5303e-06 deg
node 193.6405665445056 3.3186e-05 deg
peri 245.0784301158522 3.5466e-05 deg
M 84.87719794223588 1.2162e-05 deg
tp 2458706.509173946486
(2019-Aug-11.00917395)
4.1889e-05 TDB
period 1246.939106676133
3.41
4.5856e-06
1.255e-08
d
yr
n .2887069609675035 1.0617e-09 deg/d
Q 2.625415507641061 6.4365e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2631  
   data-arc span      31652 days (86.66 yr)  
   first obs. used      1933-10-19  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44503  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 15:57:51  

Additional Information
 Earth MOID = .931594 au 
 Jupiter MOID = 2.62706 au 
 T_jup = 3.593 
[ 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 13.3   n/a MPO347549  
diameter diameter 5.637 km 0.062 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 105. h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pravec, P.; Wolf, M.; Sarounova, L. (2015) http://www.asu.cas.cz/~ppravec/neo.htm]
geometric albedo albedo 0.202   0.044 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

3454 Lieske (1981 WB1)          Discovered 1981-Nov-24 by Bowell, E. at Flagstaff (AM)
Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory.
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1981 WB1 = 1933 UJ1 = 1938 EL = 1957 WE = 1964 VX1 = 1967 RQ = 1981 WA4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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