Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
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 ]  
3454 Lieske (1981 WB1)
Classification: Main-belt Asteroid          SPK-ID: 2003454
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ hide orbit diagram ]

For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


[ revert to old Java-based viewer ]

Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1579776232119735 2.5208e-08  
a 2.267242005011938 5.5573e-09 au
q 1.909068501813803 5.6851e-08 au
i 5.361468113798376 3.5302e-06 deg
node 193.6405662097951 3.3165e-05 deg
peri 245.078430531473 3.5446e-05 deg
M 84.87719790186685 1.2162e-05 deg
tp 2458706.509174092850
(2019-Aug-11.00917409)
4.1888e-05 TDB
period 1246.939106648407
3.41
4.5846e-06
1.255e-08
d
yr
n .2887069609739231 1.0615e-09 deg/d
Q 2.625415508210073 6.4352e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      31676 days (86.72 yr)  
   first obs. used      1933-10-19  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:00:10  

Additional Information
 Earth MOID = .931594 au 
 Jupiter MOID = 2.62706 au 
 T_jup = 3.593 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456962.5 (2014-Nov-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1570524728239375 2.5156e-08  
q 1.911717917233016 5.6692e-08 au
tp 2457458.977997884699
(2016-Mar-11.47799788)
4.164e-05 TDB
node 193.6626643982721 3.3164e-05 deg
peri 245.0353124859509 3.5483e-05 deg
i 5.359801343005083 3.5309e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2639  
   data-arc span      31676 days (86.72 yr)  
   first obs. used      1933-10-19  
   last obs. used      2020-07-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .44484  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 04:00:10  

Additional Information
 Jupiter MOID = 2.62706 au 
 T_jup = 3.593 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.328205223279487E-16 -1.421328299671837E-15 4.095304179550978E-14 -1.079886143838107E-15 6.886856777730752E-15 -2.556961161601744E-16
q -1.421328299671837E-15 3.213978383284518E-15 -7.339317529295302E-14 2.307127246379707E-15 -1.289233712783456E-14 5.908956764031439E-16
tp 4.095304179550978E-14 -7.339317529295302E-14 1.733850102422122E-9 -4.397441546266269E-12 5.325267474568949E-10 -9.703107342576287E-13
node -1.079886143838107E-15 2.307127246379707E-15 -4.397441546266269E-12 1.099862871569141E-9 -1.095936180207452E-9 -2.286884457282624E-11
peri 6.886856777730752E-15 -1.289233712783456E-14 5.325267474568949E-10 -1.095936180207452E-9 1.259068574768711E-9 2.248057869474109E-11
i -2.556961161601744E-16 5.908956764031439E-16 -9.703107342576287E-13 -2.286884457282624E-11 2.248057869474109E-11 1.246740316150453E-11

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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Nov-28 05:54 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin