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JPL Small-Body Database Browser
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4824 Stradonice (1986 WL1)
Classification: Main-belt Asteroid          SPK-ID: 2004824
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05571592880427569 3.7384e-08  
a 2.28946896086715 7.9541e-09 au
q 2.161909071243877 8.4234e-08 au
i 6.469306545282409 4.8992e-06 deg
node 40.28359209834313 3.0182e-05 deg
peri 42.12242465685984 5.5044e-05 deg
M 231.3837596666316 4.4827e-05 deg
tp 2459452.557705557442
(2021-Aug-26.05770556)
0.00015766 TDB
period 1265.320565885468
3.46
6.594e-06
1.805e-08
d
yr
n .2845128813251154 1.4827e-09 deg/d
Q 2.417028850490423 8.3973e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1907  
   data-arc span      15510 days (42.46 yr)  
   first obs. used      1977-02-12  
   last obs. used      2019-08-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .47772  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:22:57  

Additional Information
 Earth MOID = 1.1817 au 
 Jupiter MOID = 2.69197 au 
 T_jup = 3.589 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.7   n/a MPO473833  
diameter diameter 4.119 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.890 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:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.454   0.099 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B Sr   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

4824 Stradonice (1986 WL1)          Discovered 1986-Nov-25 by Mrkos, A. at Klet
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1986 WL1 = 1984 DL1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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