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4004 List'ev (1971 SN1)
Classification: Main-belt Asteroid          SPK-ID: 2004004
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 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1980178223429632 4.6245e-08  
a 3.104420108410503 1.6598e-08 au
q 2.48968959890535 1.4516e-07 au
i 15.65474598883609 5.1766e-06 deg
node 18.53947627238529 1.317e-05 deg
peri 347.6076993391484 1.6498e-05 deg
M 339.013937059876 8.5153e-06 deg
tp 2459116.965589411914
(2020-Sep-24.46558941)
4.7063e-05 TDB
period 1997.878892668615
5.47
1.6023e-05
4.387e-08
d
yr
n .1801911023341056 1.4451e-09 deg/d
Q 3.719150617915657 1.9885e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2452  
   data-arc span      21943 days (60.08 yr)  
   first obs. used      1960-09-28  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40774  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 03:55:14  

Additional Information
 Earth MOID = 1.4914 au 
 Jupiter MOID = 1.74731 au 
 T_jup = 3.134 
[ 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 12.0   n/a MPO347554  
diameter diameter 24.762 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.050   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

4004 List'ev (1971 SN1)          Discovered 1971-Sep-16 by Crimean Astrophysical Obs. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1971 SN1 = 1982 SC4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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