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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 40 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1978920930231032 8.8148e-09  
a 3.103888611148021 1.3182e-08 au
q 2.489653597377366 2.5335e-08 au
i 15.65568400616242 5.4504e-07 deg
node 18.53758618229249 2.431e-06 deg
peri 347.6547063404951 6.9294e-06 deg
M 15.02616278717903 4.7432e-06 deg
tp 2459117.131265972476
(2020-Sep-24.63126597)
2.6176e-05 TDB
period 1997.365839502076
5.47
1.2724e-05
3.484e-08
d
yr
n .1802373871026774 1.1482e-09 deg/d
Q 3.718123624918675 1.5791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2768  
   data-arc span      22087 days (60.47 yr)  
   first obs. used      1960-09-28  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .39085  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 21:21:16  

Additional Information
 Earth MOID = 1.48987 au 
 Jupiter MOID = 1.74938 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 12.13   n/a E2021B10  
diameter diameter 24.762 km 0.277 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 17.9394 h n/a LCDB (Rev. 2020-October); 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:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]
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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