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4890 Shikanosima (1982 VE4)
Classification: Main-belt Asteroid          SPK-ID: 2004890
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 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1500296220672184 3.0756e-08  
a 2.204165781816304 6.3552e-09 au
q 1.873475622596909 7.0013e-08 au
i 3.655652430451181 3.119e-06 deg
node 100.2772032491848 5.8273e-05 deg
peri 185.489836338944 5.9997e-05 deg
M 281.5550739845364 1.661e-05 deg
tp 2459260.951682812610
(2021-Feb-15.45168281)
5.5712e-05 TDB
period 1195.266674023715
3.27
5.1694e-06
1.415e-08
d
yr
n .3011880175560364 1.3026e-09 deg/d
Q 2.534855941035699 7.3087e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2616  
   data-arc span      13777 days (37.72 yr)  
   first obs. used      1982-11-14  
   last obs. used      2020-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43936  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:21:09  

Additional Information
 Earth MOID = .857086 au 
 Jupiter MOID = 2.60346 au 
 T_jup = 3.645 
[ 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 13.6   n/a MPO358677  
diameter diameter 4.656 km 0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 16.476 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 0.324   0.047 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

4890 Shikanosima (1982 VE4)          Discovered 1982-Nov-14 by Kosai and Hurukawa at Kiso
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1982 VE4 = 1987 BM2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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