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2386 Nikonov (1974 SN1)
Classification: Main-belt Asteroid          SPK-ID: 2002386
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 39 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1592658238427974 2.1631e-08  
a 2.813401854825153 1.11e-08 au
q 2.365323090615571 6.4744e-08 au
i 9.086708079790238 3.2473e-07 deg
node 4.875156266238098 1.8785e-06 deg
peri 311.6807558747191 3.4182e-06 deg
M 315.3369377606078 3.1001e-06 deg
tp 2459414.341541597144
(2021-Jul-18.84154160)
1.5561e-05 TDB
period 1723.638082904981
4.72
1.0201e-05
2.793e-08
d
yr
n .2088605511623786 1.2361e-09 deg/d
Q 3.261480619034735 1.2868e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2768  
   data-arc span      29012 days (79.43 yr)  
   first obs. used      1941-09-20  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .43577  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-12 13:43:06  

Additional Information
 Earth MOID = 1.36218 au 
 Jupiter MOID = 2.11001 au 
 T_jup = 3.283 
[ 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 11.72   n/a E2021B10  
diameter diameter 11.910 km 0.208 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 5.8944 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J. (2018) Astron. Astrophys. 620, A91.]
geometric albedo albedo 0.284   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
SMASSII spectral type spec_B S   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)

2386 Nikonov (1974 SN1)          Discovered 1974-Sep-19 by Chernykh, L. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1974 SN1 = 1941 SY = 1951 WB1 = 1979 UB2 = 1982 FD2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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