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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 ]

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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1587721855410126 3.8495e-08  
a 2.813593511927816 1.3866e-08 au
q 2.366873120815023 1.0819e-07 au
i 9.085399800830668 4.4938e-06 deg
node 4.88191009622761 2.4621e-05 deg
peri 311.6788169330028 2.7915e-05 deg
M 189.9696760880669 1.5348e-05 deg
tp 2459414.668581383332
(2021-Jul-19.16858138)
7.6278e-05 TDB
period 1723.814214750367
4.72
1.2743e-05
3.489e-08
d
yr
n .2088392106988937 1.5438e-09 deg/d
Q 3.260313903040609 1.6067e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2184  
   data-arc span      28567 days (78.21 yr)  
   first obs. used      1941-09-20  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46281  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:14:57  

Additional Information
 Earth MOID = 1.36481 au 
 Jupiter MOID = 2.10841 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 11.7   n/a MPO473797  
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. 2019-January); 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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