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8141 Nikolaev (1982 SO4)
Classification: Main-belt Asteroid          SPK-ID: 2008141
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2917791681887414 1.9007e-08  
a 2.389928717994197 6.179e-09 au
q 1.692597304627465 4.5897e-08 au
i 7.523105224235298 5.0511e-07 deg
node 13.96303581759416 1.5521e-05 deg
peri 55.55784353287882 1.573e-05 deg
M 142.3501265747277 4.3504e-06 deg
tp 2458862.881097162765
(2020-Jan-14.38109716)
1.5869e-05 TDB
period 1349.509197103234
3.69
5.2336e-06
1.433e-08
d
yr
n .2667636506462882 1.0346e-09 deg/d
Q 3.087260131360928 7.9819e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2147  
   data-arc span      14171 days (38.80 yr)  
   first obs. used      1982-09-20  
   last obs. used      2021-07-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41476  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 12:23:47  

Additional Information
 Earth MOID = .719348 au 
 Jupiter MOID = 2.2867 au 
 T_jup = 3.463 
[ 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 13.68   n/a MPO614063  
diameter diameter 4.366 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 366.9 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:
[Polakis, T. (2020) Minor Planet Bull. 47, 94-101.]
geometric albedo albedo 0.243   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8141 Nikolaev           Discovered 1982 Sept. 20 by N. S. Chernykh at the Crimean Astrophysical Observatory.
Nikolaev is a city and large industrial and cultural center in southern Ukraine. The Nikolaev Astronomical Observatory was established there in 1821.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010902/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1982 SO4 = 1982 TL = 1991 CV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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