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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 | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2914958217806778 3.5651e-08  
a 2.39023470455299 8.8989e-09 au
q 1.69349127510062 8.7196e-08 au
i 7.522174066901775 6.1285e-06 deg
node 13.96904988557224 3.045e-05 deg
peri 55.63076234286517 3.2296e-05 deg
M 289.9880662814445 1.2764e-05 deg
tp 2458862.999705623995
(2020-Jan-14.49970562)
4.8638e-05 TDB
period 1349.768375267611
3.70
7.5379e-06
2.064e-08
d
yr
n .2667124275515974 1.4895e-09 deg/d
Q 3.086978134005359 1.1493e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1326  
   data-arc span      13517 days (37.01 yr)  
   first obs. used      1982-09-20  
   last obs. used      2019-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4604  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 01:00:23  

Additional Information
 Earth MOID = .720282 au 
 Jupiter MOID = 2.28471 au 
 T_jup = 3.462 
[ 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 13.6   n/a MPO416802  
diameter diameter 4.366 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
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

[ show close-approach data ]
Alternate Designations
 1982 SO4 = 1982 TL = 1991 CV2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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