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18121 Konovalenko (2000 NF25)
Classification: Outer Main-belt Asteroid          SPK-ID: 2018121
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2354659075661226 5.2511e-08  
a 3.220832116899218 1.6167e-08 au
q 2.462435959375428 1.6777e-07 au
i .9819990933993323 4.4571e-06 deg
node 44.70839375792793 0.00028176 deg
peri 310.917293678003 0.00028183 deg
M 149.1884627070581 8.262e-06 deg
tp 2458325.549875621868
(2018-Jul-26.04987562)
4.5913e-05 TDB
period 2111.302972500069
5.78
1.5896e-05
4.352e-08
d
yr
n .1705108194745311 1.2838e-09 deg/d
Q 3.979228274423008 1.9973e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1186  
   data-arc span      10128 days (27.73 yr)  
   first obs. used      1993-04-26  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55278  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:36:51  

Additional Information
 Earth MOID = 1.45647 au 
 Jupiter MOID = 1.46872 au 
 T_jup = 3.145 
[ 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 14.12   n/a E2021B10  
diameter diameter 9.248 km 0.370 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18121 Konovalenko           Discovered 2000 July 4 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station.
Alexandr A. Konovalenko (b. 1951) is an academician at the Ukrainian National Academy of Sciences and a well-known radioastronomer. He is active in astrophysics and instrumentation using the largest decameter radio telescope (UTR-2). The name was suggested by D. F. Lupishko.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20060219/MPCPages.arcLast Updated: 2010-06-03

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Alternate Designations
 2000 NF25 = 1994 NV8 = 1995 VO7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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