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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2356818373727954 5.239e-08  
a 3.220327521844925 1.5903e-08 au
q 2.461354814554332 1.6746e-07 au
i .982022061591635 4.2205e-06 deg
node 44.70646962693581 0.00027893 deg
peri 310.9362381992405 0.00027899 deg
M 182.5801658192015 8.2456e-06 deg
tp 2460436.774997579708
(2024-May-06.27499758)
5.2739e-05 TDB
period 2110.806837678948
5.78
1.5635e-05
4.281e-08
d
yr
n .1705508972085089 1.2633e-09 deg/d
Q 3.979300229135518 1.9651e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1267  
   data-arc span      10292 days (28.18 yr)  
   first obs. used      1993-04-26  
   last obs. used      2021-06-30  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54678  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 17:58:26  

Additional Information
 Earth MOID = 1.45625 au 
 Jupiter MOID = 1.46912 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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