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24981 Shigekimurakami (1998 KB5)
Classification: Main-belt Asteroid          SPK-ID: 2024981
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 .1497172592935102 3.5594e-08  
a 2.170040195287071 6.7674e-09 au
q 1.845147724691937 7.9648e-08 au
i 4.995849024390498 4.002e-06 deg
node 252.8890803697236 4.0835e-05 deg
peri 31.66284565135234 4.3847e-05 deg
M 349.6825785200091 1.8161e-05 deg
tp 2459233.963299924597
(2021-Jan-19.46329992)
5.898e-05 TDB
period 1167.616152564655
3.20
5.4619e-06
1.495e-08
d
yr
n .3083205034542081 1.4423e-09 deg/d
Q 2.494932665882204 7.7806e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1154  
   data-arc span      10686 days (29.26 yr)  
   first obs. used      1991-02-19  
   last obs. used      2020-05-23  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53594  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:52:10  

Additional Information
 Earth MOID = .829023 au 
 Jupiter MOID = 2.6362 au 
 T_jup = 3.670 
[ 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 15.74   n/a E2021B10  
diameter diameter 2.060 km 0.510 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.262   0.089 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

24981 Shigekimurakami           Discovered 1998 May 22 by A. Nakamura at Kuma Kogen.
Shigeki Murakami (b. 1962), born in Shiga Prefecture, is a senior researcher at the Forestry and Forest Products Research Institute and amateur astronomer in Japan. Using a homemade 0.46-m Dobsonian telescope, he codiscovered C/2002 E2.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020724/MPCPages.arcLast Updated: 2003-10-02

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Alternate Designations
 1998 KB5 = 1991 DF 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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