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23880 Tongil (1998 SG5)
Classification: Main-belt Asteroid          SPK-ID: 2023880
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 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .169616017781472 1.7515e-08  
a 2.670884452761353 8.1057e-09 au
q 2.217859667929526 4.5627e-08 au
i 12.75239959438076 7.3371e-07 deg
node 182.9963008343408 2.9685e-06 deg
peri 180.0900773700505 7.9327e-06 deg
M 29.50474798936601 5.3235e-06 deg
tp 2459069.831626349359
(2020-Aug-08.33162635)
2.3453e-05 TDB
period 1594.340495000492
4.37
7.2578e-06
1.987e-08
d
yr
n .2257986930200182 1.0279e-09 deg/d
Q 3.12390923759318 9.4806e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2520  
   data-arc span      15319 days (41.94 yr)  
   first obs. used      1979-04-01  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .41819  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:31:39  

Additional Information
 Earth MOID = 1.21393 au 
 Jupiter MOID = 2.33765 au 
 T_jup = 3.325 
[ 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 12.93   n/a E2021B10  
diameter diameter 7.790 km 0.178 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

23880 Tongil           Discovered 1998 Sept. 18 by T. H. Lee at Younchun.
In Korean, Tongil means "reunification". This minor planet, the first one discovered by a Korean amateur astronomer, is named with the hope for an early reunification of the southern and northern parts of Korea, divided since 1945.
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
 1998 SG5 = 1979 GO = 2019 HJ6 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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