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7830 Akihikotago (1993 DC1)
Classification: Main-belt Asteroid          SPK-ID: 2007830
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1618256737879187 3.1938e-08  
a 2.386269081702522 7.6569e-09 au
q 2.000109479716733 7.8429e-08 au
i 2.994499133876325 3.2297e-06 deg
node 128.1221629924631 7.248e-05 deg
peri 127.7842450086809 7.3518e-05 deg
M 326.9520898431104 1.1753e-05 deg
tp 2458724.100164501376
(2019-Aug-28.60016450)
4.393e-05 TDB
period 1346.410681016059
3.69
6.4804e-06
1.774e-08
d
yr
n .2673775580332805 1.2869e-09 deg/d
Q 2.77242868368831 8.896e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2015  
   data-arc span      12134 days (33.22 yr)  
   first obs. used      1986-05-29  
   last obs. used      2019-08-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50636  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 00:59:18  

Additional Information
 Earth MOID = .986579 au 
 Jupiter MOID = 2.27803 au 
 T_jup = 3.515 
[ 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 14.1   n/a MPO384826  
diameter diameter 3.750 km 0.597 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.239   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

7830 Akihikotago           Discovered 1993 Feb. 24 by Y. Kushida and O. Muramatsu at the Yatsugatake South Base Observatory.
Named in honor of Akihiko Tago (b. 1932), credited with the discovery of comets C/1968 H1, C/1969 T1, C/1987 B1 (and an independent discovery of C/1970 U1) and the 1994 nova V2313 Oph. At the Satsuki Municipal Observatory in Yanahara, Okayama, Tago works as an instructor, popularizing astronomy, particularly among the young. Name proposed by the discoverers, following a suggestion by H. Kosai, who prepared the citation.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19980211/MPCPages.arcLast Updated: 2009-11-17

[ show close-approach data ]
Alternate Designations
 1993 DC1 = 1986 KK = 1989 EQ6 = 1997 JF15 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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