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JPL Small-Body Database Browser
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11928 Akimotohiro (1993 BT2)
Classification: Main-belt Asteroid          SPK-ID: 2011928
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2062629026216043 4.1671e-08  
a 2.636126278434059 8.8015e-09 au
q 2.092391220567162 1.0836e-07 au
i 5.425599808749317 4.267e-06 deg
node 328.7234328375737 4.2524e-05 deg
peri 195.3634614264967 4.3419e-05 deg
M 24.85664085858908 8.9535e-06 deg
tp 2458492.558691301990
(2019-Jan-09.05869130)
3.872e-05 TDB
period 1563.319490849713
4.28
7.8294e-06
2.144e-08
d
yr
n .2302792245008912 1.1533e-09 deg/d
Q 3.179861336300955 1.0617e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1856  
   data-arc span      23424 days (64.13 yr)  
   first obs. used      1955-03-24  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49752  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 01:58:34  

Additional Information
 Earth MOID = 1.10137 au 
 Jupiter MOID = 1.81123 au 
 T_jup = 3.361 
[ 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 13.3   n/a MPO389703  
diameter diameter 8.040 km 0.161 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  
geometric albedo albedo 0.177   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2014ApJ...791..121M)  

11928 Akimotohiro           Discovered 1993 Jan. 23 by K. Endate and K. Watanabe at Kitami.
Hiroyuki Akimoto (b. 1967) is editor-in-chief of the Japanese monthly astronomical magazine Gekkan Tenmon Guide. He has edited many books on astronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20030910/MPCPages.arcLast Updated: 2003-10-02

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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