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27791 Masaru (1993 DD1)
Classification: Main-belt Asteroid          SPK-ID: 2027791
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0561047855628647 7.4364e-08  
a 2.187433369133595 1.845e-08 AU
q 2.0647078890253 1.6556e-07 AU
i 4.739170388117148 7.84e-06 deg
node 18.10125144649617 7.306e-05 deg
peri 131.2906960662727 0.0001034 deg
M 280.2935539889193 6.8539e-05 deg
tp 2457262.132457523953
(2015-Aug-27.63245752)
0.00022446 JED
period 1181.682152727386
3.24
1.495e-05
4.093e-08
d
yr
n .3046504503508838 3.8544e-09 deg/d
Q 2.31015884924189 1.9485e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1021  
   data-arc span      8446 days (23.12 yr)  
   first obs. used      1991-09-17  
   last obs. used      2014-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .5205  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:51:52  

Additional Information
 Earth MOID = 1.07881 AU 
 T_jup = 3.669 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO313636  

27791 Masaru           Discovered 1993 Feb. 24 by Y. Kushida and O. Muramatsu at the Yatsugatake South Base Observatory.
Masaru Kubota (b. 1959) is a broadcaster at a television station and a certified weather forecaster. He makes an effort to popularize science and astronomy through his weather reports.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20020624/MPCPages.arcLast Updated: 2003-10-02

Alternate Designations
 1993 DD1 = 1991 SH5 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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