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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 6 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05610476224153821 7.1653e-08  
a 2.187433354955193 1.3515e-08 AU
q 2.064707926656221 1.6248e-07 AU
i 4.739166727168599 6.7862e-06 deg
node 18.10127838415676 6.6442e-05 deg
peri 131.2906808470313 9.8523e-05 deg
M 280.2935525705432 6.8448e-05 deg
tp 2457262.132459635947
(2015-Aug-27.63245964)
0.00022424 JED
period 1181.682141238329
3.24
1.0951e-05
2.998e-08
d
yr
n .3046504533128871 2.8234e-09 deg/d
Q 2.310158783254164 1.4273e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1083  
   data-arc span      8527 days (23.35 yr)  
   first obs. used      1991-09-17  
   last obs. used      2015-01-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .51059  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 14:16:31  

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 14.0 mag n/a MPO319428  

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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