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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 2 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05601280793751591 7.524e-08  
a 2.187551484701604 2.0143e-08 AU
q 2.065020583535585 1.665e-07 AU
i 4.739068754894554 7.9425e-06 deg
node 18.10150919520978 7.4732e-05 deg
peri 131.2632645393826 0.00010506 deg
M 219.3846170692791 6.8889e-05 deg
tp 2457262.100408619062
(2015-Aug-27.60040862)
0.00022509 JED
period 1181.777865546436
3.24
1.6323e-05
4.469e-08
d
yr
n .3046257765485745 4.2076e-09 deg/d
Q 2.310082385867623 2.1272e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1005  
   data-arc span      7551 days (20.67 yr)  
   first obs. used      1991-09-17  
   last obs. used      2012-05-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52374  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-10 01:52:42  

Additional Information
 Earth MOID = 1.07871 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 MPO231611  

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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