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12127 Mamiya (1999 RD37)
Classification: Main-belt Asteroid          SPK-ID: 2012127
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 3 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .188191390979109 6.628e-08  
a 2.45241975036689 2.2821e-08 AU
q 1.990895466280706 1.5737e-07 AU
i 3.559849473086382 7.6086e-06 deg
node 26.88887028544666 9.3935e-05 deg
peri 317.4669175212175 9.7302e-05 deg
M 309.1410891705013 3.5369e-05 deg
tp 2456998.677884874236
(2014-Dec-07.17788487)
0.00013995 JED
period 1402.78345310818
3.84
1.958e-05
5.361e-08
d
yr
n .2566326250871719 3.5821e-09 deg/d
Q 2.913944034453074 2.7116e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1032  
   data-arc span      14895 days (40.78 yr)  
   first obs. used      1972-09-08  
   last obs. used      2013-06-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55384  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-05 17:01:53  

Additional Information
 Earth MOID = .983994 AU 
 T_jup = 3.468 
[ 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 13.5 mag n/a MPO263458  

12127 Mamiya           Discovered 1999 Sept. 9 by K. Watanabe at Sapporo.
Rinzo Mamiya (1780-1844) was an explorer and surveyor of the northern area of Japan. In 1809, he reached the north Sakhalin and showed that Karafuto (Sakhalin) is an island separated by a narrow channel, now called the Mamiya strait.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010109/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1999 RD37 = 1972 RD3 = 1980 TE15 = 1998 HM57 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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