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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .187602404978615 4.2083e-08  
a 2.452725162916727 1.1042e-08 au
q 1.992588023601984 1.058e-07 au
i 3.560059749634426 4.7694e-06 deg
node 26.87827060138217 9.035e-05 deg
peri 317.5144661626974 9.1619e-05 deg
M 154.4508867191913 1.701e-05 deg
tp 2456998.551048966075
(2014-Dec-07.05104897)
6.4804e-05 JED
period 1403.045505113871
3.84
9.4747e-06
2.594e-08
d
yr
n .2565846928612501 1.7327e-09 deg/d
Q 2.912862302231471 1.3114e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1303  
   data-arc span      15931 days (43.62 yr)  
   first obs. used      1972-09-04  
   last obs. used      2016-04-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54584  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:13:29  

Additional Information
 Earth MOID = .986111 au 
 Jupiter MOID = 2.48758 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 13.6 mag n/a MPO302140  

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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