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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .188128591311502 4.9198e-08  
a 2.452302846089524 1.3273e-08 AU
q 1.990954566185515 1.2533e-07 AU
i 3.559872839744552 5.7387e-06 deg
node 26.8842777925298 9.1549e-05 deg
peri 317.4579776600331 9.3024e-05 deg
M .4756571170821968 1.7485e-05 deg
tp 2456998.646677156842
(2014-Dec-07.14667716)
6.8123e-05 JED
period 1402.683150479609
3.84
1.1388e-05
3.118e-08
d
yr
n .2566509762927627 2.0837e-09 deg/d
Q 2.913651125993534 1.5771e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1058  
   data-arc span      15320 days (41.94 yr)  
   first obs. used      1972-09-04  
   last obs. used      2014-08-15  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54793  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:59:34  

Additional Information
 Earth MOID = .985741 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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