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52455 Masamika (1995 AD1)
Classification: Main-belt Asteroid          SPK-ID: 2052455
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039023241196084 2.0933e-07  
a 2.525929204899141 1.6688e-08 au
q 2.010886369458611 5.3037e-07 au
i 18.96476707258123 1.045e-05 deg
node 281.2120320498742 1.9781e-05 deg
peri 177.9553200849118 4.5155e-05 deg
M 142.8482884312569 2.7167e-05 deg
tp 2457018.661133291654
(2014-Dec-27.16113329)
0.00011037 JED
period 1466.324828356653
4.01
1.4531e-05
3.978e-08
d
yr
n .2455117672688262 2.4331e-09 deg/d
Q 3.04097204033967 2.0091e-08 au
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      7411 days (20.29 yr)  
   first obs. used      1994-12-08  
   last obs. used      2015-03-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .47497  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 23:22:33  

Additional Information
 Earth MOID = 1.02624 au 
 Jupiter MOID = 2.15178 au 
 T_jup = 3.350 
[ 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 14.6 mag n/a MPO267880  

52455 Masamika           Discovered 1995 Jan. 6 by T. Seki at Geisei.
Masa-aki Takanashi (1959-2001) was an active member of the Gotemba Astronomical Circle and the Nippon Meteor Society. With his wife Mika he was devoted to the popularization of astronomy and meteor observations.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07

Alternate Designations
 1995 AD1 = 1998 XZ23 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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