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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 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2037261107352257 2.9406e-07  
a 2.526500202333125 1.8696e-08 AU
q 2.011786142340037 7.4689e-07 AU
i 18.96837804435287 1.0695e-05 deg
node 281.238376747592 2.1436e-05 deg
peri 178.0927264589419 6.158e-05 deg
M 355.4357442644996 3.6487e-05 deg
tp 2457019.097086115068
(2014-Dec-27.59708612)
0.00014864 JED
period 1466.82206024343
4.02
1.6282e-05
4.458e-08
d
yr
n .245428542259758 2.7243e-09 deg/d
Q 3.041214262326214 2.2505e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      444  
   data-arc span      7348 days (20.12 yr)  
   first obs. used      1994-12-08  
   last obs. used      2015-01-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52238  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Feb-04 15:14:10  

Additional Information
 Earth MOID = 1.02855 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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