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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2039317989869353 2.8986e-07  
a 2.52616489417397 1.8418e-08 au
q 2.010999542767431 7.3648e-07 au
i 18.96402435121535 1.0643e-05 deg
node 281.2149675819043 2.0977e-05 deg
peri 177.9881472135338 6.0857e-05 deg
M 93.70066699488709 3.6043e-05 deg
tp 2457018.792097079585
(2014-Dec-27.29209708)
0.0001474 JED
period 1466.53006278864
4.02
1.6038e-05
4.391e-08
d
yr
n .2454774089768414 2.6846e-09 deg/d
Q 3.04133024558051 2.2174e-08 au
  Orbit Determination Parameters
   # obs. used (total)      558  
   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      .46958  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jun-04 17:55:11  

Additional Information
 Earth MOID = 1.02767 au 
 Jupiter MOID = 2.15276 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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