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12225 Yanfernandez (1985 PQ)
Classification: Main-belt Asteroid          SPK-ID: 2012225
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB
Reference: MPO253450 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.1935611 n/a  
a 2.2144094 n/a AU
q 1.7857859 n/a AU
i 4.76422 n/a deg
node 153.72457 n/a deg
peri 116.17493 n/a deg
M 186.42509 n/a deg
tp 2456980.8229576
(2014-Nov-19.32295760)
n/a JED
period 1203.6086595
3.30
n/a
n/a
d
yr
n 0.29910054 n/a deg/d
Q 2.6430329 n/a AU
  Orbit Determination Parameters
   # obs. used (total)      945  
   first obs. used      1985-??-??  
   last obs. used      2013-01-30  
   # oppositions      14  
   planetary ephem.      DE403  
   condition code      0  
   fit RMS      0.54  
   data source      MPC:mpn  
   producer      MPCLINUX  

Additional Information
 T_jup = 3.625 

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a PDS3 (MPC 36666)  

12225 Yanfernández           Discovered 1985 Aug. 14 by E. Bowell at the Anderson Mesa Station of the Lowell Observatory.
Yanga R. Fernández (b. 1971) completed his thesis on the albedo and size distribution of cometary nuclei at the University of Maryland in 1999. Since then, at the University of Hawaii, he has measured albedos of other small bodies, recovered comets and discovered new jovian satellites. The name was suggested by M. F. A'Hearn.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20011130/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 1985 PQ = 1978 JM1 = 1991 ED1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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