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

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .194211196227743 4.1521e-08  
a 2.213153783052969 1.1284e-08 AU
q 1.783334539410297 9.6289e-08 AU
i 4.767518493522165 4.7025e-06 deg
node 153.6921265769523 5.2273e-05 deg
peri 116.3888544111191 5.3892e-05 deg
M 5.823265367576016 1.4265e-05 deg
tp 2456981.047299690094
(2014-Nov-19.54729969)
4.7612e-05 JED
period 1202.585090928318
3.29
9.1973e-06
2.518e-08
d
yr
n .299355116503318 2.2895e-09 deg/d
Q 2.642973026695641 1.3476e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1114  
   data-arc span      13202 days (36.15 yr)  
   first obs. used      1978-05-06  
   last obs. used      2014-06-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52415  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jul-14 12:27:58  

Additional Information
 Earth MOID = .775002 AU 
 T_jup = 3.626 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.1 mag n/a MPO253450  

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

[ show close-approach data ]
Alternate Designations
 1985 PQ = 1978 JM1 = 1991 ED1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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