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11902 (1991 PZ12)
Classification: Main-belt Asteroid          SPK-ID: 2011902
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1304579046923762 4.9598e-08  
a 2.432296953911845 2.0215e-08 AU
q 2.114984589714856 1.225e-07 AU
i 5.556760567506897 9.0899e-06 deg
node 322.0884424102891 5.3216e-05 deg
peri 80.78368162790501 6.5944e-05 deg
M 354.2384844626254 3.7439e-05 deg
tp 2457022.674690011996
(2014-Dec-31.17469001)
0.00014414 JED
period 1385.553567031826
3.79
1.7273e-05
4.729e-08
d
yr
n .2598239494783322 3.2391e-09 deg/d
Q 2.749609318108833 2.2852e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      782  
   data-arc span      10881 days (29.79 yr)  
   first obs. used      1984-11-20  
   last obs. used      2014-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52779  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Sep-12 13:59:12  

Additional Information
 Earth MOID = 1.13157 AU 
 T_jup = 3.489 
[ 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 14.4 mag n/a MPO266022  

11902 (1991 PZ12)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar (675)
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PZ12 = 1984 WH1 = 1984 YF3 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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