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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1305651141719107 4.9743e-08  
a 2.432679350098307 2.2416e-08 AU
q 2.115056293009072 1.226e-07 AU
i 5.556691108948326 9.4261e-06 deg
node 322.0884080379557 5.4401e-05 deg
peri 80.74307521087933 6.8415e-05 deg
M 302.3195592916557 4.1042e-05 deg
tp 2457022.550522277697
(2014-Dec-31.05052228)
0.00015896 JED
period 1385.880326819465
3.79
1.9155e-05
5.244e-08
d
yr
n .2597626887641765 3.5903e-09 deg/d
Q 2.750302407187542 2.5342e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      772  
   data-arc span      10792 days (29.55 yr)  
   first obs. used      1984-11-20  
   last obs. used      2014-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52553  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-16 13:48:28  

Additional Information
 Earth MOID = 1.1307 AU 
 T_jup = 3.488 
[ 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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