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21107 (1992 PZ4)
Classification: Main-belt Asteroid          SPK-ID: 2021107
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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1903920972312026 8.057e-08  
a 2.60894125615813 2.3419e-08 AU
q 2.112219458845176 2.2165e-07 AU
i 13.42745293019767 8.1701e-06 deg
node 183.3128111243243 2.1799e-05 deg
peri 162.5250613542937 2.7943e-05 deg
M 90.58260336990858 1.6676e-05 deg
tp 2456613.209204857657
(2013-Nov-16.70920486)
7.0338e-05 JED
period 1539.199372332902
4.21
2.0725e-05
5.674e-08
d
yr
n .2338878292643549 3.1492e-09 deg/d
Q 3.105663053471084 2.7877e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      911  
   data-arc span      23131 days (63.33 yr)  
   first obs. used      1950-08-22  
   last obs. used      2013-12-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .48047  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:54:26  

Additional Information
 Earth MOID = 1.11021 AU 
 T_jup = 3.347 
[ 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 13.0 mag n/a MPO267786  

21107 (1992 PZ4)          Discovered 1992-Aug-04 by Holt, H. E. at Palomar (675)
Reference: 20010208/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1992 PZ4 = 1950 QD = 1999 FJ47 = 2000 GG127 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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