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117120 (2004 PF21)
Classification: Main-belt Asteroid          SPK-ID: 2117120
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1872786608565885 4.6354e-08  
a 2.636072313053866 1.4063e-08 au
q 2.142392220344009 1.2281e-07 au
i 4.953784899058609 5.3055e-06 deg
node 156.8483900606787 5.1855e-05 deg
peri 173.9389851827246 5.35e-05 deg
M 251.749261375668 1.5003e-05 deg
tp 2459470.570258393165
(2021-Sep-13.07025839)
6.6732e-05 TDB
period 1563.271485923163
4.28
1.2509e-05
3.425e-08
d
yr
n .2302862959132195 1.8427e-09 deg/d
Q 3.129752405763724 1.6696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      7151 days (19.58 yr)  
   first obs. used      2000-09-26  
   last obs. used      2020-04-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64924  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:09:09  

Additional Information
 Earth MOID = 1.13176 au 
 Jupiter MOID = 2.23628 au 
 T_jup = 3.367 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.8   n/a MPO436562  

117120 (2004 PF21)          Discovered 2004-Aug-07 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 PF21 = 2000 SC336 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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