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20208 Philiphe (1997 FC4)
Classification: Main-belt Asteroid          SPK-ID: 2020208
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 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08455742715123052 3.1523e-08  
a 2.962939151308895 1.4862e-08 au
q 2.712400639868565 9.8543e-08 au
i 10.13856097124268 3.642e-06 deg
node 184.439759354724 1.8316e-05 deg
peri 263.6252778155126 2.8044e-05 deg
M 289.1780051991162 2.0747e-05 deg
tp 2459366.978229100342
(2021-Jun-01.47822910)
0.00010749 TDB
period 1862.869901462826
5.10
1.4016e-05
3.837e-08
d
yr
n .1932502101823152 1.454e-09 deg/d
Q 3.213477662749226 1.6119e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1782  
   data-arc span      9536 days (26.11 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:13:07  

Additional Information
 Earth MOID = 1.75219 au 
 Jupiter MOID = 2.00119 au 
 T_jup = 3.236 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457182.5 (2015-Jun-09.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08174974249621782 3.1211e-08  
q 2.722658283973504 9.724e-08 au
tp 2457492.185358894655
(2016-Apr-13.68535889)
0.00011278 TDB
node 184.5820321265515 1.8255e-05 deg
peri 261.6674650363369 2.878e-05 deg
i 10.15111664499978 3.6474e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1782  
   data-arc span      9536 days (26.11 yr)  
   first obs. used      1994-10-08  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48146  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 03:13:07  

Additional Information
 Jupiter MOID = 2.00119 au 
 T_jup = 3.236 
Orbit Covariance (6×6)
  e q tp node peri i
e 9.741377781586818E-16 -3.007739498095702E-15 -4.65162578686253E-13 4.321871305393749E-15 -7.458241425049155E-14 -2.220350750386995E-16
q -3.007739498095702E-15 9.455669408107944E-15 1.275542314255247E-12 -1.281597827743727E-14 1.924704527206534E-13 1.042720200928478E-15
tp -4.65162578686253E-13 1.275542314255247E-12 1.271835867133983E-8 -1.425441866472527E-11 2.520558375948921E-9 2.56740112910514E-12
node 4.321871305393749E-15 -1.281597827743727E-14 -1.425441866472527E-11 3.332557776850982E-10 -3.304913948970705E-10 9.075307815521669E-12
peri -7.458241425049155E-14 1.924704527206534E-13 2.520558375948921E-9 -3.304913948970705E-10 8.282667485281533E-10 -8.452098371814199E-12
i -2.220350750386995E-16 1.042720200928478E-15 2.56740112910514E-12 9.075307815521669E-12 -8.452098371814199E-12 1.330316444953902E-11

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.6   n/a MPO439234  

20208 Philiphe           Discovered 1997 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Philip Cody He (b. 1994) is a finalist in the 2012 Intel Science Talent Search, a science competition for high-school seniors, for his plant-science project. He attends the Okemos High School, Okemos, Michigan.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120506/MPCPages.arcLast Updated: 2012-05-09

Alternate Designations
 1997 FC4 = 1999 RG163 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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