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21419 Devience (1998 FP72)
Classification: Main-belt Asteroid          SPK-ID: 2021419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1149961102703521 4.2732e-08  
a 2.275266647957167 7.6535e-09 au
q 2.01361983361423 9.9047e-08 au
i 2.391613968851736 4.2612e-06 deg
node 339.3771504921027 8.3346e-05 deg
peri 196.5174029210906 8.461e-05 deg
M 292.6555165208219 1.638e-05 deg
tp 2459631.001920350618
(2022-Feb-20.50192035)
5.7625e-05 TDB
period 1253.565057816863
3.43
6.3251e-06
1.732e-08
d
yr
n .2871809466570131 1.449e-09 deg/d
Q 2.536913462300103 8.5336e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1068  
   data-arc span      10889 days (29.81 yr)  
   first obs. used      1991-03-20  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:33:02  

Additional Information
 Earth MOID = 1.01889 au 
 Jupiter MOID = 2.42562 au 
 T_jup = 3.600 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456916.5 (2014-Sep-16.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1147026026269385 4.2734e-08  
q 2.014663904395716 9.9111e-08 au
tp 2457124.018479228699
(2015-Apr-11.51847923)
5.2596e-05 TDB
node 339.4580383923836 8.3381e-05 deg
peri 196.5687748707924 8.4654e-05 deg
i 2.391201417540086 4.2598e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1068  
   data-arc span      10889 days (29.81 yr)  
   first obs. used      1991-03-20  
   last obs. used      2021-01-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54851  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 18:33:02  

Additional Information
 Jupiter MOID = 2.42562 au 
 T_jup = 3.600 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.826192001689515E-15 -4.225948731885007E-15 -2.348178069322529E-14 -1.334498855234157E-14 4.789178239121587E-14 1.681886933300136E-17
q -4.225948731885007E-15 9.822892605361699E-15 1.63145289464428E-13 3.022917330682001E-14 -8.327883221863481E-14 2.672754703766206E-17
tp -2.348178069322529E-14 1.63145289464428E-13 2.766375950517067E-9 -5.979435150029629E-12 7.759785759252318E-10 2.145221033836577E-13
node -1.334498855234157E-14 3.022917330682001E-14 -5.979435150029629E-12 6.952396247710054E-9 -6.947975301788691E-9 9.441350888605161E-11
peri 4.789178239121587E-14 -8.327883221863481E-14 7.759785759252318E-10 -6.947975301788691E-9 7.166228270907271E-9 -9.427298882330505E-11
i 1.681886933300136E-17 2.672754703766206E-17 2.145221033836577E-13 9.441350888605161E-11 -9.427298882330505E-11 1.814601441534843E-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 15.66   n/a MPCxxxxx  

21419 Devience           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Stephen Jacob DeVience (b. 1986) is a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors, for his engineering project. He attends the Notre Dame High School for Boys, Niles, Illinois.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050224/MPCPages.arcLast Updated: 2005-02-28

Alternate Designations
 1998 FP72 = 1991 FG2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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