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19452 Keeney (1998 FX125)
Classification: Main-belt Asteroid          SPK-ID: 2019452
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05149587610747432 3.7928e-08  
a 2.265149761166481 7.1901e-09 au
q 2.148503889700577 8.8671e-08 au
i 5.85858178074241 3.1353e-06 deg
node 278.379283695971 3.6873e-05 deg
peri 245.1446038705932 5.0358e-05 deg
M 264.6862933962262 3.4116e-05 deg
tp 2459530.183085633026
(2021-Nov-11.68308563)
0.00011816 TDB
period 1245.213464641299
3.41
5.9289e-06
1.623e-08
d
yr
n .2891070569203192 1.3765e-09 deg/d
Q 2.381795632632386 7.5604e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1827  
   data-arc span      10960 days (30.01 yr)  
   first obs. used      1991-03-11  
   last obs. used      2021-03-13  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .46641  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:54:11  

Additional Information
 Earth MOID = 1.16401 au 
 Jupiter MOID = 2.61726 au 
 T_jup = 3.608 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.63   n/a E2021B10  

19452 Keeney           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Chelsea Ray Keeney (b. 1985) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her medicine and health project. She attends the School of the Osage, Kaiser, Missouri, U.S.A.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040830/MPCPages.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 FX125 = 1991 EA9 = 1999 RO147 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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