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21435 Aharon (1998 FH116)
Classification: Main-belt Asteroid          SPK-ID: 2021435
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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04775665396220632 2.6942e-08  
a 2.297102789440897 7.1019e-09 au
q 2.187400846409949 6.5176e-08 au
i 3.552777638037547 3.1241e-06 deg
node 302.4960579827937 5.2931e-05 deg
peri 119.0259111922812 6.7693e-05 deg
M 9.954351294823642 4.2115e-05 deg
tp 2459361.337517172777
(2021-May-26.83751717)
0.00014872 TDB
period 1271.654319089861
3.48
5.8973e-06
1.615e-08
d
yr
n .2830958025272595 1.3129e-09 deg/d
Q 2.406804732471845 7.441e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1560  
   data-arc span      9893 days (27.09 yr)  
   first obs. used      1994-01-07  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:00:12  

Additional Information
 Earth MOID = 1.2024 au 
 Jupiter MOID = 2.71981 au 
 T_jup = 3.590 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457548.5 (2016-Jun-09.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04873129742966142 2.7174e-08  
q 2.185084109052152 6.5814e-08 au
tp 2458086.423037897456
(2017-Nov-28.92303790)
0.00014309 TDB
node 302.5386908030063 5.298e-05 deg
peri 118.2093518843541 6.7038e-05 deg
i 3.551193612335507 3.1221e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1560  
   data-arc span      9893 days (27.09 yr)  
   first obs. used      1994-01-07  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51157  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 15:00:12  

Additional Information
 Jupiter MOID = 2.71981 au 
 T_jup = 3.590 
Orbit Covariance (6×6)
  e q tp node peri i
e 7.384052982399716E-16 -1.780745034651524E-15 -1.323093438710568E-12 2.254506341014966E-16 -3.62809160215115E-13 -1.968353508438577E-16
q -1.780745034651524E-15 4.331423194051818E-15 3.29410097966945E-12 -6.265135168974335E-16 9.00638319328095E-13 5.626359250513844E-16
tp -1.323093438710568E-12 3.29410097966945E-12 2.047343013892948E-8 -4.656486967222992E-11 5.886763683075283E-9 3.018995535585649E-15
node 2.254506341014966E-16 -6.265135168974335E-16 -4.656486967222992E-11 2.806854303844666E-9 -2.81472722736931E-9 5.876345474563534E-11
peri -3.62809160215115E-13 9.00638319328095E-13 5.886763683075283E-9 -2.81472722736931E-9 4.494077485397191E-9 -5.867197266790256E-11
i -1.968353508438577E-16 5.626359250513844E-16 3.018995535585649E-15 5.876345474563534E-11 -5.867197266790256E-11 9.747242885873201E-12

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.38   n/a E2021B10  

21435 Aharon           Discovered 1998 Mar. 31 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Terri Aharon mentored a finalist in the 2005 Intel Science Talent Search, a science competition for high school seniors. She teaches at the Hunter College High School, New York, New York.
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 FH116 = 1999 RL118 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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