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22599 Heatherhall (1998 HR122)
Classification: Main-belt Asteroid          SPK-ID: 2022599
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1266071359086674 2.9148e-08  
a 2.335468789722435 6.8746e-09 au
q 2.039781775251596 6.7261e-08 au
i 6.673649530658547 3.4068e-06 deg
node 132.63670198415 2.7673e-05 deg
peri 162.2019703786781 3.1127e-05 deg
M 62.17986809112575 1.3575e-05 deg
tp 2458975.331920126001
(2020-May-05.83192013)
4.919e-05 TDB
period 1303.645556723342
3.57
5.7561e-06
1.576e-08
d
yr
n .2761486802477545 1.2193e-09 deg/d
Q 2.631155804193274 7.745e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1314  
   data-arc span      9856 days (26.98 yr)  
   first obs. used      1994-02-13  
   last obs. used      2021-02-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51741  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:08:04  

Additional Information
 Earth MOID = 1.02306 au 
 Jupiter MOID = 2.54851 au 
 T_jup = 3.548 
[ 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 15.60   n/a E2021B10  

22599 Heatherhall           Discovered 1998 Apr. 23 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Heather Hall mentored a finalist in the 2006 Intel Science Talent Search (STS), a science competition for high school seniors. She teaches at the Sanford H. Calhoun High School, Merrick, 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: 20060314/MPCPages.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1998 HR122 = 1999 TM242 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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