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22836 Leeannragasa (1999 RH89)
Classification: Main-belt Asteroid          SPK-ID: 2022836
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05495801899827226 7.0298e-08  
a 2.514721523827706 9.3106e-09 au
q 2.376517410545819 1.7782e-07 au
i 1.067672588634601 3.9285e-06 deg
node 20.05420791749111 0.00019059 deg
peri 124.5082150888374 0.00019332 deg
M 337.3920443584221 3.0345e-05 deg
tp 2459291.972819767039
(2021-Mar-18.47281977)
0.00012273 TDB
period 1456.576421070668
3.99
8.0893e-06
2.215e-08
d
yr
n .2471549002114006 1.3726e-09 deg/d
Q 2.652925637109593 9.8223e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1203  
   data-arc span      9781 days (26.78 yr)  
   first obs. used      1994-06-03  
   last obs. used      2021-03-14  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50185  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:13:38  

Additional Information
 Earth MOID = 1.38845 au 
 Jupiter MOID = 2.33296 au 
 T_jup = 3.457 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.36   n/a E2021B10  

22836 Leeannragasa           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
LeeAnn Ragasa mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Haaheo Elementary School, Hilo, Hawaii.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20061009/MPCPages.arcLast Updated: 2006-10-14

Alternate Designations
 1999 RH89 = 2000 YH97 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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