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20584 Brigidsavage (1999 RP159)
Classification: Main-belt Asteroid          SPK-ID: 2020584
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09801736395573128 4.2919e-08  
a 2.922742813597472 1.461e-08 au
q 2.63626326748809 1.2459e-07 au
i 3.105126303536957 3.407e-06 deg
node 102.6743669495298 8.4988e-05 deg
peri 235.4098401761079 8.6659e-05 deg
M 98.42829413361113 1.6507e-05 deg
tp 2458701.498574228172
(2019-Aug-05.99857423)
8.3642e-05 TDB
period 1825.090182239731
5.00
1.3685e-05
3.747e-08
d
yr
n .1972505268524386 1.479e-09 deg/d
Q 3.209222359706853 1.6042e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1194  
   data-arc span      12345 days (33.80 yr)  
   first obs. used      1987-04-27  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52401  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:24:31  

Additional Information
 Earth MOID = 1.62662 au 
 Jupiter MOID = 2.12575 au 
 T_jup = 3.270 
[ 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 14.4   n/a MPO309315  

20584 Brigidsavage           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Brigid Savage mentored a finalist in the 2004 Discovery Channel Youth Science Challenge (DCYSC), a middle school science competition. She teaches at the Feagin Mill Middle School, Warner Robins, Georgia.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20041028/MPCPages.arcLast Updated: 2004-10-29

Alternate Designations
 1999 RP159 = 1998 KA31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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