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23821 Morganmonroe (1998 QZ69)
Classification: Main-belt Asteroid          SPK-ID: 2023821
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08288184701884796 7.6818e-08  
a 2.96825032896395 3.6471e-08 AU
q 2.722236259285115 2.2546e-07 AU
i 8.680085145852535 9.0711e-06 deg
node 211.7211417096115 4.8155e-05 deg
peri 151.3255858103684 7.0548e-05 deg
M 44.24514159407605 5.1963e-05 deg
tp 2456770.931496967848
(2014-Apr-23.43149697)
0.00026903 JED
period 1867.881039906988
5.11
3.4426e-05
9.425e-08
d
yr
n .1927317598437245 3.5522e-09 deg/d
Q 3.214264398642785 3.9494e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      595  
   data-arc span      6304 days (17.26 yr)  
   first obs. used      1997-06-29  
   last obs. used      2014-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .57288  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Oct-09 14:48:59  

Additional Information
 Earth MOID = 1.72449 AU 
 T_jup = 3.241 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.9 mag n/a MPO267795  

23821 Morganmonroe           Discovered 1998 Aug. 24 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Morgan McKay Monroe (b. 1992) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her physical science project. She attends the Episcopal High School, Jacksonville, Florida.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20071026/MPCPages.arcLast Updated: 2007-10-28

Alternate Designations
 1998 QZ69 = 1997 MQ7 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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