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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08257342968488465 7.0791e-08  
a 2.969905243135116 3.1755e-08 au
q 2.724669981370328 1.9952e-07 au
i 8.679501742121626 8.2387e-06 deg
node 211.6974166023462 3.9491e-05 deg
peri 151.7464970296751 6.1244e-05 deg
M 120.9420921926978 4.5874e-05 deg
tp 2456772.460017295246
(2014-Apr-24.96001730)
0.00023784 JED
period 1869.443381328924
5.12
2.9983e-05
8.209e-08
d
yr
n .1925706890058838 3.0885e-09 deg/d
Q 3.215140504899904 3.4377e-08 au
  Orbit Determination Parameters
   # obs. used (total)      791  
   data-arc span      6745 days (18.47 yr)  
   first obs. used      1997-06-29  
   last obs. used      2015-12-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54956  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:53:58  

Additional Information
 Earth MOID = 1.72504 au 
 Jupiter MOID = 2.20781 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 14.0 mag n/a MPO319381  

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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