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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 5 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08302081892400007 7.9314e-08  
a 2.968636929605327 4.0141e-08 AU
q 2.722178260621464 2.3727e-07 AU
i 8.679583446836196 9.089e-06 deg
node 211.7212158602551 5.1773e-05 deg
peri 151.3167053050388 7.4568e-05 deg
M 5.703084850487208 5.6173e-05 deg
tp 2456770.903429661259
(2014-Apr-23.40342966)
0.00029135 JED
period 1868.245975866298
5.11
3.7893e-05
1.037e-07
d
yr
n .1926941123655141 3.9084e-09 deg/d
Q 3.215095598589191 4.3474e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      564  
   data-arc span      5883 days (16.11 yr)  
   first obs. used      1997-06-29  
   last obs. used      2013-08-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .58292  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:38:26  

Additional Information
 Earth MOID = 1.72298 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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