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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08204386751400645 6.4954e-08  
a 2.972277250763464 3.055e-08 au
q 2.728420129786931 1.7871e-07 au
i 8.683636997117699 5.7757e-06 deg
node 211.6491716241451 3.7413e-05 deg
peri 152.2887815396222 5.2382e-05 deg
M 158.9067698936459 3.8149e-05 deg
tp 2456774.324518632494
(2014-Apr-26.82451863)
0.00019542 JED
period 1871.683462519335
5.12
2.8857e-05
7.901e-08
d
yr
n .1923402152174976 2.9654e-09 deg/d
Q 3.216134371739997 3.3056e-08 au
  Orbit Determination Parameters
   # obs. used (total)      910  
   data-arc span      6870 days (18.81 yr)  
   first obs. used      1997-06-29  
   last obs. used      2016-04-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .53402  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 13:41:56  

Additional Information
 Earth MOID = 1.72946 au 
 Jupiter MOID = 2.20668 au 
 T_jup = 3.240 
[ 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 14.1 mag n/a MPO365535  

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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