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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 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08302078754615992 8.201e-08  
a 2.968636921867236 4.1434e-08 AU
q 2.72217834667521 2.4611e-07 AU
i 8.679587133911609 9.3641e-06 deg
node 211.7211799052797 5.4531e-05 deg
peri 151.3167907420056 7.8502e-05 deg
M 5.703039448528684 5.8545e-05 deg
tp 2456770.903665393718
(2014-Apr-23.40366539)
0.00030367 JED
period 1868.245968561603
5.11
3.9113e-05
1.071e-07
d
yr
n .1926941131189329 4.0342e-09 deg/d
Q 3.215095497059262 4.4873e-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      .58985  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Aug-26 21:38:13  

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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