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23783 Alyssachan (1998 QG12)
Classification: Main-belt Asteroid          SPK-ID: 2023783
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07408001258714553 8.2862e-08  
a 2.351882842807829 1.9379e-08 AU
q 2.177655332209134 1.9154e-07 AU
i 6.060417557691991 8.899e-06 deg
node 207.6277324117102 5.6145e-05 deg
peri 11.45860010558622 6.9701e-05 deg
M 284.0751406743123 4.5198e-05 deg
tp 2457278.345551541795
(2015-Sep-12.84555154)
0.00016672 JED
period 1317.41302444804
3.61
1.6283e-05
4.458e-08
d
yr
n .2732628213925773 3.3774e-09 deg/d
Q 2.526110353406525 2.0814e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      6118 days (16.75 yr)  
   first obs. used      1997-04-28  
   last obs. used      2014-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56839  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 23:37:48  

Additional Information
 Earth MOID = 1.17192 AU 
 T_jup = 3.546 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO266079  

23783 Alyssachan           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro.
Alyssa Lauren Chan (b. 1991) is a finalist in the 2007 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochem, medicine, health, and microbiology project. She attends the Rhoades School, Encinitas, California.
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

[ show close-approach data ]
Alternate Designations
 1998 QG12 = 2000 AP104 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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