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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 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07408003237775476 8.0392e-08  
a 2.351882847264984 1.8841e-08 AU
q 2.177655289790908 1.8664e-07 AU
i 6.060415541353687 8.6814e-06 deg
node 207.6277260309231 5.5812e-05 deg
peri 11.45861161997709 6.9215e-05 deg
M 284.0751331198829 4.4533e-05 deg
tp 2457278.345579976919
(2015-Sep-12.84557998)
0.00016416 JED
period 1317.41302819307
3.61
1.5831e-05
4.334e-08
d
yr
n .2732628206157691 3.2837e-09 deg/d
Q 2.52611040473906 2.0237e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      843  
   data-arc span      6391 days (17.50 yr)  
   first obs. used      1997-04-28  
   last obs. used      2014-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56916  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Nov-10 13:43:33  

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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