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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07447145829541314 8.3218e-08  
a 2.351171288625992 2.0306e-08 AU
q 2.176076134059709 1.9319e-07 AU
i 6.060991360397257 8.9177e-06 deg
node 207.6694665341971 5.8418e-05 deg
peri 11.60090918322405 7.3079e-05 deg
M 229.2606761019719 4.802e-05 deg
tp 2457278.720914250486
(2015-Sep-13.22091425)
0.00017818 JED
period 1316.815201403772
3.61
1.7059e-05
4.67e-08
d
yr
n .2733868804189282 3.5416e-09 deg/d
Q 2.526266443192275 2.1818e-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      .57687  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Feb-19 18:36:28  

Additional Information
 Earth MOID = 1.16905 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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