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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 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07366620442795843 6.708e-08  
a 2.35089234368307 1.4899e-08 au
q 2.17771102770519 1.6122e-07 au
i 6.062572560236881 6.7134e-06 deg
node 207.6050310050163 4.7321e-05 deg
peri 11.66531566472405 5.9938e-05 deg
M 33.23051188278072 3.788e-05 deg
tp 2457278.970399664471
(2015-Sep-13.47039966)
0.00013847 JED
period 1316.580866256861
3.60
1.2516e-05
3.427e-08
d
yr
n .2734355399099086 2.5993e-09 deg/d
Q 2.524073659660949 1.5996e-08 au
  Orbit Determination Parameters
   # obs. used (total)      972  
   data-arc span      6625 days (18.14 yr)  
   first obs. used      1997-04-28  
   last obs. used      2015-06-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55705  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jul-06 12:33:49  

Additional Information
 Earth MOID = 1.16983 au 
 Jupiter MOID = 2.44289 au 
 T_jup = 3.547 
[ 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 14.3 mag n/a MPO324529  

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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