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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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07408001981643632 6.7041e-08  
a 2.35188284318456 1.4984e-08 AU
q 2.177655315555511 1.613e-07 AU
i 6.060411211736914 6.7116e-06 deg
node 207.6276998050272 4.7342e-05 deg
peri 11.45863239560581 5.9817e-05 deg
M 284.0751407287509 3.7585e-05 deg
tp 2457278.345551409337
(2015-Sep-12.84555141)
0.00013769 JED
period 1317.413024764581
3.61
1.259e-05
3.447e-08
d
yr
n .2732628213269194 2.6114e-09 deg/d
Q 2.526110370813609 1.6094e-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 = 1.17192 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 14.3 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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