Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Near-Earth Object (NEO) Program
Search JPL
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
JPL Small-Body Database Browser
Search: [ help ]  
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 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07447149548544198 8.289e-08  
a 2.351171284431826 1.9033e-08 AU
q 2.176076042737761 1.9178e-07 AU
i 6.060993286966222 8.9017e-06 deg
node 207.6694463590948 5.6141e-05 deg
peri 11.60094266624493 6.9582e-05 deg
M 229.2606637472861 4.4766e-05 deg
tp 2457278.720958162082
(2015-Sep-13.22095816)
0.00016592 JED
period 1316.815197880247
3.61
1.599e-05
4.378e-08
d
yr
n .273386881150455 3.3197e-09 deg/d
Q 2.526266526125892 2.0451e-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 = 1.16905 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2014-Jul-24 15:22 UT
(server date/time)  
NASA Home Page
Site Manager:   Donald K. Yeomans
Webmaster  Alan B. Chamberlin