TAIWAN OSCILLATION NETWORK

The Taiwan Oscillation Network (TON) is a ground-based network to meas ure solar intensity oscillations to study the internal structure of th e Sun. K-line full-disk images of 1000 pixels diameter are taken at a rate of one image per minute. Such data would provide information on p -modes with l as high as 1000. The TON will consist of six identical t elescope systems at proper longitudes around the world. Three telescop e systems have been installed at Teide Observatory (Tenerife), Huairou Solar Observing Station (near Beijing), and Big Bear Solar Observator y (California). The telescopes at these three sites have been taking d ata simultaneously since October of 1994. An l - v diagram derived fro m 512 images is included to show the quality of the data.