European Helio- and Asteroseismology Network (HELAS)

    Local Helioseismology Network Activity








    South Pole Data

    Three datacubes observed in Ni, K, and Na. The Na (589.0 nm) and K (769.9 nm, formed 200-300km lower than sodium line) observed with MOTH from the South Pole from 2003-01-20, 00:59 with a 10 second sampling rate for ~ 17 hours. The Ni line is MDI data interpolated to match the higher sampling rate of the MOTH data. The Ni line is formed around 200km above tau_500 =0, above this is K and Na is the line formed highest in the atmosphere.

    Paper: Finsterle et. al, 2004, Sol. Phys, NASA ADS abstract link. The paper is essential to work with the data as the headers do not contain particular information.

    Time: 17 hours 48 minutes, 2003.01.20_00:59 - 2003.01.20_18:46 UT

    Resolution: ~ 4 arcsec / pixel

    Dimensions: 123 x 123 x 6416 pixels

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