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Blackouts and
Whiteouts, in broken lines, circle-like shapes, or over the whole picture. They are caused by the electronics box. There has never been a firmware update, since it was judged as too sensitive changing the
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Black and white pixels, occurring in patterns, without pattern or alone. Those "missing blocks" are telemetry dropouts, caused by radio interference or a disturbance in the data transfer to
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LASCO C3, the clear coronagraph picture, has a shutter time of about 19 seconds. LASCO C2, the orange picture, has a
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coronagraph imaging from 1.1 to 3 solar radii, non-functional since the 24 June 1998 SOHO Mission
Interruption
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The LASCO instruments are not the newest. They were built in the late 1980s, when a
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C2 - a white light coronagraph imaging from 1.5 to 6 solar radii (orange)
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C3 - a white light coronagraph imaging from 3.7 to 30 solar radii (blue)
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309:(1–2). Solar Physics, Volume 162, Issue 1-2, pp. 357-402: 362.
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was something very special. Sometimes disturbances do happen.
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299:"The Large Angle Spectroscopic Coronagraph (LASCO)"
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180:satellite (SOHO) consists of three solar
170:Large Angle and Spectrometric Coronagraph
156:Learn how and when to remove this message
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272:Extreme ultraviolet Imaging Telescope
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385:Latest LASCO C3 picture
390:Latest LASCO C3 movie
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380:Detailed description
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