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NSO/SP CORONALERTS Available by ftp (1Jun93)
(from NSO, NOAO Newsletter No. 34, 1 June 1993)

NSO/SP CORONALERTs are now available by anonymous ftp to ftp.sunspot.noao.edu.
They are in directory pub/corona.maps. The latest alert is in file CORONALERT,
and previous alerts are in CORONALERT.SAVE. They are still available by
e-mail subscription. A short description follows.

Daily observations at Sacramento Peak are obtained with the Emission Line
Coronal Photometer in Fe XIV (5303 AŹ), Fe X (6374 ), and Ca XV (5694 A).
Most alerts are concerned with Ca XV emission, since this 3 MK line is
associated with regions that have a high potential for energetic flares. Ca XV
alerts will show the emission over the last 14 days; alerts will only be sent
on days on which the emission was moderate or higher (> 1.25 millionths).
Coronal Holes as seen in Fe XIV may also be reported. Comments or requests to
be added to the distribution list should be sent to raltrock@noao.edu or
NOAO::RALTROCK.

Dick Altrock

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