Mauna Loa Solar Observatory
CME Event Images

Available Event Images

[1994] [1995] [1997] [1998]

1980 through 1993

• CME data not yet available.

• 11 Jan 1994 [DOY 011]

• 23 Jan 1995 [DOY 023]
• 02 Mar 1995 [DOY 061]
• 21 Mar 1995 [DOY 080]
• 22 Apr 1995 [DOY 112]
• 04 Jun 1995 [DOY 155]
• 18 Aug 1995 [DOY 230]
• 04 Sep 1995 [DOY 247]
• 17 Oct 1995 [DOY 290]
• 19 Nov 1995 [DOY 323]

1996

• CME data not yet available.

• 09 Jun 1997 [DOY 160]
• 16 Jun 1997 [DOY 167]
• 25 Jul 1997 [DOY 206]
• 09 Sep 1997 [DOY 252]
• 29 Sep 1997 [DOY 272]
• 23 Oct 1997 [DOY 296]
• 01 Dec 1997 [DOY 335]
• 29 Dec 1997 [DOY 363]

• 22 Feb 1998 [DOY 053]
• 24 Feb 1998 [DOY 055]
• 08 Mar 1998 [DOY 067]

Image Types

1. Polarization Brightness (pB) images [Mark-III K-coronameter]
These images are white light pB [polarization*Brightness] intensities. The units [Bsun] are relative to the average solar disk brightness.

• `Computational' images
  These are ordinarily available in either direct or differenced versions, and are in a 16-bits/pixel FITS file format. They are used primarily for computations in which the calibrated intensity units [Bsun] are needed. Therefore, they are available only via FTP, and not via web links.

• `Display' images
  An artificial `vignetting' has been applied in these versions of the pB images to reduce the radial density gradient in the corona. These images maximize the contrast over the field of view and provide superior viewing of mass ejections. These data are available in 8-bit GIF format as either direct or differenced versions.
  For subtraction images, a pre-event image is subtracted from each event image, thereby increasing the visibility of faint mass ejection features. Cyan and blue hues indicate a negative intensity difference, and red or yellow tones represent a positive intensity difference (i.e., event image is brighter than the pre-event image).

2. H-alpha images [Digital Prominence Monitor: DPM or PICS]
In some cases, there may also be corresponding H-Alpha [530.3 nm] disk and/or limb images for an event.

Coronal Mass Ejection (CME) Catalogues [Mark-III]

Coronal Mass Ejection event catalogues are currently available only in Postscript format.
Click on the catalogue listing that you desire:

• 1995 Mark-III CME Catalogue

CME catalogues for other years will appear as they become available.

FTP Access

NOTE: FTP IS THE FASTEST WAY TO TRANSFER MULTIPLE IMAGES.

If you wish to transfer more than a few images, please read our anonymous File Transfer Protocol (FTP) instructions . However, single file downloads from the FTP data directories may also be performed here.

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