Important notice about reduced STEREO
STEREO Eclipse Support
There have been a number of questions about possible STEREO support for the
upcoming solar eclipse on August 1, 2008. This page summarizes the
observations that STEREO will be making during the eclipse.
In addition to its regular synoptic program, SECCHI will take higher cadence
observations in EUVI and COR1 between 08:00 to 12:00 UT. These additional
observations will be identical to those normally scheduled between 18:00 to
22:00 UT, except that some adjustment will be made to the 304 A exposure time
to bring out the bases of coronal streamers. Images will be taken at the
following times, repeated with a two-hour period.
- EUVI 171 A
HH:01:00, HH:02:15, HH:03:30 etc (75 seconds cadence)
- EUVI 195 A
HH:00:35, HH:05:30, HH:10:30 etc (5 minutes cadence)
note that the first image of every two-hour block is offset by 5
- EUVI 284 A
HH:01:30, HH:06:30, HH:11:30 etc (5 minutes cadence)
- EUVI 304 A
HH:01:15, HH:03:45. HH:06:15 etc (2.5 minutes cadence)
- COR1 pB HH:00:08, HH:05:00, HH:10:00 etc (5 minutes cadence)
note that the first image of every two-hour block is offset by 8 seconds,
also note that times quoted are the start time of a three-image sequence that
takes about 30 seconds to complete
- COR2 total B HH:07:30, HH:37:30 etc (30 minutes cadence)
times quoted are the start times of a sum of multiple images that takes about
36 seconds to complete
- COR2 pB
HH:22:00, HH:52:00 etc (30 minutes cadence)
interleaved with total B for 15
minutes combined B/pB cadence, note that times quoted are the start times of a
sum of multiple images at each of three polarization angles that takes about 90
seconds to complete
IMPACT, PLASTIC, and SWAVES will run their normal synoptic programs.
Information about the total solar eclipse of August 1, 2008 is available on the
NASA Eclipse Web Site.
SOHO plans for the eclipse.
Last Revised: Tuesday, 22-Jul-2008 16:17:10 EDT
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