Reference data-sets#
This page identifies certain reference data-sets, not necessarily for science reasons but more for unusual modes that present special cases for testing analysis software.
Use of nexp_prp#
EIS has the capability of doing multiple exposures for each slit position (keyword nexp_prp>1), but this feature has rarely been used.
eis_l0_20091214_002533 - 100"x400" raster with two exposures of 150s at each slit position.
eis_l0_20070307_220220 - 10"x512" raster with two exposures of 30s and 120s
Slot data-sets#
40" slot raster#
Slot rasters are very widely used for context data (particularly PRY_slot_context_v3 and PRY_slot_contextLITE). Repeats of slot rasters are less common.
eis_l0_20090509_182435 - 24 repeats of PRY_slot_contextLITE for AR at limb
40" slot sit-and-stare#
266" slot raster#
266" slot sit-and-stare#
Flare and bright point trigger studies#
Long exposure times#
The longest exposure time that has been used is 600 seconds.
eis_l0_20130329_100736 - a 20"x512" raster run as part of HOP 226
Lunar eclipses#
Occasionally we see lunar eclipses from Hinode, and these can be useful for studying scattered light. Note however that the Moon moves very fast in these data-sets (around 200-300 arcsec per minute). The list below is not complete.
7-Feb-2008
1-Aug-2008
26-Jan-2009
15-Jan-2010 - see EIS Software Note #12
11-Jul-2010
1-Jun-2011
3-Nov-2013
23-Oct-2014
21-Aug-2017 - Hara (2019, ApJ)
More information about the eclipses is available from the Hinode Daily Events page. For example, see the page for 26-Jan-2009. To check other dates, use the same link, but change the date in the URL.
Venus transit#
Hinode saw one Venus transit during the mission, from 5 to 6 June 2012. EIS mainly used the 40" slot, but there were two narrow slit data-sets obtained at the east and west limbs. Dave Williams prepared a Youtube movie showing the EIS data.
The EIS studies used were SI_Venus_slot_v1, SI_Venus_slot_v2 and SI_Venus_slit and SI_Venus_slit_v2, which were run between 21:05 UT on 5-Jun and 05:50 UT on 6-Jun.