SUMER study #2115: He II (958) raster scan at coronal hole
- date, time: 19.Oct.99, 08:54 - 14:57 UT
- field of view: 489 - 327 arcsec E, 18 arcsec S - 282 arcsec N
- slit: 1.0 arcsec x 300 arcsec (number 2)
- raster step size: 1.13 arcsec (3 elementary steps)
- exposure time: 150 seconds
- telemetry: 145 images of 512 spectral x 360 spatial pixels (format 38)
- compression: quasilog-min-max (method 5)
- wavelength: 958.000 Å on reference pixel 349 of Detector A
- rotation compensation: after complete scan, corresponding to
0.75 arcsec after 319.234 seconds
- binning: no spectral, no spatial
- on-board flat field correction: no
Remarks: The scan was performed in west-east direction, therefore the effective
field of view becomes approx. 212 arcsec.
Complete spectral window
SUMER field of view in EIT image (19:19 UT)
line = *, continuum = +
He II 958.6 (47 000 K)
continuum and line intensity, line shift and width
line = *, continuum = +
H I Ly4 949.7 (10 000 K)
continuum and line intensity, line shift and width
line = *, continuum = +
O I 948.69 (10 000 K)
continuum and line intensity, line shift and width
IED, 05.Jul.00