Table 1: SUMER observations of equatorial CHs and QS.
Item Date Time Solar coordinate Wavelength Steps Detector Exposure
  1999 UTC X ( $^{\prime\prime}$), Y ( $^{\prime\prime}$) (Å) ( $^{\prime\prime}$) and Slita time (s)
CH 1 11 08:05-12:05 141 E-249 E, 290 N 1532-1552 1.13 A 2 150
March 12 21:00-01:01 234 W-126 W, 330 N 1234-1254 1.13 A 2 150
  13 01:05-05:05 264 W-156 W, 330 N 912-935 1.13 A 2 150
  11 18:50-22:50 31 E-139 E, 280 N 1157-1179 1.13 A 2 150
  11 12:09-13:09 223 E-88 E, 280 N 1020-1045 1.13 A 2 30
  13 06:10-11:43 240 W, 320 N ref-specb 0 A 2 325
CH 2 8 02:10-02:51 50 E-40 W, 95 N 1020-1045 1.12 A 2 30
November 8 02:52-08:05 5 E, 95 N ref-specb 0 A 4 300
QS 8 15:20-19:21 64 W-44 E, 130 N 1532-1552 1.13 A 2 150
March 8-9 23:13-03:14 64 W-44 W, 130 N 1234-1254 1.13 A 2 150
  9 07:22-11:23 64 W-44 W, 130 N 913-935 1.13 A 2 150
  9 03:18-07:18 64 W-44 E, 120 N 1157-1179 1.13 A 2 150
  11 01:25-02:25 67 E-67 W, 0 1020-1045 1.13 A 2 30
  11 02:31-07:58 0, 0 ref-specb 0 A 2 30
a Slit 2: 1 $^{\prime\prime}$$~\times~$300 $^{\prime\prime}$; Slit 4: 1 $^{\prime\prime}$$~\times~$120 $^{\prime\prime}$.
b Reference spectrum covering the wavelength range 780 Å to 1600 Å.

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