• Wavelength ranges (Å) - 1024 pixels each

  • NIS1 307.60 - 379.40 ( - 0.4 Å after loss)
  • NIS2 513.03 - 632.69 ( - 1.4 Å after loss)

• Resolution (line 1/e width) - pre-loss

  • 0.18A, 2.56 pixels (NIS1) {1 pixel ~ 0.070 Å}
  • 0.32A, 2.73 pixels (NIS2) {1 pixel ~ 0.117 Å}

There appears to be very little difference in spectral resolution between using the 2" and 4" slits, as is illustrated in this plot

• Total counts in line (per Y pixel - Quiet Sun)

  • MgIX (368 Å) 6 cts/sec (line peak ~ 1 cnt/s)
  • OV (629 Å) 26 cts/sec (line peak ~ 5 cnt/s)