| Name | Relative Rank | Comment |
|---|---|---|
| W1 | B | Additional noise may appear at the center and edge. |
| W2 | AA | none |
| W3 | AA | none |
| W4 | A | none |
| W5 | A | none |
| W6 | AA | Most stable |
| W7 | C | Additional noise often appears at the center (*) |
| W8 | C | Additional noise appears (*) |
(*) Please use mainly for pointing and do not assign important lines only in this spectrometer.
| Name | Relative Rank | Comment |
|---|---|---|
| H1 | AA | none |
| H2 | AA | none |
| H3 | AA | none |
| H4 | AA | none |
| H5 | AA | none |
| H6 | AA | none |
| H7 | AA | none |
| H8 | AA | none |