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Table 1
NGC 5548 archival observations log.
| Observatory | Grating | ID | Start Time (UTC) | Exp. Time | Labela |
| (yyyy-mm-dd hh:mm:ss) | (ks) | ||||
|
|
|||||
| XMM-Newton | RGS | 0109960101 | 2000-12-24 22:12:11 | 26.1 | R00x |
| XMM-Newton | RGS | 0089960301 | 2001-07-09 15:45:59 | 95.8 | R01y |
| XMM-Newton | RGS | 0089960401 | 2001-07-12 07:34:56 | 39.1 | R01z |
|
|
|||||
| Chandra | LETG | 330 | 1999-12-11 22:51:20 | 86.0 | L99 |
| Chandra | HETG | 837 | 2000-02-05 15:37:29 | 82.3 | H00 |
| Chandra | HETG | 3046 | 2002-01-16 06:12:34 | 153.4 | H02 |
| Chandra | LETG | 3045 | 2002-01-18 15:57:02 | 169.4 | L02b |
| Chandra | LETG | 3383 | 2002-01-21 07:33:57 | 171.0 | L02b |
| Chandra | LETG | 5598 | 2005-04-15 05:18:18 | 116.4 | L05b |
| Chandra | LETG | 6268 | 2005-04-18 00:31:12 | 25.2 | L05b |
| Chandra | LETG | 7722 | 2007-08-14 20:57:57 | 99.6 | L07b |
| Chandra | LETG | 8600 | 2007-08-17 03:54:51 | 37.2 | L07b |
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