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Table 1
Log of spectroscopic observations of V2468 Cyg.
| Date | UT | JD | Exp. | Inst. | Range |
| s | nm | ||||
|
|
|||||
| 2008 | |||||
| March8 | 18:42 | 4534.29 | 1800 | MALLS | 405–672 |
| March 10 | 18:57 | 4536.30 | 1800 | ″ | ″ |
| March 11 | 18:42 | 4537.29 | 1800 | ″ | ″ |
| March 11 | 19:57 | 4537.34 | 1800 | ″ | 571–613 |
| March 12 | 4:05 | 4537.67 | 60 | B&C | 340–580 |
| March 12 | 4:08 | 4537.68 | 600 | ″ | ″ |
| March 12 | 18:14 | 4538.27 | 1800 | MALLS | 405–672 |
| March 13 | 4:21 | 4538.68 | 60 | B&C | 453-694 |
| March 13 | 4:24 | 4538.68 | 600 | ″ | ″ |
| March 15 | 17:39 | 4541.25 | 1800 | MALLS | 405–672 |
| March 18 | 4:18 | 4543.69 | 900 | B&C | 338–576 |
| March 23 | 3:22 | 4548.65 | 60 | ″ | 522–765 |
| March 23 | 3:24 | 4548.65 | 600 | ″ | ″ |
| March 23 | 4:15 | 4548.68 | 900 | ″ | 330–568 |
| April20 | 2:38 | 4576.62 | 1800 | Ech | 435–612 |
| April28 | 1:53 | 4584.59 | 2400 | ″ | ″ |
| July8 | 14:35 | 4656.15 | 3000 | MALLS | 407–674 |
| July24 | 14:31 | 4672.13 | 3600 | ″ | 408–675 |
| July24 | 14:59 | 4672.14 | 1800 | ″ | ″ |
| August 9 | 14:46 | 4688.14 | 3600 | ″ | ″ |
| Oct.9 | 12:27 | 4749.04 | 3600 | ″ | 407–674 |
| Nov.13 | 9:26 | 4783.91 | 3000 | ″ | 406–673 |
| 2009 | |||||
| June3 | 0:52 | 4985.56 | 3600 | B&C | 336–575 |
| July21 | 1:18 | 5033.57 | 3000 | ″ | 340–567 |
| Sep.27 | 21:43 | 5102.41 | 600 | ″ | 566–808 |
| Sep.27 | 21:54 | 5102.43 | 2400 | ″ | ″ |
| Sep.28 | 21:33 | 5103.42 | 3000 | ″ | 340–579 |
| Oct.15 | 22:45 | 5120.46 | 2400 | ″ | 350–588 |
| Oct.16 | 22:34 | 5121.45 | 1800 | ″ | 553–795 |
| Oct.26 | 20:27 | 5131.37 | 3000 | ″ | 350–588 |
| Oct.29 | 20:36 | 5134.37 | 1800 | ″ | 560–801 |
Notes. JD: Julian date – 2 450 000. UT: Universal time at start of exposure.
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