Table 2
Observational circumstances.
| Comet | UT date | r | ṙ | Δ |
|
Exptime | Offset | Slit | Slit | Seeing | Seeing |
| (au) | (km s-1) | (au) | (km s-1) | (s) | (′′) | ( ) |
(km × km) | (′′) | (km) | ||
|
|
|||||||||||
| C/2002 T7 (LINEAR) | 2004/05/06, 10:15 | 0.68 | 15.83 | 0.61 | –65.62 | 1080 | 5 | 0.44 × 12.00 | 195 × 5 309 | 1.0 | 458 |
| C/2002 T7 (LINEAR) | 2004/05/26, 23:47 | 0.94 | 25.58 | 0.41 | 54.98 | 2678 | 0 | 0.30 × 12.00 | 89 × 3 568 | 0.7 | 198 |
| C/2002 T7 (LINEAR) | 2004/05/27, 01:06 | 0.94 | 25.59 | 0.42 | 55.20 | 1800 | 0 | 0.30 × 12.00 | 91 × 3 655 | 0.7 | 206 |
| C/2002 T7 (LINEAR) | 2004/05/28, 23:24 | 0.97 | 25.90 | 0.48 | 59.15 | 487 | 70 | 0.44 × 12.00 | 153 × 4 178 | 1.0 | 354 |
| C/2002 T7 (LINEAR) | 2004/05/29, 00:09 | 0.97 | 25.90 | 0.48 | 59.26 | 3600 | 70 | 0.44 × 12.00 | 153 × 4 178 | 1.0 | 205 |
| 73P-C SW 3 | 2006/05/27, 09:28 | 0.97 | –4.17 | 0.15 | 12.31 | 4800 | 0 | 0.60 × 12.00 | 65 × 2 611 | 1.4 | 151 |
| 8P/Tuttle | 2008/01/16, 01:00 | 1.04 | –4.29 | 0.36 | 21.64 | 3600 | 0 | 0.44 × 10.00 | 115 × 1 305 | 1.0 | 261 |
| 8P/Tuttle | 2008/01/28, 00:58 | 1.03 | 0.40 | 0.52 | 24.72 | 3900 | 0 | 0.44 × 10.00 | 166 × 3 771 | 0.9 | 319 |
| 8P/Tuttle | 2008/02/04, 00:57 | 1.03 | 3.16 | 0.62 | 24.16 | 3900 | 0 | 0.44 × 10.00 | 198 × 4 497 | 1.0 | 450 |
| 103P/Hartley 2 | 2010/11/05, 07:18 | 1.06 | 2.53 | 0.16 | 7.08 | 2900 | 0 | 0.44 × 12.00 | 51 × 1 393 | 1.3 | 148 |
| 103P/Hartley 2 | 2010/11/05, 08:19 | 1.06 | 2.55 | 0.16 | 7.19 | 3200 | 0 | 0.44 × 12.00 | 57 × 1 567 | 1.8 | 205 |
| 103P/Hartley 2 | 2010/11/10, 07:17 | 1.07 | 4.05 | 0.18 | 7.96 | 2900 | 0 | 0.44 × 12.00 | 57 × 1 567 | 0.8 | 102 |
| 103P/Hartley 2 | 2010/11/10, 08:19 | 1.07 | 4.07 | 0.18 | 8.07 | 3200 | 0 | 0.44 × 12.00 | 51 × 1 393 | 0.8 | 97 |
| 103P/Hartley 2 | 2010/11/11, 05:53 | 1.08 | 4.33 | 0.19 | 7.94 | 4500 | 30 | 0.44 × 12.00 | 60 × 1 654 | 0.6 | 76 |
| 103P/Hartley 2 | 2010/11/11, 07:18 | 1.08 | 4.35 | 0.19 | 8.08 | 3600 | 20 | 0.44 × 12.00 | 60 × 1 654 | 0.6 | 81 |
| 103P/Hartley 2 | 2010/11/11, 08:16 | 1.08 | 4.36 | 0.19 | 8.19 | 2400 | 10 | 0.44 × 12.00 | 60 × 1 654 | 0.6 | 82 |
| 103P/Hartley 2 | 2010/11/11, 08:57 | 1.08 | 4.37 | 0.19 | 8.27 | 900 | 0 | 0.44 × 12.00 | 60 × 1 654 | 0.7 | 92 |
Notes. r is the heliocentric distance, Δ is the geocentric distance. ṙ and are the heliocentric and geocentric velocities. Exptime corresponds to the exposure time in seconds. Offset (arc seconds) corresponds to the distance between the slit and the center of the cometary nucleus. The slit-tail orientation provides the direction of the slit with respect to the cometary tail. Slit is the size of the entrance slit of the spectrograph in arc seconds. The next column gives the projected area covered by the slit. The last two columns present the seeing values in arc seconds and in km during the observations.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.