| Comet | 74P/Smirnova-Chernykh |
| User | Sergey Shurpakov |
| User`s name | Sergey Shurpakov |
| Observation's time (UT) | 2010-05-07 08:52:00 |
| Observation's place | Not set |
| Comparison stars source | ICQ: UO. USNO A2.0 catalogue R magnitudes |
| Method | C |
| Magnitude | 15.5 |
| Mag Error | Not set |
| Coma diameter(') | 0.64 |
| Tail's length | 2.0' |
| Coma degree of condensation | 8 |
| Positional angle of tail (°) | 284 |
| Aperture | 11 cm |
| Telescope focal length (mm) | 550 |
| Telecope Type | R |
| Exposure of single frame (sec) | 360 |
| Phot Region | |
| Software (with version) | ICQ: A41. Astrometrica 4.1 |
| Stars Exposure | Not set |
| Photometric-aperture size | ○ 0.64' |
| Camera | STL |
| Chip | KA1 |
| Chip blooming | |
| Number of images | Not set |
| Magnitude of the comparison star closest in brightness | 14.5 |
| Calibration methods | dark-subtracted (and bias-subtracted) + flat-field corrected (flat-fielded) |
| Pixel size width | 3.5" |
| Pixel size height | 3.5" |
| Light pollution zone | Not set |
| Lm | Not set |
| SQM-L in zenith | Not set |
| Observatory code | |
| Comment | Not set |