| Comet | C/2011 F1 (LINEAR)                       | 
| User | Sergey Shurpakov | 
| User`s name | Sergey  Shurpakov | 
| Observation's time (UT) | 2012-05-25 23:16:00 | 
| Observation's place | Not set | 
| Comparison stars source | ICQ: U0.But this catalogue hasn`t been submited into database | 
| Method | C | 
| Magnitude | 14.0 | 
| Mag Error | Not set | 
| Coma diameter(') | 0.36 | 
| Tail's length | Not set | 
| Coma degree of condensation | 5.5 | 
| Positional angle of tail (°) | Not set | 
| Aperture | 41 cm | 
| Telescope focal length (mm) | 1640 | 
| Telecope Type | L | 
| Exposure of single frame (sec) | 30 | 
| Phot Region |    | 
| Software (with version) | ICQ: A32. Astrometrica   3.25 | 
| Stars Exposure | Not set | 
| Photometric-aperture size | ○  0.36' | 
| Camera | AAL | 
| Chip | SAL | 
| Chip blooming |   | 
| Number of images | Not set | 
| Magnitude of the comparison star closest in brightness | 13.8 | 
| Calibration methods | dark-subtracted (and bias-subtracted) | 
| Pixel size width | 0.8" | 
| Pixel size height | 0.8" | 
| Light pollution zone | Not set | 
| Lm | Not set | 
| SQM-L in zenith | Not set | 
| Observatory code |  | 
| Comment | Not set |