### Please describe your observing plan (time line) including overheads. acquisition : 600 (target) + 300 (standard) = 900 sec exposure : 1200*6 (GRB050904) + 10 (Feige110) = 7210 sec readout : 7 exp. * 23 sec (2x1 bin.) = 161 sec total : 900+7210+161=8271 sec ### 1. Target/field name GRB050904 2. Magnitude/range of magnitudes in a specified band z'=23 3. Are photometric conditions necessary? (Yes/No) no 4. What is the maximum acceptable seeing size in arcseconds? any 5. Right ascension of the target in format HHMMSS.SSS 005450.794 6. Declination of the target in format (+/-)DDMMSS.SS 140509.42 7. Equinox of position in format YYYY.Y 2000.0 8. Position angle in degrees (-180 to +180) 0.0 9. Observing mode (imaging/long-slit/mos) long-slit 10. Filter/grism/slit settings for observation. 0".8-center-slit+300R+O58 11. CCD binning (X-axis x Y-axis) 2x1 12. Exposure parameters for each setting 300R+O58 1200sec dithering (0,+2.0,-2.0)*2 13. Requests for calibration none ### 1. Target/field name Feige110 (spectrophotometric standard) 2. Magnitude/range of magnitudes in a specified band V=11.82 3. Are photometric conditions necessary? (Yes/No) no 4. What is the maximum acceptable seeing size in arcseconds? yes 5. Right ascension of the target in format HHMMSS.SSS 231958.39 6. Declination of the target in format (+/-)DDMMSS.SS -050955.8 7. Equinox of position in format YYYY.Y 2000.0 8. Position angle in degrees (-180 to +180) 0.0 9. Observing mode (imaging/long-slit/mos) long-slit 10. Filter/grism/slit settings for observation. 2".0-center-slit+300R+O58 11. CCD binning (X-axis x Y-axis) 2x1 12. Exposure parameters for each setting 300R+O58 10sec single - 13. Requests for calibration none ### 14. Special requests for observation (if any) none 15. MOS design files none ### A-1. Number of finding charts contained (number of pages of the PDF file). 2 A-2. Give information 1 to 5 below for each of the finding chart. (1. Page number 2. Object name 3. Size of the chart 4. Orientation of the chart (north and east) 5. Other comments (if any)) 1 GRB050904 6'x6' shown in the chart wide view 2 GRB050904 20"x20" shown in the chart detailed view