From guest10@ing.iac.es Sun Sep 22 17:15:32 1996 Date: Tue, 16 Apr 96 18:26:08 +0100 From: Guest 10 To: bm@ic.ac.uk, dxc@ast.cam.ac.uk, karkut@ast.cam.ac.uk, mike@ast.cam.ac.uk, rgm@ast.cam.ac.uk, doi@astron.s.u-tokyo.ac.jp, drm@ing.iac.es, jmb@ing.iac.es, kmd@ing.iac.es, sab@ing.iac.es, crb@ing.iac.es, dspray@ing.iac.es, cmp@ing.iac.es, cmr@ing.iac.es, guest10@ing.iac.es, kashik@zone.mtk.nao.ac.jp, kawasaki@astron.s.u-tokyo.ac.jp, komiyama@astron.s.u-tokyo.ac.jp, okamura@astron.s.u-tokyo.ac.jp, shimasak@astron.s.u-tokyo.ac.jp, yagi@astron.s.u-tokyo.ac.jp, yasuda@astron.s.u-tokyo.ac.jp Mosaic Observation To all, The observation with the mosaic camera went very well after solving a few problems in the first day and night. We thank all of you for your excellent professional assistance and support. The observation would not have been possible without you. We also would like to thank UK astronomers for their help in observation. We would like to let you know the summary of our observation run. -------------------------------------------------------- 1. Number of Exposures Date All Bias Obj Others April 3 6 2 0 4 engineering April 4 24 7 11 6 engineering April 5 37 5 22 10 April 6 44 5 32 7 April 7 47 7 33 7 April 8 29 4 13 12 April 9 37 5 23 9 April 10 44 5 28 11 April 11 0 0 0 0 clouded out April 12 0 0 0 0 rained out April 13 37 5 25 7 bad seeing (1".6) April 14 38 5 20 13 Total 343 50 207 86 "Others" includes skyflat, focus test, and dark frames. With 40 CCDs, the number of CCD frames taken is 343 x 40 = 13,720 total and 207 x 40=8,280 for objects. The amount of data is 27Gbyte total and 16.6Gbyte for objects. 2. Observed Fields B V R I Z Lockman A done done done QSO Lockman B done done done QSO 1631p4106 A done done QSO 1631p4106 B done done QSO 1533p33 A done done QSO 1533p33 B done 1/4 QSO SA57 A done done done done done Coma-control/QSO SA57 B done done done Coma-control/QSO NEP A 3/4 QSO Groth Strip done done done 3/4 HST Coma center done done Coma 2 done done Coma 3 done done Coma 4 done Coma 5 done Notes. (1) 'done' means 4 shots. (2) We had only one photometric night (Apr 10). (3) Typical exposure time (min) B V R I Z 30 15 15 15 15 (4) Seeing sizes were 0.8 - 1.8 arcsec. Seeing sizes were 0.9-1.2 arcsec for Coma center, Coma 3, and SA57A (both B and R). -------------------------------------------------------- The weather was not the best but UK astronomers and we have a LOT of data to analyze now. We hope that we can obtain good and interesting astronomical results from the data and come back next year for more observations. We are also looking forward to good UK-Japan collaboration present and future. Thank you again and take care. Best regards, Maki Sekiguchi Nobunari Kashikawa Kazuhiro Shimasaku Yutaka Komiyama