Dear ASCA users, Please find below the ASCA observation schedule for the period of 1999, May 10 to May 22. In addition to the time constrainted observations of Cyg X-3 (PI: K. Yamaoka), we have a long observation of NGC 4258 (PI: C. Reynolds) which is performed in coordination with RXTE. F. Nagase ----------------------------------------------------------------------------- A S C A WEEKLY OBSERVATION PLAN ----------------------------------------------------------------------------- #12: May 10 - 22, 1999 ver-1 (99/ 4/13) (ISAS contact scientist: R. FUJIMOTO (fujimoto@astro.isas.ac.jp) ----------------------------------------------------------------------------- Date MNV Target Tag. Exp. Observation PI or start name Cat. (ks) Cat. Pri./TC ( PPI/Co-PI) ----------------------------------------------------------------------------- 5/10 2:20 Cyg X-3 N6 Bin. 10 JPN 2/Y K. Yamaoka 5/10 10:20 SMC_1 Gal. 40 JPN 1/n K. Koyama 5/11 14:00 SMC_2 Gal. 40 JPN 1/n K. Koyama 5/12 16:30 Cyg X-3 N7 Bin. 10 JPN 2/Y K. Yamaoka 5/12 23:00 SMC_3 Gal. 40 JPN 1/n K. Koyama 5/14 0:40 SMC_4 Gal. 40 JPN 1/n K. Koyama 5/15 2:00 Cyg X-3 N8 Bin. 10 JPN 2/Y K. Yamaoka 5/15 11:00 WR133 _N1 Star 20 USJ 2/n G. Garmire 5/15 22:20 NGC 4258 AGN 200 US 2/n C. Reynolds 5/20 13:10 H1320+551 AGN 20 JPN 2/n Y. Ogasaka 5/21 0:20 SMC_5 Gal. 40 JPN 1/n K. Koyama (5/22 2:20 MNV to next target) ----------------------------------------------------------------------------- (Note) Obs. Cat. JPN: Japan time, US: US time, JUS: Japan-US Collaboration, USJ: US-Japan Collaboration, MJU: Merged Japan-US (PPI=Japan), MUJ: Merged US-Japan (PPI=US), ESJ: ESA-Japan Program, MOT: Observatory Time (Calibration, maintenance), and TOO: Target of Opportunity