Dear ASCA users: I am sending an ASCA observation schedule for the period of April 28 to May 8. In this period we include two time critical targets, a total 10 phase critical pointings of SS 433 (total 160 ks) and a total 8 coordinated pointings (80 ks) of Mkn 421 during GRO observations. To fill the gaps between these time critical observations appropriately, RX10131+505 (80 ks, PI; A. Yamashita), A 3921 (50 ks, PI; M. Arnaud), and B2 1028+313 (40 ks, PI; G. Sarazin) are artificially divided into two to three segments. I regret for the inconvenient observations of these sources. F. Nagase ----------------------------------------------------------------------------- A S C A WEEKLY OBSERVATION PLAN ----------------------------------------------------------------------------- April 28 - May 8, 1995; (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) ----------------------------------------------------------------------------- 4/28 6:10 Mkn 421 p.2 AGN 10 JPN 1/Y T. Takahashi 4/28 14:00 RX10131+505 #1 AGN 20 JPN 1/n A. Yamashita 4/29 4:20 SS 433 p.3 Bin. 10 JPN 1/Y N. Kawai 4/29 10:50 Mkn 421 p.3 AGN 10 JPN 1/Y T. Takahashi 4/29 19:00 RX10131+505 #2 AGN 20 JPN 1/n A. Yamashita 4/30 7:40 SS 433 p.4 Bin. 10 JPN 1/Y N. Kawai 4/30 15:30 A 3921 #1 CG 25 ESJ 1/n M. Arnaud 5/ 1 7:30 Mkn 421 p.4 AGN 10 JPN 1/Y T. Takahashi 5/ 1 15:20 SS 433 p.5 Bin. 10 JPN 1/Y N. Kawai 5/ 1 22:00 X 0918-54 Bin. 20 US 1/n L. Angellini 5/ 2 12:10 SS 433 p.6 Bin. 40 JPN 1/Y N. Kawai 5/ 3 10:30 Mkn 421 p.5 AGN 10 JPN 1/Y T. Takahashi 5/ 3 18:30 B2 1028+313 #1 CG 15 US 1/n G. Sarazin 5/ 4 5:30 SS 433 p.7 Bin. 10 JPN 1/Y N. Kawai 5/ 4 15:20 A 3921 #2 CG 25 ESJ 1/n M. Arnaud 5/ 5 7:20 SS 433 p.8 Bin. 10 JPN 1/Y N. Kawai 5/ 5 15:20 Mkn 421 p.6 AGN 10 JPN 1/Y T. Takahashi 5/ 5 23:10 3C 390.3 AGN 20 USJ 2/n K. Leighly 5/ 6 11:50 SS 433 p.9 Bin. 10 JPN 1/Y N. Kawai 5/ 6 18:40 Mkn 421 p.7 AGN 10 JPN 1/Y T. Takahashi 5/ 7 2:10 B2 1028+313 #2 CG 25 US 1/n G. Sarazin 5/ 7 19:50 SS 433 p.10 Bin. 10 JPN 1/Y N. Kawai 5/ 8 5:40 Mkn 421 p.8 AGN 10 JPN 1/Y T. Takahashi (5/ 8 13:30 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: Manager's observatory time