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ASCA weekly
Dear ASCA users,
An ASCA TOO observation of the new X-ray transient, XTE J1859+226,
requested by M. McCollough was accepted. We allocate a 20-ksec observation
of the source on October 23, by reducing the exposure time of the priority-C
target, CTB 80 Shell, from 60 ksec to 40 ksec. I have tentatively assigned
Drs. N. Kawai and Y. Ueda as Japanese CoIs.
F. Nagase
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A S C A WEEKLY OBSERVATION PLAN
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#26: October 22 - November 4, 1999 ver. 2 (99/10/20)
(ISAS contact scientist: Y. UEDA (ueda@astro.isas.ac.jp)
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Date MNV Target Tag. Exp. Observation PI or
start name Cat. (ks) Cat. Pri./TC ( PPI/Co-PI)
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10/22 14:00 WR 140 Star 20 US 1/n M. Corcoran
10/23 5:40 XTE J1859+226 Bin. 20 TOO 1/Y M. McCollough
10/23 16:40 CTB 80 Shell SNR 40 MUJ 3/n S.Safi-Harb
/J. Hiraga
10/24 16:30 ER Vul Star 100 MUJ 1/Y A Brown
/TBD
10/27 11:00 MCG-05-18-002 AGN 40 MUJ 1/n E. Moran
/H. Awaki
10/28 14:20 G65.7+1.2 SNR 20 MUJ 2/n J. Hughes
/M. Sakano
10/29 6:20 WR 133 N2 Star 20 USJ 2/n G. Garmire
10/29 19:00 24 Uma Star 20 ESJ 3/n M. Huensch
10/30 7:40 PG 2112+059 AGN 40 MUJ 3/n W. Brandt
/N. Iyomoto
10/31 11:50 H1318+692 AGN 20 JPN 2/n Y. Ogasaka
11/ 1 0:50 0520-69.4 SNR 30 MUJ 2/n J. Hughes
/M. Nishiuchi
11/ 1 18:10 SN1987A SNR 100 JPN 1/n M. Itoh
(11/ 4 7:40 MNV to next target)
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(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