Subaru Telescope Open Use Selection
Accepted proposals at each semester
Screening statistics in the previous semesters
| Semester |
Period |
Proposals Submitted |
Proposals Accepted |
Proposal Ratio |
Nights Requested |
Nights Awarded |
Nights Ratio |
| S26A |
2026/02 - 2026/07 |
157 |
58 |
37% |
444.92 |
102.43 |
23% |
| S25B |
2025/08 - 2026/01 |
139 |
58 |
42% |
319.96 |
112 |
35% |
| S25A |
2025/02 - 2025/07 |
132 |
54 |
41% |
365.5 |
107.2 |
29% |
| S24B |
2024/08 - 2025/01 |
134 |
55 |
41% |
301.6 |
95.95 |
32% |
| S24A |
2024/02 - 2024/07 |
108 |
56 |
52% |
263.9 |
117.3 |
44% |
| S23B |
2023/08 - 2024/01 |
119 |
56 |
47% |
237.87 |
111.5 |
47% |
| S23A |
2023/02 - 2023/07 |
95 |
44 |
46% |
216.15 |
102.15 |
47% |
| S22B |
2022/08 - 2023/01 |
129 |
35 |
27% |
246.02 |
63.4 |
26% |
| S22A |
2022/02 - 2022/07 |
132 |
46 |
35% |
256.56 |
88.0 |
34% |
| S21B |
2021/08 - 2022/01 |
135 |
37 |
27% |
307.8 |
75.4 |
24% |
| S21A |
2021/02 - 2021/07 |
138 |
34 |
25% |
286.9 |
83.8 |
29% |
| S20B |
2020/08 - 2021/01 |
136 |
34 |
25% |
368.5 |
74.5 |
20% |
| S20A |
2020/02 - 2020/07 |
145 |
53 |
37% |
330.9 |
91.7 |
28% |
| S19B |
2019/08 - 2020/01 |
142 |
34 |
24% |
323.9 |
61.6 |
19% |
| S19A |
2019/02 - 2019/07 |
133 |
46 |
35% |
354.9 |
89.5 |
25% |
| S18B |
2018/08 - 2019/01 |
156 |
50 |
32% |
415.7 |
84.5 |
20% |
| S18A |
2018/02 - 2018/07 |
155 |
45 |
29% |
347.3 |
94 |
27% |
| S17B |
2017/08 - 2018/01 |
135 |
37 |
27% |
294 |
69.5 |
24% |
| S17A |
2017/02 - 2017/07 |
166 |
42 |
25% |
418.3 |
82 |
20% |
| S16B |
2016/08 - 2017/01 |
142 |
31 |
22% |
409.8 |
53 |
13% |
| S16A |
2016/02 - 2016/07 |
184 |
41 |
22% |
451.7 |
86 |
19% |
| S15B |
2015/08 - 2016/01 |
161 |
57 |
35% |
372.5 |
97 |
26% |
| S15A |
2015/02 - 2015/07 |
162 |
64 |
40% |
427 |
102 |
24% |
| S14B |
2014/08 - 2015/01 |
133 |
58 |
44% |
366.7 |
103 |
28% |
| S14A |
2014/01 - 2014/07 |
163 |
70 |
43% |
403.6 |
104 |
26% |
| S13B |
2013/08 - 2014/01 |
146 |
41 |
28% |
362.6 |
62.5 |
17% |
| S13A |
2013/02 - 2013/07 |
143 |
52 |
36% |
368 |
85.5 |
23% |
| S12B |
2012/08 - 2013/01 |
132 |
39 |
30% |
350 |
63 |
18% |
| S12A |
2012/02 - 2012/07 |
114 |
48 |
42% |
312 |
77.5 |
25% |
| S11B |
2011/08 - 2012/01 |
119 |
39 |
33% |
291 |
58.5 |
20% |
| S11A |
2011/02 - 2011/07 |
150 |
50 |
33% |
441 |
90 |
20% |
| S10B |
2010/08 - 2011/01 |
137 |
30 |
22% |
380.5 |
51 |
13% |
| S10A |
2010/02 - 2010/07 |
141 |
43 |
30% |
413.1 |
83 |
20% |
| S09B |
2009/08 - 2010/01 |
140 |
45 |
32% |
379.5 |
110 |
29% |
| S09A |
2009/02 - 2009/07 |
151 |
53 |
35% |
429.5 |
113 |
26% |
| S08B |
2008/08 - 2009/01 |
141 |
57 |
40% |
419 |
118 |
28% |
| S08A |
2008/02 - 2008/07 |
150 |
50 |
33% |
452.5 |
112 |
25% |
| S07B |
2007/08 - 2008/01 |
138 |
53 |
38% |
407.8 |
117.5 |
29% |
| S07A |
2007/02 - 2007/07 |
125 |
45 |
36% |
391.9 |
110 |
28% |
| S06B |
2006/08 - 2007/01 |
118 |
40 |
34% |
369.7 |
101 |
27% |
| S06A |
2006/02 - 2006/07 |
145 |
34 |
23% |
473.5 |
94 |
20% |
| S05B |
2005/09 - 2006/01 |
116 |
33 |
28% |
368.5 |
88 |
24% |
| S05A |
2005/04 - 2005/08 |
139 |
35 |
25% |
456.5 |
89 |
19% |
| S04B |
2004/10 - 2005/03 |
160 |
42 |
26% |
533 |
111 |
21% |
| S04A |
2004/04 - 2004/09 |
168 |
43 |
26% |
527.8 |
107.5 |
20% |
| S03B |
2003/10 - 2004/03 |
196 |
45 |
23% |
555 |
94.5 |
17% |
| S03A |
2003/04 - 2003/09 |
205 |
42 |
20% |
537 |
86 |
16% |
| S02B |
2002/10 - 2003/03 |
197 |
39 |
20% |
487.5 |
89 |
18% |
| S02A |
2002/04 - 2002/09 |
191 |
39 |
20% |
460 |
79 |
17% |
| S01B |
2001/10 - 2002/03 |
160 |
29 |
18% |
337 |
47 |
14% |
| S01A |
2001/04 - 2001/08 |
105 |
27 |
26% |
204 |
36 |
18% |
| S00 |
2000/12 - 2001/03 |
114 |
26 |
23% |
223 |
36 |
16% |