Gemini South Semester 2023B
The semester calendar shows multi-instrument queue nights, priority visitor nights, scheduled classical runs and engineering or commissioning blocks.
Horizontal rows represent instrument ports, color-coded to indicate instruments mounted. Instruments are available for science unless otherwise noted.
Note: ToO PIs should always check the "what's available now" pages that are linked from the contents list for the most up-to-date information.
Scheduled classical runs are indicated by indicated by the last characters of the program ID, e.g., "C-1", whilst Priority Visitor programs are indicated with "PV".
Engineering or commissioning blocks are shown across all rows when no backup queue is available (or telescope is closed).
New and full moon dates are shown on the left.  Dates above each month are color-coded to show weekends (orange) and holidays (green)
Key:	GMOS			F2			IGRINS				Canopus					GSAOI				Cal/ZORRO					GHOST				SHUTDOWN
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
August	Port 1-up
11 full Moon	Port 2
27 new Moon	Port 3
	Port 4
	Port 5
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
September	Port 1-up																						GHOST
10 full Moon	Port 2
25 new Moon	Port 3																						IGRINS
	Port 4																						Canopus
	Port 5																						F2
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
October	Port 1-up
9 full Moon	Port 2
25 new Moon	Port 3					Telescope maintenance shutdown
	Port 4								M1 coating
	Port 5
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
November	Port 1-up	IGRINS																							GHOST
8 full Moon	Port 2
23 new Moon	Port 3					Telescope maintenance shutdown																		IGRINS
	Port 4								M1 coating
	Port 5																							F2
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
December	Port 1-up	GHOST																			GSAOI								IGRINS
8 full Moon	Port 2																		cal/ZORRO													ZORRO Block
23 new Moon	Port 3	IGRINS												GMOS
	Port 4														Canopus
	Port 5	F2
		1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30	31
January	Port 1-up	IGRINS								GSAOI														GSAOI Laser run						IGRINS
6 full Moon	Port 2	ZORRO Block
21 new Moon	Port 3	GMOS
	Port 4	Canopus
	Port 5	F2
Version: Dec 12, 2023