HET Night Report Reader

Civil Date	Ephemerides
2026-03-11	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:08	01:53	02:21	11:49	12:17	13:03	09:06	-
Night Length	9:28		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin	Cassie Crowe

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
06:07	5.0	7.0	12:50	twilight	06:43
Total Time Open					6:43

Program	Night Priority	Science
02:21	Idle due to weather (high dust)
06:51	Science
11:16	Engineering (hpf)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
06:08	06:50	0.50	0.76	80	-2001	4.8	5.7	6.0	106	15	First of Night
09:30	09:53				-1632	4.1	4.6	4.4	94	10	Stack/Re-stack
12:06	12:12	0.71	1.06	150	-1368	2.6	3.4	3.5	136	9	Post-Observing

Problem Reports					no PRs

TO Comments	Closed for first half due to dust. Clear but dropping temps the rest.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	UNe Slave Cal	00:04	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:05	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:07	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	00:08	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	00:09	15			VIRUS	cal							Yes
0002	UNe Slave Cal	00:11	426			HPF	cal							Yes
virus0000002_02	Cd-A	00:11	15			VIRUS	cal							Yes
virus0000002_03	Cd-A	00:12	15			VIRUS	cal							Yes
virus0000003_01	Hg	00:14	15			VIRUS	cal							Yes
virus0000003_02	Hg	00:15	15			VIRUS	cal							Yes
virus0000003_03	Hg	00:16	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:18	0			LRS2	cal							Yes
virus0000004_01	bias	00:18	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:18	0			LRS2	cal							Yes
virus0000004_02	bias	00:19	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:19	0			LRS2	cal							Yes
virus0000004_03	bias	00:20	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:20	0			LRS2	cal							Yes
virus0000004_04	bias	00:20	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:21	0			LRS2	cal							Yes
virus0000004_05	bias	00:21	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:22	0			LRS2	cal							Yes
virus0000004_06	bias	00:22	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:23	0			LRS2	cal							Yes
virus0000004_07	bias	00:23	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:24	0			LRS2	cal							Yes
virus0000004_08	bias	00:24	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:24	0			LRS2	cal							Yes
virus0000004_09	bias	00:25	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:25	0			LRS2	cal							Yes
virus0000004_10	bias	00:26	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:26	0			LRS2	cal							Yes
virus0000004_11	bias	00:27	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:27	360			LRS2	cal							Yes
virus0000005_01	dark	00:27	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:34	360			LRS2	cal							Yes
virus0000005_02	dark	00:34	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:41	360			LRS2	cal							Yes
virus0000005_03	dark	00:41	360			VIRUS	cal							Yes
0003	LFC Cal	01:25	106.5			HPF	cal							Yes
0004	LFC Cal	01:27	106.5			HPF	cal							Yes
0005	LFC Cal	01:30	106.5			HPF	cal							Yes
0006	LFC Cal	04:31	106.5			HPF	cal							Yes
0007	LFC Cal	04:33	106.5			HPF	cal							Yes
0008	LFC Cal	04:36	106.5			HPF	cal							Yes
0009	LFC Cal	06:56	106.5			HPF	cal							Yes
lrs20000003_01	parallel	06:56	600			LRS2	sci							Yes
virus0000006_01	parallel	06:56	600	5.0	UT26-1-018	VIRUS	sci	2.08		21.78	0.77			Yes
0010	LFC Cal	06:59	106.5			HPF	cal							Yes
0011	LFC Cal	07:01	106.5			HPF	cal							Yes
lrs20000003_02	parallel	07:07	600			LRS2	sci							Yes
virus0000006_02	parallel	07:07	600	1.0	UT26-1-018	VIRUS	sci	2.14		21.73	0.75			Yes
lrs20000003_03	parallel	07:18	600			LRS2	sci							Yes
virus0000006_03	parallel	07:19	600	2.0	UT26-1-018	VIRUS	sci	2.39		21.58	0.83			Yes
0012	LFC Cal	07:34	106.5			HPF	cal							Yes
lrs20000004_01	parallel	07:34	180	5.0	UT26-1-016	LRS2-B	sci	2.10		21.87	0.84			P4
virus0000007_01	parallel	07:39	360			VIRUS	sci							Yes
0013	LFC Cal	07:40	106.5			HPF	cal							Yes
lrs20000005_01	parallel	07:40	360	3.0	UT26-1-016	LRS2-R	sci	2.02		20.87	0.91			P4
0014	LFC Cal	07:42	106.5			HPF	cal							Yes
0015	parallel	07:52	649.6	6.2	PSU26-1-023	HPF	sci	2.01		20.29	0.82	282		Yes
virus0000008_01	parallel	07:52	2083			VIRUS	sci							Yes
0016	parallel	08:04	649.6	1.2	PSU26-1-023	HPF	sci	2.01	1.11	20.23	0.90	313		Yes
0017	parallel	08:16	649.6	1.2	PSU26-1-023	HPF	sci	2.21	1.04	20.17	0.87	283		Yes
0018	LFC Cal	08:28	106.5			HPF	cal							Yes
virus0000009_01	P177D_034_E	08:34	60	7.0		VIRUS	spec	1.86	0.92	22.01	0.72			Yes
virus0000009_02	P177D_034_E	08:36	60	1.0		VIRUS	spec	1.83	0.90	22.01	0.72			Yes
virus0000009_03	P177D_034_E	08:39	60	2.0		VIRUS	spec	1.97	0.96	22.03	0.73			Yes
0019	parallel	08:45	340.8	5.3	PSU26-1-010	HPF	sci	1.85	1.36	20.47	0.70	401		Yes
virus0000010_01	parallel	08:45	374			VIRUS	sci							Yes
0020	parallel	08:57	969.1	5.8	PSU26-1-024	HPF	sci	2.16	1.45	20.33	0.83	199		Yes
virus0000011_01	parallel	08:57	2047			VIRUS	sci							Yes
0021	parallel	09:14	969.1	0.8	PSU26-1-024	HPF	sci	2.00	1.17	20.21	0.84	204		Yes
0022	parallel	10:00	42.6	6.3	UT26-1-014	HPF	sci	2.29	1.42	20.05	0.65	418		P4
0023	LFC Cal	10:01	106.5			HPF	cal							Yes
0024	LFC Cal	10:05	106.5			HPF	cal							Yes
lrs20000006_01	parallel	10:05	180	5.0	UT26-1-016	LRS2-B	sci	1.73	1.14	20.86	0.87			P4
0025	LFC Cal	10:11	106.5			HPF	cal							Yes
virus0000012_01	parallel	10:11	360			VIRUS	sci							Yes
lrs20000007_01	parallel	10:11	360	3.0	UT26-1-016	LRS2-R	sci	1.46	1.12	20.28	0.99			P4
0026	LFC Cal	10:13	106.5			HPF	cal							Yes
0027	parallel	10:21	969.1	4.8	PSU26-1-024	HPF	sci	1.48	0.95	19.84	0.88	125		Yes
virus0000013_01	parallel	10:21	1023			VIRUS	sci							Yes
virus0000014_01	parallel	10:42	2047			VIRUS	sci							Yes
0028	parallel	10:43	969.1	4.8	PSU26-1-023	HPF	sci	1.60	0.89	20.14	0.93	161		Yes
0029	parallel	11:00	969.1	0.8	PSU26-1-023	HPF	sci	1.54	0.98	20.15	0.95	170		Yes
0030	LFC Cal	11:18	106.5			HPF	cal							Yes
0031	GJ_699	11:26	202.3	10.6	ENG26-1-000	HPF	eng	1.49	1.12	19.73	0.75	436		Yes
virus0000015_01	parallel	11:26	2391			VIRUS	eng							Yes
0032	GJ_699	11:30	202.3	0.6	ENG26-1-000	HPF	eng	1.47	1.27	19.72	0.78	458		Yes
0033	GJ_699	11:34	202.3	0.6	ENG26-1-000	HPF	eng	1.51	1.27	19.70	0.84	485		Yes
0034	GJ_699	11:38	202.3	0.6	ENG26-1-000	HPF	eng	1.53	1.25	19.69	0.90	488		Yes
0035	GJ_699	11:42	202.3	0.6	ENG26-1-000	HPF	eng	1.47	1.01	19.69	0.94	524		Yes
0036	GJ_699	11:46	202.3	0.6	ENG26-1-000	HPF	eng	1.48	1.19	19.69	0.96	538		Yes
0037	GJ_699	11:50	202.3	0.6	ENG26-1-000	HPF	eng	1.50	1.16	19.70	0.96	554		Yes
0038	GJ_699	11:54	202.3	0.6	ENG26-1-000	HPF	eng	1.50	1.28	19.69	0.96	555		Yes
0039	GJ_699	11:58	202.3	0.6	ENG26-1-000	HPF	eng	1.49	0.91	19.61	0.95	539		Yes
0040	GJ_699	12:02	202.3	0.6	ENG26-1-000	HPF	eng	1.49	1.69	19.52	0.94	506		Yes
0041	LFC Cal	12:07	106.5			HPF	cal							Yes
lrs20000008_01	bias	12:08	0			LRS2	cal							Yes
virus0000016_01	bias	12:09	0			VIRUS	cal							Yes
virus0000017_01	Cd-A	12:11	15		ENG26-1-002	VIRUS	cal							Yes
virus0000018_01	Hg	12:12	15		ENG26-1-002	VIRUS	cal							Yes
virus0000019_01	skyflat	12:43	25			VIRUS	cal							Yes
virus0000020_01	skyflat	12:45	18			VIRUS	cal							Yes
virus0000021_01	skyflat	12:46	15			VIRUS	cal							Yes
0042	Dark	12:51	319.5			HPF	cal							Yes
0043	Quartz FCU	13:03	74.5			HPF	cal							Yes
0044	Quartz FCU	13:05	74.5			HPF	cal							Yes
0045	Quartz FCU	13:06	74.5			HPF	cal							Yes
0046	Quartz FCU	13:08	74.5			HPF	cal							Yes
0047	Quartz FCU	13:10	74.5			HPF	cal							Yes
0048	Quartz FCU	13:12	74.5			HPF	cal							Yes
0049	Quartz FCU	13:14	74.5			HPF	cal							Yes
0050	Alpha Bright Cal	13:16	85.2			HPF	cal							Yes
0051	Alpha Bright Cal	13:18	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	13:20	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	13:22	85.2			HPF	cal							Yes
0054	LFC FCU	13:24	106.5			HPF	cal							Yes
0055	LFC FCU	13:27	106.5			HPF	cal							Yes
0056	LFC FCU	13:29	106.5			HPF	cal							Yes
0057	LFC FCU	13:31	106.5			HPF	cal							Yes
0058	LFC FCU	13:34	106.5			HPF	cal							Yes
0059	LFC FCU	13:36	106.5			HPF	cal							Yes
0060	LFC Cal	13:39	106.5			HPF	cal							Yes
0061	LFC Cal	13:41	106.5			HPF	cal							Yes
0062	Etalon Cal	13:49	159.8			HPF	cal							Yes
0063	Etalon Cal	13:52	159.8			HPF	cal							Yes
0064	Etalon Cal	13:55	159.8			HPF	cal							Yes
0065	Etalon Cal	13:58	159.8			HPF	cal							Yes
0066	UNe Slave Cal	14:02	426			HPF	cal							Yes
0067	UNe Slave Cal	14:10	426			HPF	cal							Yes
0068	UNe Slave Cal	14:18	426			HPF	cal							Yes
0069	UNe Slave Cal	14:25	426			HPF	cal							Yes
0070	UNe Slave Cal	14:33	426			HPF	cal							Yes
0071	UNe Slave Cal	14:41	426			HPF	cal							Yes
0058	LFC Cal	22:21	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:36	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:36	20			VIRUS	cal							Yes
virus0009901_01	bias	22:38	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:39	20			LRS2	cal							Yes
virus0009902_01	dark	22:40	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:41	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:42	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:44	15			LRS2	cal							Yes
0059	Dark	22:50	319.5			HPF	cal							Yes
0060	Quartz FCU	22:57	74.5			HPF	cal							Yes
0061	Quartz FCU	22:59	74.5			HPF	cal							Yes
0062	Quartz FCU	23:01	74.5			HPF	cal							Yes
0063	Quartz FCU	23:02	74.5			HPF	cal							Yes
0064	Quartz FCU	23:04	74.5			HPF	cal							Yes
0065	Quartz FCU	23:06	74.5			HPF	cal							Yes
0066	Quartz FCU	23:08	74.5			HPF	cal							Yes
0067	Alpha Bright Cal	23:10	85.2			HPF	cal							Yes
0068	Alpha Bright Cal	23:12	85.2			HPF	cal							Yes
0069	Alpha Bright Cal	23:14	85.2			HPF	cal							Yes
0070	Alpha Bright Cal	23:16	85.2			HPF	cal							Yes
0071	LFC FCU	23:19	106.5			HPF	cal							Yes
0072	LFC FCU	23:21	106.5			HPF	cal							Yes
0073	LFC Cal	23:24	106.5			HPF	cal							Yes
0074	LFC Cal	23:26	106.5			HPF	cal							Yes
0075	Etalon Cal	23:29	159.8			HPF	cal							Yes
0076	UNe Slave Cal	23:33	426			HPF	cal							Yes
lrs20000009_01	flat_Qth_R	23:34	15			LRS2	cal							Yes
lrs20000009_02	flat_Qth_R	23:35	15			LRS2	cal							Yes
lrs20000009_03	flat_Qth_R	23:37	15			LRS2	cal							Yes
lrs20000009_04	flat_Qth_R	23:38	15			LRS2	cal							Yes
lrs20000009_05	flat_Qth_R	23:39	15			LRS2	cal							Yes
0077	UNe Slave Cal	23:40	426			HPF	cal							Yes
lrs20000010_01	flat_ldls_long_B	23:40	20			LRS2	cal							Yes
lrs20000010_02	flat_ldls_long_B	23:42	20			LRS2	cal							Yes
lrs20000010_03	flat_ldls_long_B	23:43	20			LRS2	cal							Yes
lrs20000011_01	Cd-A_B	23:44	29			LRS2	cal							Yes
lrs20000011_02	Cd-A_B	23:46	29			LRS2	cal							Yes
lrs20000011_03	Cd-A_B	23:47	29			LRS2	cal							Yes
0078	UNe Slave Cal	23:48	426			HPF	cal							Yes
lrs20000012_01	FeAr_R	23:49	15			LRS2	cal							Yes
lrs20000012_02	FeAr_R	23:50	15			LRS2	cal							Yes
lrs20000012_03	FeAr_R	23:51	15			LRS2	cal							Yes
lrs20000013_01	Hg_R	23:52	20			LRS2	cal							Yes
lrs20000013_02	Hg_R	23:54	20			LRS2	cal							Yes
lrs20000013_03	Hg_R	23:55	20			LRS2	cal							Yes
0079	UNe Slave Cal	23:56	426			HPF	cal							Yes
lrs20000014_01	Hg_B	23:56	15			LRS2	cal							Yes
lrs20000014_02	Hg_B	23:57	15			LRS2	cal							Yes
lrs20000014_03	Hg_B	23:59	15			LRS2	cal							Yes