HET Night Report Reader

Civil Date	Ephemerides
2026-07-16	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:07	02:59	03:34	10:30	11:05	11:57	-	03:53
Night Length	6:56		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Justen Pautzke	-	-

Overlaps
TO Overlap	RA Overlap
Aiden Dillard	-

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
02:02	16.3	16.6	05:42	clouds	03:40
Total Time Open					3:40

Program	Night Priority	Science
03:34	Science
04:43	Idle due to weather (clouds)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:33	03:14	0.37	0.57	-389	1456	15.8	16.4	16.4	187	14	First of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
6690	03:59-03:59	00:00	Segment 9:8 Oscillating

Ops Comments	none

TO Comments	Poor weather most of the night. HVAC setpoint 2C above external temperature (dehumidification).

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	Quartz FCU	00:00	74.5			HPF	cal							Yes
0002	Quartz FCU	00:02	74.5			HPF	cal							Yes
0003	Alpha Bright Cal	00:04	85.2			HPF	cal							Yes
0004	Alpha Bright Cal	00:06	85.2			HPF	cal							Yes
0005	Alpha Bright Cal	00:08	85.2			HPF	cal							Yes
0006	Alpha Bright Cal	00:10	85.2			HPF	cal							Yes
0007	LFC FCU	00:12	106.5			HPF	cal							Yes
0008	LFC FCU	00:15	106.5			HPF	cal							Yes
0009	LFC Cal	00:18	106.5			HPF	cal							Yes
0010	LFC Cal	00:20	106.5			HPF	cal							Yes
0011	Etalon Cal	00:23	159.8			HPF	cal							Yes
0012	UNe Slave Cal	00:26	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:27	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:28	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:30	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:31	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:32	15			LRS2	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:33	20			LRS2	cal							Yes
0013	UNe Slave Cal	00:34	426			HPF	cal							Yes
lrs20000002_02	flat_ldls_long_B	00:35	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	00:36	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	00:37	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	00:39	29			LRS2	cal							Yes
lrs20000003_03	Cd-A_B	00:40	29			LRS2	cal							Yes
0014	UNe Slave Cal	00:42	426			HPF	cal							Yes
lrs20000004_01	FeAr_R	00:42	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	00:43	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	00:44	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	00:45	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	00:47	20			LRS2	cal							Yes
lrs20000005_03	Hg_R	00:48	20			LRS2	cal							Yes
lrs20000006_01	Hg_B	00:49	15			LRS2	cal							Yes
0015	UNe Slave Cal	00:50	426			HPF	cal							Yes
lrs20000006_02	Hg_B	00:51	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	00:52	15			LRS2	cal							Yes
0016	UNe Slave Cal	00:57	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:58	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	01:00	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	01:01	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	01:02	15			VIRUS	cal							Yes
virus0000002_02	Cd-A	01:04	15			VIRUS	cal							Yes
0017	UNe Slave Cal	01:05	426			HPF	cal							Yes
virus0000002_03	Cd-A	01:05	15			VIRUS	cal							Yes
virus0000003_01	Hg	01:07	15			VIRUS	cal							Yes
virus0000003_02	Hg	01:08	15			VIRUS	cal							Yes
virus0000003_03	Hg	01:09	15			VIRUS	cal							Yes
lrs20000007_01	bias	01:11	0			LRS2	cal							Yes
virus0000004_01	bias	01:11	0			VIRUS	cal							Yes
lrs20000007_02	bias	01:11	0			LRS2	cal							Yes
virus0000004_02	bias	01:12	0			VIRUS	cal							Yes
lrs20000007_03	bias	01:12	0			LRS2	cal							Yes
virus0000004_03	bias	01:12	0			VIRUS	cal							Yes
lrs20000007_04	bias	01:13	0			LRS2	cal							Yes
virus0000004_04	bias	01:13	0			VIRUS	cal							Yes
lrs20000007_05	bias	01:14	0			LRS2	cal							Yes
virus0000004_05	bias	01:14	0			VIRUS	cal							Yes
lrs20000007_06	bias	01:15	0			LRS2	cal							Yes
virus0000004_06	bias	01:15	0			VIRUS	cal							Yes
lrs20000007_07	bias	01:16	0			LRS2	cal							Yes
virus0000004_07	bias	01:16	0			VIRUS	cal							Yes
lrs20000007_08	bias	01:17	0			LRS2	cal							Yes
lrs20000007_09	bias	01:17	0			LRS2	cal							Yes
virus0000004_08	bias	01:17	0			VIRUS	cal							Yes
virus0000004_09	bias	01:18	0			VIRUS	cal							Yes
lrs20000007_10	bias	01:18	0			LRS2	cal							Yes
virus0000004_10	bias	01:19	0			VIRUS	cal							Yes
lrs20000007_11	bias	01:19	0			LRS2	cal							Yes
virus0000004_11	bias	01:19	0			VIRUS	cal							Yes
lrs20000008_01	dark	01:20	360			LRS2	cal							Yes
virus0000005_01	dark	01:20	360			VIRUS	cal							Yes
lrs20000008_02	dark	01:27	360			LRS2	cal							Yes
virus0000005_02	dark	01:27	360			VIRUS	cal							Yes
lrs20000008_03	dark	01:34	360			LRS2	cal							Yes
virus0000005_03	dark	01:34	360			VIRUS	cal							Yes
0018	twilight	02:05	298.2			HPF	cal					389		Yes
lrs20000009_01	skyflat	02:13	7			LRS2	cal							Yes
lrs20000010_01	skyflat	02:14	10			LRS2	cal							Yes
lrs20000011_01	skyflat	02:15	13			LRS2	cal							Yes
lrs20000012_01	skyflat	02:16	16			LRS2	cal							Yes
lrs20000013_01	skyflat	02:18	22			LRS2	cal							Yes
lrs20000014_01	skyflat	02:19	30			LRS2	cal							Yes
virus0000006_01	skyflat	02:23	7			VIRUS	cal							Yes
virus0000007_01	skyflat	02:24	10			VIRUS	cal							Yes
virus0000008_01	skyflat	02:25	14			VIRUS	cal							Yes
virus0000009_01	skyflat	02:27	18			VIRUS	cal							Yes
virus0000010_01	skyflat	02:28	26			VIRUS	cal							Yes
0019	LFC Cal	02:30	106.5			HPF	cal							Yes
0020	LFC Cal	02:32	106.5			HPF	cal							Yes
0021	LFC Cal	02:34	106.5			HPF	cal							Yes
0022	QID 1028	03:25	308.9	8.9	UT26-2-006	HPF	sci	1.68		20.25	0.88	174		P4
virus0000011_01	parallel	03:25	1051			VIRUS	sci							Yes
0023	QID 1028	03:31	308.9	0.9	UT26-2-006	HPF	sci	1.50		20.26	0.90	176		P4
0024	QID 1028	03:37	308.9	0.9	UT26-2-006	HPF	sci	1.41		20.26	0.89	184		P4
0025	LFC Cal	03:51	106.5			HPF	cal							Yes
lrs20000015_01	parallel	03:51	1000			LRS2	sci							Yes
virus0000012_01	QID 1015	03:51	1000	9.3	PSU26-2-003	VIRUS	sci	1.72		22.28	0.87			Yes
0026	LFC Cal	03:53	106.5			HPF	cal							Yes
0027	LFC Cal	03:56	106.5			HPF	cal							Yes
lrs20000015_02	parallel	04:09	1000			LRS2	sci							Yes
virus0000012_02	QID 1015	04:09	1000	0.3	PSU26-2-003	VIRUS	sci	1.60		22.16	0.80			Yes
lrs20000015_03	parallel	04:27	1000			LRS2	sci							Yes
virus0000012_03	QID 1015	04:27	1000	1.3	PSU26-2-003	VIRUS	sci	1.47		22.15	0.76			Yes
virus0000013_01	dark	05:05	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_02	dark	05:12	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_03	dark	05:19	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_04	dark	05:26	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_05	dark	05:33	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_06	dark	05:40	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_07	dark	05:47	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_08	dark	05:53	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_09	dark	06:00	360		ENG26-2-004	VIRUS	cal							Yes
virus0000013_10	dark	06:07	360		ENG26-2-004	VIRUS	cal							Yes
lrs20000016_01	dark	06:15	1800		ENG26-2-002	LRS2	cal							Yes
0028	LFC Cal	06:38	106.5			HPF	cal							Yes
0029	LFC Cal	06:40	106.5			HPF	cal							Yes
0030	LFC Cal	06:42	106.5			HPF	cal							Yes
lrs20000016_02	dark	06:46	1800		ENG26-2-002	LRS2	cal							Yes
lrs20000016_03	dark	07:16	1800		ENG26-2-002	LRS2	cal							Yes
lrs20000017_01	FeAr_long_R	07:50	65		ENG26-2-002	LRS2	cal							Yes
lrs20000017_02	FeAr_long_R	07:52	65		ENG26-2-002	LRS2	cal							Yes
lrs20000017_03	FeAr_long_R	07:54	65		ENG26-2-002	LRS2	cal							Yes
lrs20000017_04	FeAr_long_R	07:56	65		ENG26-2-002	LRS2	cal							Yes
0031	LFC Cal	08:00	106.5			HPF	cal							Yes
lrs20000018_01	FeAr_long_B	08:01	150		ENG26-2-002	LRS2	cal							Yes
0032	LFC Cal	08:02	106.5			HPF	cal							Yes
0033	LFC Cal	08:04	106.5			HPF	cal							Yes
lrs20000018_02	FeAr_long_B	08:05	150		ENG26-2-002	LRS2	cal							Yes
lrs20000018_03	FeAr_long_B	08:08	150		ENG26-2-002	LRS2	cal							Yes
lrs20000018_04	FeAr_long_B	08:11	150		ENG26-2-002	LRS2	cal							Yes
0034	LFC Cal	08:16	106.5			HPF	cal							Yes
0035	LFC Cal	08:18	106.5			HPF	cal							Yes
0036	LFC Cal	08:20	106.5			HPF	cal							Yes
lrs20000019_01	bias	09:47	0			LRS2	cal							Yes
virus0000014_01	bias	09:48	0			VIRUS	cal							Yes
virus0000015_01	Cd-A	09:49	15		ENG26-2-002	VIRUS	cal							Yes
virus0000016_01	Hg	09:50	15		ENG26-2-002	VIRUS	cal							Yes
0037	Dark	10:01	319.5			HPF	cal							Yes
0038	Quartz FCU	10:12	74.5			HPF	cal							Yes
0039	Quartz FCU	10:14	74.5			HPF	cal							Yes
0040	Quartz FCU	10:16	74.5			HPF	cal							Yes
0041	Quartz FCU	10:17	74.5			HPF	cal							Yes
0042	Quartz FCU	10:19	74.5			HPF	cal							Yes
0043	Quartz FCU	10:21	74.5			HPF	cal							Yes
0044	Quartz FCU	10:23	74.5			HPF	cal							Yes
0045	Alpha Bright Cal	10:25	85.2			HPF	cal							Yes
0046	Alpha Bright Cal	10:27	85.2			HPF	cal							Yes
0047	Alpha Bright Cal	10:29	85.2			HPF	cal							Yes
0048	Alpha Bright Cal	10:31	85.2			HPF	cal							Yes
0049	LFC FCU	10:34	106.5			HPF	cal							Yes
0050	LFC FCU	10:36	106.5			HPF	cal							Yes
0051	LFC FCU	10:38	106.5			HPF	cal							Yes
0052	LFC FCU	10:41	106.5			HPF	cal							Yes
0053	LFC FCU	10:43	106.5			HPF	cal							Yes
0054	LFC FCU	10:45	106.5			HPF	cal							Yes
0055	LFC Cal	10:48	106.5			HPF	cal							Yes
0056	LFC Cal	10:50	106.5			HPF	cal							Yes
0057	Etalon Cal	10:58	159.8			HPF	cal							Yes
0058	Etalon Cal	11:01	159.8			HPF	cal							Yes
0059	Etalon Cal	11:05	159.8			HPF	cal							Yes
0060	Etalon Cal	11:08	159.8			HPF	cal							Yes
0061	UNe Slave Cal	11:11	426			HPF	cal							Yes
0062	UNe Slave Cal	11:19	426			HPF	cal							Yes
0063	UNe Slave Cal	11:27	426			HPF	cal							Yes
0064	UNe Slave Cal	11:35	426			HPF	cal							Yes
0065	UNe Slave Cal	11:42	426			HPF	cal							Yes
0066	UNe Slave Cal	11:50	426			HPF	cal							Yes
0049	LFC Cal	23:25	106.5			HPF	cal							Yes
lrs20009900_01	bias	23:32	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	23:33	20			VIRUS	cal							Yes
virus0009901_01	bias	23:35	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:35	20			LRS2	cal							Yes
virus0009902_01	dark	23:37	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:38	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:39	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:40	15			LRS2	cal							Yes
0050	Dark	23:44	319.5			HPF	cal							Yes
0051	Quartz FCU	23:51	74.5			HPF	cal							Yes
0052	Quartz FCU	23:53	74.5			HPF	cal							Yes
0053	Quartz FCU	23:55	74.5			HPF	cal							Yes
0054	Quartz FCU	23:56	74.5			HPF	cal							Yes
0055	Quartz FCU	23:58	74.5			HPF	cal							Yes

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