HET Night Report Reader

Civil Date	Ephemerides
2026-01-29	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:37	01:24	01:52	12:25	12:54	13:41	-	12:01
Night Length	10:33		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin	Amy Westfall

Overlaps		none

Other Personnel	Herman Kriel

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:33			07:15	clouds	06:42
Total Time Open					6:42

Program	Night Priority	Science
01:52	Idle due to weather (heavy overcast)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:09	01:52	0.50	0.78	0	+1135	3.0	4.2	4.8	34	10	First of Night
06:12	06:59	0.43	0.70	0	+2264	1.7	2.3	2.4	104	11	Stack/Re-stack

Problem Reports					no PRs

TO Comments	Heavy clouds all night.

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
virus0000023_01	flat_ldls_long	00:04	15			VIRUS	cal							Yes
virus0000023_02	flat_ldls_long	00:06	15			VIRUS	cal							Yes
virus0000023_03	flat_ldls_long	00:07	15			VIRUS	cal							Yes
virus0000024_01	Cd-A	00:09	15			VIRUS	cal							Yes
virus0000024_02	Cd-A	00:10	15			VIRUS	cal							Yes
0002	UNe Slave Cal	00:11	426			HPF	cal							Yes
virus0000024_03	Cd-A	00:11	15			VIRUS	cal							Yes
virus0000025_01	Hg	00:13	15			VIRUS	cal							Yes
virus0000025_02	Hg	00:14	15			VIRUS	cal							Yes
virus0000025_03	Hg	00:16	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:17	0			LRS2	cal							Yes
virus0000001_01	bias	00:17	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:18	0			LRS2	cal							Yes
virus0000001_02	bias	00:18	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:18	0			LRS2	cal							Yes
virus0000001_03	bias	00:19	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:19	0			LRS2	cal							Yes
virus0000001_04	bias	00:20	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:20	0			LRS2	cal							Yes
virus0000001_05	bias	00:21	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:21	0			LRS2	cal							Yes
virus0000001_06	bias	00:21	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:22	0			LRS2	cal							Yes
virus0000001_07	bias	00:22	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:23	0			LRS2	cal							Yes
virus0000001_08	bias	00:23	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:24	0			LRS2	cal							Yes
virus0000001_09	bias	00:24	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:25	0			LRS2	cal							Yes
virus0000001_10	bias	00:25	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:26	0			LRS2	cal							Yes
virus0000001_11	bias	00:26	0			VIRUS	cal							Yes
0003	twilight	00:34	298.2			HPF	cal					420		Yes
lrs20000002_01	skyflat	00:41	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:42	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:43	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:45	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:46	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:47	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:50	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:51	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:53	14			VIRUS	cal							Yes
virus0000005_01	skyflat	00:54	18			VIRUS	cal							Yes
virus0000006_01	skyflat	00:56	26			VIRUS	cal							Yes
lrs20000008_01	dark	01:09	360			LRS2	cal							Yes
virus0000007_01	dark	01:09	360			VIRUS	cal							Yes
lrs20000008_02	dark	01:16	360			LRS2	cal							Yes
virus0000007_02	dark	01:16	360			VIRUS	cal							Yes
lrs20000008_03	dark	01:23	360			LRS2	cal							Yes
virus0000007_03	dark	01:23	360			VIRUS	cal							Yes
0004	LFC Cal	02:30	106.5			HPF	cal							Yes
0005	LFC Cal	02:32	106.5			HPF	cal							Yes
0006	LFC Cal	02:35	106.5			HPF	cal							Yes
virus0000008_01	dark	03:11	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_02	dark	03:18	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_03	dark	03:25	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_04	dark	03:31	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_05	dark	03:38	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_06	dark	03:45	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_07	dark	03:52	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_08	dark	03:59	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_09	dark	04:06	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_10	dark	04:13	360		ENG26-1-004	VIRUS	cal							Yes
0007	LFC Cal	05:01	106.5			HPF	cal							Yes
0008	LFC Cal	05:04	106.5			HPF	cal							Yes
0009	LFC Cal	05:06	106.5			HPF	cal							Yes
lrs20000009_01	dark	05:55	1800		ENG26-1-002	LRS2	cal							Yes
lrs20000009_02	dark	06:25	1800		ENG26-1-002	LRS2	cal							Yes
lrs20000009_03	dark	06:56	1800		ENG26-1-002	LRS2	cal							Yes
0010	LFC Cal	07:28	106.5			HPF	cal							Yes
0011	LFC Cal	07:30	106.5			HPF	cal							Yes
0012	LFC Cal	07:32	106.5			HPF	cal							Yes
0013	LFC Cal	08:27	106.5			HPF	cal							Yes
0014	LFC Cal	08:30	106.5			HPF	cal							Yes
0015	LFC Cal	08:32	106.5			HPF	cal							Yes
0016	LFC Cal	10:13	106.5			HPF	cal							Yes
0017	LFC Cal	10:15	106.5			HPF	cal							Yes
0018	LFC Cal	10:17	106.5			HPF	cal							Yes
lrs20000010_01	bias	11:07	0			LRS2	cal							Yes
virus0000009_01	bias	11:08	0			VIRUS	cal							Yes
virus0000010_01	Cd-A	11:12	15		ENG26-1-002	VIRUS	cal							Yes
virus0000011_01	Hg	11:14	15		ENG26-1-002	VIRUS	cal							Yes
0019	Dark	11:21	319.5			HPF	cal							Yes
0020	Quartz FCU	11:32	74.5			HPF	cal							Yes
0021	Quartz FCU	11:34	74.5			HPF	cal							Yes
0022	Quartz FCU	11:36	74.5			HPF	cal							Yes
0023	Quartz FCU	11:38	74.5			HPF	cal							Yes
0024	Quartz FCU	11:39	74.5			HPF	cal							Yes
0025	Quartz FCU	11:41	74.5			HPF	cal							Yes
0026	Quartz FCU	11:43	74.5			HPF	cal							Yes
0027	Alpha Bright Cal	11:45	85.2			HPF	cal							Yes
0028	Alpha Bright Cal	11:47	85.2			HPF	cal							Yes
0029	Alpha Bright Cal	11:49	85.2			HPF	cal							Yes
0030	Alpha Bright Cal	11:51	85.2			HPF	cal							Yes
0031	LFC FCU	11:54	106.5			HPF	cal							Yes
0032	LFC FCU	11:56	106.5			HPF	cal							Yes
0033	LFC FCU	11:58	106.5			HPF	cal							Yes
0034	LFC FCU	12:01	106.5			HPF	cal							Yes
0035	LFC FCU	12:03	106.5			HPF	cal							Yes
0036	LFC FCU	12:05	106.5			HPF	cal							Yes
0037	LFC Cal	12:08	106.5			HPF	cal							Yes
0038	LFC Cal	12:11	106.5			HPF	cal							Yes
0039	Etalon Cal	12:18	159.8			HPF	cal							Yes
0040	Etalon Cal	12:22	159.8			HPF	cal							Yes
0041	Etalon Cal	12:25	159.8			HPF	cal							Yes
0042	Etalon Cal	12:28	159.8			HPF	cal							Yes
0043	UNe Slave Cal	12:32	426			HPF	cal							Yes
0044	UNe Slave Cal	12:39	426			HPF	cal							Yes
0045	UNe Slave Cal	12:47	426			HPF	cal							Yes
0046	UNe Slave Cal	12:55	426			HPF	cal							Yes
0047	UNe Slave Cal	13:03	426			HPF	cal							Yes
0048	UNe Slave Cal	13:10	426			HPF	cal							Yes
0068	LFC Cal	22:20	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:33	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:34	20			VIRUS	cal							Yes
virus0009901_01	bias	22:35	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:36	20			LRS2	cal							Yes
virus0009902_01	dark	22:37	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:38	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:40	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:41	15			LRS2	cal							Yes
0069	Dark	22:50	319.5			HPF	cal							Yes
0070	Quartz FCU	22:57	74.5			HPF	cal							Yes
0071	Quartz FCU	22:59	74.5			HPF	cal							Yes
0072	Quartz FCU	23:01	74.5			HPF	cal							Yes
0073	Quartz FCU	23:02	74.5			HPF	cal							Yes
0074	Quartz FCU	23:04	74.5			HPF	cal							Yes
0075	Quartz FCU	23:06	74.5			HPF	cal							Yes
0076	Quartz FCU	23:08	74.5			HPF	cal							Yes
0077	Alpha Bright Cal	23:10	85.2			HPF	cal							Yes
0078	Alpha Bright Cal	23:12	85.2			HPF	cal							Yes
0079	Alpha Bright Cal	23:14	85.2			HPF	cal							Yes
0080	Alpha Bright Cal	23:16	85.2			HPF	cal							Yes
0081	LFC FCU	23:19	106.5			HPF	cal							Yes
0082	LFC FCU	23:21	106.5			HPF	cal							Yes
0083	LFC Cal	23:24	106.5			HPF	cal							Yes
0084	LFC Cal	23:26	106.5			HPF	cal							Yes
0085	Etalon Cal	23:29	159.8			HPF	cal							Yes
0086	UNe Slave Cal	23:32	426			HPF	cal							Yes
lrs20000012_01	flat_Qth_R	23:33	15			LRS2	cal							Yes
lrs20000012_02	flat_Qth_R	23:34	15			LRS2	cal							Yes
lrs20000012_03	flat_Qth_R	23:36	15			LRS2	cal							Yes
lrs20000012_04	flat_Qth_R	23:37	15			LRS2	cal							Yes
lrs20000012_05	flat_Qth_R	23:38	15			LRS2	cal							Yes
lrs20000013_01	flat_ldls_long_B	23:39	20			LRS2	cal							Yes
0087	UNe Slave Cal	23:40	426			HPF	cal							Yes
lrs20000013_02	flat_ldls_long_B	23:41	20			LRS2	cal							Yes
lrs20000013_03	flat_ldls_long_B	23:42	20			LRS2	cal							Yes
lrs20000014_01	Cd-A_B	23:43	29			LRS2	cal							Yes
lrs20000014_02	Cd-A_B	23:45	29			LRS2	cal							Yes
lrs20000014_03	Cd-A_B	23:46	29			LRS2	cal							Yes
0088	UNe Slave Cal	23:48	426			HPF	cal							Yes
lrs20000015_01	FeAr_R	23:48	15			LRS2	cal							Yes
lrs20000015_02	FeAr_R	23:49	15			LRS2	cal							Yes
lrs20000015_03	FeAr_R	23:50	15			LRS2	cal							Yes
lrs20000016_01	Hg_R	23:51	20			LRS2	cal							Yes
lrs20000016_02	Hg_R	23:53	20			LRS2	cal							Yes
lrs20000016_03	Hg_R	23:54	20			LRS2	cal							Yes
lrs20000017_01	Hg_B	23:55	15			LRS2	cal							Yes
0089	UNe Slave Cal	23:56	426			HPF	cal							Yes
lrs20000017_02	Hg_B	23:57	15			LRS2	cal							Yes
lrs20000017_03	Hg_B	23:58	15			LRS2	cal							Yes