HET Night Report Reader

Civil Date	Ephemerides
2026-03-17	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:12	01:57	02:25	11:41	12:10	12:55	12:47	-
Night Length	9:16		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Tyler Ryburn / Sergey Rostopchin	Amy Westfall Aiden Dillard

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:02	15.0	14.9	12:14	twilight	11:12
Total Time Open					11:12

Program	Night Priority	Science
02:25	Science
07:06	Idle due to weather (poor image quality)
07:44	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:56	02:47	0.60	1.07	90	-4300	14.8	14.5	14.5	246	10	First of Night
04:39	05:02					13.8	14.0	14.2	250	11	Stack/Re-stack
12:08	12:13	0.62	1.04	-80	-3603	13.7	13.9	13.9	320	19	Post-Observing

Problem Reports					no PRs

TO Comments	Clear and calm night with a little rough seeing and stable temperature.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000025_02	Hg	00:00	15			VIRUS	cal							Yes
virus0000025_03	Hg	00:01	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:03	0			LRS2	cal							Yes
virus0000001_01	bias	00:03	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:04	0			LRS2	cal							Yes
virus0000001_02	bias	00:04	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:04	0			LRS2	cal							Yes
virus0000001_03	bias	00:05	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:05	0			LRS2	cal							Yes
virus0000001_04	bias	00:06	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:06	0			LRS2	cal							Yes
virus0000001_05	bias	00:06	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:07	0			LRS2	cal							Yes
virus0000001_06	bias	00:07	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:08	0			LRS2	cal							Yes
virus0000001_07	bias	00:08	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:09	0			LRS2	cal							Yes
virus0000001_08	bias	00:09	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:10	0			LRS2	cal							Yes
lrs20000001_10	bias	00:10	0			LRS2	cal							Yes
virus0000001_09	bias	00:10	0			VIRUS	cal							Yes
virus0000001_10	bias	00:11	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:11	0			LRS2	cal							Yes
virus0000001_11	bias	00:12	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:12	360			LRS2	cal							Yes
virus0000002_01	dark	00:13	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:19	360			LRS2	cal							Yes
virus0000002_02	dark	00:19	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:26	360			LRS2	cal							Yes
virus0000002_03	dark	00:26	360			VIRUS	cal							Yes
0001	twilight	01:09	298.2			HPF	cal					512		Yes
lrs20000003_01	skyflat	01:33	7			LRS2	cal							Yes
lrs20000004_01	skyflat	01:34	10			LRS2	cal							Yes
lrs20000005_01	skyflat	01:35	13			LRS2	cal							Yes
lrs20000006_01	skyflat	01:36	16			LRS2	cal							Yes
lrs20000007_01	skyflat	01:38	22			LRS2	cal							Yes
lrs20000008_01	skyflat	01:39	30			LRS2	cal							Yes
virus0000003_01	skyflat	01:41	7			VIRUS	cal							Yes
virus0000004_01	skyflat	01:42	10			VIRUS	cal							Yes
virus0000005_01	skyflat	01:44	14			VIRUS	cal							Yes
virus0000006_01	skyflat	01:45	18			VIRUS	cal							Yes
virus0000007_01	skyflat	01:47	26			VIRUS	cal							Yes
0002	LFC Cal	01:53	106.5			HPF	cal							Yes
0003	LFC Cal	01:55	106.5			HPF	cal							Yes
0004	LFC Cal	01:58	106.5			HPF	cal							Yes
0005	parallel	02:59	532.5	11.1	UT26-1-014	HPF	sci	2.06	1.67	20.24	0.86	401		P4
virus0000008_01	parallel	02:59	583			VIRUS	sci							Yes
0006	LFC Cal	03:09	106.5			HPF	cal							Yes
0007	LFC Cal	03:13	106.5			HPF	cal							Yes
lrs20000009_01	parallel	03:13	360			LRS2	sci							Yes
virus0000009_01	parallel	03:13	360	5.0	UT26-1-008	VIRUS	sci	2.24	1.76	21.97	0.84			Yes
0008	LFC Cal	03:15	106.5			HPF	cal							Yes
lrs20000009_02	parallel	03:20	360			LRS2	sci							Yes
virus0000009_02	parallel	03:20	360	1.0	UT26-1-008	VIRUS	sci	2.25	1.61	21.96	0.85			Yes
lrs20000009_03	parallel	03:27	360			LRS2	sci							Yes
virus0000009_03	parallel	03:27	360	1.0	UT26-1-008	VIRUS	sci	2.14	1.46	21.97	0.86			Yes
0009	LFC Cal	03:40	106.5			HPF	cal							Yes
lrs20000010_01	parallel	03:40	600			LRS2	sci							Yes
virus0000010_01	parallel	03:40	600	7.0	M26-1-010	VIRUS	sci	2.25		21.82	0.93			Yes
0010	LFC Cal	03:43	106.5			HPF	cal							Yes
0011	LFC Cal	03:45	106.5			HPF	cal							Yes
lrs20000010_02	parallel	03:51	600			LRS2	sci							Yes
virus0000010_02	parallel	03:51	600	1.0	M26-1-010	VIRUS	sci	2.24		21.81	0.92			Yes
lrs20000010_03	parallel	04:03	600			LRS2	sci							Yes
virus0000010_03	parallel	04:03	600	2.0	M26-1-010	VIRUS	sci	2.13		21.70	1.05			Yes
0012	LFC Cal	04:17	106.5			HPF	cal							Yes
lrs20000011_01	parallel	04:17	360			LRS2	sci							Yes
virus0000011_01	parallel	04:17	360	4.0	UT26-1-008	VIRUS	sci	2.13		21.79	0.87			Yes
0013	LFC Cal	04:20	106.5			HPF	cal							Yes
lrs20000011_02	parallel	04:24	360			LRS2	sci							Yes
virus0000011_02	parallel	04:24	360	1.0	UT26-1-008	VIRUS	sci	2.15		21.76	0.88			Yes
lrs20000011_03	parallel	04:32	360			LRS2	sci							Yes
virus0000011_03	parallel	04:32	360	2.0	UT26-1-008	VIRUS	sci	2.43		21.74	0.89			Yes
virus0000012_01	parallel	05:09	1023			VIRUS	sci							Yes
0014	parallel	05:10	969.1	7.8	UT26-1-014	HPF	sci	1.60	1.22	20.39	0.85	507		P4
0015	LFC Cal	05:28	106.5			HPF	cal							Yes
0016	LFC Cal	05:33	106.5			HPF	cal							Yes
lrs20000012_01	parallel	05:33	360			LRS2	sci							Yes
virus0000013_01	parallel	05:33	360	7.0	UT26-1-008	VIRUS	sci	1.79	1.16	21.87	0.94			Yes
0017	LFC Cal	05:36	106.5			HPF	cal							Yes
lrs20000012_02	parallel	05:40	360			LRS2	sci							Yes
virus0000013_02	parallel	05:40	360	1.0	UT26-1-008	VIRUS	sci	1.72	1.35	21.84	0.91			Yes
lrs20000012_03	parallel	05:47	360			LRS2	sci							Yes
virus0000013_03	parallel	05:47	360	1.0	UT26-1-008	VIRUS	sci	1.49	1.23	21.81	0.93			Yes
0018	LFC Cal	05:56	106.5			HPF	cal							Yes
lrs20000013_01	parallel	05:56	360			LRS2	sci							Yes
virus0000014_01	parallel	05:56	360	3.0	UT26-1-008	VIRUS	sci	1.61	1.17	21.83	0.89			Yes
0019	LFC Cal	05:59	106.5			HPF	cal							Yes
lrs20000013_02	parallel	06:03	360			LRS2	sci							Yes
virus0000014_02	parallel	06:03	360	1.0	UT26-1-008	VIRUS	sci	1.59	1.43	21.80	0.87			Yes
lrs20000013_03	parallel	06:11	360			LRS2	sci							Yes
virus0000014_03	parallel	06:11	360	2.0	UT26-1-008	VIRUS	sci	1.67		21.77	0.88			Yes
lrs20000014_01	parallel	06:19	360			LRS2	sci							Yes
virus0000015_01	parallel	06:19	360	2.0	UT26-1-008	VIRUS	sci	1.90		21.76	0.94			Yes
0020	LFC Cal	06:20	106.5			HPF	cal							Yes
0021	LFC Cal	06:22	106.5			HPF	cal							Yes
lrs20000014_02	parallel	06:27	360			LRS2	sci							Yes
virus0000015_02	parallel	06:27	360	2.0	UT26-1-008	VIRUS	sci	1.69		21.72	0.92			Yes
lrs20000014_03	parallel	06:34	360			LRS2	sci							Yes
virus0000015_03	parallel	06:34	360	1.0	UT26-1-008	VIRUS	sci	1.70		21.67	0.93			Yes
0022	LFC Cal	06:45	106.5			HPF	cal							Yes
lrs20000015_01	parallel	06:45	360			LRS2	sci							Yes
virus0000016_01	parallel	06:45	360	5.0	UT26-1-008	VIRUS	sci	1.71		22.14	0.71			Yes
0023	LFC Cal	06:48	106.5			HPF	cal							Yes
lrs20000015_02	parallel	06:52	360			LRS2	sci							Yes
virus0000016_02	parallel	06:52	360	1.0	UT26-1-008	VIRUS	sci	1.62		22.16	0.72			Yes
lrs20000015_03	parallel	07:00	360			LRS2	sci							Yes
virus0000016_03	parallel	07:00	360	2.0	UT26-1-008	VIRUS	sci	1.70		22.13	0.72			Yes
0024	parallel	07:11	969.1	4.8	UT26-1-003	HPF	sci	2.21		20.55	0.75	14	poor image quality	No
virus0000017_01	parallel	07:11	2047			VIRUS	sci							Yes
0025	parallel	07:28	969.1	0.8	UT26-1-003	HPF	sci	2.21		20.50	0.87	19	poor image quality	No
lrs20000016_01	parallel	07:50	360			LRS2	sci							Yes
virus0000018_01	parallel	07:50	360	6.0	UT26-1-008	VIRUS	sci	2.02	1.65	22.04	0.92			Yes
0026	LFC Cal	07:51	106.5			HPF	cal							Yes
0027	LFC Cal	07:53	106.5			HPF	cal							Yes
lrs20000016_02	parallel	07:58	360			LRS2	sci							Yes
virus0000018_02	parallel	07:58	360	2.0	UT26-1-008	VIRUS	sci	1.76	1.42	22.05	0.90			Yes
lrs20000016_03	parallel	08:05	360			LRS2	sci							Yes
virus0000018_03	parallel	08:05	360	1.0	UT26-1-008	VIRUS	sci	1.75	1.50	22.04	0.90			Yes
0028	LFC Cal	08:19	106.5			HPF	cal							Yes
lrs20000017_01	parallel	08:19	1000			LRS2	sci							Yes
virus0000019_01	parallel	08:19	1000	7.3	UT26-1-018	VIRUS	sci	2.06	1.23	21.86	0.73			Yes
0029	LFC Cal	08:21	106.5			HPF	cal							Yes
0030	LFC Cal	08:23	106.5			HPF	cal							Yes
lrs20000017_02	parallel	08:36	1000			LRS2	sci							Yes
virus0000019_02	parallel	08:36	1000	1.3	UT26-1-018	VIRUS	sci	1.93	1.21	21.81	0.75			Yes
lrs20000017_03	parallel	08:54	1000			LRS2	sci							Yes
virus0000019_03	parallel	08:54	1000	1.3	UT26-1-018	VIRUS	sci	1.82	1.25	21.84	0.76			Yes
virus0000020_01	SDSSJ151421_052_E	09:16	120	5.0		VIRUS	spec	2.06	1.31	21.88	0.90			Yes
virus0000020_02	SDSSJ151421_052_E	09:20	120	2.0		VIRUS	spec	1.89	1.42	21.85	0.90			Yes
virus0000020_03	SDSSJ151421_052_E	09:23	120	1.0		VIRUS	spec	1.84	1.20	21.85	0.77			Yes
0031	LFC Cal	09:30	106.5			HPF	cal							Yes
lrs20000018_01	parallel	09:30	360			LRS2	sci							Yes
virus0000021_01	parallel	09:30	360	5.0	UT26-1-008	VIRUS	sci	1.82	1.27	21.85	0.82			Yes
0032	LFC Cal	09:33	106.5			HPF	cal							Yes
lrs20000018_02	parallel	09:37	360			LRS2	sci							Yes
virus0000021_02	parallel	09:37	360	1.0	UT26-1-008	VIRUS	sci	1.88	1.21	21.84	0.82			Yes
lrs20000018_03	parallel	09:44	360			LRS2	sci							Yes
virus0000021_03	parallel	09:45	360	2.0	UT26-1-008	VIRUS	sci	1.84	1.34	21.86	0.82			Yes
virus0000022_01	parallel	09:58	1023			VIRUS	sci							Yes
0033	parallel	09:59	969.1	7.8	PSU26-1-024	HPF	sci	1.77	1.19	20.37	0.89	123		Yes
virus0000023_01	parallel	10:20	1023			VIRUS	sci							Yes
0034	parallel	10:21	969.1	5.8	PSU26-1-007	HPF	sci	1.59	1.04	20.40	0.85	49		Yes
0035	LFC Cal	10:39	106.5			HPF	cal							Yes
0036	parallel	10:43	969.1	6.8	PSU26-1-023	HPF	sci	1.74	0.99	20.36	0.86	87		Yes
virus0000024_01	parallel	10:43	2047			VIRUS	sci							Yes
0037	parallel	11:00	969.1	0.8	PSU26-1-023	HPF	sci	1.73	1.01	20.34	0.88	95		Yes
0038	LFC Cal	11:18	106.5			HPF	cal							Yes
virus0000025_01	parallel	11:23	1023			VIRUS	sci							Yes
0039	parallel	11:24	969.1	6.8	PSU26-1-007	HPF	sci	1.65	0.98	20.39	0.86	8		Yes
0040	LFC Cal	11:42	106.5			HPF	cal							Yes
virus0000026_01	parallel	11:49	1023			VIRUS	sci							Yes
0041	parallel	11:50	969.1	9.8	UT26-1-014	HPF	sci	1.61	0.99	20.03	0.94	354		Yes
0042	LFC Cal	12:08	106.5			HPF	cal							Yes
lrs20000019_01	bias	12:12	0			LRS2	cal							Yes
virus0000027_01	bias	12:12	0			VIRUS	cal							Yes
virus0000028_01	Cd-A	12:15	15		ENG-002	VIRUS	cal							Yes
virus0000029_01	Hg	12:17	15		ENG-002	VIRUS	cal							Yes
0043	Dark	12:26	319.5			HPF	cal							Yes
0044	Quartz FCU	12:38	74.5			HPF	cal							Yes
0045	Quartz FCU	12:40	74.5			HPF	cal							Yes
0046	Quartz FCU	12:41	74.5			HPF	cal							Yes
0047	Quartz FCU	12:43	74.5			HPF	cal							Yes
0048	Quartz FCU	12:45	74.5			HPF	cal							Yes
0049	Quartz FCU	12:47	74.5			HPF	cal							Yes
0050	Quartz FCU	12:49	74.5			HPF	cal							Yes
0051	Alpha Bright Cal	12:51	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	12:53	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	12:55	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	12:57	85.2			HPF	cal							Yes
0055	LFC FCU	12:59	106.5			HPF	cal							Yes
0056	LFC FCU	13:02	106.5			HPF	cal							Yes
0057	LFC FCU	13:04	106.5			HPF	cal							Yes
0058	LFC FCU	13:06	106.5			HPF	cal							Yes
0059	LFC FCU	13:09	106.5			HPF	cal							Yes
0060	LFC FCU	13:11	106.5			HPF	cal							Yes
0061	LFC Cal	13:14	106.5			HPF	cal							Yes
0062	LFC Cal	13:16	106.5			HPF	cal							Yes
0063	Etalon Cal	13:24	159.8			HPF	cal							Yes
0064	Etalon Cal	13:27	159.8			HPF	cal							Yes
0065	Etalon Cal	13:30	159.8			HPF	cal							Yes
0066	Etalon Cal	13:34	159.8			HPF	cal							Yes
0067	UNe Slave Cal	13:37	426			HPF	cal							Yes
0068	UNe Slave Cal	13:45	426			HPF	cal							Yes
0069	UNe Slave Cal	13:53	426			HPF	cal							Yes
0070	UNe Slave Cal	14:00	426			HPF	cal							Yes
0071	UNe Slave Cal	14:08	426			HPF	cal							Yes
0072	UNe Slave Cal	14:16	426			HPF	cal							Yes
0072	LFC Cal	21:50	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:06	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:06	20			VIRUS	cal							Yes
virus0009901_01	bias	22:08	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:08	20			LRS2	cal							Yes
virus0009902_01	dark	22:10	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:11	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:12	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:13	15			LRS2	cal							Yes
0073	Dark	22:36	319.5			HPF	cal							Yes
0074	Quartz FCU	22:43	74.5			HPF	cal							Yes
0075	Quartz FCU	22:44	74.5			HPF	cal							Yes
0076	Quartz FCU	22:46	74.5			HPF	cal							Yes
0077	Quartz FCU	22:48	74.5			HPF	cal							Yes
0078	Quartz FCU	22:50	74.5			HPF	cal							Yes
0079	Quartz FCU	22:51	74.5			HPF	cal							Yes
0080	Quartz FCU	22:53	74.5			HPF	cal							Yes
0081	Alpha Bright Cal	22:56	85.2			HPF	cal							Yes
0082	Alpha Bright Cal	22:57	85.2			HPF	cal							Yes
0083	Alpha Bright Cal	22:59	85.2			HPF	cal							Yes
0084	Alpha Bright Cal	23:01	85.2			HPF	cal							Yes
0085	LFC FCU	23:04	106.5			HPF	cal							Yes
0086	LFC FCU	23:06	106.5			HPF	cal							Yes
0087	LFC Cal	23:09	106.5			HPF	cal							Yes
0088	LFC Cal	23:11	106.5			HPF	cal							Yes
0089	Etalon Cal	23:14	159.8			HPF	cal							Yes
0090	UNe Slave Cal	23:18	426			HPF	cal							Yes
lrs20000016_01	flat_Qth_R	23:19	15			LRS2	cal							Yes
lrs20000016_02	flat_Qth_R	23:20	15			LRS2	cal							Yes
lrs20000016_03	flat_Qth_R	23:22	15			LRS2	cal							Yes
lrs20000016_04	flat_Qth_R	23:23	15			LRS2	cal							Yes
lrs20000016_05	flat_Qth_R	23:24	15			LRS2	cal							Yes
lrs20000017_01	flat_ldls_long_B	23:25	20			LRS2	cal							Yes
0091	UNe Slave Cal	23:26	426			HPF	cal							Yes
lrs20000017_02	flat_ldls_long_B	23:27	20			LRS2	cal							Yes
lrs20000017_03	flat_ldls_long_B	23:28	20			LRS2	cal							Yes
lrs20000018_01	Cd-A_B	23:29	29			LRS2	cal							Yes
lrs20000018_02	Cd-A_B	23:31	29			LRS2	cal							Yes
lrs20000018_03	Cd-A_B	23:32	29			LRS2	cal							Yes
0092	UNe Slave Cal	23:33	426			HPF	cal							Yes
lrs20000019_01	FeAr_R	23:34	15			LRS2	cal							Yes
lrs20000019_02	FeAr_R	23:35	15			LRS2	cal							Yes
lrs20000019_03	FeAr_R	23:36	15			LRS2	cal							Yes
lrs20000020_01	Hg_R	23:37	20			LRS2	cal							Yes
lrs20000020_02	Hg_R	23:39	20			LRS2	cal							Yes
lrs20000020_03	Hg_R	23:40	20			LRS2	cal							Yes
0093	UNe Slave Cal	23:41	426			HPF	cal							Yes
lrs20000021_01	Hg_B	23:41	15			LRS2	cal							Yes
lrs20000021_02	Hg_B	23:42	15			LRS2	cal							Yes
lrs20000021_03	Hg_B	23:44	15			LRS2	cal							Yes
0094	UNe Slave Cal	23:49	426			HPF	cal							Yes
virus0000023_01	flat_ldls_long	23:50	15			VIRUS	cal							Yes
virus0000023_02	flat_ldls_long	23:51	15			VIRUS	cal							Yes
virus0000023_03	flat_ldls_long	23:53	15			VIRUS	cal							Yes
virus0000024_01	Cd-A	23:54	15			VIRUS	cal							Yes
virus0000024_02	Cd-A	23:56	15			VIRUS	cal							Yes
0095	UNe Slave Cal	23:57	426			HPF	cal							Yes
virus0000024_03	Cd-A	23:57	15			VIRUS	cal							Yes
virus0000025_01	Hg	23:59	15			VIRUS	cal							Yes