HET Night Report Reader

Civil Date	Ephemerides
2026-03-19	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:14	01:59	02:27	11:39	12:07	12:53	-	02:02
Night Length	9:12		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:05	21.6	20.7	12:14	twilight	11:09
Total Time Open					11:09

Program	Night Priority	Science
02:27	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:43	02:20	0.94	1.21	90	-7093	21.9	21.6	22.2	63	5	First of Night
05:53	06:06				-5335	18.5	18.9	18.9	197	16	Stack/Re-stack
12:06	12:11	0.89	1.43	-120	-4732	18.3	19.1	18.8	226	6	Post-Observing

Problem Reports					no PRs

TO Comments	Clear 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
virus0000034_09	bias	00:00	0			VIRUS	cal							Yes
lrs20000033_10	bias	00:00	0			LRS2	cal							Yes
virus0000034_10	bias	00:00	0			VIRUS	cal							Yes
lrs20000033_11	bias	00:01	0			LRS2	cal							Yes
virus0000034_11	bias	00:01	0			VIRUS	cal							Yes
lrs20000034_01	dark	00:02	360			LRS2	cal							Yes
virus0000035_01	dark	00:02	360			VIRUS	cal							Yes
lrs20000034_02	dark	00:09	360			LRS2	cal							Yes
virus0000035_02	dark	00:09	360			VIRUS	cal							Yes
lrs20000034_03	dark	00:16	360			LRS2	cal							Yes
virus0000035_03	dark	00:16	360			VIRUS	cal							Yes
0001	twilight	01:11	298.2			HPF	cal					490		Yes
lrs20000001_01	skyflat	01:18	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:19	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:20	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:21	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:23	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:24	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:27	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:28	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:29	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:31	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:32	26			VIRUS	cal							Yes
0002	LFC Cal	02:00	106.5			HPF	cal							Yes
0003	LFC Cal	02:02	106.5			HPF	cal							Yes
0004	LFC Cal	02:04	106.5			HPF	cal							Yes
virus0000006_01	parallel	02:28	583			VIRUS	sci							Yes
0005	parallel	02:29	532.5	9.1	UT26-1-014	HPF	sci	1.86		20.04	0.93	497		P4
0006	LFC Cal	02:39	106.5			HPF	cal							Yes
lrs20000007_01	parallel	02:43	360			LRS2	sci							Yes
virus0000007_01	parallel	02:43	360	5.0	UT26-1-008	VIRUS	sci	1.99	1.48	21.70	1.13			Yes
0007	LFC Cal	02:44	106.5			HPF	cal							Yes
0008	LFC Cal	02:46	106.5			HPF	cal							Yes
lrs20000007_02	parallel	02:51	360			LRS2	sci							Yes
virus0000007_02	parallel	02:51	360	2.0	UT26-1-008	VIRUS	sci	1.92	1.29	21.67	1.19			Yes
lrs20000007_03	parallel	02:58	360			LRS2	sci							Yes
virus0000007_03	parallel	02:58	360	1.0	UT26-1-008	VIRUS	sci	2.16	1.34	21.62	1.20			Yes
lrs20000008_01	parallel	03:08	360			LRS2	sci							Yes
virus0000008_01	parallel	03:08	360	4.0	UT26-1-008	VIRUS	sci	1.98	1.28	21.89	0.91			Yes
0009	LFC Cal	03:09	106.5			HPF	cal							Yes
0010	LFC Cal	03:11	106.5			HPF	cal							Yes
lrs20000008_02	parallel	03:15	360			LRS2	sci							Yes
virus0000008_02	parallel	03:15	360	1.0	UT26-1-008	VIRUS	sci	2.07	1.51	21.89	0.93			Yes
lrs20000008_03	parallel	03:23	360			LRS2	sci							Yes
virus0000008_03	parallel	03:23	360	2.0	UT26-1-008	VIRUS	sci	2.03	1.37	21.89	0.94			Yes
0011	LFC Cal	03:35	106.5			HPF	cal							Yes
lrs20000009_01	parallel	03:35	600			LRS2	sci							Yes
virus0000009_01	parallel	03:35	600	6.0	UT26-1-018	VIRUS	sci	1.96	1.42	21.79	0.85			Yes
0012	LFC Cal	03:37	106.5			HPF	cal							Yes
0013	LFC Cal	03:40	106.5			HPF	cal							Yes
lrs20000009_02	parallel	03:46	600			LRS2	sci							Yes
virus0000009_02	parallel	03:46	600	1.0	UT26-1-018	VIRUS	sci	1.96	1.23	21.79	0.85			Yes
lrs20000009_03	parallel	03:57	600			LRS2	sci							Yes
virus0000009_03	parallel	03:57	600	1.0	UT26-1-018	VIRUS	sci	1.83	1.36	21.65	0.93			Yes
lrs20000010_01	parallel	04:13	360			LRS2	sci							Yes
virus0000010_01	parallel	04:13	360	6.0	UT26-1-008	VIRUS	sci	2.15	1.33	21.77	0.92			Yes
0014	LFC Cal	04:14	106.5			HPF	cal							Yes
0015	LFC Cal	04:16	106.5			HPF	cal							Yes
lrs20000010_02	parallel	04:20	360			LRS2	sci							Yes
virus0000010_02	parallel	04:20	360	1.0	UT26-1-008	VIRUS	sci	2.01	1.05	21.75	0.92			Yes
lrs20000010_03	parallel	04:28	360			LRS2	sci							Yes
virus0000010_03	parallel	04:28	360	2.0	UT26-1-008	VIRUS	sci	1.92	1.15	21.74	0.93			Yes
virus0000011_01	parallel	04:47	5097			VIRUS	sci							Yes
0016	parallel	04:48	308.9	13.9	UT26-1-009	HPF	sci	2.24	1.23	20.93	1.09	222	need to wait till track start	Yes
0017	parallel	04:53	308.9	-0.1	UT26-1-009	HPF	sci	2.14	1.10	20.93	1.11	250		Yes
0018	parallel	04:59	308.9	0.9	UT26-1-009	HPF	sci	2.24	1.10	20.96	1.15	252		Yes
0019	parallel	05:05	308.9	0.9	UT26-1-009	HPF	sci	2.24	1.23	20.98	1.17	264		Yes
0020	parallel	05:11	308.9	0.9	UT26-1-009	HPF	sci	2.38	1.24	21.00	1.17	267		Yes
0021	parallel	05:16	308.9	0.9	UT26-1-009	HPF	sci	2.36	1.21	21.02	1.15	289		Yes
0022	parallel	05:22	308.9	-0.1	UT26-1-009	HPF	sci	2.40	1.06	21.00	1.16	277		Yes
0023	parallel	05:28	308.9	0.9	UT26-1-009	HPF	sci	2.21	1.25	20.96	1.19	271		Yes
0024	parallel	05:34	308.9	0.9	UT26-1-009	HPF	sci	2.19	1.20	20.93	1.23	246		Yes
0025	parallel	05:39	308.9	0.9	UT26-1-009	HPF	sci	2.33	1.19	20.92	1.25	215		Yes
0026	parallel	05:45	308.9	-0.1	UT26-1-009	HPF	sci	2.43	1.11	20.94	1.26	188		Yes
0027	parallel	05:51	308.9	0.9	UT26-1-009	HPF	sci	2.20	1.28	20.95	1.22	17	track ended	No
0028	parallel	05:57	308.9	0.9	UT26-1-009	HPF	sci		1.39				track ended	No
0029	parallel	06:03	308.9	0.9	UT26-1-009	HPF	sci	2.28	1.30	20.87	1.02		track ended	No
0030	LFC Cal	06:11	106.5			HPF	cal							Yes
virus0000012_01	parallel	06:11	1500			VIRUS	sci							Yes
lrs20000011_01	parallel	06:11	1500	3.0	UT26-1-002	LRS2-R	sci	1.80	1.39	20.92	1.03			Yes
0031	LFC Cal	06:13	106.5			HPF	cal							Yes
0032	LFC Cal	06:15	106.5			HPF	cal							Yes
lrs20000012_01	parallel	06:39	360			LRS2	sci							Yes
virus0000013_01	parallel	06:39	360	3.0	UT26-1-008	VIRUS	sci	1.61	1.19	22.08	0.87			Yes
0033	LFC Cal	06:40	106.5			HPF	cal							Yes
0034	LFC Cal	06:42	106.5			HPF	cal							Yes
lrs20000012_02	parallel	06:47	360			LRS2	sci							Yes
virus0000013_02	parallel	06:47	360	2.0	UT26-1-008	VIRUS	sci	1.77	1.15	22.07	0.87			Yes
lrs20000012_03	parallel	06:54	360			LRS2	sci							Yes
virus0000013_03	parallel	06:54	360	1.0	UT26-1-008	VIRUS	sci	1.75	1.24	22.06	0.88			Yes
lrs20000013_01	BD+262606_056_E	07:04	60	4.0		LRS2	spec	1.86	1.40	22.06	0.69			Yes
lrs20000014_01	BD+262606_066_E	07:07	30	2.5		LRS2	spec	1.94	1.29	20.94	0.79			Yes
0035	LFC Cal	07:12	106.5			HPF	cal							Yes
lrs20000015_01	parallel	07:12	360			LRS2	sci							Yes
virus0000014_01	parallel	07:12	360	4.0	UT26-1-008	VIRUS	sci	1.59	1.24	21.80	0.99			Yes
0036	LFC Cal	07:15	106.5			HPF	cal							Yes
lrs20000015_02	parallel	07:19	360			LRS2	sci							Yes
virus0000014_02	parallel	07:19	360	1.0	UT26-1-008	VIRUS	sci	1.55	1.15	21.77	0.98			Yes
lrs20000015_03	parallel	07:27	360			LRS2	sci							Yes
virus0000014_03	parallel	07:27	360	2.0	UT26-1-008	VIRUS	sci	1.54	1.14	21.75	0.96			Yes
0037	parallel	07:39	969.1	5.8	UT26-1-014	HPF	sci	1.57	1.22	20.16	0.99	288		P4
virus0000015_01	parallel	07:39	1023			VIRUS	sci							Yes
0038	LFC Cal	07:57	106.5			HPF	cal							Yes
virus0000016_01	P177D_052_E	08:01	60	6.0		VIRUS	spec	2.04	1.13	22.15	0.70			Yes
virus0000016_02	P177D_052_E	08:04	60	2.0		VIRUS	spec	1.85	1.17	22.14	0.72			Yes
virus0000016_03	P177D_052_E	08:06	60	1.0		VIRUS	spec	1.91	1.17	22.17	0.71			Yes
0039	LFC Cal	08:11	106.5			HPF	cal							Yes
lrs20000016_01	parallel	08:11	1000			LRS2	sci							Yes
virus0000017_01	parallel	08:11	1000	4.3	UT26-1-018	VIRUS	sci	1.77	1.03	21.95	0.88			Yes
0040	LFC Cal	08:14	106.5			HPF	cal							Yes
0041	LFC Cal	08:16	106.5			HPF	cal							Yes
lrs20000016_02	parallel	08:29	1000			LRS2	sci							Yes
virus0000017_02	parallel	08:29	1000	1.3	UT26-1-018	VIRUS	sci	2.03	1.50	21.98	0.90			Yes
lrs20000016_03	parallel	08:47	1000			LRS2	sci							Yes
virus0000017_03	parallel	08:47	1000	1.3	UT26-1-018	VIRUS	sci	1.95	1.46	21.98	0.91			Yes
0042	LFC Cal	09:07	106.5			HPF	cal							Yes
lrs20000017_01	parallel	09:07	360			LRS2	sci							Yes
virus0000018_01	parallel	09:07	360	3.0	UT26-1-008	VIRUS	sci	2.06	1.35	21.94	0.88			Yes
0043	LFC Cal	09:10	106.5			HPF	cal							Yes
lrs20000017_02	parallel	09:14	360			LRS2	sci							Yes
virus0000018_02	parallel	09:14	360	1.0	UT26-1-008	VIRUS	sci	2.01	1.25	21.91	0.88			Yes
lrs20000017_03	parallel	09:21	360			LRS2	sci							Yes
virus0000018_03	parallel	09:21	360	1.0	UT26-1-008	VIRUS	sci	2.11	1.35	21.93	0.87			Yes
virus0000019_01	parallel	09:40	4019			VIRUS	sci							Yes
0044	parallel	09:41	308.9	13.9	UT26-1-009	HPF	sci	1.39	1.19	20.36	0.85	274		Yes
0045	parallel	09:47	308.9	0.9	UT26-1-009	HPF	sci	1.34	1.25	20.35	0.85	293		Yes
0046	parallel	09:52	308.9	0.9	UT26-1-009	HPF	sci	1.37	1.07	20.34	0.88	306		Yes
0047	parallel	09:58	308.9	-0.1	UT26-1-009	HPF	sci	1.45	1.15	20.31	0.90	313		Yes
0048	parallel	10:04	308.9	0.9	UT26-1-009	HPF	sci	1.49	1.29	20.26	0.93	316		Yes
0049	parallel	10:10	308.9	0.9	UT26-1-009	HPF	sci	1.52	1.23	20.19	0.93	319		Yes
0050	parallel	10:15	308.9	0.9	UT26-1-009	HPF	sci	1.52	1.37	20.17	0.93	310		Yes
0051	parallel	10:21	308.9	-0.1	UT26-1-009	HPF	sci	1.50	1.21	20.13	0.93	294		Yes
0052	parallel	10:27	308.9	0.9	UT26-1-009	HPF	sci	1.51	1.19	20.10	0.91	267		Yes
0053	parallel	10:33	308.9	0.9	UT26-1-009	HPF	sci	1.46	1.35	20.05	0.90	242		Yes
0054	parallel	10:39	308.9	0.9	UT26-1-009	HPF	sci	1.38	1.05	19.99	0.92	226		Yes
virus0000020_01	parallel	10:51	2047			VIRUS	sci							Yes
0055	parallel	10:52	969.1	7.8	PSU26-1-023	HPF	sci	1.63	1.19	20.22	0.93	95		Yes
0056	parallel	11:09	969.1	0.8	PSU26-1-023	HPF	sci	1.58	1.15	20.17	0.99	89		Yes
0057	LFC Cal	11:27	106.5			HPF	cal							Yes
virus0000021_01	parallel	11:32	1959			VIRUS	sci							Yes
0058	parallel	11:33	915.9	7.7	G26-1-002	HPF	sci	1.48	1.28	20.21	0.94	128		Yes
0059	parallel	11:49	915.9	0.7	G26-1-002	HPF	sci	1.39	1.19	19.84	0.93	127		Yes
0060	LFC Cal	12:06	106.5			HPF	cal							Yes
lrs20000018_01	bias	12:07	0			LRS2	cal							Yes
virus0000022_01	bias	12:08	0			VIRUS	cal							Yes
virus0000023_01	Cd-A	12:11	15		ENG26-1-002	VIRUS	cal							Yes
virus0000024_01	Hg	12:12	15		ENG26-1-002	VIRUS	cal							Yes
0061	Dark	12:21	319.5			HPF	cal							Yes
0062	Quartz FCU	12:33	74.5			HPF	cal							Yes
0063	Quartz FCU	12:35	74.5			HPF	cal							Yes
0064	Quartz FCU	12:36	74.5			HPF	cal							Yes
0065	Quartz FCU	12:38	74.5			HPF	cal							Yes
0066	Quartz FCU	12:40	74.5			HPF	cal							Yes
0067	Quartz FCU	12:42	74.5			HPF	cal							Yes
0068	Quartz FCU	12:43	74.5			HPF	cal							Yes
0069	Alpha Bright Cal	12:46	85.2			HPF	cal							Yes
0070	Alpha Bright Cal	12:48	85.2			HPF	cal							Yes
0071	Alpha Bright Cal	12:50	85.2			HPF	cal							Yes
0072	Alpha Bright Cal	12:52	85.2			HPF	cal							Yes
0073	LFC FCU	12:54	106.5			HPF	cal							Yes
0074	LFC FCU	12:57	106.5			HPF	cal							Yes
0075	LFC FCU	12:59	106.5			HPF	cal							Yes
0076	LFC FCU	13:01	106.5			HPF	cal							Yes
0077	LFC FCU	13:04	106.5			HPF	cal							Yes
0078	LFC FCU	13:06	106.5			HPF	cal							Yes
0079	LFC Cal	13:09	106.5			HPF	cal							Yes
0080	LFC Cal	13:11	106.5			HPF	cal							Yes
0081	Etalon Cal	13:19	159.8			HPF	cal							Yes
0082	Etalon Cal	13:22	159.8			HPF	cal							Yes
0083	Etalon Cal	13:25	159.8			HPF	cal							Yes
0084	Etalon Cal	13:28	159.8			HPF	cal							Yes
0085	UNe Slave Cal	13:32	426			HPF	cal							Yes
0086	UNe Slave Cal	13:40	426			HPF	cal							Yes
0087	UNe Slave Cal	13:48	426			HPF	cal							Yes
0088	UNe Slave Cal	13:55	426			HPF	cal							Yes
0089	UNe Slave Cal	14:03	426			HPF	cal							Yes
0090	UNe Slave Cal	14:11	426			HPF	cal							Yes
0078	LFC Cal	21:50	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:10	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:11	20			VIRUS	cal							Yes
virus0009901_01	bias	22:13	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:13	20			LRS2	cal							Yes
virus0009902_01	dark	22:15	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:15	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:17	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:18	15			LRS2	cal							Yes
0079	Dark	22:26	319.5			HPF	cal							Yes
0080	Quartz FCU	22:32	74.5			HPF	cal							Yes
0081	Quartz FCU	22:34	74.5			HPF	cal							Yes
0082	Quartz FCU	22:36	74.5			HPF	cal							Yes
0083	Quartz FCU	22:38	74.5			HPF	cal							Yes
0084	Quartz FCU	22:39	74.5			HPF	cal							Yes
0085	Quartz FCU	22:41	74.5			HPF	cal							Yes
0086	Quartz FCU	22:43	74.5			HPF	cal							Yes
0087	Alpha Bright Cal	22:45	85.2			HPF	cal							Yes
0088	Alpha Bright Cal	22:47	85.2			HPF	cal							Yes
0089	Alpha Bright Cal	22:49	85.2			HPF	cal							Yes
0090	Alpha Bright Cal	22:51	85.2			HPF	cal							Yes
0091	LFC FCU	22:54	106.5			HPF	cal							Yes
0092	LFC FCU	22:56	106.5			HPF	cal							Yes
0093	LFC Cal	22:59	106.5			HPF	cal							Yes
0094	LFC Cal	23:01	106.5			HPF	cal							Yes
0095	Etalon Cal	23:04	159.8			HPF	cal							Yes
0096	UNe Slave Cal	23:07	426			HPF	cal							Yes
lrs20000027_01	flat_Qth_R	23:09	15			LRS2	cal							Yes
lrs20000027_02	flat_Qth_R	23:10	15			LRS2	cal							Yes
lrs20000027_03	flat_Qth_R	23:12	15			LRS2	cal							Yes
lrs20000027_04	flat_Qth_R	23:13	15			LRS2	cal							Yes
lrs20000027_05	flat_Qth_R	23:14	15			LRS2	cal							Yes
0097	UNe Slave Cal	23:15	426			HPF	cal							Yes
lrs20000028_01	flat_ldls_long_B	23:15	20			LRS2	cal							Yes
lrs20000028_02	flat_ldls_long_B	23:17	20			LRS2	cal							Yes
lrs20000028_03	flat_ldls_long_B	23:18	20			LRS2	cal							Yes
lrs20000029_01	Cd-A_B	23:19	29			LRS2	cal							Yes
lrs20000029_02	Cd-A_B	23:21	29			LRS2	cal							Yes
lrs20000029_03	Cd-A_B	23:22	29			LRS2	cal							Yes
0098	UNe Slave Cal	23:23	426			HPF	cal							Yes
lrs20000030_01	FeAr_R	23:24	15			LRS2	cal							Yes
lrs20000030_02	FeAr_R	23:25	15			LRS2	cal							Yes
lrs20000030_03	FeAr_R	23:26	15			LRS2	cal							Yes
lrs20000031_01	Hg_R	23:27	20			LRS2	cal							Yes
lrs20000031_02	Hg_R	23:29	20			LRS2	cal							Yes
lrs20000031_03	Hg_R	23:30	20			LRS2	cal							Yes
0099	UNe Slave Cal	23:31	426			HPF	cal							Yes
lrs20000032_01	Hg_B	23:31	15			LRS2	cal							Yes
lrs20000032_02	Hg_B	23:32	15			LRS2	cal							Yes
lrs20000032_03	Hg_B	23:34	15			LRS2	cal							Yes
0100	UNe Slave Cal	23:39	426			HPF	cal							Yes
virus0000031_01	flat_ldls_long	23:40	15			VIRUS	cal							Yes
virus0000031_02	flat_ldls_long	23:41	15			VIRUS	cal							Yes
virus0000031_03	flat_ldls_long	23:43	15			VIRUS	cal							Yes
virus0000032_01	Cd-A	23:44	15			VIRUS	cal							Yes
0101	UNe Slave Cal	23:46	426			HPF	cal							Yes
virus0000032_02	Cd-A	23:46	15			VIRUS	cal							Yes
virus0000032_03	Cd-A	23:47	15			VIRUS	cal							Yes
virus0000033_01	Hg	23:48	15			VIRUS	cal							Yes
virus0000033_02	Hg	23:50	15			VIRUS	cal							Yes
virus0000033_03	Hg	23:51	15			VIRUS	cal							Yes
lrs20000033_01	bias	23:53	0			LRS2	cal							Yes
virus0000034_01	bias	23:53	0			VIRUS	cal							Yes
lrs20000033_02	bias	23:53	0			LRS2	cal							Yes
virus0000034_02	bias	23:53	0			VIRUS	cal							Yes
lrs20000033_03	bias	23:54	0			LRS2	cal							Yes
virus0000034_03	bias	23:54	0			VIRUS	cal							Yes
lrs20000033_04	bias	23:55	0			LRS2	cal							Yes
virus0000034_04	bias	23:55	0			VIRUS	cal							Yes
lrs20000033_05	bias	23:56	0			LRS2	cal							Yes
virus0000034_05	bias	23:56	0			VIRUS	cal							Yes
lrs20000033_06	bias	23:57	0			LRS2	cal							Yes
virus0000034_06	bias	23:57	0			VIRUS	cal							Yes
lrs20000033_07	bias	23:58	0			LRS2	cal							Yes
virus0000034_07	bias	23:58	0			VIRUS	cal							Yes
lrs20000033_08	bias	23:58	0			LRS2	cal							Yes
virus0000034_08	bias	23:59	0			VIRUS	cal							Yes
lrs20000033_09	bias	23:59	0			LRS2	cal							Yes