HET Night Report Reader

Civil Date	Ephemerides
2026-03-25	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:18	02:03	02:31	11:31	12:00	12:46	-	08:44
Night Length	9:00		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:17	24.2	23.8	11:59	twilight	10:42
Total Time Open					10:42

Program	Night Priority	Science
02:31	Science
04:05	Idle due to weather (queue hole)
04:16	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	02:16	0.66	0.78	95	-7892	23.4	23.9	23.4	110	3	First of Night
07:52	08:16	0.62	0.75	95	-5648	19.8	20.2	20.5	200	18	Stack/Re-stack
11:50	11:58	0.91	1.05	130	-5648	19.1	19.7	19.9	195	11	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6659	08:42-08:47	00:05	OTT seemingly stops receiving user input; mismatch between reported activity in UI vs logs

TO Comments	none

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000034_02	flat_ldls_long	00:00	15			VIRUS	cal							Yes
virus0000034_03	flat_ldls_long	00:01	15			VIRUS	cal							Yes
virus0000035_01	Cd-A	00:03	15			VIRUS	cal							Yes
virus0000035_02	Cd-A	00:04	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:05	426			HPF	cal							Yes
virus0000035_03	Cd-A	00:05	15			VIRUS	cal							Yes
virus0000036_01	Hg	00:07	15			VIRUS	cal							Yes
virus0000036_02	Hg	00:08	15			VIRUS	cal							Yes
virus0000036_03	Hg	00:10	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:11	0			LRS2	cal							Yes
virus0000001_01	bias	00:11	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:12	0			LRS2	cal							Yes
virus0000001_02	bias	00:12	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:12	0			LRS2	cal							Yes
virus0000001_03	bias	00:13	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:13	0			LRS2	cal							Yes
virus0000001_04	bias	00:14	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:14	0			LRS2	cal							Yes
virus0000001_05	bias	00:15	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:15	0			LRS2	cal							Yes
virus0000001_06	bias	00:15	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:16	0			LRS2	cal							Yes
virus0000001_07	bias	00:16	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:17	0			LRS2	cal							Yes
virus0000001_08	bias	00:17	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:18	0			LRS2	cal							Yes
virus0000001_09	bias	00:18	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:19	0			LRS2	cal							Yes
virus0000001_10	bias	00:19	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:19	0			LRS2	cal							Yes
virus0000001_11	bias	00:20	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:20	360			LRS2	cal							Yes
virus0000002_01	dark	00:21	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:27	360			LRS2	cal							Yes
virus0000002_02	dark	00:28	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:34	360			LRS2	cal							Yes
virus0000002_03	dark	00:34	360			VIRUS	cal							Yes
lrs20000003_01	skyflat	01:22	7			LRS2	cal							Yes
lrs20000004_01	skyflat	01:23	10			LRS2	cal							Yes
lrs20000005_01	skyflat	01:24	13			LRS2	cal							Yes
lrs20000006_01	skyflat	01:25	16			LRS2	cal							Yes
lrs20000007_01	skyflat	01:27	22			LRS2	cal							Yes
lrs20000008_01	skyflat	01:28	30			LRS2	cal							Yes
virus0000003_01	skyflat	01:31	7			VIRUS	cal							Yes
virus0000004_01	skyflat	01:32	10			VIRUS	cal							Yes
virus0000005_01	skyflat	01:33	14			VIRUS	cal							Yes
virus0000006_01	skyflat	01:35	18			VIRUS	cal							Yes
virus0000007_01	skyflat	01:36	26			VIRUS	cal							Yes
0002	LFC Cal	01:49	106.5			HPF	cal							Yes
0003	LFC Cal	01:51	106.5			HPF	cal							Yes
0004	LFC Cal	01:53	106.5			HPF	cal							Yes
0005	LFC Cal	02:16	106.5			HPF	cal							Yes
0006	parallel	02:24	617.7	7.7	UT26-1-007	HPF	sci	1.58	1.27	18.92	0.90	74		P4
virus0000008_01	parallel	02:24	1984			VIRUS	sci							Yes
0007	parallel	02:35	617.7	0.7	UT26-1-007	HPF	sci	1.51	1.25	18.88	0.90	70		P4
0008	parallel	02:46	617.7	1.7	UT26-1-007	HPF	sci	1.57	1.25	18.72	0.82	58		P4
0009	LFC Cal	02:58	106.5			HPF	cal							Yes
lrs20000009_01	FEIGE34_056_E	03:09	60	12.0		LRS2	spec	1.60	1.18	20.24	0.72			Yes
lrs20000010_01	FEIGE34_066_E	03:13	60	3.0		LRS2	spec	1.69	1.32	19.79	0.82			Yes
0010	LFC Cal	03:18	106.5			HPF	cal							Yes
virus0000009_01	parallel	03:18	1200			VIRUS	sci							Yes
lrs20000011_01	parallel	03:18	1200	4.0	UT26-1-002	LRS2-B	sci	1.53	1.04	20.39	0.78			Yes
0011	LFC Cal	03:21	106.5			HPF	cal							Yes
0012	LFC Cal	03:23	106.5			HPF	cal							Yes
0013	LFC Cal	03:45	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:45	1200			VIRUS	sci							Yes
lrs20000012_01	parallel	03:45	1200	7.0	UT26-1-002	LRS2-R	sci	1.32	0.83	20.05	0.87			Yes
0014	LFC Cal	03:47	106.5			HPF	cal							Yes
0015	LFC Cal	03:50	106.5			HPF	cal							Yes
0016	parallel	04:24	308.9	7.9	UT26-1-009	HPF	sci	1.68	1.15	19.57	0.89	260		Yes
virus0000011_01	parallel	04:24	5097			VIRUS	sci							Yes
0017	parallel	04:30	308.9	0.9	UT26-1-009	HPF	sci	1.74	1.01	19.64	0.91	271		Yes
0018	parallel	04:36	308.9	0.9	UT26-1-009	HPF	sci	1.79	1.17	19.66	0.93	273		Yes
0019	parallel	04:42	308.9	0.9	UT26-1-009	HPF	sci	1.79	1.31	19.73	0.94	290		Yes
0020	parallel	04:47	308.9	-0.1	UT26-1-009	HPF	sci	1.73	1.04	19.75	0.95	312		Yes
0021	parallel	04:53	308.9	0.9	UT26-1-009	HPF	sci	1.76	1.24	19.79	0.94	308		Yes
0022	parallel	04:59	308.9	0.9	UT26-1-009	HPF	sci	1.93	0.99	20.17	0.94	243		Yes
0023	parallel	05:05	308.9	0.9	UT26-1-009	HPF	sci	1.84	1.10	20.16	1.09	279		Yes
0024	parallel	05:10	308.9	0.9	UT26-1-009	HPF	sci	1.78	1.08	20.13	1.12	270		Yes
0025	parallel	05:16	308.9	-0.1	UT26-1-009	HPF	sci	1.82	0.95	20.12	1.13	246		Yes
0026	parallel	05:22	308.9	0.9	UT26-1-009	HPF	sci	1.85	1.05	20.10	1.14	231		Yes
virus0000012_01	parallel	05:38	1060			VIRUS	sci							Yes
0027	parallel	05:39	308.9	11.9	UT26-1-007	HPF	sci	2.00	1.18	20.20	1.22	95		P4
0028	parallel	05:44	308.9	0.9	UT26-1-007	HPF	sci	2.07	0.90	20.20	1.25	96		P4
0029	parallel	05:50	308.9	-0.1	UT26-1-007	HPF	sci	2.18	0.90	20.15	1.29	90		P4
virus0000013_01	parallel	06:04	2047			VIRUS	sci							Yes
0030	parallel	06:05	969.1	9.8	UT26-1-010	HPF	sci	1.68	1.02	19.39	0.85	152		P4
0031	parallel	06:22	969.1	0.8	UT26-1-010	HPF	sci	1.68	1.02	19.01	0.81	127		P4
0032	LFC Cal	06:40	106.5			HPF	cal							Yes
0033	parallel	06:47	617.7	9.7	UT26-1-009	HPF	sci	2.30	1.06	20.86	1.11	113		P4
virus0000014_01	parallel	06:47	1321			VIRUS	sci							Yes
0034	parallel	06:58	617.7	0.7	UT26-1-009	HPF	sci	2.26	0.89	20.84	1.13	110		P4
virus0000015_01	parallel	07:16	1023			VIRUS	sci							Yes
0035	parallel	07:17	969.1	7.8	UT26-1-014	HPF	sci	2.45	1.11	20.35	1.30	235		P4
0036	LFC Cal	07:35	106.5			HPF	cal							Yes
0037	parallel	07:45	340.8	12.3	PSU26-1-010	HPF	sci	2.31	1.04	20.73	0.79	326		Yes
virus0000016_01	parallel	07:45	374			VIRUS	sci							Yes
virus0000017_01	parallel	08:24	1060			VIRUS	sci							Yes
0038	parallel	08:25	308.9	8.9	UT26-1-009	HPF	sci	1.42	0.89	20.80	1.13	136		P4
0039	parallel	08:31	308.9	0.9	UT26-1-009	HPF	sci	1.62	1.37	20.79	1.14	112		P4
0040	parallel	08:36	308.9	-0.1	UT26-1-009	HPF	sci	1.57	0.96	20.82	1.12	108		P4
0041	parallel	08:55	969.1	13.8	UT26-1-014	HPF	sci	1.68	1.03	21.27	0.96	418		P4
virus0000018_01	parallel	08:55	1023			VIRUS	sci							Yes
0042	LFC Cal	09:13	106.5			HPF	cal							Yes
virus0000019_01	parallel	09:18	5097			VIRUS	sci							Yes
0043	parallel	09:19	308.9	7.9	UT26-1-009	HPF	sci	1.55	1.03	21.03	1.00	249		Yes
0044	parallel	09:25	308.9	0.9	UT26-1-009	HPF	sci	1.43	1.07	21.04	1.00	272		Yes
0045	parallel	09:30	308.9	-0.1	UT26-1-009	HPF	sci	1.42	1.08	21.03	1.00	285		Yes
0046	parallel	09:36	308.9	0.9	UT26-1-009	HPF	sci	1.46	1.00	21.01	1.02	297		Yes
0047	parallel	09:42	308.9	0.9	UT26-1-009	HPF	sci	1.56	1.11	20.97	1.03	279		Yes
0048	parallel	09:48	308.9	0.9	UT26-1-009	HPF	sci	1.53	0.97	20.96	1.02	288		Yes
0049	parallel	09:53	308.9	0.9	UT26-1-009	HPF	sci	1.48	1.19	20.95	0.99	278		Yes
0050	parallel	09:59	308.9	-0.1	UT26-1-009	HPF	sci	1.45	0.99	20.97	0.95	259		Yes
0051	parallel	10:05	308.9	0.9	UT26-1-009	HPF	sci	1.44	0.96	20.99	0.91	230		Yes
0052	parallel	10:11	308.9	0.9	UT26-1-009	HPF	sci	1.38	1.09	20.98	0.88	221		Yes
0053	parallel	10:17	308.9	0.9	UT26-1-009	HPF	sci	1.45	1.11	20.95	0.88	191		Yes
0054	parallel	10:29	969.1	6.8	UT26-1-014	HPF	sci	1.50	1.14	20.90	1.06	473		P4
virus0000020_01	parallel	10:29	1023			VIRUS	sci							Yes
0055	LFC Cal	10:47	106.5			HPF	cal							Yes
virus0000021_01	parallel	10:54	690			VIRUS	sci							Yes
lrs20000013_01	parallel	10:54	690	9.5	PSU26-1-022	LRS2-B	sci	1.52	0.84	21.64	1.01			Yes
0056	LFC Cal	10:55	106.5			HPF	cal							Yes
0057	LFC Cal	10:57	106.5			HPF	cal							Yes
0058	LFC Cal	10:59	106.5			HPF	cal							Yes
virus0000022_01	parallel	11:14	1023			VIRUS	sci							Yes
0059	parallel	11:15	969.1	8.8	UT26-1-014	HPF	sci	1.80	1.15	20.47	1.04	305		P4
0060	LFC Cal	11:32	106.5			HPF	cal							Yes
0061	LFC Cal	11:38	106.5			HPF	cal							Yes
virus0000023_01	parallel	11:38	600			VIRUS	sci							Yes
lrs20000014_01	parallel	11:38	600	7.0	PSU26-1-014	LRS2-B	sci	1.92	1.40	21.94	0.95			P4
0062	LFC Cal	11:41	106.5			HPF	cal							Yes
0063	LFC Cal	11:43	106.5			HPF	cal							Yes
lrs20000015_01	bias	11:49	0			LRS2	cal							Yes
virus0000024_01	bias	11:50	0			VIRUS	cal							Yes
virus0000025_01	Cd-A	11:55	15		ENG26-1-002	VIRUS	cal							Yes
virus0000026_01	Hg	11:56	15		ENG26-1-002	VIRUS	cal							Yes
0064	Dark	12:03	319.5			HPF	cal							Yes
0065	Quartz FCU	12:15	74.5			HPF	cal							Yes
0066	Quartz FCU	12:17	74.5			HPF	cal							Yes
0067	Quartz FCU	12:19	74.5			HPF	cal							Yes
0068	Quartz FCU	12:20	74.5			HPF	cal							Yes
0069	Quartz FCU	12:22	74.5			HPF	cal							Yes
0070	Quartz FCU	12:24	74.5			HPF	cal							Yes
0071	Quartz FCU	12:26	74.5			HPF	cal							Yes
0072	Alpha Bright Cal	12:28	85.2			HPF	cal							Yes
0073	Alpha Bright Cal	12:30	85.2			HPF	cal							Yes
0074	Alpha Bright Cal	12:32	85.2			HPF	cal							Yes
0075	Alpha Bright Cal	12:34	85.2			HPF	cal							Yes
0076	LFC FCU	12:37	106.5			HPF	cal							Yes
0077	LFC FCU	12:39	106.5			HPF	cal							Yes
0078	LFC FCU	12:41	106.5			HPF	cal							Yes
0079	LFC FCU	12:43	106.5			HPF	cal							Yes
0080	LFC FCU	12:46	106.5			HPF	cal							Yes
0081	LFC FCU	12:48	106.5			HPF	cal							Yes
0082	LFC Cal	12:51	106.5			HPF	cal							Yes
0083	LFC Cal	12:54	106.5			HPF	cal							Yes
0084	Etalon Cal	13:01	159.8			HPF	cal							Yes
0085	Etalon Cal	13:04	159.8			HPF	cal							Yes
0086	Etalon Cal	13:07	159.8			HPF	cal							Yes
0087	Etalon Cal	13:11	159.8			HPF	cal							Yes
0088	UNe Slave Cal	13:14	426			HPF	cal							Yes
0089	UNe Slave Cal	13:22	426			HPF	cal							Yes
0090	UNe Slave Cal	13:30	426			HPF	cal							Yes
0091	UNe Slave Cal	13:38	426			HPF	cal							Yes
0092	UNe Slave Cal	13:45	426			HPF	cal							Yes
0093	UNe Slave Cal	13:53	426			HPF	cal							Yes
0078	LFC Cal	22:01	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	22:09	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	22:14	15			LRS2	cal							Yes
0079	Dark	22:44	319.5			HPF	cal							Yes
0080	Quartz FCU	22:50	74.5			HPF	cal							Yes
0081	Quartz FCU	22:52	74.5			HPF	cal							Yes
0082	Quartz FCU	22:54	74.5			HPF	cal							Yes
0083	Quartz FCU	22:56	74.5			HPF	cal							Yes
0084	Quartz FCU	22:57	74.5			HPF	cal							Yes
0085	Quartz FCU	22:59	74.5			HPF	cal							Yes
0086	Quartz FCU	23:01	74.5			HPF	cal							Yes
0087	Alpha Bright Cal	23:03	85.2			HPF	cal							Yes
0088	Alpha Bright Cal	23:05	85.2			HPF	cal							Yes
0089	Alpha Bright Cal	23:07	85.2			HPF	cal							Yes
0090	Alpha Bright Cal	23:09	85.2			HPF	cal							Yes
0091	LFC FCU	23:12	106.5			HPF	cal							Yes
0092	LFC FCU	23:14	106.5			HPF	cal							Yes
0093	LFC Cal	23:17	106.5			HPF	cal							Yes
0094	LFC Cal	23:19	106.5			HPF	cal							Yes
0095	Etalon Cal	23:22	159.8			HPF	cal							Yes
0096	UNe Slave Cal	23:26	426			HPF	cal							Yes
lrs20000020_01	flat_Qth_R	23:27	15			LRS2	cal							Yes
lrs20000020_02	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000020_03	flat_Qth_R	23:30	15			LRS2	cal							Yes
lrs20000020_04	flat_Qth_R	23:31	15			LRS2	cal							Yes
lrs20000020_05	flat_Qth_R	23:32	15			LRS2	cal							Yes
lrs20000021_01	flat_ldls_long_B	23:33	20			LRS2	cal							Yes
0097	UNe Slave Cal	23:34	426			HPF	cal							Yes
lrs20000021_02	flat_ldls_long_B	23:35	20			LRS2	cal							Yes
lrs20000021_03	flat_ldls_long_B	23:36	20			LRS2	cal							Yes
lrs20000022_01	Cd-A_B	23:37	29			LRS2	cal							Yes
lrs20000022_02	Cd-A_B	23:39	29			LRS2	cal							Yes
lrs20000022_03	Cd-A_B	23:40	29			LRS2	cal							Yes
0098	UNe Slave Cal	23:41	426			HPF	cal							Yes
lrs20000023_01	FeAr_R	23:42	15			LRS2	cal							Yes
lrs20000023_02	FeAr_R	23:43	15			LRS2	cal							Yes
lrs20000023_03	FeAr_R	23:44	15			LRS2	cal							Yes
lrs20000024_01	Hg_R	23:45	20			LRS2	cal							Yes
lrs20000024_02	Hg_R	23:47	20			LRS2	cal							Yes
lrs20000024_03	Hg_R	23:48	20			LRS2	cal							Yes
0099	UNe Slave Cal	23:49	426			HPF	cal							Yes
lrs20000025_01	Hg_B	23:49	15			LRS2	cal							Yes
lrs20000025_02	Hg_B	23:51	15			LRS2	cal							Yes
lrs20000025_03	Hg_B	23:52	15			LRS2	cal							Yes
0100	UNe Slave Cal	23:57	426			HPF	cal							Yes
virus0000034_01	flat_ldls_long	23:58	15			VIRUS	cal							Yes