HET Night Report Reader

Civil Date	Ephemerides
2026-02-24	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:58	01:43	02:11	12:06	12:34	13:20	-	08:49
Night Length	9:55		Sunset Temperature

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

Overlaps
TO Overlap	RA Overlap
-	Zach Vanderbosch

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:58	16.7	14.2	03:25	wind	02:27
04:23	16.0	15.6	04:50	wind	00:27
05:05	15.9	15.8	07:27	wind	02:22
08:19	14.8	15.1	09:20	wind	01:01
09:39	14.6	14.9	12:52	twilight	03:13
Total Time Open					9:30

Program	Night Priority	Science
02:11	Science
03:20	Idle due to weather (high wind)
04:24	Science
04:46	Idle due to weather (high wind)
05:03	Science
06:49	Idle due to weather (high wind, clouds)
11:13	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:23	02:00	0.75	1.48	90	-5349	16.3	15.8	15.4	282	28	First of Night
12:24	12:31	0.86	1.49	270	-4823	13.4	13.8	14.0	283	29	Post-Observing
12:31	12:49				-3943	13.2	13.6	13.8	284	26	End of Night

Problem Reports					no PRs

TO Comments	High winds and some 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
lrs20000021_01	Hg_R	00:00	20			LRS2	cal							Yes
lrs20000021_02	Hg_R	00:02	20			LRS2	cal							Yes
lrs20000021_03	Hg_R	00:03	20			LRS2	cal							Yes
0001	UNe Slave Cal	00:04	426			HPF	cal							Yes
lrs20000022_01	Hg_B	00:04	15			LRS2	cal							Yes
lrs20000022_02	Hg_B	00:05	15			LRS2	cal							Yes
lrs20000022_03	Hg_B	00:07	15			LRS2	cal							Yes
0002	UNe Slave Cal	00:12	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:13	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:15	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	00:16	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	00:17	15			VIRUS	cal							Yes
virus0000002_02	Cd-A	00:19	15			VIRUS	cal							Yes
0003	UNe Slave Cal	00:20	426			HPF	cal							Yes
virus0000002_03	Cd-A	00:20	15			VIRUS	cal							Yes
virus0000003_01	Hg	00:22	15			VIRUS	cal							Yes
virus0000003_02	Hg	00:23	15			VIRUS	cal							Yes
virus0000003_03	Hg	00:24	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:26	360			LRS2	cal							Yes
virus0000004_01	dark	00:26	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:32	360			LRS2	cal							Yes
virus0000004_02	dark	00:33	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:39	360			LRS2	cal							Yes
virus0000004_03	dark	00:40	360			VIRUS	cal							Yes
lrs20000002_01	skyflat	01:02	7			LRS2	cal							Yes
lrs20000003_01	skyflat	01:03	10			LRS2	cal							Yes
lrs20000004_01	skyflat	01:04	13			LRS2	cal							Yes
lrs20000005_01	skyflat	01:05	16			LRS2	cal							Yes
lrs20000006_01	skyflat	01:06	22			LRS2	cal							Yes
lrs20000007_01	skyflat	01:08	30			LRS2	cal							Yes
virus0000005_01	skyflat	01:10	7			VIRUS	cal							Yes
virus0000006_01	skyflat	01:12	10			VIRUS	cal							Yes
virus0000007_01	skyflat	01:13	14			VIRUS	cal							Yes
virus0000008_01	skyflat	01:14	18			VIRUS	cal							Yes
virus0000009_01	skyflat	01:16	26			VIRUS	cal							Yes
0004	LFC Cal	01:20	106.5			HPF	cal							Yes
0005	LFC Cal	01:22	106.5			HPF	cal							Yes
0006	LFC Cal	01:24	106.5			HPF	cal							Yes
virus0000010_01	parallel	02:07	2047			VIRUS	sci							Yes
0007	QID 1411	02:08	969.1	6.8	PSU26-1-002	HPF	sci	1.79	1.13	19.85	0.83	213		P4
0008	QID 1411	02:25	969.1	0.8	PSU26-1-002	HPF	sci	1.64	0.83	19.88	0.87	244		P4
0009	LFC Cal	02:43	106.5			HPF	cal							Yes
0010	QID 1481	02:46	969.1	5.8	UT26-1-010	HPF	sci	1.74	1.11	19.72	0.96	246		P4
virus0000011_01	parallel	02:46	2047			VIRUS	sci							Yes
0011	QID 1481	03:04	969.1	0.8	UT26-1-010	HPF	sci	1.84	1.35	19.72	1.06	212		P4
0012	LFC Cal	03:21	106.5			HPF	cal							Yes
lrs20000008_01	bias	03:24	0			LRS2	cal							Yes
virus0000012_01	bias	03:24	0			VIRUS	cal							Yes
lrs20000008_02	bias	03:25	0			LRS2	cal							Yes
virus0000012_02	bias	03:25	0			VIRUS	cal							Yes
lrs20000008_03	bias	03:26	0			LRS2	cal							Yes
virus0000012_03	bias	03:26	0			VIRUS	cal							Yes
lrs20000008_04	bias	03:27	0			LRS2	cal							Yes
virus0000012_04	bias	03:27	0			VIRUS	cal							Yes
lrs20000008_05	bias	03:28	0			LRS2	cal							Yes
virus0000012_05	bias	03:28	0			VIRUS	cal							Yes
lrs20000008_06	bias	03:29	0			LRS2	cal							Yes
virus0000012_06	bias	03:29	0			VIRUS	cal							Yes
lrs20000008_07	bias	03:29	0			LRS2	cal							Yes
virus0000012_07	bias	03:30	0			VIRUS	cal							Yes
lrs20000008_08	bias	03:30	0			LRS2	cal							Yes
virus0000012_08	bias	03:31	0			VIRUS	cal							Yes
lrs20000008_09	bias	03:31	0			LRS2	cal							Yes
virus0000012_09	bias	03:31	0			VIRUS	cal							Yes
lrs20000008_10	bias	03:32	0			LRS2	cal							Yes
virus0000012_10	bias	03:32	0			VIRUS	cal							Yes
lrs20000008_11	bias	03:33	0			LRS2	cal							Yes
virus0000012_11	bias	03:33	0			VIRUS	cal							Yes
virus0000013_01	parallel	04:28	1060			VIRUS	sci							Yes
0013	QID 2531	04:29	308.9	4.9	UT26-1-009	HPF	sci	2.14	1.25	19.87	0.80	88		P4
0014	QID 2531	04:35	308.9	0.9	UT26-1-009	HPF	sci	2.08	1.33	19.90	0.80	96		P4
0015	QID 2531	04:40	308.9	0.9	UT26-1-009	HPF	sci	2.11	1.39	19.99	0.82	94		P4
0016	LFC Cal	05:09	106.5			HPF	cal							Yes
lrs20000009_01	QID 2891	05:09	180	6.0	UT26-1-016	LRS2-B	sci	2.29	1.33	20.34	0.91			P4
virus0000014_01	parallel	05:15	360			VIRUS	sci							Yes
0017	LFC Cal	05:16	106.5			HPF	cal							Yes
lrs20000010_01	QID 2892	05:16	360	4.0	UT26-1-016	LRS2-R	sci	2.30	1.53	20.08	0.89			P4
0018	LFC Cal	05:18	106.5			HPF	cal							Yes
0019	HR3437_tell_std	05:30	330.2	8.5		HPF	telluric	1.99	1.73	19.57	1.17			Yes
virus0000015_01	HZ21_042_E	05:41	60	5.0		VIRUS	spec	2.40	1.53	20.49	0.49			Yes
virus0000015_02	HZ21_042_E	05:44	60	2.0		VIRUS	spec	2.35	1.79	20.49	0.52			Yes
virus0000015_03	HZ21_042_E	05:46	60	1.0		VIRUS	spec	2.42	1.83	20.50	0.53			Yes
virus0000016_01	parallel	05:56	300			VIRUS	spec							Yes
lrs20000011_01	HZ21_056_E	05:56	300	9.0		LRS2	spec	2.23	1.43	20.35	0.63			Yes
virus0000017_01	parallel	06:04	360			VIRUS	spec							Yes
lrs20000012_01	HZ21_066_E	06:04	360	3.0		LRS2	spec	2.14	1.56	20.14	0.92			Yes
0020	LFC Cal	06:18	106.5			HPF	cal							Yes
virus0000018_01	parallel	06:18	900			VIRUS	sci							Yes
lrs20000013_01	QID 1425	06:18	900	8.0	PSU26-1-012	LRS2-B	sci	2.36	1.68	20.22	0.78			Yes
0021	LFC Cal	06:20	106.5			HPF	cal							Yes
0022	LFC Cal	06:23	106.5			HPF	cal							Yes
virus0000018_02	parallel	06:34	900			VIRUS	sci							Yes
lrs20000013_02	QID 1425	06:34	900	1.0	PSU26-1-012	LRS2-B	sci	2.33	1.47	20.18	0.72			Yes
virus0000019_01	parallel	06:53	1023			VIRUS	sci							Yes
0023	QID 1862	06:54	969.1	4.8	PSU26-1-007	HPF	sci	2.40	1.98	19.75	0.34	23	clouds	No
0024	LFC Cal	07:12	106.5			HPF	cal							Yes
0025	QID 2671	07:17	649.6	7.2	UT26-1-003	HPF	sci	2.22	1.64	19.58	0.62	57	telescope closed due to weather	No
virus0000020_01	parallel	07:17	2083			VIRUS	sci							Yes
0026	QID 2700	08:24	969.1	4.8	UT26-1-003	HPF	sci	2.27	1.62	20.12	0.47	9	clouds	No
virus0000021_01	parallel	08:24	2047			VIRUS	sci							Yes
0027	QID 2700	08:41	969.1	1.8	UT26-1-003	HPF	sci	2.05	1.56	20.17	0.36	9		No
0028	LFC Cal	09:02	106.5			HPF	cal							Yes
lrs20000014_01	QID 2911	09:02	180	4.0	UT26-1-016	LRS2-B	sci	2.26	1.56	21.60	0.27			No
0029	LFC Cal	09:14	106.5			HPF	cal							Yes
virus0000022_01	parallel	09:14	360			VIRUS	sci							Yes
lrs20000015_01	1291120362349158016_066_E	09:14	360			LRS2-R	cal	2.31	1.75	20.56	0.28			No
0030	LFC Cal	09:16	106.5			HPF	cal							Yes
0031	LFC Cal	09:34	106.5			HPF	cal							Yes
0032	LFC Cal	09:36	106.5			HPF	cal							Yes
0033	LFC Cal	09:38	106.5			HPF	cal							Yes
virus0000023_01	parallel	09:44	2047			VIRUS	sci							Yes
0034	QID 1886	09:45	969.1	9.8	UT26-1-003	HPF	sci	2.31	1.49	20.02	0.37	10	clouds	No
0035	QID 1886	10:02	969.1	0.8	UT26-1-003	HPF	sci	2.03	1.61	19.95	0.30	13		No
lrs20000016_01	dark	10:22	1800			LRS2	cal							Yes
0036	LFC Cal	11:19	106.5			HPF	cal							Yes
virus0000024_01	parallel	11:19	500			VIRUS	sci							Yes
lrs20000017_01	QID 1413	11:19	500	6.7	PSU26-1-014	LRS2-B	sci	2.32	1.08	21.63	0.55			P4
0037	LFC Cal	11:22	106.5			HPF	cal							Yes
0038	LFC Cal	11:24	106.5			HPF	cal							Yes
virus0000025_01	parallel	11:32	2047			VIRUS	sci							Yes
0039	QID 2664	11:33	969.1	4.8	UT26-1-003	HPF	sci	2.08	1.25	20.03	0.68	28		P4
0040	QID 2664	11:50	969.1	0.8	UT26-1-003	HPF	sci	1.88	1.44	19.89	0.47	21		P4
virus0000026_01	parallel	12:18	300			VIRUS	sci							Yes
0041	LFC Cal	12:19	106.5			HPF	cal							Yes
lrs20000018_01	QID 35	12:19	300	13.0	PSU26-1-003	LRS2-R	sci	1.93	1.22	20.17	0.39			P4
0042	LFC Cal	12:21	106.5			HPF	cal							Yes
lrs20000019_01	bias	12:25	0			LRS2	cal							Yes
virus0000027_01	bias	12:25	0			VIRUS	cal							Yes
virus0000028_01	Cd-A	12:30	15		ENG26-1-002	VIRUS	cal							Yes
virus0000029_01	Hg	12:31	15		ENG26-1-002	VIRUS	cal							Yes
0043	Dark	12:53	319.5			HPF	cal							Yes
0044	Quartz FCU	13:05	74.5			HPF	cal							Yes
0045	Quartz FCU	13:07	74.5			HPF	cal							Yes
0046	Quartz FCU	13:08	74.5			HPF	cal							Yes
0047	Quartz FCU	13:10	74.5			HPF	cal							Yes
0048	Quartz FCU	13:12	74.5			HPF	cal							Yes
0049	Quartz FCU	13:14	74.5			HPF	cal							Yes
0050	Quartz FCU	13:16	74.5			HPF	cal							Yes
0051	Alpha Bright Cal	13:18	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	13:20	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	13:22	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	13:24	85.2			HPF	cal							Yes
0055	LFC FCU	13:26	106.5			HPF	cal							Yes
0056	LFC FCU	13:29	106.5			HPF	cal							Yes
0057	LFC FCU	13:31	106.5			HPF	cal							Yes
0058	LFC FCU	13:33	106.5			HPF	cal							Yes
0059	LFC FCU	13:36	106.5			HPF	cal							Yes
0060	LFC FCU	13:38	106.5			HPF	cal							Yes
0061	LFC Cal	13:41	106.5			HPF	cal							Yes
0062	LFC Cal	13:43	106.5			HPF	cal							Yes
0063	Etalon Cal	13:51	159.8			HPF	cal							Yes
0064	Etalon Cal	13:54	159.8			HPF	cal							Yes
0065	Etalon Cal	13:57	159.8			HPF	cal							Yes
0066	Etalon Cal	14:00	159.8			HPF	cal							Yes
0067	UNe Slave Cal	14:04	426			HPF	cal							Yes
0068	UNe Slave Cal	14:12	426			HPF	cal							Yes
0069	UNe Slave Cal	14:20	426			HPF	cal							Yes
0070	UNe Slave Cal	14:27	426			HPF	cal							Yes
0071	UNe Slave Cal	14:35	426			HPF	cal							Yes
0072	UNe Slave Cal	14:43	426			HPF	cal							Yes
0082	LFC Cal	22:20	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:26	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:27	20			VIRUS	cal							Yes
virus0009901_01	bias	22:28	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:29	20			LRS2	cal							Yes
virus0009902_01	dark	22:30	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:31	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:33	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:34	15			LRS2	cal							Yes
virus0009907_01	flat_Qth	22:43	20			VIRUS	cal							Yes
virus0009908_01	bias	22:45	0			VIRUS	cal							Yes
virus0009909_01	dark	22:46	15			VIRUS	cal							Yes
0083	Dark	22:59	319.5			HPF	cal							Yes
0084	Quartz FCU	23:05	74.5			HPF	cal							Yes
0085	Quartz FCU	23:07	74.5			HPF	cal							Yes
0086	Quartz FCU	23:09	74.5			HPF	cal							Yes
0087	Quartz FCU	23:11	74.5			HPF	cal							Yes
0088	Quartz FCU	23:12	74.5			HPF	cal							Yes
0089	Quartz FCU	23:14	74.5			HPF	cal							Yes
0090	Quartz FCU	23:16	74.5			HPF	cal							Yes
0091	Alpha Bright Cal	23:18	85.2			HPF	cal							Yes
0092	Alpha Bright Cal	23:20	85.2			HPF	cal							Yes
0093	Alpha Bright Cal	23:22	85.2			HPF	cal							Yes
0094	Alpha Bright Cal	23:24	85.2			HPF	cal							Yes
0095	LFC FCU	23:27	106.5			HPF	cal							Yes
0096	LFC FCU	23:29	106.5			HPF	cal							Yes
0097	LFC Cal	23:32	106.5			HPF	cal							Yes
0098	LFC Cal	23:34	106.5			HPF	cal							Yes
0099	Etalon Cal	23:37	159.8			HPF	cal							Yes
0100	UNe Slave Cal	23:41	426			HPF	cal							Yes
lrs20000017_01	flat_Qth_R	23:42	15			LRS2	cal							Yes
lrs20000017_02	flat_Qth_R	23:43	15			LRS2	cal							Yes
lrs20000017_03	flat_Qth_R	23:45	15			LRS2	cal							Yes
lrs20000017_04	flat_Qth_R	23:46	15			LRS2	cal							Yes
lrs20000017_05	flat_Qth_R	23:47	15			LRS2	cal							Yes
lrs20000018_01	flat_ldls_long_B	23:48	20			LRS2	cal							Yes
0101	UNe Slave Cal	23:49	426			HPF	cal							Yes
lrs20000018_02	flat_ldls_long_B	23:50	20			LRS2	cal							Yes
lrs20000018_03	flat_ldls_long_B	23:51	20			LRS2	cal							Yes
lrs20000019_01	Cd-A_B	23:52	29			LRS2	cal							Yes
lrs20000019_02	Cd-A_B	23:54	29			LRS2	cal							Yes
lrs20000019_03	Cd-A_B	23:55	29			LRS2	cal							Yes
0102	UNe Slave Cal	23:56	426			HPF	cal							Yes
lrs20000020_01	FeAr_R	23:57	15			LRS2	cal							Yes
lrs20000020_02	FeAr_R	23:58	15			LRS2	cal							Yes
lrs20000020_03	FeAr_R	23:59	15			LRS2	cal							Yes