HET Night Report Reader

Civil Date	Ephemerides
2026-02-16	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:52	01:37	02:05	12:13	12:41	13:28	-	-
Night Length	10:08		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
00:52	17.4	13.8	03:25	clouds	02:33
04:55	15.6	15.6	12:46	twilight	07:51
Total Time Open					10:24

Program	Night Priority	Science
02:05	Idle due to weather (clouds)
04:56	Science
09:03	Idle due to weather (clouds)
09:36	Science
10:02	Idle due to weather (clouds)
10:25	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:08	02:44	0.83	1.52	110	-5517	16.4	16.1	16.0	202	13	First of Night
12:38	12:44	0.94	1.62	30	-4689	16.0	16.6	16.6	236	15	Post-Observing

Problem Reports					no PRs

TO Comments	Clouds in the first half. Cleared off later.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000039_03	Cd-A	00:00	15			VIRUS	cal							Yes
virus0000040_01	Hg	00:02	15			VIRUS	cal							Yes
virus0000040_02	Hg	00:03	15			VIRUS	cal							Yes
virus0000040_03	Hg	00:04	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:06	0			LRS2	cal							Yes
virus0000001_01	bias	00:06	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:07	0			LRS2	cal							Yes
virus0000001_02	bias	00:07	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:07	0			LRS2	cal							Yes
virus0000001_03	bias	00:08	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:08	0			LRS2	cal							Yes
virus0000001_04	bias	00:08	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:09	0			LRS2	cal							Yes
virus0000001_05	bias	00:09	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:10	0			LRS2	cal							Yes
virus0000001_06	bias	00:10	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:11	0			LRS2	cal							Yes
virus0000001_07	bias	00:11	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:12	0			LRS2	cal							Yes
virus0000001_08	bias	00:12	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:13	0			LRS2	cal							Yes
virus0000001_09	bias	00:13	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:13	0			LRS2	cal							Yes
virus0000001_10	bias	00:14	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:14	0			LRS2	cal							Yes
virus0000001_11	bias	00:15	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:15	360			LRS2	cal							Yes
virus0000002_01	dark	00:16	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:22	360			LRS2	cal							Yes
virus0000002_02	dark	00:22	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:29	360			LRS2	cal							Yes
virus0000002_03	dark	00:29	360			VIRUS	cal							Yes
lrs20000003_01	skyflat	00:56	7			LRS2	cal							Yes
lrs20000004_01	skyflat	00:57	10			LRS2	cal							Yes
lrs20000005_01	skyflat	00:59	13			LRS2	cal							Yes
lrs20000006_01	skyflat	01:00	16			LRS2	cal							Yes
lrs20000007_01	skyflat	01:01	22			LRS2	cal							Yes
lrs20000008_01	skyflat	01:02	30			LRS2	cal							Yes
virus0000003_01	skyflat	01:05	7			VIRUS	cal							Yes
virus0000004_01	skyflat	01:06	10			VIRUS	cal							Yes
virus0000005_01	skyflat	01:07	14			VIRUS	cal							Yes
virus0000006_01	skyflat	01:09	18			VIRUS	cal							Yes
virus0000007_01	skyflat	01:10	26			VIRUS	cal							Yes
lrs20000009_01	QID 2553	01:28	2340	16.0	UT26-1-004	LRS2-B	sci	2.55		21.22	0.71			Yes
virus0000008_01	parallel	01:28	3300			VIRUS	sci							Yes
0001	LFC Cal	01:29	106.5			HPF	cal							Yes
0002	LFC Cal	01:31	106.5			HPF	cal							Yes
0003	LFC Cal	01:33	106.5			HPF	cal							Yes
0004	LFC Cal	02:52	106.5			HPF	cal							Yes
0005	LFC Cal	02:54	106.5			HPF	cal							Yes
0006	LFC Cal	02:57	106.5			HPF	cal							Yes
0007	LFC Cal	05:00	106.5			HPF	cal							Yes
virus0000009_01	parallel	05:00	1500			VIRUS	sci							Yes
lrs20000010_01	QID 413	05:00	1500	4.0	PSU26-1-022	LRS2-R	sci	1.77		20.79	0.96			Yes
0008	LFC Cal	05:03	106.5			HPF	cal							Yes
0009	LFC Cal	05:05	106.5			HPF	cal							Yes
lrs20000011_01	parallel	05:30	600			LRS2	sci							Yes
virus0000010_01	QID 476	05:30	600	5.0	UT26-1-018	VIRUS	sci	1.88		21.83	0.87			Yes
0010	LFC Cal	05:31	106.5			HPF	cal							Yes
0011	LFC Cal	05:33	106.5			HPF	cal							Yes
0012	LFC Cal	05:35	106.5			HPF	cal							Yes
lrs20000011_02	parallel	05:42	600			LRS2	sci							Yes
virus0000010_02	QID 476	05:42	600	2.0	UT26-1-018	VIRUS	sci	1.72	1.29	21.84	0.94			Yes
lrs20000011_03	parallel	05:53	600			LRS2	sci							Yes
virus0000010_03	QID 476	05:53	600	1.0	UT26-1-018	VIRUS	sci	1.88	1.45	21.87	0.84			Yes
virus0000011_01	HZ21_042_E	06:11	60	8.0		VIRUS	spec	1.84	1.12	22.13	0.58			Yes
virus0000011_02	HZ21_042_E	06:13	60	1.0		VIRUS	spec	1.81	0.83	22.12	0.55			Yes
virus0000011_03	HZ21_042_E	06:15	60	1.0		VIRUS	spec	1.88	0.94	22.04	0.54			Yes
0013	LFC Cal	06:21	106.5			HPF	cal							Yes
lrs20000012_01	parallel	06:21	480			LRS2	sci							Yes
virus0000012_01	QID 1986	06:21	480	5.0	UT26-1-008	VIRUS	sci	1.67	1.08	21.57	0.58			Yes
0014	LFC Cal	06:23	106.5			HPF	cal							Yes
0015	LFC Cal	06:26	106.5			HPF	cal							Yes
lrs20000012_02	parallel	06:30	480			LRS2	sci							Yes
virus0000012_02	QID 1986	06:30	480	1.0	UT26-1-008	VIRUS	sci	1.74	1.33	21.58	0.56			Yes
lrs20000012_03	parallel	06:39	480			LRS2	sci							Yes
virus0000012_03	QID 1986	06:39	480	1.0	UT26-1-008	VIRUS	sci	1.67	1.25	21.60	0.67			Yes
0016	LFC Cal	06:53	106.5			HPF	cal							Yes
lrs20000013_01	parallel	06:53	480			LRS2	sci							Yes
virus0000013_01	QID 362	06:53	480	6.0	UT26-1-008	VIRUS	sci	1.73	1.39	21.64	0.76			Yes
0017	LFC Cal	06:56	106.5			HPF	cal							Yes
0018	LFC Cal	06:58	106.5			HPF	cal							Yes
lrs20000013_02	parallel	07:02	480			LRS2	sci							Yes
virus0000013_02	QID 362	07:02	480	1.0	UT26-1-008	VIRUS	sci	2.01	1.40	21.60	0.71			Yes
lrs20000013_03	parallel	07:12	480			LRS2	sci							Yes
virus0000013_03	QID 362	07:12	480	2.0	UT26-1-008	VIRUS	sci	1.82	1.02	21.61	0.79			Yes
virus0000014_01	parallel	07:26	1023			VIRUS	sci							Yes
0019	QID 1862	07:27	969.1	6.8	PSU26-1-007	HPF	sci	1.89	1.48	20.92	0.55	34		P4
0020	LFC Cal	07:44	106.5			HPF	cal							Yes
virus0000015_01	parallel	07:49	1431			VIRUS	sci							Yes
0021	QID 1601	07:50	671	6.8	UT26-1-005	HPF	sci	1.78	1.38	20.53	1.11	67		Yes
0022	QID 1601	08:02	671	0.8	UT26-1-005	HPF	sci	1.89	1.31	20.43	1.07	68		Yes
virus0000016_01	parallel	08:17	1321			VIRUS	sci							Yes
0023	QID 1602	08:18	607.1	4.9	UT26-1-005	HPF	sci	2.01	1.69	20.17	0.63	60		Yes
0024	QID 1602	08:28	607.1	0.9	UT26-1-005	HPF	sci	1.93	1.70	20.07	0.59	55		Yes
lrs20000014_01	parallel	08:42	360			LRS2	sci							Yes
virus0000017_01	QID 1967	08:42	360	3.0	UT26-1-008	VIRUS	sci	1.97	1.54	21.89	0.49		thin clouds	Yes
0025	LFC Cal	08:43	106.5			HPF	cal							Yes
0026	LFC Cal	08:45	106.5			HPF	cal							Yes
lrs20000014_02	parallel	08:50	360			LRS2	sci							Yes
virus0000017_02	QID 1967	08:50	360	2.0	UT26-1-008	VIRUS	sci	1.88	1.09	21.91	0.46			Yes
lrs20000014_03	parallel	08:57	360			LRS2	sci							Yes
virus0000017_03	QID 1967	08:57	360	1.0	UT26-1-008	VIRUS	sci	2.02	1.18	21.95	0.49			Yes
lrs20000015_01	parallel	09:07	520			LRS2	sci							Yes
virus0000018_01	QID 2557	09:07	520	4.3	UT26-1-013	VIRUS	sci	2.16	1.59	21.82	0.45		clouds	No
0027	LFC Cal	09:08	106.5			HPF	cal							Yes
0028	LFC Cal	09:10	106.5			HPF	cal							Yes
0029	LFC Cal	09:12	106.5			HPF	cal							Yes
lrs20000015_02	parallel	09:17	520			LRS2	sci							Yes
virus0000018_02	QID 2557	09:17	520	1.3	UT26-1-013	VIRUS	sci	2.03	1.68	21.84	0.45			No
lrs20000015_03	parallel	09:27	520			LRS2	sci							Yes
virus0000018_03	QID 2557	09:27	520	1.3	UT26-1-013	VIRUS	sci	2.14	1.65	21.80	0.44			No
0030	HR5633_tell_std	09:42	330.2	5.5		HPF	telluric	2.02	1.68	20.01	0.60			Yes
lrs20000016_01	GRW+705824_056_E	09:52	180	5.0		LRS2	spec	2.26	1.80	21.11	0.55			Yes
lrs20000017_01	GRW+705824_066_E	09:59	180	4.0		LRS2	spec	2.19	2.05	20.36	0.54			Yes
0031	LFC Cal	10:08	106.5			HPF	cal							Yes
lrs20000018_01	parallel	10:08	1000			LRS2	sci							Yes
virus0000019_01	QID 1909	10:08	1000	6.3	UT26-1-018	VIRUS	sci	2.18	1.33	21.84	0.32		clouds, aborted	No
0032	LFC Cal	10:11	106.5			HPF	cal							Yes
0033	LFC Cal	10:13	106.5			HPF	cal							Yes
0034	QID 2538	10:29	969.1	3.8	UT26-1-003	HPF	sci	1.84	1.32	20.06	0.45	48		P4
virus0000020_01	parallel	10:29	2047			VIRUS	sci							Yes
0035	QID 2538	10:46	969.1	1.8	UT26-1-003	HPF	sci	1.88	1.21	20.13	0.55	58		P4
lrs20000019_01	parallel	11:09	480			LRS2	sci							Yes
0036	LFC Cal	11:10	106.5			HPF	cal							Yes
virus0000021_01	QID 352	11:10	480	7.0	UT26-1-008	VIRUS	sci	2.19	1.15	21.99	0.55			Yes
0037	LFC Cal	11:12	106.5			HPF	cal							Yes
0038	LFC Cal	11:14	106.5			HPF	cal							Yes
lrs20000019_02	parallel	11:19	480			LRS2	sci							Yes
virus0000021_02	QID 352	11:19	480	1.0	UT26-1-008	VIRUS	sci	2.07	1.23	22.02	0.61			Yes
lrs20000019_03	parallel	11:28	480			LRS2	sci							Yes
virus0000021_03	QID 352	11:28	480	1.0	UT26-1-008	VIRUS	sci	2.00	1.13	22.03	0.64			Yes
virus0000022_01	parallel	11:40	2047			VIRUS	sci							Yes
0039	QID 403	11:41	969.1	4.8	UT26-1-003	HPF	sci	2.06	1.66	20.28	0.75	26		Yes
0040	QID 403	11:58	969.1	0.8	UT26-1-003	HPF	sci	2.10	1.89	20.27	0.80	24		Yes
0041	LFC Cal	12:16	106.5			HPF	cal							Yes
virus0000023_01	parallel	12:20	1023			VIRUS	sci							Yes
0042	QID 1867	12:21	969.1	6.8	PSU26-1-007	HPF	sci	2.34	1.62	19.69	0.66	28		P4
lrs20000020_01	bias	12:39	0			LRS2	cal							Yes
virus0000024_01	bias	12:40	0			VIRUS	cal							Yes
virus0000025_01	Cd-A	12:42	15		ENG26-1-002	VIRUS	cal							Yes
virus0000026_01	Hg	12:44	15		ENG26-1-002	VIRUS	cal							Yes
0043	Dark	12:52	319.5			HPF	cal							Yes
0044	Quartz FCU	13:04	74.5			HPF	cal							Yes
0045	Quartz FCU	13:06	74.5			HPF	cal							Yes
0046	Quartz FCU	13:08	74.5			HPF	cal							Yes
0047	Quartz FCU	13:09	74.5			HPF	cal							Yes
0048	Quartz FCU	13:11	74.5			HPF	cal							Yes
0049	Quartz FCU	13:13	74.5			HPF	cal							Yes
0050	Quartz FCU	13:15	74.5			HPF	cal							Yes
0051	Alpha Bright Cal	13:17	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	13:19	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	13:21	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	13:23	85.2			HPF	cal							Yes
0055	LFC FCU	13:26	106.5			HPF	cal							Yes
0056	LFC FCU	13:28	106.5			HPF	cal							Yes
0057	LFC FCU	13:30	106.5			HPF	cal							Yes
0058	LFC FCU	13:32	106.5			HPF	cal							Yes
0059	LFC FCU	13:35	106.5			HPF	cal							Yes
0060	LFC FCU	13:37	106.5			HPF	cal							Yes
0061	LFC Cal	13:40	106.5			HPF	cal							Yes
0062	LFC Cal	13:42	106.5			HPF	cal							Yes
0063	Etalon Cal	13:50	159.8			HPF	cal							Yes
0064	Etalon Cal	13:53	159.8			HPF	cal							Yes
0065	Etalon Cal	13:56	159.8			HPF	cal							Yes
0066	Etalon Cal	14:00	159.8			HPF	cal							Yes
0067	UNe Slave Cal	14:03	426			HPF	cal							Yes
0068	UNe Slave Cal	14:11	426			HPF	cal							Yes
0069	UNe Slave Cal	14:19	426			HPF	cal							Yes
0070	UNe Slave Cal	14:26	426			HPF	cal							Yes
0071	UNe Slave Cal	14:34	426			HPF	cal							Yes
0072	UNe Slave Cal	14:42	426			HPF	cal							Yes
0086	LFC Cal	22:17	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:26	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:26	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	22:32	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:34	15			LRS2	cal							Yes
0087	Dark	22:39	319.5			HPF	cal							Yes
0088	Quartz FCU	22:45	74.5			HPF	cal							Yes
0089	Quartz FCU	22:47	74.5			HPF	cal							Yes
0090	Quartz FCU	22:49	74.5			HPF	cal							Yes
0091	Quartz FCU	22:51	74.5			HPF	cal							Yes
0092	Quartz FCU	22:52	74.5			HPF	cal							Yes
0093	Quartz FCU	22:54	74.5			HPF	cal							Yes
0094	Quartz FCU	22:56	74.5			HPF	cal							Yes
0095	Alpha Bright Cal	22:58	85.2			HPF	cal							Yes
0096	Alpha Bright Cal	23:00	85.2			HPF	cal							Yes
0097	Alpha Bright Cal	23:02	85.2			HPF	cal							Yes
0098	Alpha Bright Cal	23:04	85.2			HPF	cal							Yes
0099	LFC FCU	23:07	106.5			HPF	cal							Yes
0100	LFC FCU	23:09	106.5			HPF	cal							Yes
0101	LFC Cal	23:12	106.5			HPF	cal							Yes
0102	LFC Cal	23:14	106.5			HPF	cal							Yes
0103	Etalon Cal	23:17	159.8			HPF	cal							Yes
0104	UNe Slave Cal	23:21	426			HPF	cal							Yes
lrs20000028_01	flat_Qth_R	23:22	15			LRS2	cal							Yes
lrs20000028_02	flat_Qth_R	23:23	15			LRS2	cal							Yes
lrs20000028_03	flat_Qth_R	23:25	15			LRS2	cal							Yes
lrs20000028_04	flat_Qth_R	23:26	15			LRS2	cal							Yes
lrs20000028_05	flat_Qth_R	23:27	15			LRS2	cal							Yes
0105	UNe Slave Cal	23:28	426			HPF	cal							Yes
lrs20000029_01	flat_ldls_long_B	23:28	20			LRS2	cal							Yes
lrs20000029_02	flat_ldls_long_B	23:30	20			LRS2	cal							Yes
lrs20000029_03	flat_ldls_long_B	23:31	20			LRS2	cal							Yes
lrs20000030_01	Cd-A_B	23:32	29			LRS2	cal							Yes
lrs20000030_02	Cd-A_B	23:34	29			LRS2	cal							Yes
lrs20000030_03	Cd-A_B	23:35	29			LRS2	cal							Yes
0106	UNe Slave Cal	23:36	426			HPF	cal							Yes
lrs20000031_01	FeAr_R	23:37	15			LRS2	cal							Yes
lrs20000031_02	FeAr_R	23:38	15			LRS2	cal							Yes
lrs20000031_03	FeAr_R	23:39	15			LRS2	cal							Yes
lrs20000032_01	Hg_R	23:40	20			LRS2	cal							Yes
lrs20000032_02	Hg_R	23:42	20			LRS2	cal							Yes
lrs20000032_03	Hg_R	23:43	20			LRS2	cal							Yes
0107	UNe Slave Cal	23:44	426			HPF	cal							Yes
lrs20000033_01	Hg_B	23:44	15			LRS2	cal							Yes
lrs20000033_02	Hg_B	23:45	15			LRS2	cal							Yes
lrs20000033_03	Hg_B	23:47	15			LRS2	cal							Yes
0108	UNe Slave Cal	23:52	426			HPF	cal							Yes
virus0000038_01	flat_ldls_long	23:53	15			VIRUS	cal							Yes
virus0000038_02	flat_ldls_long	23:55	15			VIRUS	cal							Yes
virus0000038_03	flat_ldls_long	23:56	15			VIRUS	cal							Yes
virus0000039_01	Cd-A	23:57	15			VIRUS	cal							Yes
0109	UNe Slave Cal	23:59	426			HPF	cal							Yes
virus0000039_02	Cd-A	23:59	15			VIRUS	cal							Yes