HET Night Report Reader

Civil Date	Ephemerides
2026-02-01	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:39	01:26	01:54	12:24	12:52	13:40	00:36	-
Night Length	10:30		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Jose Fernandez	Cassie Crowe

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:44	8.0	9.0	12:16	twilight	11:32
Total Time Open					11:32

Program	Night Priority	Science
01:54	Idle due to weather (low transparancy, high sky brightness)
02:29	Science
03:28	Idle due to weather (high sky brightness and/or low transparancy)
05:07	Science
07:18	Idle due to weather (high sky brightness and/or low transparancy)
07:34	Science
07:55	Idle due to weather (high sky brightness and/or low transparancy)
08:18	Science
09:00	Idle due to weather (high sky brightness and/or low transparancy)
10:58	Science
11:36	Idle due to weather (high sky brightness and/or low transparancy)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:04	01:45	0.58	0.87	35	-210	6.5	7.6	8.1	155	7	First of Night
↪ Comments			Chasing temps.
12:08	12:13	0.53	0.87	-115	+543	7.5	7.9	7.7	225	10	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6489	04:03-04:14	00:11	HPF ACQ set exposure busy

TO Comments	Thin 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
virus0000036_01	Cd-A	00:00	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:01	426			HPF	cal							Yes
virus0000036_02	Cd-A	00:01	15			VIRUS	cal							Yes
virus0000036_03	Cd-A	00:02	15			VIRUS	cal							Yes
virus0000037_01	Hg	00:04	15			VIRUS	cal							Yes
virus0000037_02	Hg	00:05	15			VIRUS	cal							Yes
virus0000037_03	Hg	00:07	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:08	360			LRS2	cal							Yes
virus0000001_01	dark	00:08	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:15	360			LRS2	cal							Yes
virus0000001_02	dark	00:15	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:21	360			LRS2	cal							Yes
virus0000001_03	dark	00:22	360			VIRUS	cal							Yes
lrs20000002_01	skyflat	00:44	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:45	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:46	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:47	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:49	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:50	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:53	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:54	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:55	14			VIRUS	cal							Yes
virus0000005_01	skyflat	00:57	18			VIRUS	cal							Yes
virus0000006_01	skyflat	00:58	26			VIRUS	cal							Yes
lrs20000008_01	bias	01:01	0			LRS2	cal							Yes
virus0000007_01	bias	01:01	0			VIRUS	cal							Yes
lrs20000008_02	bias	01:01	0			LRS2	cal							Yes
virus0000007_02	bias	01:02	0			VIRUS	cal							Yes
lrs20000008_03	bias	01:02	0			LRS2	cal							Yes
virus0000007_03	bias	01:02	0			VIRUS	cal							Yes
lrs20000008_04	bias	01:03	0			LRS2	cal							Yes
virus0000007_04	bias	01:03	0			VIRUS	cal							Yes
lrs20000008_05	bias	01:04	0			LRS2	cal							Yes
virus0000007_05	bias	01:04	0			VIRUS	cal							Yes
lrs20000008_06	bias	01:05	0			LRS2	cal							Yes
virus0000007_06	bias	01:05	0			VIRUS	cal							Yes
lrs20000008_07	bias	01:06	0			LRS2	cal							Yes
virus0000007_07	bias	01:06	0			VIRUS	cal							Yes
lrs20000008_08	bias	01:06	0			LRS2	cal							Yes
virus0000007_08	bias	01:07	0			VIRUS	cal							Yes
lrs20000008_09	bias	01:07	0			LRS2	cal							Yes
virus0000007_09	bias	01:08	0			VIRUS	cal							Yes
lrs20000008_10	bias	01:08	0			LRS2	cal							Yes
virus0000007_10	bias	01:09	0			VIRUS	cal							Yes
lrs20000008_11	bias	01:09	0			LRS2	cal							Yes
virus0000007_11	bias	01:09	0			VIRUS	cal							Yes
0002	QID 1948	01:56	969.1	4.8	UT26-1-010	HPF	sci	1.51	0.95	17.18	0.42	50	low transparency, high sky brightness	No
virus0000008_01	parallel	01:56	2047			VIRUS	sci							Yes
0003	QID 1948	02:13	969.1	0.8	UT26-1-010	HPF	sci	1.53	0.90	16.94	0.35	50	low transparency, high sky brightness	No
0004	LFC Cal	02:31	106.5			HPF	cal							Yes
0005	HR1873_tell_std	02:38	330.2	9.5		HPF	telluric	1.44	0.99	16.94	0.39			Yes
virus0000009_01	parallel	02:54	2047			VIRUS	sci							Yes
0006	QID 1946	02:55	969.1	10.8	UT26-1-010	HPF	sci	1.27	0.77	17.18	0.45	100	transparency and sky brightness marginally out of spec, second exposure within requirements	Yes
0007	QID 1946	03:12	969.1	0.8	UT26-1-010	HPF	sci	1.31	0.77	17.57	0.61	125		Yes
0008	LFC Cal	03:30	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:36	891			VIRUS	sci							Yes
0009	QID 1768	03:37	841.4	9.0	UT26-1-014	HPF	sci	1.31	1.02	15.55	0.67	492	sky brightness too high	No
0010	LFC Cal	03:52	106.5			HPF	cal							Yes
virus0000011_01	parallel	04:17	1060			VIRUS	sci							Yes
0011	QID 333	04:18	308.9	26.9	UT26-1-007	HPF	sci	1.54	1.20	17.16		61	low transparency	No
0012	QID 333	04:24	308.9	0.9	UT26-1-007	HPF	sci	1.48	1.10	17.06	0.41	59	low transparency	No
0013	QID 333	04:29	308.9	0.9	UT26-1-007	HPF	sci	1.44	1.15	17.04	0.43	56	low transparency	No
virus0000012_01	parallel	04:41	583			VIRUS	sci							Yes
0014	QID 1763	04:42	532.5	7.1	UT26-1-014	HPF	sci	1.43	1.14	16.64	0.45	347	low transparancy, high sky brightness	No
0015	LFC Cal	04:52	106.5			HPF	cal							Yes
0016	LFC Cal	05:01	106.5			HPF	cal							Yes
virus0000013_01	parallel	05:01	360			VIRUS	sci							Yes
lrs20000009_01	QID 1693	05:01	360	10.0	UT26-1-016	LRS2-R	sci	1.45	1.08	16.65	0.31		low transparency	No
0017	LFC Cal	05:03	106.5			HPF	cal							Yes
0018	QID 1799	05:17	969.1	9.8	UT26-1-014	HPF	sci	1.29	1.09	17.81	0.80	412		P4
virus0000014_01	parallel	05:17	1023			VIRUS	sci							Yes
0019	LFC Cal	05:35	106.5			HPF	cal							Yes
0020	QID 1478	05:44	649.6	11.2	UT26-1-010	HPF	sci	1.49	1.10	16.96	0.56	335	sky brightness higher that requested, but next two exposures are within requirements	Yes
virus0000015_01	parallel	05:44	2083			VIRUS	sci							Yes
0021	QID 1478	05:56	649.6	0.2	UT26-1-010	HPF	sci	1.51	1.33	17.59	0.75	403		P4
0022	QID 1478	06:07	649.6	1.2	UT26-1-010	HPF	sci	1.45	1.01	17.54	0.73	352		P4
0023	LFC Cal	06:20	106.5			HPF	cal							Yes
virus0000016_01	parallel	06:23	360			VIRUS	sci							Yes
0024	LFC Cal	06:24	106.5			HPF	cal							Yes
lrs20000010_01	QID 1691	06:24	360	6.0	UT26-1-016	LRS2-R	sci	1.45	1.03	17.23	0.92			P4
0025	LFC Cal	06:26	106.5			HPF	cal							Yes
0026	LFC Cal	06:33	106.5			HPF	cal							Yes
lrs20000011_01	QID 1692	06:33	180	3.0	UT26-1-016	LRS2-B	sci	1.75	1.65	17.44	0.65			P4
0027	QID 1474	06:44	969.1	8.8	UT26-1-010	HPF	sci	2.08	1.83	18.06	0.66	88		P4
virus0000017_01	parallel	06:44	2047			VIRUS	sci							Yes
0028	QID 1474	07:02	969.1	0.8	UT26-1-010	HPF	sci	1.90	1.40	17.35	0.66	84	sky brightness increased after first exposure	Yes
0029	LFC Cal	07:19	106.5			HPF	cal							Yes
lrs20000012_01	HD55677_056_W	07:29	30	11.5		LRS2	spec	2.26	1.50	17.03	0.62		sky brightness too high	No
lrs20000013_01	HD55677_066_W	07:33	30	3.5		LRS2	spec	2.18	1.75	17.47	0.81			No
virus0000018_01	parallel	07:38	1023			VIRUS	sci							Yes
0030	QID 1777	07:39	969.1	4.8	UT26-1-014	HPF	sci	1.83	1.47	17.45	0.73	338		Yes
0031	LFC Cal	07:57	106.5			HPF	cal							Yes
virus0000019_01	parallel	08:01	1023			VIRUS	sci							Yes
0032	QID 1778	08:02	969.1	6.8	UT26-1-014	HPF	sci	2.10	1.41	16.45	0.54	275	sky brightness too high	No
0033	LFC Cal	08:20	106.5			HPF	cal							Yes
virus0000020_01	parallel	08:26	891			VIRUS	sci							Yes
0034	QID 1768	08:27	841.4	9.0	UT26-1-014	HPF	sci	1.94	1.88	17.32	0.76	443		Yes
0035	LFC Cal	08:42	106.5			HPF	cal							Yes
0036	LFC Cal	08:48	106.5			HPF	cal							Yes
virus0000021_01	parallel	08:48	360			VIRUS	sci							Yes
lrs20000014_01	QID 1641	08:48	360	7.0	UT26-1-016	LRS2-R	sci	2.02	1.68	17.93	0.99			P4
0037	LFC Cal	08:50	106.5			HPF	cal							Yes
0038	LFC Cal	08:57	106.5			HPF	cal							Yes
lrs20000015_01	QID 1642	08:57	180	3.0	UT26-1-016	LRS2-B	sci	2.09	1.69	17.79	0.86			P4
0039	QID 1411	09:06	969.1	5.8	PSU26-1-002	HPF	sci	1.82	1.81	15.74	0.68	211	sky brightness too high	No
virus0000022_01	parallel	09:06	2047			VIRUS	sci							Yes
0040	QID 1411	09:23	969.1	0.8	PSU26-1-002	HPF	sci	1.79	1.47	15.46	0.53	45	sky brightness too high	No
0041	LFC Cal	09:41	106.5			HPF	cal							Yes
0042	LFC Cal	10:31	106.5			HPF	cal							Yes
0043	LFC Cal	10:34	106.5			HPF	cal							Yes
0044	LFC Cal	10:36	106.5			HPF	cal							Yes
virus0000023_01	parallel	10:59	600			VIRUS	sci							Yes
0045	LFC Cal	11:00	106.5			HPF	cal							Yes
lrs20000016_01	QID 10	11:00	600	2.0	PSU26-1-009	LRS2-B	sci	2.07	1.43	17.74	0.55			P4
0046	LFC Cal	11:02	106.5			HPF	cal							Yes
0047	LFC Cal	11:04	106.5			HPF	cal							Yes
virus0000024_01	parallel	11:14	360			VIRUS	sci							Yes
0048	LFC Cal	11:15	106.5			HPF	cal							Yes
lrs20000017_01	QID 1701	11:15	360	5.0	UT26-1-016	LRS2-R	sci	1.82	1.19	18.24	0.76			P4
0049	LFC Cal	11:17	106.5			HPF	cal							Yes
0050	LFC Cal	11:24	106.5			HPF	cal							Yes
lrs20000018_01	QID 1702	11:24	180	3.0	UT26-1-016	LRS2-B	sci	1.89	1.36	18.08	0.65			P4
lrs20000019_01	WD1327-083_056_E	11:34	120	7.0		LRS2	spec	1.83	1.41	17.35	0.35			Yes
lrs20000020_01	WD1327-083_056_E	11:59	120	2.0		LRS2	spec	1.61	1.40	16.44	0.33		sky brightness too high	No
lrs20000021_01	bias	12:18	0			LRS2	cal							Yes
virus0000025_01	bias	12:19	0			VIRUS	cal							Yes
virus0000026_01	Cd-A	12:23	15		ENG26-1-002	VIRUS	cal							Yes
virus0000027_01	Hg	12:25	15		ENG26-1-002	VIRUS	cal							Yes
0051	Dark	12:33	319.5			HPF	cal							Yes
0052	Quartz FCU	12:44	74.5			HPF	cal							Yes
0053	Quartz FCU	12:46	74.5			HPF	cal							Yes
0054	Quartz FCU	12:48	74.5			HPF	cal							Yes
0055	Quartz FCU	12:50	74.5			HPF	cal							Yes
0056	Quartz FCU	12:52	74.5			HPF	cal							Yes
0057	Quartz FCU	12:53	74.5			HPF	cal							Yes
0058	Quartz FCU	12:55	74.5			HPF	cal							Yes
0059	Alpha Bright Cal	12:57	85.2			HPF	cal							Yes
0060	Alpha Bright Cal	12:59	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	13:01	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	13:03	85.2			HPF	cal							Yes
0063	LFC FCU	13:06	106.5			HPF	cal							Yes
0064	LFC FCU	13:08	106.5			HPF	cal							Yes
0065	LFC FCU	13:11	106.5			HPF	cal							Yes
0066	LFC FCU	13:13	106.5			HPF	cal							Yes
0067	LFC FCU	13:15	106.5			HPF	cal							Yes
0068	LFC FCU	13:18	106.5			HPF	cal							Yes
0069	LFC Cal	13:21	106.5			HPF	cal							Yes
0070	LFC Cal	13:23	106.5			HPF	cal							Yes
0071	Etalon Cal	13:31	159.8			HPF	cal							Yes
0072	Etalon Cal	13:34	159.8			HPF	cal							Yes
0073	Etalon Cal	13:37	159.8			HPF	cal							Yes
0074	Etalon Cal	13:40	159.8			HPF	cal							Yes
0075	UNe Slave Cal	13:44	426			HPF	cal							Yes
0076	UNe Slave Cal	13:52	426			HPF	cal							Yes
0077	UNe Slave Cal	14:00	426			HPF	cal							Yes
0078	UNe Slave Cal	14:07	426			HPF	cal							Yes
0079	UNe Slave Cal	14:15	426			HPF	cal							Yes
0080	UNe Slave Cal	14:23	426			HPF	cal							Yes
0091	LFC Cal	22:25	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:30	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:31	20			VIRUS	cal							Yes
virus0009901_01	bias	22:32	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:33	20			LRS2	cal							Yes
virus0009902_01	dark	22:34	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:35	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:37	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:38	15			LRS2	cal							Yes
0092	Dark	22:41	319.5			HPF	cal							Yes
0093	Quartz FCU	22:47	74.5			HPF	cal							Yes
0094	Quartz FCU	22:49	74.5			HPF	cal							Yes
0095	Quartz FCU	22:51	74.5			HPF	cal							Yes
0096	Quartz FCU	22:52	74.5			HPF	cal							Yes
0097	Quartz FCU	22:54	74.5			HPF	cal							Yes
0098	Quartz FCU	22:56	74.5			HPF	cal							Yes
0099	Quartz FCU	22:58	74.5			HPF	cal							Yes
0100	Alpha Bright Cal	23:00	85.2			HPF	cal							Yes
0101	Alpha Bright Cal	23:02	85.2			HPF	cal							Yes
0102	Alpha Bright Cal	23:04	85.2			HPF	cal							Yes
0103	Alpha Bright Cal	23:06	85.2			HPF	cal							Yes
0104	LFC FCU	23:09	106.5			HPF	cal							Yes
0105	LFC FCU	23:11	106.5			HPF	cal							Yes
0106	LFC Cal	23:14	106.5			HPF	cal							Yes
0107	LFC Cal	23:16	106.5			HPF	cal							Yes
0108	Etalon Cal	23:19	159.8			HPF	cal							Yes
0109	UNe Slave Cal	23:22	426			HPF	cal							Yes
lrs20000015_01	flat_Qth_R	23:24	15			LRS2	cal							Yes
lrs20000015_02	flat_Qth_R	23:25	15			LRS2	cal							Yes
lrs20000015_03	flat_Qth_R	23:27	15			LRS2	cal							Yes
lrs20000015_04	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000015_05	flat_Qth_R	23:29	15			LRS2	cal							Yes
0110	UNe Slave Cal	23:30	426			HPF	cal							Yes
lrs20000016_01	flat_ldls_long_B	23:30	20			LRS2	cal							Yes
lrs20000016_02	flat_ldls_long_B	23:32	20			LRS2	cal							Yes
lrs20000016_03	flat_ldls_long_B	23:33	20			LRS2	cal							Yes
lrs20000017_01	Cd-A_B	23:34	29			LRS2	cal							Yes
lrs20000017_02	Cd-A_B	23:36	29			LRS2	cal							Yes
lrs20000017_03	Cd-A_B	23:37	29			LRS2	cal							Yes
0111	UNe Slave Cal	23:38	426			HPF	cal							Yes
lrs20000018_01	FeAr_R	23:39	15			LRS2	cal							Yes
lrs20000018_02	FeAr_R	23:40	15			LRS2	cal							Yes
lrs20000018_03	FeAr_R	23:41	15			LRS2	cal							Yes
lrs20000019_01	Hg_R	23:42	20			LRS2	cal							Yes
lrs20000019_02	Hg_R	23:44	20			LRS2	cal							Yes
lrs20000019_03	Hg_R	23:45	20			LRS2	cal							Yes
0112	UNe Slave Cal	23:46	426			HPF	cal							Yes
lrs20000020_01	Hg_B	23:46	15			LRS2	cal							Yes
lrs20000020_02	Hg_B	23:48	15			LRS2	cal							Yes
lrs20000020_03	Hg_B	23:49	15			LRS2	cal							Yes
0113	UNe Slave Cal	23:53	426			HPF	cal							Yes
virus0000035_01	flat_ldls_long	23:55	15			VIRUS	cal							Yes
virus0000035_02	flat_ldls_long	23:57	15			VIRUS	cal							Yes
virus0000035_03	flat_ldls_long	23:58	15			VIRUS	cal							Yes