HET Night Report Reader

Civil Date	Ephemerides
2026-04-25	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:38	02:25	02:57	10:50	11:21	12:10	-	09:24
Night Length	7:53		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Tyler Ryburn	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
01:37	20.6	18.3	11:27	twilight	09:50
Total Time Open					9:50

Program	Night Priority	Science
02:57	Engineering
03:12	Science
03:33	Idle due to weather (clouds)
05:25	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	02:35	0.65	1.25	-260	-924	20.2	19.0	18.9	261	8	First of Night
11:15	11:21	0.82	1.33	-90	+55	16.3	16.9	16.9	280	10	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6554	05:29-05:31	00:02	HPF not updating images
6670	03:00-09:00	06:00	HObS sometimes missing P1 with syndate of today

TO Comments	Fighting clouds most of the night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	Quartz FCU	00:00	74.5			HPF	cal							Yes
0002	Alpha Bright Cal	00:02	85.2			HPF	cal							Yes
0003	Alpha Bright Cal	00:04	85.2			HPF	cal							Yes
0004	Alpha Bright Cal	00:06	85.2			HPF	cal							Yes
0005	Alpha Bright Cal	00:08	85.2			HPF	cal							Yes
0006	LFC FCU	00:11	106.5			HPF	cal							Yes
0007	LFC FCU	00:13	106.5			HPF	cal							Yes
0008	LFC Cal	00:16	106.5			HPF	cal							Yes
0009	LFC Cal	00:18	106.5			HPF	cal							Yes
0010	Etalon Cal	00:21	159.8			HPF	cal							Yes
0011	UNe Slave Cal	00:24	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:26	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:27	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:29	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:30	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:31	15			LRS2	cal							Yes
0012	UNe Slave Cal	00:32	426			HPF	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:32	20			LRS2	cal							Yes
lrs20000002_02	flat_ldls_long_B	00:34	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	00:35	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	00:36	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	00:38	29			LRS2	cal							Yes
lrs20000003_03	Cd-A_B	00:39	29			LRS2	cal							Yes
0013	UNe Slave Cal	00:40	426			HPF	cal							Yes
lrs20000004_01	FeAr_R	00:41	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	00:42	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	00:43	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	00:44	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	00:46	20			LRS2	cal							Yes
lrs20000005_03	Hg_R	00:47	20			LRS2	cal							Yes
0014	UNe Slave Cal	00:48	426			HPF	cal							Yes
lrs20000006_01	Hg_B	00:48	15			LRS2	cal							Yes
lrs20000006_02	Hg_B	00:50	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	00:51	15			LRS2	cal							Yes
0015	UNe Slave Cal	00:56	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:57	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:59	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	01:00	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	01:02	15			VIRUS	cal							Yes
0016	UNe Slave Cal	01:03	426			HPF	cal							Yes
virus0000002_02	Cd-A	01:03	15			VIRUS	cal							Yes
virus0000002_03	Cd-A	01:04	15			VIRUS	cal							Yes
virus0000003_01	Hg	01:06	15			VIRUS	cal							Yes
virus0000003_02	Hg	01:07	15			VIRUS	cal							Yes
virus0000003_03	Hg	01:09	15			VIRUS	cal							Yes
lrs20000007_01	dark	01:10	360			LRS2	cal							Yes
virus0000004_01	dark	01:10	360			VIRUS	cal							Yes
lrs20000007_02	dark	01:17	360			LRS2	cal							Yes
virus0000004_02	dark	01:17	360			VIRUS	cal							Yes
lrs20000007_03	dark	01:23	360			LRS2	cal							Yes
virus0000004_03	dark	01:24	360			VIRUS	cal							Yes
lrs20000008_01	skyflat	01:42	7			LRS2	cal							Yes
lrs20000009_01	skyflat	01:44	10			LRS2	cal							Yes
lrs20000010_01	skyflat	01:45	13			LRS2	cal							Yes
lrs20000011_01	skyflat	01:46	16			LRS2	cal							Yes
lrs20000012_01	skyflat	01:47	22			LRS2	cal							Yes
lrs20000013_01	skyflat	01:48	30			LRS2	cal							Yes
virus0000005_01	skyflat	01:52	7			VIRUS	cal							Yes
virus0000006_01	skyflat	01:53	10			VIRUS	cal							Yes
virus0000007_01	skyflat	01:54	14			VIRUS	cal							Yes
virus0000008_01	skyflat	01:56	18			VIRUS	cal							Yes
virus0000009_01	skyflat	01:57	26			VIRUS	cal							Yes
lrs20000014_01	bias	02:05	0			LRS2	cal							Yes
virus0000010_01	bias	02:05	0			VIRUS	cal							Yes
lrs20000014_02	bias	02:06	0			LRS2	cal							Yes
lrs20000014_03	bias	02:06	0			LRS2	cal							Yes
virus0000010_02	bias	02:06	0			VIRUS	cal							Yes
virus0000010_03	bias	02:07	0			VIRUS	cal							Yes
lrs20000014_04	bias	02:07	0			LRS2	cal							Yes
virus0000010_04	bias	02:07	0			VIRUS	cal							Yes
lrs20000014_05	bias	02:08	0			LRS2	cal							Yes
virus0000010_05	bias	02:08	0			VIRUS	cal							Yes
lrs20000014_06	bias	02:09	0			LRS2	cal							Yes
virus0000010_06	bias	02:09	0			VIRUS	cal							Yes
lrs20000014_07	bias	02:10	0			LRS2	cal							Yes
virus0000010_07	bias	02:10	0			VIRUS	cal							Yes
lrs20000014_08	bias	02:11	0			LRS2	cal							Yes
virus0000010_08	bias	02:11	0			VIRUS	cal							Yes
lrs20000014_09	bias	02:12	0			LRS2	cal							Yes
virus0000010_09	bias	02:12	0			VIRUS	cal							Yes
lrs20000014_10	bias	02:12	0			LRS2	cal							Yes
virus0000010_10	bias	02:13	0			VIRUS	cal							Yes
lrs20000014_11	bias	02:13	0			LRS2	cal							Yes
virus0000010_11	bias	02:14	0			VIRUS	cal							Yes
0017	QID 93	02:42	969.1	6.8	UT26-2-019	HPF	sci	1.32		17.96	0.48	362	Overcast clouds.	No
virus0000011_01	parallel	02:42	1023			VIRUS	sci							Yes
0018	LFC Cal	03:00	106.5			HPF	cal							Yes
0019	LFC Cal	03:09	106.5			HPF	cal							Yes
lrs20000015_01	hobs_testing_056_W	03:09	180	10.0	ENG26-2-000	LRS2-B	eng	1.16		17.36	0.69		transparency likely poorer. HObS did not run since could not get both g and r mag simultaneously; ran manually. Guide stars not visible on blind setup, only on direct setup. Guiders etiher didnt have correct offsets or finder incorrect.	P4
0020	QID 89	03:19	841.4	7.0	UT26-2-019	HPF	sci	1.30		18.46	0.71	514		No
virus0000012_01	parallel	03:19	891			VIRUS	sci							Yes
0021	LFC Cal	03:35	106.5			HPF	cal							Yes
virus0000013_01	parallel	03:48	6240			VIRUS	sci							Yes
0022	QID 784	03:49	308.9	15.9	UT26-2-005	HPF	sci	1.34		18.12	0.33	121	Overcast clouds.	No
0023	QID 784	03:55	308.9	0.9	UT26-2-005	HPF	sci	1.50		17.65	0.17	50		No
0024	QID 784	04:00	308.9	-0.1	UT26-2-005	HPF	sci	1.50		17.85	0.23	149		No
0025	QID 784	04:06	308.9	0.9	UT26-2-005	HPF	sci	1.35		17.82	0.23	109		No
0026	QID 784	04:12	308.9	0.9	UT26-2-005	HPF	sci	1.34		18.34	0.46	203		No
0027	QID 784	04:18	308.9	0.9	UT26-2-005	HPF	sci	1.26		17.80	0.21	118		No
0028	QID 784	04:23	308.9	0.9	UT26-2-005	HPF	sci	1.26		17.81	0.24	162		No
0029	QID 784	04:29	308.9	-0.1	UT26-2-005	HPF	sci	1.35		17.81	0.25	178		No
0030	QID 784	04:35	308.9	0.9	UT26-2-005	HPF	sci	1.29		17.56	0.15	88		No
0031	QID 784	04:41	308.9	0.9	UT26-2-005	HPF	sci	1.42		17.84	0.22	130		No
0032	QID 784	04:46	308.9	0.9	UT26-2-005	HPF	sci	1.41		18.08	0.33	141		No
0033	QID 784	04:52	308.9	-0.1	UT26-2-005	HPF	sci	1.44		18.14	0.37	168		No
0034	QID 784	04:58	308.9	0.9	UT26-2-005	HPF	sci	1.46		18.45	0.54	148		No
0035	HR5162_tell_std	05:35	330.2	9.5		HPF	telluric	1.44		18.19			PAS had to be restarted so no transparency measurement; likely poor	Yes
0036	HR5162_tell_std	05:50	330.2	9.5		HPF	telluric	1.59		18.94	0.67			Yes
virus0000014_01	parallel	06:02	2578			VIRUS	sci							Yes
0037	QID 875	06:03	809.4	6.5	UT26-2-009	HPF	sci	1.41		18.80	0.64	20		Yes
0038	QID 875	06:17	809.4	1.5	UT26-2-009	HPF	sci	1.47		19.41	0.88	67		Yes
0039	QID 875	06:31	809.4	0.5	UT26-2-009	HPF	sci	1.36		19.73	0.96	84		Yes
virus0000015_01	parallel	06:51	2047			VIRUS	sci							Yes
0040	QID 677	06:52	969.1	6.8	UT26-2-007	HPF	sci	1.40		19.24	0.95	31		Yes
0041	QID 677	07:09	969.1	0.8	UT26-2-007	HPF	sci	1.40		18.75	0.92	26		Yes
0042	QID 79	07:32	42.6	7.3	UT26-2-019	HPF	sci	1.53		19.56	0.83	649		P4
0043	LFC Cal	07:34	106.5			HPF	cal							Yes
0044	QID 680	07:51	969.1	4.8	UT26-2-007	HPF	sci	1.51		19.28	0.74	26		Yes
virus0000016_01	parallel	07:51	2047			VIRUS	sci							Yes
0045	QID 680	08:08	969.1	1.8	UT26-2-007	HPF	sci	1.50	0.87	19.49	0.66	21		Yes
0046	QID 803	08:33	969.1	7.8	PSU26-2-015	HPF	sci	1.66	1.19	20.16	0.85	129		Yes
virus0000017_01	parallel	08:33	2047			VIRUS	sci							Yes
0047	QID 803	08:50	969.1	0.8	PSU26-2-015	HPF	sci	1.65	1.00	20.31	0.77	115		Yes
0048	LFC Cal	09:08	106.5			HPF	cal							Yes
0049	LFC Cal	09:13	106.5			HPF	cal							Yes
virus0000018_01	parallel	09:13	300			VIRUS	sci							Yes
lrs20000016_01	QID 585	09:13	300	7.0	PSU26-2-001	LRS2-R	sci	1.66	0.91	20.58	1.14			P4
0050	LFC Cal	09:16	106.5			HPF	cal							Yes
0051	QID 785	09:23	308.9	4.9	UT26-2-005	HPF	sci	1.50	0.92	20.05	0.54	142		Yes
virus0000019_01	parallel	09:23	4345			VIRUS	sci							Yes
0052	QID 785	09:29	308.9	0.9	UT26-2-005	HPF	sci	1.55		20.09	0.51	127		Yes
0053	QID 785	09:35	308.9	0.9	UT26-2-005	HPF	sci	1.58	1.08	20.25	0.78	177		Yes
0054	QID 785	09:41	308.9	0.9	UT26-2-005	HPF	sci	1.58	0.99	20.35	0.91	215		Yes
0055	QID 785	09:46	308.9	0.9	UT26-2-005	HPF	sci	1.62	0.99	20.28	0.82	191		Yes
0056	QID 785	09:52	308.9	-0.1	UT26-2-005	HPF	sci	1.62		20.13	0.55	154		Yes
0057	QID 785	09:58	308.9	0.9	UT26-2-005	HPF	sci	1.74		20.13	0.56	138		Yes
0058	QID 785	10:04	308.9	0.9	UT26-2-005	HPF	sci	1.71		20.21	0.74	175		Yes
0059	QID 785	10:10	308.9	0.9	UT26-2-005	HPF	sci	1.69		20.16	0.73	174		Yes
0060	QID 785	10:15	308.9	-0.1	UT26-2-005	HPF	sci	1.67		20.09	0.58	142		Yes
0061	QID 785	10:21	308.9	0.9	UT26-2-005	HPF	sci	1.66		20.11	0.73	158		Yes
0062	QID 785	10:27	308.9	0.9	UT26-2-005	HPF	sci	1.72		20.08	0.66	135		Yes
lrs20000017_01	1808347_056_E	10:41	120	9.0		LRS2	spec	2.44		21.74	0.89			Yes
lrs20000018_01	1808347_066_E	10:46	120	3.0		LRS2	spec	2.31		20.69	0.87			Yes
0063	LFC Cal	10:52	106.5			HPF	cal							Yes
virus0000020_01	parallel	10:52	300			VIRUS	sci							Yes
lrs20000019_01	QID 820	10:52	300	4.0	PSU26-2-004	LRS2-B	sci	2.04		21.55	0.77			Yes
0064	LFC Cal	10:55	106.5			HPF	cal							Yes
virus0000020_02	parallel	10:58	300			VIRUS	sci							Yes
lrs20000019_02	QID 820	10:58	300	1.0	PSU26-2-004	LRS2-B	sci	1.98		21.30	0.55			Yes
virus0000020_03	parallel	11:05	300			VIRUS	sci							Yes
lrs20000019_03	QID 820	11:05	300	2.0	PSU26-2-004	LRS2-B	sci	1.90		20.86	0.42		cloud rolled in	Yes
lrs20000020_01	bias	11:17	0			LRS2	cal							Yes
virus0000021_01	bias	11:18	0			VIRUS	cal							Yes
virus0000022_01	Cd-A	11:22	15		ENG26-2-002	VIRUS	cal							Yes
virus0000023_01	Hg	11:24	15		ENG26-2-002	VIRUS	cal							Yes
0065	Dark	11:31	319.5			HPF	cal							Yes
0066	Quartz FCU	11:42	74.5			HPF	cal							Yes
0067	Quartz FCU	11:44	74.5			HPF	cal							Yes
0068	Quartz FCU	11:46	74.5			HPF	cal							Yes
0069	Quartz FCU	11:48	74.5			HPF	cal							Yes
0070	Quartz FCU	11:49	74.5			HPF	cal							Yes
0071	Quartz FCU	11:51	74.5			HPF	cal							Yes
0072	Quartz FCU	11:53	74.5			HPF	cal							Yes
0073	Alpha Bright Cal	11:55	85.2			HPF	cal							Yes
0074	Alpha Bright Cal	11:57	85.2			HPF	cal							Yes
0075	Alpha Bright Cal	11:59	85.2			HPF	cal							Yes
0076	Alpha Bright Cal	12:01	85.2			HPF	cal							Yes
0077	LFC FCU	12:04	106.5			HPF	cal							Yes
0078	LFC FCU	12:06	106.5			HPF	cal							Yes
0079	LFC FCU	12:09	106.5			HPF	cal							Yes
0080	LFC FCU	12:11	106.5			HPF	cal							Yes
0081	LFC FCU	12:13	106.5			HPF	cal							Yes
0082	LFC FCU	12:15	106.5			HPF	cal							Yes
0083	LFC Cal	12:19	106.5			HPF	cal							Yes
0084	LFC Cal	12:21	106.5			HPF	cal							Yes
0085	Etalon Cal	12:28	159.8			HPF	cal							Yes
0086	Etalon Cal	12:32	159.8			HPF	cal							Yes
0087	Etalon Cal	12:35	159.8			HPF	cal							Yes
0088	Etalon Cal	12:38	159.8			HPF	cal							Yes
0089	UNe Slave Cal	12:42	426			HPF	cal							Yes
0090	UNe Slave Cal	12:50	426			HPF	cal							Yes
0091	UNe Slave Cal	12:57	426			HPF	cal							Yes
0092	UNe Slave Cal	13:05	426			HPF	cal							Yes
0093	UNe Slave Cal	13:13	426			HPF	cal							Yes
0094	UNe Slave Cal	13:21	426			HPF	cal							Yes
0075	LFC Cal	23:20	106.5			HPF	cal							Yes
lrs20009900_01	bias	23:30	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	23:31	20			VIRUS	cal							Yes
virus0009901_01	bias	23:32	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:33	20			LRS2	cal							Yes
virus0009902_01	dark	23:34	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:35	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:37	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:38	15			LRS2	cal							Yes
0076	Dark	23:43	319.5			HPF	cal							Yes
0077	Quartz FCU	23:49	74.5			HPF	cal							Yes
0078	Quartz FCU	23:51	74.5			HPF	cal							Yes
0079	Quartz FCU	23:53	74.5			HPF	cal							Yes
0080	Quartz FCU	23:55	74.5			HPF	cal							Yes
0081	Quartz FCU	23:56	74.5			HPF	cal							Yes
0082	Quartz FCU	23:58	74.5			HPF	cal							Yes