HET Night Report Reader

Civil Date	Ephemerides
2026-08-27	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:32	02:18	02:48	11:06	11:36	12:23	-	-
Night Length	8:18		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Tyler Ryburn	Amy Westfall	-	-

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:22	24.0	23.6	11:22	twilight	10:00
Total Time Open					10:00

Program	Night Priority	Science
02:48	Science
03:40	Idle due to weather (bright sky, queue gap)
03:49	Science
05:51	Idle due to weather (bright sky, queue gap)
06:26	Science
07:33	Idle due to weather (bright sky, queue gap)
08:46	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:57	02:22	0.38	0.58	-377	-438	23.0	23.6	23.6	109	12	First of Night
05:52	06:26	0.38	0.59	-390	+1122	20.6	21.2	21.5	161	6	First of Night
11:16	11:21	0.77	1.18	-390	+1649	18.9	19.8	20.0	126	8	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6706	05:28-05:33	00:05	Guider 2 transparency jump from 0.3 to 0.7 on setup complete	relied on GC1
6713	11:22-11:22	00:00	Shutter became stuck at NEAR_CLOSED, fixed by moving and stopping dome, opening then closing.	Was unable to fix the shutter problem with the method outlined in the bug description. Shutter was left at NEAR_CLOSED at EON.

Ops Comments	none

TO Comments	Clear and calm night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000017_02	dark	00:06	360			LRS2	cal							Yes
virus0000020_02	dark	00:06	360			VIRUS	cal							Yes
lrs20000017_03	dark	00:13	360			LRS2	cal							Yes
virus0000020_03	dark	00:13	360			VIRUS	cal							Yes
0001	LFC Cal	00:33	106.5			HPF	cal							Yes
0002	LFC Cal	01:02	106.5			HPF	cal							Yes
0003	LFC Cal	01:04	106.5			HPF	cal							Yes
0004	LFC Cal	01:06	106.5			HPF	cal							Yes
0005	twilight	01:29	298.2			HPF	cal					343		Yes
lrs20000001_01	skyflat	01:36	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:38	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:39	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:40	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:41	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:42	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:45	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:46	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:48	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:49	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:50	26			VIRUS	cal							Yes
0006	LFC Cal	02:29	106.5			HPF	cal							Yes
0007	LFC Cal	02:31	106.5			HPF	cal							Yes
0008	LFC Cal	02:34	106.5			HPF	cal							Yes
0009	QID 1004	02:41	511.2	6.5	UT26-3-001	HPF	sci	1.50	0.93	19.37	0.88	141		Yes
virus0000006_01	parallel	02:41	1658.1			VIRUS	sci							Yes
0010	QID 1004	02:50	511.2	0.5	UT26-3-001	HPF	sci	1.43	0.92	19.49	0.96	162		Yes
0011	QID 1004	03:00	511.2	0.5	UT26-3-001	HPF	sci	1.50	1.05	19.77	0.98	168		Yes
0012	QID 794	03:13	511.2	5.5	UT26-3-001	HPF	sci	1.59	1.14	19.96	0.98	172		P4
virus0000007_01	parallel	03:13	1658.1			VIRUS	sci							Yes
0013	QID 794	03:23	511.2	0.5	UT26-3-001	HPF	sci	1.56	1.00	19.88	0.99	156		P4
0014	QID 794	03:32	511.2	0.5	UT26-3-001	HPF	sci	1.47	0.92	19.78	1.14	142		P4
0015	LFC Cal	03:53	106.5			HPF	cal							Yes
virus0000008_01	parallel	03:53	300			VIRUS	sci							Yes
lrs20000007_01	QID 30	03:53	300	4.0	PSU26-3-002	LRS2-R	sci	1.59	1.09	20.84	0.99			P4
0016	LFC Cal	03:55	106.5			HPF	cal							Yes
0017	QID 1005	04:04	617.7	6.7	UT26-3-001	HPF	sci	1.43	0.95	20.33	0.69	128		Yes
virus0000009_01	parallel	04:04	1945.7			VIRUS	sci							Yes
0018	QID 1005	04:16	617.7	0.7	UT26-3-001	HPF	sci	1.43	0.77	20.31	0.76	148		Yes
0019	QID 1005	04:27	617.7	0.7	UT26-3-001	HPF	sci	1.41	0.83	20.25	0.78	166		Yes
virus0000010_01	parallel	04:41	1945.7			VIRUS	sci							Yes
0020	QID 795	04:42	617.7	4.7	UT26-3-001	HPF	sci	1.36	0.79	20.11	0.78	160		P4
0021	QID 795	04:53	617.7	0.7	UT26-3-001	HPF	sci	1.34	0.83	19.94	0.82	145		P4
0022	QID 795	05:04	617.7	0.7	UT26-3-001	HPF	sci	1.39	0.82	19.67	0.87	126		P4
lrs20000008_01	WD2341+322_056_E	05:20	180	6.0		LRS2	spec	1.68	0.88	19.48	0.82			Yes
lrs20000009_01	WD2341+322_066_E	05:25	180	2.0		LRS2	spec	1.64	1.06	19.22	0.91			Yes
virus0000011_01	WD2341+322_052_E	05:33	60	5.0		VIRUS	spec	1.59	0.95	19.05	0.77			Yes
virus0000011_02	WD2341+322_052_E	05:36	60	2.0		VIRUS	spec	1.52	1.07	18.91	0.78			Yes
virus0000011_03	WD2341+322_052_E	05:38	60	1.0		VIRUS	spec	1.53	1.00	18.81	0.78			Yes
0023	HR8537_tell_std	05:46	330.2	6.5		HPF	telluric	1.59	0.83	18.94	0.83			Yes
0024	QID 961	06:33	969.1	6.8	UT26-3-012	HPF	sci	1.32	1.03	18.27	1.03	407		Yes
virus0000012_01	parallel	06:33	1000			VIRUS	sci							Yes
0025	LFC Cal	06:51	106.5			HPF	cal							Yes
0026	QID 958	06:55	969.1	5.8	UT26-3-012	HPF	sci	1.24	0.78	18.27	1.04	500		Yes
virus0000013_01	parallel	06:55	1000			VIRUS	sci							Yes
0027	LFC Cal	07:13	106.5			HPF	cal							Yes
virus0000014_01	parallel	07:16	1000			VIRUS	sci							Yes
0028	QID 962	07:17	969.1	5.8	UT26-3-012	HPF	sci	1.21	0.80	17.95	0.92	401		P4
0029	LFC Cal	07:35	106.5			HPF	cal							Yes
lrs20000010_01	FeAr_long_R	07:40	65		ENG26-3-002	LRS2	cal							Yes
lrs20000010_02	FeAr_long_R	07:42	65		ENG26-3-002	LRS2	cal							Yes
lrs20000010_03	FeAr_long_R	07:44	65		ENG26-3-002	LRS2	cal							Yes
lrs20000010_04	FeAr_long_R	07:47	65		ENG26-3-002	LRS2	cal							Yes
0030	QID 999	08:52	617.7	6.7	UT26-3-001	HPF	sci	1.52	1.03	18.29	0.72	115		Yes
virus0000015_01	parallel	08:52	1945.7			VIRUS	sci							Yes
0031	QID 999	09:04	617.7	0.7	UT26-3-001	HPF	sci	1.43	1.09	18.54	0.76	129		Yes
0032	QID 999	09:15	617.7	0.7	UT26-3-001	HPF	sci	1.41	1.07	18.59	0.79	119		Yes
0033	QID 768	09:31	713.6	6.1	UT26-3-001	HPF	sci	1.33	0.95	17.75	0.58	55	First exposure larger than requested sky brightness but others okay. Please review and reject data if not sufficient.	Yes
virus0000016_01	parallel	09:31	3020.2			VIRUS	sci							Yes
0034	QID 768	09:44	713.6	1.1	UT26-3-001	HPF	sci	1.34	1.02	18.29	0.67	68		Yes
0035	QID 768	09:56	713.6	0.1	UT26-3-001	HPF	sci	1.31	0.85	18.61	0.72	80		Yes
0036	QID 768	10:09	713.6	1.1	UT26-3-001	HPF	sci	1.32	0.86	18.76	0.75	76		Yes
0037	QID 928	10:28	276.9	7.4	UT26-3-012	HPF	sci	1.61	1.01	18.58	0.96	502		Yes
virus0000017_01	parallel	10:28	318.4			VIRUS	sci							Yes
0038	LFC Cal	10:34	106.5			HPF	cal							Yes
virus0000018_01	parallel	10:37	318.4			VIRUS	sci							Yes
0039	QID 931	10:38	276.9	4.4	UT26-3-012	HPF	sci	1.48	0.99	18.63	0.87	576		Yes
0040	LFC Cal	10:43	106.5			HPF	cal							Yes
virus0000019_01	parallel	10:47	318.4			VIRUS	sci							Yes
0041	QID 932	10:48	276.9	5.4	UT26-3-012	HPF	sci	1.51		18.69	0.86	559		P4
0042	LFC Cal	10:53	106.5			HPF	cal							Yes
virus0000020_01	parallel	10:58	914.8			VIRUS	sci							Yes
0043	QID 90	10:59	884	6.3	UT26-3-004	HPF	sci	1.39		18.29	0.71	229		Yes
lrs20000011_01	bias	11:16	0			LRS2	cal							Yes
virus0000021_01	bias	11:16	0			VIRUS	cal							Yes
virus0000022_01	Cd-A	11:20	15		ENG26-3-002	VIRUS	cal							Yes
virus0000023_01	Hg	11:22	15		ENG26-3-002	VIRUS	cal							Yes
0044	Dark	11:30	319.5			HPF	cal							Yes
0045	Quartz FCU	11:42	74.5			HPF	cal							Yes
0046	Quartz FCU	11:44	74.5			HPF	cal							Yes
0047	Quartz FCU	11:45	74.5			HPF	cal							Yes
0048	Quartz FCU	11:47	74.5			HPF	cal							Yes
0049	Quartz FCU	11:49	74.5			HPF	cal							Yes
0050	Quartz FCU	11:51	74.5			HPF	cal							Yes
0051	Quartz FCU	11:52	74.5			HPF	cal							Yes
0052	Alpha Bright Cal	11:55	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	11:57	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	11:59	85.2			HPF	cal							Yes
0055	Alpha Bright Cal	12:01	85.2			HPF	cal							Yes
0056	LFC FCU	12:03	106.5			HPF	cal							Yes
0057	LFC FCU	12:06	106.5			HPF	cal							Yes
0058	LFC FCU	12:08	106.5			HPF	cal							Yes
0059	LFC FCU	12:10	106.5			HPF	cal							Yes
0060	LFC FCU	12:12	106.5			HPF	cal							Yes
0061	LFC FCU	12:15	106.5			HPF	cal							Yes
0062	LFC Cal	12:18	106.5			HPF	cal							Yes
0063	LFC Cal	12:20	106.5			HPF	cal							Yes
0064	Etalon Cal	12:28	159.8			HPF	cal							Yes
0065	Etalon Cal	12:31	159.8			HPF	cal							Yes
0066	Etalon Cal	12:34	159.8			HPF	cal							Yes
0067	Etalon Cal	12:37	159.8			HPF	cal							Yes
0068	UNe Slave Cal	12:41	426			HPF	cal							Yes
0069	UNe Slave Cal	12:49	426			HPF	cal							Yes
0070	UNe Slave Cal	12:56	426			HPF	cal							Yes
0071	UNe Slave Cal	13:04	426			HPF	cal							Yes
0072	UNe Slave Cal	13:12	426			HPF	cal							Yes
0073	UNe Slave Cal	13:20	426			HPF	cal							Yes
0060	LFC Cal	21:55	106.5			HPF	cal							Yes
0061	LFC Cal	21:58	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:12	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:13	20			VIRUS	cal							Yes
virus0009901_01	bias	22:14	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:15	20			LRS2	cal							Yes
virus0009902_01	dark	22:16	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:17	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:19	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:20	15			LRS2	cal							Yes
0062	Dark	22:23	319.5			HPF	cal							Yes
0063	Quartz FCU	22:30	74.5			HPF	cal							Yes
0064	Quartz FCU	22:31	74.5			HPF	cal							Yes
0065	Quartz FCU	22:33	74.5			HPF	cal							Yes
0066	Quartz FCU	22:35	74.5			HPF	cal							Yes
0067	Quartz FCU	22:37	74.5			HPF	cal							Yes
0068	Quartz FCU	22:39	74.5			HPF	cal							Yes
0069	Quartz FCU	22:40	74.5			HPF	cal							Yes
0070	Alpha Bright Cal	22:43	85.2			HPF	cal							Yes
0071	Alpha Bright Cal	22:45	85.2			HPF	cal							Yes
0072	Alpha Bright Cal	22:47	85.2			HPF	cal							Yes
0073	Alpha Bright Cal	22:49	85.2			HPF	cal							Yes
0074	LFC FCU	22:51	106.5			HPF	cal							Yes
0075	LFC FCU	22:54	106.5			HPF	cal							Yes
0076	LFC Cal	22:57	106.5			HPF	cal							Yes
0077	LFC Cal	22:59	106.5			HPF	cal							Yes
0078	Etalon Cal	23:02	159.8			HPF	cal							Yes
0079	UNe Slave Cal	23:05	426			HPF	cal							Yes
lrs20000010_01	flat_Qth_R	23:06	15			LRS2	cal							Yes
lrs20000010_02	flat_Qth_R	23:07	15			LRS2	cal							Yes
lrs20000010_03	flat_Qth_R	23:09	15			LRS2	cal							Yes
lrs20000010_04	flat_Qth_R	23:10	15			LRS2	cal							Yes
lrs20000010_05	flat_Qth_R	23:11	15			LRS2	cal							Yes
lrs20000011_01	flat_ldls_long_B	23:12	20			LRS2	cal							Yes
0080	UNe Slave Cal	23:13	426			HPF	cal							Yes
lrs20000011_02	flat_ldls_long_B	23:14	20			LRS2	cal							Yes
lrs20000011_03	flat_ldls_long_B	23:15	20			LRS2	cal							Yes
lrs20000012_01	Cd-A_B	23:16	29			LRS2	cal							Yes
lrs20000012_02	Cd-A_B	23:18	29			LRS2	cal							Yes
lrs20000012_03	Cd-A_B	23:19	29			LRS2	cal							Yes
0081	UNe Slave Cal	23:21	426			HPF	cal							Yes
lrs20000013_01	FeAr_R	23:21	15			LRS2	cal							Yes
lrs20000013_02	FeAr_R	23:22	15			LRS2	cal							Yes
lrs20000013_03	FeAr_R	23:23	15			LRS2	cal							Yes
lrs20000014_01	Hg_R	23:24	20			LRS2	cal							Yes
lrs20000014_02	Hg_R	23:26	20			LRS2	cal							Yes
lrs20000014_03	Hg_R	23:27	20			LRS2	cal							Yes
lrs20000015_01	Hg_B	23:28	15			LRS2	cal							Yes
0082	UNe Slave Cal	23:29	426			HPF	cal							Yes
lrs20000015_02	Hg_B	23:29	15			LRS2	cal							Yes
lrs20000015_03	Hg_B	23:31	15			LRS2	cal							Yes
0083	UNe Slave Cal	23:37	426			HPF	cal							Yes
virus0000016_01	flat_ldls_long	23:37	15			VIRUS	cal							Yes
virus0000016_02	flat_ldls_long	23:39	15			VIRUS	cal							Yes
virus0000016_03	flat_ldls_long	23:40	15			VIRUS	cal							Yes
virus0000017_01	Cd-A	23:41	15			VIRUS	cal							Yes
virus0000017_02	Cd-A	23:43	15			VIRUS	cal							Yes
0084	UNe Slave Cal	23:44	426			HPF	cal							Yes
virus0000017_03	Cd-A	23:44	15			VIRUS	cal							Yes
virus0000018_01	Hg	23:46	15			VIRUS	cal							Yes
virus0000018_02	Hg	23:47	15			VIRUS	cal							Yes
virus0000018_03	Hg	23:48	15			VIRUS	cal							Yes
lrs20000016_01	bias	23:50	0			LRS2	cal							Yes
lrs20000016_02	bias	23:50	0			LRS2	cal							Yes
virus0000019_01	bias	23:50	0			VIRUS	cal							Yes
virus0000019_02	bias	23:51	0			VIRUS	cal							Yes
lrs20000016_03	bias	23:51	0			LRS2	cal							Yes
virus0000019_03	bias	23:52	0			VIRUS	cal							Yes
lrs20000016_04	bias	23:52	0			LRS2	cal							Yes
virus0000019_04	bias	23:52	0			VIRUS	cal							Yes
lrs20000016_05	bias	23:53	0			LRS2	cal							Yes
virus0000019_05	bias	23:53	0			VIRUS	cal							Yes
lrs20000016_06	bias	23:54	0			LRS2	cal							Yes
virus0000019_06	bias	23:54	0			VIRUS	cal							Yes
lrs20000016_07	bias	23:55	0			LRS2	cal							Yes
virus0000019_07	bias	23:55	0			VIRUS	cal							Yes
lrs20000016_08	bias	23:56	0			LRS2	cal							Yes
virus0000019_08	bias	23:56	0			VIRUS	cal							Yes
lrs20000016_09	bias	23:57	0			LRS2	cal							Yes
virus0000019_09	bias	23:57	0			VIRUS	cal							Yes
lrs20000016_10	bias	23:57	0			LRS2	cal							Yes
virus0000019_10	bias	23:58	0			VIRUS	cal							Yes
lrs20000016_11	bias	23:58	0			LRS2	cal							Yes
virus0000019_11	bias	23:59	0			VIRUS	cal							Yes
lrs20000017_01	dark	23:59	360			LRS2	cal							Yes
virus0000020_01	dark	23:59	360			VIRUS	cal							Yes

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