HET Night Report Reader

Civil Date	Ephemerides
2026-08-28	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:30	02:17	02:47	11:07	11:37	12:24	-	-
Night Length	8:20		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
00:48	25.3	22.7	01:06	engineering	00:18
01:24	24.6	22.7	07:26	queue hole	06:02
08:24	19.5	20.9	11:15	twilight	02:51
Total Time Open					9:11

Program	Night Priority	Science
02:47	Science
03:46	Idle due to weather (bright sky, queue gap)
04:07	Science
05:08	Idle due to weather (bright sky, queue gap)
06:23	Science
07:24	Idle due to weather (bright sky, queue gap)
08:26	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:55	02:14					23.9	23.9	23.4	80	14	First of Night
05:09	05:39	0.38	0.58	-380	+665	21.0	22.0	22.3	142	5	Stack/Re-stack
11:08	11:14	0.96	1.58	-385	+1276	18.6	19.3	19.4	202	12	Post-Observing

Problem Reports					no PRs

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
0001	twilight	01:27	298.2			HPF	cal					492		Yes
lrs20000001_01	skyflat	01:36	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:37	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:38	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:39	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:40	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:42	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:44	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:46	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:47	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:48	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:50	26			VIRUS	cal							Yes
0002	LFC Cal	02:19	106.5			HPF	cal							Yes
virus0000006_01	parallel	02:19	1500			VIRUS	sci							Yes
lrs20000007_01	QID 1010	02:19	1500	6.0	UT26-3-003	LRS2-R	sci	1.31	0.70	18.87	0.96			Yes
0003	LFC Cal	02:22	106.5			HPF	cal							Yes
0004	LFC Cal	02:24	106.5			HPF	cal							Yes
0005	LFC Cal	02:49	106.5			HPF	cal							Yes
virus0000007_01	parallel	02:49	1500			VIRUS	sci							Yes
lrs20000008_01	QID 1009	02:49	1500	5.0	UT26-3-003	LRS2-B	sci	1.31	0.85	18.80	0.90			Yes
0006	LFC Cal	02:51	106.5			HPF	cal							Yes
0007	LFC Cal	02:54	106.5			HPF	cal							Yes
virus0000008_01	1805292_052_W	03:20	60	6.0		VIRUS	spec	1.58	0.91	18.87	0.84			Yes
virus0000008_02	1805292_052_W	03:22	60	1.0		VIRUS	spec	1.53	0.83	18.85	0.86			Yes
virus0000008_03	1805292_052_W	03:24	60	1.0		VIRUS	spec	1.48	0.96	18.85	0.88			Yes
lrs20000009_01	1805292_056_W	03:29	180	4.0		LRS2	spec	1.56	0.93	18.87	0.87			Yes
lrs20000010_01	1805292_066_W	03:36	120	4.0		LRS2	spec	1.41	0.81	18.96	1.02			Yes
0008	HR8246_tell_std	03:44	117.2	6.0		HPF	telluric	1.45	0.81	18.81	0.83			Yes
virus0000009_01	parallel	04:11	1945.7			VIRUS	sci							Yes
0009	QID 1005	04:12	617.7	4.7	UT26-3-001	HPF	sci	1.40	1.06	18.20	0.76	148		Yes
0010	QID 1005	04:23	617.7	0.7	UT26-3-001	HPF	sci	1.38	1.03	18.26	0.78	168		Yes
0011	QID 1005	04:34	617.7	0.7	UT26-3-001	HPF	sci	1.38	1.06	18.27	0.80	166		Yes
virus0000010_01	parallel	04:51	1051			VIRUS	sci							Yes
0012	QID 791	04:52	308.9	7.9	UT26-3-001	HPF	sci	1.32	1.00	18.11	0.98	217		P4
0013	QID 791	04:57	308.9	-0.1	UT26-3-001	HPF	sci	1.24	0.96	18.08	1.01	208		P4
0014	QID 791	05:03	308.9	0.9	UT26-3-001	HPF	sci	1.21	0.92	17.97	1.10	199		P4
lrs20000011_01	FeAr_long_B	05:13	150		ENG26-3-002	LRS2	cal							Yes
lrs20000011_02	FeAr_long_B	05:17	150		ENG26-3-002	LRS2	cal							Yes
lrs20000011_03	FeAr_long_B	05:20	150		ENG26-3-002	LRS2	cal							Yes
lrs20000011_04	FeAr_long_B	05:24	150		ENG26-3-002	LRS2	cal							Yes
0015	LFC Cal	06:11	106.5			HPF	cal							Yes
virus0000011_01	parallel	06:29	1000			VIRUS	sci							Yes
0016	QID 962	06:30	969.1	6.8	UT26-3-012	HPF	sci	1.25	0.79	18.78	1.02	448		P4
0017	LFC Cal	06:48	106.5			HPF	cal							Yes
0018	QID 229	06:52	915.9	5.7	G26-3-002	HPF	sci	1.23	0.82	18.67	0.93	111		Yes
virus0000012_01	parallel	06:52	1914.8			VIRUS	sci							Yes
0019	QID 229	07:08	915.9	1.7	G26-3-002	HPF	sci	1.24	0.79	18.63	0.92	110		Yes
0020	LFC Cal	07:25	106.5			HPF	cal							Yes
virus0000013_01	parallel	08:31	3891.3			VIRUS	sci							Yes
0021	QID 1000	08:32	617.7	5.7	UT26-3-001	HPF	sci	1.59	0.97	18.26	0.59	94		Yes
0022	QID 1000	08:43	617.7	0.7	UT26-3-001	HPF	sci	1.62	1.00	18.53	0.68	105		Yes
0023	QID 1000	08:54	617.7	0.7	UT26-3-001	HPF	sci	1.64	0.90	18.72	0.74	116		Yes
0024	QID 1000	09:05	617.7	0.7	UT26-3-001	HPF	sci	1.55	0.97	18.81	0.77	118		Yes
0025	QID 1000	09:16	617.7	1.7	UT26-3-001	HPF	sci	1.55	0.97	18.87	0.80	103		Yes
0026	QID 1000	09:27	617.7	0.7	UT26-3-001	HPF	sci	1.60	0.77	18.84	0.87	89		Yes
virus0000014_01	parallel	09:57	1722			VIRUS	sci							Yes
0027	QID 769	09:58	713.6	6.1	UT26-3-001	HPF	sci	1.74	1.25	18.96	0.73	64	Lost fourth exposure due to error. Please review data of remaining exposures and reject if not usable.	Yes
0028	QID 769	10:11	713.6	0.1	UT26-3-001	HPF	sci	1.73	1.43	18.99	0.78	58		Yes
0029	QID 769	10:23	713.6	1.1	UT26-3-001	HPF	sci	1.74	1.42	18.90	0.84	54		Yes
virus0000015_01	parallel	10:40	318.4			VIRUS	sci							Yes
0030	QID 932	10:41	276.9	6.4	UT26-3-012	HPF	sci	1.95	1.12	18.91	0.88	436		P4
0031	LFC Cal	10:47	106.5			HPF	cal							Yes
0032	LFC Cal	10:55	106.5			HPF	cal							Yes
lrs20000012_01	QID 896	10:55	180	9.0	UT26-3-009	LRS2-B	sci	1.85		18.38	0.93			P4
virus0000016_01	parallel	11:01	360			VIRUS	sci							Yes
lrs20000013_01	QID 897	11:01	360	3.0	UT26-3-009	LRS2-R	sci	1.83		18.59	0.88			P4
0033	LFC Cal	11:02	106.5			HPF	cal							Yes
0034	LFC Cal	11:04	106.5			HPF	cal							Yes
lrs20000014_01	bias	11:09	0			LRS2	cal							Yes
virus0000017_01	bias	11:09	0			VIRUS	cal							Yes
virus0000018_01	Cd-A	11:13	15		ENG26-3-002	VIRUS	cal							Yes
virus0000019_01	Hg	11:15	15		ENG26-3-002	VIRUS	cal							Yes
0035	Dark	11:27	319.5			HPF	cal							Yes
0036	Quartz FCU	11:38	74.5			HPF	cal							Yes
0037	Quartz FCU	11:40	74.5			HPF	cal							Yes
0038	Quartz FCU	11:42	74.5			HPF	cal							Yes
0039	Quartz FCU	11:44	74.5			HPF	cal							Yes
0040	Quartz FCU	11:45	74.5			HPF	cal							Yes
0041	Quartz FCU	11:47	74.5			HPF	cal							Yes
0042	Quartz FCU	11:49	74.5			HPF	cal							Yes
0043	Alpha Bright Cal	11:51	85.2			HPF	cal							Yes
0044	Alpha Bright Cal	11:53	85.2			HPF	cal							Yes
0045	Alpha Bright Cal	11:55	85.2			HPF	cal							Yes
0046	Alpha Bright Cal	11:57	85.2			HPF	cal							Yes
0047	LFC FCU	12:00	106.5			HPF	cal							Yes
0048	LFC FCU	12:02	106.5			HPF	cal							Yes
0049	LFC FCU	12:05	106.5			HPF	cal							Yes
0050	LFC FCU	12:07	106.5			HPF	cal							Yes
0051	LFC FCU	12:09	106.5			HPF	cal							Yes
0052	LFC FCU	12:11	106.5			HPF	cal							Yes
0053	LFC Cal	12:14	106.5			HPF	cal							Yes
0054	LFC Cal	12:17	106.5			HPF	cal							Yes
0055	Etalon Cal	12:24	159.8			HPF	cal							Yes
0056	Etalon Cal	12:28	159.8			HPF	cal							Yes
0057	Etalon Cal	12:31	159.8			HPF	cal							Yes
0058	Etalon Cal	12:34	159.8			HPF	cal							Yes
0059	UNe Slave Cal	12:38	426			HPF	cal							Yes
0060	UNe Slave Cal	12:45	426			HPF	cal							Yes
0061	UNe Slave Cal	12:53	426			HPF	cal							Yes
0062	UNe Slave Cal	13:01	426			HPF	cal							Yes
0063	UNe Slave Cal	13:09	426			HPF	cal							Yes
0064	UNe Slave Cal	13:16	426			HPF	cal							Yes
0074	LFC Cal	21:46	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:55	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:55	20			VIRUS	cal							Yes
virus0009901_01	bias	21:57	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:58	20			LRS2	cal							Yes
virus0009902_01	dark	21:59	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:00	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:01	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:03	15			LRS2	cal							Yes
0075	Dark	22:07	319.5			HPF	cal							Yes
0076	Quartz FCU	22:13	74.5			HPF	cal							Yes
0077	Quartz FCU	22:15	74.5			HPF	cal							Yes
0078	Quartz FCU	22:17	74.5			HPF	cal							Yes
0079	Quartz FCU	22:19	74.5			HPF	cal							Yes
0080	Quartz FCU	22:20	74.5			HPF	cal							Yes
0081	Quartz FCU	22:22	74.5			HPF	cal							Yes
0082	Quartz FCU	22:24	74.5			HPF	cal							Yes
0083	Alpha Bright Cal	22:26	85.2			HPF	cal							Yes
0084	Alpha Bright Cal	22:28	85.2			HPF	cal							Yes
0085	Alpha Bright Cal	22:30	85.2			HPF	cal							Yes
0086	Alpha Bright Cal	22:32	85.2			HPF	cal							Yes
0087	LFC FCU	22:35	106.5			HPF	cal							Yes
0088	LFC FCU	22:37	106.5			HPF	cal							Yes
0089	LFC Cal	22:40	106.5			HPF	cal							Yes
0090	LFC Cal	22:42	106.5			HPF	cal							Yes
0091	Etalon Cal	22:45	159.8			HPF	cal							Yes
0092	UNe Slave Cal	22:48	426			HPF	cal							Yes
lrs20000012_01	flat_Qth_R	22:50	15			LRS2	cal							Yes
lrs20000012_02	flat_Qth_R	22:51	15			LRS2	cal							Yes
lrs20000012_03	flat_Qth_R	22:53	15			LRS2	cal							Yes
lrs20000012_04	flat_Qth_R	22:54	15			LRS2	cal							Yes
lrs20000012_05	flat_Qth_R	22:55	15			LRS2	cal							Yes
0093	UNe Slave Cal	22:56	426			HPF	cal							Yes
lrs20000013_01	flat_ldls_long_B	22:56	20			LRS2	cal							Yes
lrs20000013_02	flat_ldls_long_B	22:58	20			LRS2	cal							Yes
lrs20000013_03	flat_ldls_long_B	22:59	20			LRS2	cal							Yes
lrs20000014_01	Cd-A_B	23:00	29			LRS2	cal							Yes
lrs20000014_02	Cd-A_B	23:02	29			LRS2	cal							Yes
lrs20000014_03	Cd-A_B	23:03	29			LRS2	cal							Yes
0094	UNe Slave Cal	23:04	426			HPF	cal							Yes
lrs20000015_01	FeAr_R	23:05	15			LRS2	cal							Yes
lrs20000015_02	FeAr_R	23:06	15			LRS2	cal							Yes
lrs20000015_03	FeAr_R	23:07	15			LRS2	cal							Yes
lrs20000016_01	Hg_R	23:08	20			LRS2	cal							Yes
lrs20000016_02	Hg_R	23:10	20			LRS2	cal							Yes
lrs20000016_03	Hg_R	23:11	20			LRS2	cal							Yes
0095	UNe Slave Cal	23:12	426			HPF	cal							Yes
lrs20000017_01	Hg_B	23:12	15			LRS2	cal							Yes
lrs20000017_02	Hg_B	23:13	15			LRS2	cal							Yes
lrs20000017_03	Hg_B	23:15	15			LRS2	cal							Yes
0096	UNe Slave Cal	23:19	426			HPF	cal							Yes
virus0000024_01	flat_ldls_long	23:21	15			VIRUS	cal							Yes
virus0000024_02	flat_ldls_long	23:23	15			VIRUS	cal							Yes
virus0000024_03	flat_ldls_long	23:24	15			VIRUS	cal							Yes
virus0000025_01	Cd-A	23:26	15			VIRUS	cal							Yes
0097	UNe Slave Cal	23:27	426			HPF	cal							Yes
virus0000025_02	Cd-A	23:27	15			VIRUS	cal							Yes
virus0000025_03	Cd-A	23:28	15			VIRUS	cal							Yes
virus0000026_01	Hg	23:30	15			VIRUS	cal							Yes
virus0000026_02	Hg	23:31	15			VIRUS	cal							Yes
virus0000026_03	Hg	23:33	15			VIRUS	cal							Yes
lrs20000018_01	bias	23:34	0			LRS2	cal							Yes
virus0000027_01	bias	23:34	0			VIRUS	cal							Yes
lrs20000018_02	bias	23:35	0			LRS2	cal							Yes
virus0000027_02	bias	23:35	0			VIRUS	cal							Yes
lrs20000018_03	bias	23:35	0			LRS2	cal							Yes
virus0000027_03	bias	23:36	0			VIRUS	cal							Yes
lrs20000018_04	bias	23:36	0			LRS2	cal							Yes
virus0000027_04	bias	23:37	0			VIRUS	cal							Yes
lrs20000018_05	bias	23:37	0			LRS2	cal							Yes
virus0000027_05	bias	23:37	0			VIRUS	cal							Yes
lrs20000018_06	bias	23:38	0			LRS2	cal							Yes
virus0000027_06	bias	23:38	0			VIRUS	cal							Yes
lrs20000018_07	bias	23:39	0			LRS2	cal							Yes
virus0000027_07	bias	23:39	0			VIRUS	cal							Yes
lrs20000018_08	bias	23:40	0			LRS2	cal							Yes
virus0000027_08	bias	23:40	0			VIRUS	cal							Yes
lrs20000018_09	bias	23:41	0			LRS2	cal							Yes
virus0000027_09	bias	23:41	0			VIRUS	cal							Yes
lrs20000018_10	bias	23:42	0			LRS2	cal							Yes
virus0000027_10	bias	23:42	0			VIRUS	cal							Yes
lrs20000018_11	bias	23:42	0			LRS2	cal							Yes
virus0000027_11	bias	23:43	0			VIRUS	cal							Yes
lrs20000019_01	dark	23:43	360			LRS2	cal							Yes
virus0000028_01	dark	23:44	360			VIRUS	cal							Yes
lrs20000019_02	dark	23:50	360			LRS2	cal							Yes
virus0000028_02	dark	23:50	360			VIRUS	cal							Yes
lrs20000019_03	dark	23:57	360			LRS2	cal							Yes
virus0000028_03	dark	23:57	360			VIRUS	cal							Yes

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