HET Night Report Reader

Civil Date	Ephemerides
2026-08-11	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:49	02:37	03:09	10:53	11:24	12:14	12:13	-
Night Length	7:44		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Aiden Dillard	-	-

Overlaps
TO Overlap	RA Overlap
-	Tyler Ryburn

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
06:22	21.0	20.3	07:06	clouds	00:44
08:24	20.2	20.4	12:00	twilight	03:36
Total Time Open					4:20

Program	Night Priority	Science
03:09	Idle due to weather (heavy overcast)
10:00	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
06:27	07:06	0.44	0.66	-380	+915	21.0	20.4	20.3	182	18	First of Night
11:17	11:24	0.67	1.02	-450	+1667	18.9	20.2	20.4	281	16	Post-Observing

Problem Reports					no PRs

Ops Comments	none

TO Comments	High cloud cover made observing difficult. The sky cleared during the last couple of hours 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
lrs20000020_03	dark	00:04	360			LRS2	cal							Yes
virus0000024_03	dark	00:04	360			VIRUS	cal							Yes
0001	LFC Cal	01:58	106.5			HPF	cal							Yes
0002	LFC Cal	02:00	106.5			HPF	cal							Yes
0003	LFC Cal	02:02	106.5			HPF	cal							Yes
lrs20000001_01	dark	02:13	1800		ENG26-3-002	LRS2	cal							Yes
lrs20000001_02	dark	02:44	1800		ENG26-3-002	LRS2	cal							Yes
lrs20000001_03	dark	03:15	1800		ENG26-3-002	LRS2	cal							Yes
0004	LFC Cal	04:09	106.5			HPF	cal							Yes
0005	LFC Cal	04:12	106.5			HPF	cal							Yes
0006	LFC Cal	04:14	106.5			HPF	cal							Yes
virus0000001_01	bias	04:23	0			VIRUS	cal							Yes
0007	LFC Cal	05:26	106.5			HPF	cal							Yes
0008	LFC Cal	05:28	106.5			HPF	cal							Yes
0009	LFC Cal	05:31	106.5			HPF	cal							Yes
virus0006100_01	dark	06:12	10			VIRUS	cal							Yes
virus0000002_01	bias	06:14	0			VIRUS	cal							Yes
0010	LFC Cal	07:08	106.5			HPF	cal							Yes
0011	LFC Cal	07:10	106.5			HPF	cal							Yes
0012	LFC Cal	07:12	106.5			HPF	cal							Yes
lrs20000002_01	parallel	09:39	360			LRS2	sci							Yes
virus0000003_01	QID 271	09:39	360	3.0	PSU26-3-011	VIRUS	sci	1.72		21.90	0.57		clouds	No
0013	LFC Cal	09:40	106.5			HPF	cal							Yes
0014	LFC Cal	09:42	106.5			HPF	cal							Yes
lrs20000002_02	parallel	09:47	360			LRS2	sci							Yes
virus0000003_02	QID 271	09:47	360	2.0	PSU26-3-011	VIRUS	sci	1.52		21.90	0.38			No
lrs20000002_03	parallel	09:54	360			LRS2	sci							Yes
virus0000003_03	QID 271	09:54	360	1.0	PSU26-3-011	VIRUS	sci	1.57		21.90	0.51			No
0015	QID 796	10:10	617.7	9.7	UT26-3-001	HPF	sci	1.64		20.65	0.68	102		P4
virus0000004_01	parallel	10:10	1945.7			VIRUS	sci							Yes
0016	QID 796	10:21	617.7	1.7	UT26-3-001	HPF	sci	1.60		20.57	0.73	101		P4
0017	QID 796	10:32	617.7	0.7	UT26-3-001	HPF	sci	1.70		20.47	0.78	92		P4
0018	LFC Cal	10:50	106.5			HPF	cal							Yes
lrs20000003_01	QID 36	10:50	300	7.0	PSU26-3-002	LRS2-R	sci	1.89		20.78	0.77			P4
virus0000005_01	parallel	10:50	300			VIRUS	sci							Yes
0019	LFC Cal	10:53	106.5			HPF	cal							Yes
0020	LFC Cal	11:00	106.5			HPF	cal							Yes
lrs20000004_01	QID 890	11:00	180	5.0	UT26-3-009	LRS2-B	sci	2.18		21.32	0.67			P4
virus0000006_01	parallel	11:06	360			VIRUS	sci							Yes
lrs20000005_01	QID 891	11:06	360	3.0	UT26-3-009	LRS2-R	sci	1.81		20.58	0.79			P4
0021	LFC Cal	11:07	106.5			HPF	cal							Yes
0022	LFC Cal	11:09	106.5			HPF	cal							Yes
lrs20000006_01	BD+210607_066_E	11:17	15	4.8		LRS2	spec	1.64		19.96	0.89			Yes
lrs20000007_01	bias	11:18	0			LRS2	cal							Yes
virus0000007_01	bias	11:19	0			VIRUS	cal							Yes
virus0000008_01	Cd-A	11:23	15		ENG26-3-002	VIRUS	cal							Yes
virus0000009_01	Hg	11:25	15		ENG26-3-002	VIRUS	cal							Yes
virus0000010_01	skyflat	11:52	25			VIRUS	cal							Yes
virus0000011_01	skyflat	11:54	18			VIRUS	cal							Yes
virus0000012_01	skyflat	11:55	15			VIRUS	cal							Yes
0023	Dark	12:03	319.5			HPF	cal							Yes
0024	Quartz FCU	12:15	74.5			HPF	cal							Yes
0025	Quartz FCU	12:17	74.5			HPF	cal							Yes
0026	Quartz FCU	12:19	74.5			HPF	cal							Yes
0027	Quartz FCU	12:20	74.5			HPF	cal							Yes
0028	Quartz FCU	12:22	74.5			HPF	cal							Yes
0029	Quartz FCU	12:24	74.5			HPF	cal							Yes
0030	Quartz FCU	12:26	74.5			HPF	cal							Yes
0031	Alpha Bright Cal	12:28	85.2			HPF	cal							Yes
0032	Alpha Bright Cal	12:30	85.2			HPF	cal							Yes
0033	Alpha Bright Cal	12:32	85.2			HPF	cal							Yes
0034	Alpha Bright Cal	12:34	85.2			HPF	cal							Yes
0035	LFC FCU	12:37	106.5			HPF	cal							Yes
0036	LFC FCU	12:39	106.5			HPF	cal							Yes
0037	LFC FCU	12:41	106.5			HPF	cal							Yes
0038	LFC FCU	12:44	106.5			HPF	cal							Yes
0039	LFC FCU	12:46	106.5			HPF	cal							Yes
0040	LFC FCU	12:48	106.5			HPF	cal							Yes
0041	LFC Cal	12:51	106.5			HPF	cal							Yes
0042	LFC Cal	12:54	106.5			HPF	cal							Yes
0043	Etalon Cal	13:01	159.8			HPF	cal							Yes
0044	Etalon Cal	13:04	159.8			HPF	cal							Yes
0045	Etalon Cal	13:08	159.8			HPF	cal							Yes
0046	Etalon Cal	13:11	159.8			HPF	cal							Yes
0047	UNe Slave Cal	13:14	426			HPF	cal							Yes
0048	UNe Slave Cal	13:22	426			HPF	cal							Yes
0049	UNe Slave Cal	13:30	426			HPF	cal							Yes
0050	UNe Slave Cal	13:38	426			HPF	cal							Yes
0051	UNe Slave Cal	13:46	426			HPF	cal							Yes
0052	UNe Slave Cal	13:53	426			HPF	cal							Yes
0056	LFC Cal	21:46	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:53	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:54	20			VIRUS	cal							Yes
virus0009901_01	bias	21:55	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:56	20			LRS2	cal							Yes
virus0009902_01	dark	21:57	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:58	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:00	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:01	15			LRS2	cal							Yes
virus0009907_01	flat_Qth	22:04	20			VIRUS	cal							Yes
virus0009908_01	bias	22:05	0			VIRUS	cal							Yes
virus0009909_01	dark	22:06	15			VIRUS	cal							Yes
0057	Dark	22:14	319.5			HPF	cal							Yes
0058	Quartz FCU	22:21	74.5			HPF	cal							Yes
0059	Quartz FCU	22:23	74.5			HPF	cal							Yes
0060	Quartz FCU	22:24	74.5			HPF	cal							Yes
0061	Quartz FCU	22:26	74.5			HPF	cal							Yes
0062	Quartz FCU	22:28	74.5			HPF	cal							Yes
0063	Quartz FCU	22:30	74.5			HPF	cal							Yes
0064	Quartz FCU	22:31	74.5			HPF	cal							Yes
0065	Alpha Bright Cal	22:34	85.2			HPF	cal							Yes
0066	Alpha Bright Cal	22:36	85.2			HPF	cal							Yes
0067	Alpha Bright Cal	22:38	85.2			HPF	cal							Yes
0068	Alpha Bright Cal	22:40	85.2			HPF	cal							Yes
0069	LFC FCU	22:42	106.5			HPF	cal							Yes
0070	LFC FCU	22:45	106.5			HPF	cal							Yes
0071	LFC Cal	22:47	106.5			HPF	cal							Yes
0072	LFC Cal	22:50	106.5			HPF	cal							Yes
0073	Etalon Cal	22:52	159.8			HPF	cal							Yes
0074	UNe Slave Cal	22:56	426			HPF	cal							Yes
lrs20000013_01	flat_Qth_R	22:57	15			LRS2	cal							Yes
lrs20000013_02	flat_Qth_R	22:58	15			LRS2	cal							Yes
lrs20000013_03	flat_Qth_R	23:00	15			LRS2	cal							Yes
lrs20000013_04	flat_Qth_R	23:01	15			LRS2	cal							Yes
lrs20000013_05	flat_Qth_R	23:02	15			LRS2	cal							Yes
lrs20000014_01	flat_ldls_long_B	23:03	20			LRS2	cal							Yes
0075	UNe Slave Cal	23:04	426			HPF	cal							Yes
lrs20000014_02	flat_ldls_long_B	23:05	20			LRS2	cal							Yes
lrs20000014_03	flat_ldls_long_B	23:06	20			LRS2	cal							Yes
lrs20000015_01	Cd-A_B	23:07	29			LRS2	cal							Yes
lrs20000015_02	Cd-A_B	23:09	29			LRS2	cal							Yes
lrs20000015_03	Cd-A_B	23:10	29			LRS2	cal							Yes
0076	UNe Slave Cal	23:12	426			HPF	cal							Yes
lrs20000016_01	FeAr_R	23:12	15			LRS2	cal							Yes
lrs20000016_02	FeAr_R	23:13	15			LRS2	cal							Yes
lrs20000016_03	FeAr_R	23:14	15			LRS2	cal							Yes
lrs20000017_01	Hg_R	23:15	20			LRS2	cal							Yes
lrs20000017_02	Hg_R	23:17	20			LRS2	cal							Yes
lrs20000017_03	Hg_R	23:18	20			LRS2	cal							Yes
0077	UNe Slave Cal	23:19	426			HPF	cal							Yes
lrs20000018_01	Hg_B	23:19	15			LRS2	cal							Yes
lrs20000018_02	Hg_B	23:20	15			LRS2	cal							Yes
lrs20000018_03	Hg_B	23:22	15			LRS2	cal							Yes
0078	UNe Slave Cal	23:27	426			HPF	cal							Yes
virus0000020_01	flat_ldls_long	23:28	15			VIRUS	cal							Yes
virus0000020_02	flat_ldls_long	23:30	15			VIRUS	cal							Yes
virus0000020_03	flat_ldls_long	23:31	15			VIRUS	cal							Yes
virus0000021_01	Cd-A	23:32	15			VIRUS	cal							Yes
virus0000021_02	Cd-A	23:34	15			VIRUS	cal							Yes
0079	UNe Slave Cal	23:35	426			HPF	cal							Yes
virus0000021_03	Cd-A	23:35	15			VIRUS	cal							Yes
virus0000022_01	Hg	23:37	15			VIRUS	cal							Yes
virus0000022_02	Hg	23:38	15			VIRUS	cal							Yes
virus0000022_03	Hg	23:39	15			VIRUS	cal							Yes
lrs20000019_01	bias	23:41	0			LRS2	cal							Yes
virus0000023_01	bias	23:41	0			VIRUS	cal							Yes
lrs20000019_02	bias	23:41	0			LRS2	cal							Yes
virus0000023_02	bias	23:42	0			VIRUS	cal							Yes
lrs20000019_03	bias	23:42	0			LRS2	cal							Yes
virus0000023_03	bias	23:42	0			VIRUS	cal							Yes
lrs20000019_04	bias	23:43	0			LRS2	cal							Yes
virus0000023_04	bias	23:43	0			VIRUS	cal							Yes
lrs20000019_05	bias	23:44	0			LRS2	cal							Yes
virus0000023_05	bias	23:44	0			VIRUS	cal							Yes
lrs20000019_06	bias	23:45	0			LRS2	cal							Yes
virus0000023_06	bias	23:45	0			VIRUS	cal							Yes
lrs20000019_07	bias	23:46	0			LRS2	cal							Yes
virus0000023_07	bias	23:46	0			VIRUS	cal							Yes
lrs20000019_08	bias	23:47	0			LRS2	cal							Yes
virus0000023_08	bias	23:47	0			VIRUS	cal							Yes
lrs20000019_09	bias	23:47	0			LRS2	cal							Yes
virus0000023_09	bias	23:48	0			VIRUS	cal							Yes
lrs20000019_10	bias	23:48	0			LRS2	cal							Yes
virus0000023_10	bias	23:49	0			VIRUS	cal							Yes
lrs20000019_11	bias	23:49	0			LRS2	cal							Yes
virus0000023_11	bias	23:49	0			VIRUS	cal							Yes
lrs20000020_01	dark	23:50	360			LRS2	cal							Yes
virus0000024_01	dark	23:50	360			VIRUS	cal							Yes
lrs20000020_02	dark	23:57	360			LRS2	cal							Yes
virus0000024_02	dark	23:57	360			VIRUS	cal							Yes

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