HET Night Report Reader

Civil Date	Ephemerides
2026-06-10	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:06	02:59	03:35	10:15	10:51	11:45	08:43	-
Night Length	6:40		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Cassie Crowe	-	-

Overlaps
TO Overlap	RA Overlap
Amy Westfall	-

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
03:41	23.7	21.3	11:38	twilight	07:57
Total Time Open					7:57

Program	Night Priority	Science
03:35	Idle due to weather (clouds)
04:57	Science
05:45	Idle due to weather (clouds)
07:24	Science
07:34	Idle due to weather (clouds)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
03:41	04:23	0.67	1.01	-430	+61	23.9	22.7	22.1	202	15	First of Night
↪ Comments			Measured at 1/125 due to dome seeing.
10:49	10:52	0.65	1.02	-300	+587	21.0	21.5	21.3	208	13	Post-Observing

Problem Reports					no PRs

Ops Comments	none

TO Comments	Fighting clouds for 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
lrs20000024_03	dark	00:02	360			LRS2	cal							Yes
virus0000023_03	dark	00:03	360			VIRUS	cal							Yes
0001	LFC Cal	03:45	106.5			HPF	cal							Yes
0002	LFC Cal	03:47	106.5			HPF	cal							Yes
0003	LFC Cal	03:49	106.5			HPF	cal							Yes
0004	LFC Cal	05:02	106.5			HPF	cal							Yes
virus0000001_01	parallel	05:02	300			VIRUS	sci							Yes
lrs20000001_01	QID 613	05:02	300	5.0	PSU26-2-001	LRS2-R	sci	1.63		20.81	0.74			P4
0005	LFC Cal	05:04	106.5			HPF	cal							Yes
0006	LFC Cal	05:13	106.5			HPF	cal							Yes
virus0000002_01	parallel	05:13	300			VIRUS	sci							Yes
lrs20000002_01	QID 591	05:13	300	6.0	PSU26-2-001	LRS2-R	sci	1.75		20.84	0.61			P4
0007	LFC Cal	05:16	106.5			HPF	cal							Yes
virus0000003_01	parallel	05:24	1200			VIRUS	sci							Yes
0008	LFC Cal	05:25	106.5			HPF	cal							Yes
lrs20000003_01	QID 953	05:25	1200	7.0	M26-2-011	LRS2-B	sci	1.85		21.77	0.50			Yes
0009	LFC Cal	05:27	106.5			HPF	cal							Yes
0010	LFC Cal	05:29	106.5			HPF	cal							Yes
0011	LFC Cal	05:46	106.5			HPF	cal							Yes
virus0000004_01	parallel	05:49	1914.8			VIRUS	sci							Yes
0012	QID 472	05:50	915.9	4.7	G26-2-002	HPF	sci	1.63		19.21	0.22	62	clouds	No
0013	LFC Cal	06:07	106.5			HPF	cal							Yes
0014	LFC Cal	07:22	106.5			HPF	cal							Yes
0015	LFC Cal	07:24	106.5			HPF	cal							Yes
0016	LFC Cal	07:26	106.5			HPF	cal							Yes
lrs20000004_01	HD180609_056_E	07:29	90	4.5		LRS2	spec	1.67		21.63	0.37			Yes
lrs20000005_01	HD180609_066_E	07:33	90	2.5		LRS2	spec	1.74		20.40	0.23			Yes
0017	LFC Cal	07:41	106.5			HPF	cal							Yes
virus0000005_01	parallel	07:41	900			VIRUS	sci							Yes
lrs20000006_01	QID 639	07:41	900	7.0	PSU26-2-004	LRS2-B	sci	1.71		21.55	0.17		clouds	No
0018	LFC Cal	07:44	106.5			HPF	cal							Yes
0019	LFC Cal	07:46	106.5			HPF	cal							Yes
0020	LFC Cal	09:10	106.5			HPF	cal							Yes
0021	LFC Cal	09:12	106.5			HPF	cal							Yes
0022	LFC Cal	09:15	106.5			HPF	cal							Yes
lrs20000007_01	bias	10:47	0			LRS2	cal							Yes
virus0000006_01	bias	10:47	0			VIRUS	cal							Yes
virus0000007_01	Cd-A	10:52	15		ENG26-2-002	VIRUS	cal							Yes
virus0000008_01	Hg	10:53	15		ENG26-2-002	VIRUS	cal							Yes
virus0000009_01	skyflat	11:23	25			VIRUS	cal							Yes
virus0000010_01	skyflat	11:24	18			VIRUS	cal							Yes
virus0000011_01	skyflat	11:26	15			VIRUS	cal							Yes
0023	Dark	11:39	319.5			HPF	cal							Yes
0024	Quartz FCU	11:50	74.5			HPF	cal							Yes
0025	Quartz FCU	11:52	74.5			HPF	cal							Yes
0026	Quartz FCU	11:54	74.5			HPF	cal							Yes
0027	Quartz FCU	11:55	74.5			HPF	cal							Yes
0028	Quartz FCU	11:57	74.5			HPF	cal							Yes
0029	Quartz FCU	11:59	74.5			HPF	cal							Yes
0030	Quartz FCU	12:01	74.5			HPF	cal							Yes
0031	Alpha Bright Cal	12:03	85.2			HPF	cal							Yes
0032	Alpha Bright Cal	12:05	85.2			HPF	cal							Yes
0033	Alpha Bright Cal	12:07	85.2			HPF	cal							Yes
0034	Alpha Bright Cal	12:09	85.2			HPF	cal							Yes
0035	LFC FCU	12:12	106.5			HPF	cal							Yes
0036	LFC FCU	12:14	106.5			HPF	cal							Yes
0037	LFC FCU	12:16	106.5			HPF	cal							Yes
0038	LFC FCU	12:19	106.5			HPF	cal							Yes
0039	LFC FCU	12:21	106.5			HPF	cal							Yes
0040	LFC FCU	12:23	106.5			HPF	cal							Yes
0041	LFC Cal	12:26	106.5			HPF	cal							Yes
0042	LFC Cal	12:29	106.5			HPF	cal							Yes
0043	Etalon Cal	12:36	159.8			HPF	cal							Yes
0044	Etalon Cal	12:39	159.8			HPF	cal							Yes
0045	Etalon Cal	12:43	159.8			HPF	cal							Yes
0046	Etalon Cal	12:46	159.8			HPF	cal							Yes
0047	UNe Slave Cal	12:50	426			HPF	cal							Yes
0048	UNe Slave Cal	12:57	426			HPF	cal							Yes
0049	UNe Slave Cal	13:05	426			HPF	cal							Yes
0050	UNe Slave Cal	13:13	426			HPF	cal							Yes
0051	UNe Slave Cal	13:21	426			HPF	cal							Yes
0052	UNe Slave Cal	13:28	426			HPF	cal							Yes
0077	LFC Cal	21:45	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:57	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:58	20			VIRUS	cal							Yes
virus0009901_01	bias	21:59	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:00	20			LRS2	cal							Yes
virus0009902_01	dark	22:01	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:02	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:04	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:05	15			LRS2	cal							Yes
0078	Dark	22:13	319.5			HPF	cal							Yes
0079	Quartz FCU	22:20	74.5			HPF	cal							Yes
0080	Quartz FCU	22:21	74.5			HPF	cal							Yes
0081	Quartz FCU	22:23	74.5			HPF	cal							Yes
0082	Quartz FCU	22:25	74.5			HPF	cal							Yes
0083	Quartz FCU	22:27	74.5			HPF	cal							Yes
0084	Quartz FCU	22:28	74.5			HPF	cal							Yes
0085	Quartz FCU	22:30	74.5			HPF	cal							Yes
0086	Alpha Bright Cal	22:33	85.2			HPF	cal							Yes
0087	Alpha Bright Cal	22:34	85.2			HPF	cal							Yes
0088	Alpha Bright Cal	22:36	85.2			HPF	cal							Yes
0089	Alpha Bright Cal	22:38	85.2			HPF	cal							Yes
0090	LFC FCU	22:41	106.5			HPF	cal							Yes
0091	LFC FCU	22:43	106.5			HPF	cal							Yes
0092	LFC Cal	22:46	106.5			HPF	cal							Yes
0093	LFC Cal	22:48	106.5			HPF	cal							Yes
0094	Etalon Cal	22:51	159.8			HPF	cal							Yes
0095	UNe Slave Cal	22:55	426			HPF	cal							Yes
lrs20000017_01	flat_Qth_R	22:56	15			LRS2	cal							Yes
lrs20000017_02	flat_Qth_R	22:57	15			LRS2	cal							Yes
lrs20000017_03	flat_Qth_R	22:59	15			LRS2	cal							Yes
lrs20000017_04	flat_Qth_R	23:00	15			LRS2	cal							Yes
lrs20000017_05	flat_Qth_R	23:01	15			LRS2	cal							Yes
0096	UNe Slave Cal	23:02	426			HPF	cal							Yes
lrs20000018_01	flat_ldls_long_B	23:02	20			LRS2	cal							Yes
lrs20000018_02	flat_ldls_long_B	23:04	20			LRS2	cal							Yes
lrs20000018_03	flat_ldls_long_B	23:05	20			LRS2	cal							Yes
lrs20000019_01	Cd-A_B	23:06	29			LRS2	cal							Yes
lrs20000019_02	Cd-A_B	23:08	29			LRS2	cal							Yes
lrs20000019_03	Cd-A_B	23:09	29			LRS2	cal							Yes
0097	UNe Slave Cal	23:10	426			HPF	cal							Yes
lrs20000020_01	FeAr_R	23:11	15			LRS2	cal							Yes
lrs20000020_02	FeAr_R	23:12	15			LRS2	cal							Yes
lrs20000020_03	FeAr_R	23:13	15			LRS2	cal							Yes
lrs20000021_01	Hg_R	23:14	20			LRS2	cal							Yes
lrs20000021_02	Hg_R	23:16	20			LRS2	cal							Yes
lrs20000021_03	Hg_R	23:17	20			LRS2	cal							Yes
0098	UNe Slave Cal	23:18	426			HPF	cal							Yes
lrs20000022_01	Hg_B	23:18	15			LRS2	cal							Yes
lrs20000022_02	Hg_B	23:19	15			LRS2	cal							Yes
lrs20000022_03	Hg_B	23:20	15			LRS2	cal							Yes
0099	UNe Slave Cal	23:26	426			HPF	cal							Yes
virus0000019_01	flat_ldls_long	23:27	15			VIRUS	cal							Yes
virus0000019_02	flat_ldls_long	23:28	15			VIRUS	cal							Yes
virus0000019_03	flat_ldls_long	23:30	15			VIRUS	cal							Yes
virus0000020_01	Cd-A	23:31	15			VIRUS	cal							Yes
virus0000020_02	Cd-A	23:32	15			VIRUS	cal							Yes
0100	UNe Slave Cal	23:34	426			HPF	cal							Yes
virus0000020_03	Cd-A	23:34	15			VIRUS	cal							Yes
virus0000021_01	Hg	23:35	15			VIRUS	cal							Yes
virus0000021_02	Hg	23:37	15			VIRUS	cal							Yes
virus0000021_03	Hg	23:38	15			VIRUS	cal							Yes
lrs20000023_01	bias	23:39	0			LRS2	cal							Yes
virus0000022_01	bias	23:39	0			VIRUS	cal							Yes
lrs20000023_02	bias	23:40	0			LRS2	cal							Yes
virus0000022_02	bias	23:40	0			VIRUS	cal							Yes
lrs20000023_03	bias	23:41	0			LRS2	cal							Yes
virus0000022_03	bias	23:41	0			VIRUS	cal							Yes
lrs20000023_04	bias	23:42	0			LRS2	cal							Yes
virus0000022_04	bias	23:42	0			VIRUS	cal							Yes
lrs20000023_05	bias	23:43	0			LRS2	cal							Yes
virus0000022_05	bias	23:43	0			VIRUS	cal							Yes
lrs20000023_06	bias	23:43	0			LRS2	cal							Yes
virus0000022_06	bias	23:44	0			VIRUS	cal							Yes
lrs20000023_07	bias	23:44	0			LRS2	cal							Yes
virus0000022_07	bias	23:45	0			VIRUS	cal							Yes
lrs20000023_08	bias	23:45	0			LRS2	cal							Yes
virus0000022_08	bias	23:45	0			VIRUS	cal							Yes
lrs20000023_09	bias	23:46	0			LRS2	cal							Yes
virus0000022_09	bias	23:46	0			VIRUS	cal							Yes
lrs20000023_10	bias	23:47	0			LRS2	cal							Yes
virus0000022_10	bias	23:47	0			VIRUS	cal							Yes
lrs20000023_11	bias	23:48	0			LRS2	cal							Yes
virus0000022_11	bias	23:48	0			VIRUS	cal							Yes
lrs20000024_01	dark	23:49	360			LRS2	cal							Yes
virus0000023_01	dark	23:49	360			VIRUS	cal							Yes
lrs20000024_02	dark	23:55	360			LRS2	cal							Yes
virus0000023_02	dark	23:56	360			VIRUS	cal							Yes

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