HET Night Report Reader

Civil Date	Ephemerides
2026-06-17	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:09	03:02	03:38	10:15	10:51	11:46	-	04:46
Night Length	6:37		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Zach Vanderbosch	Cassie Crowe	-	-

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:00	29.6	24.2	01:07	engineering	00:07
01:13	29.6	24.4	01:34	engineering	00:21
01:44	28.4	24.2	03:28	dust	01:44
05:34	23.6	24.3	06:00	wind	00:26
Total Time Open					2:38

Program	Night Priority	Science
03:38	Idle due to weather (High particle count, high winds)
05:35	Science
05:57	Idle due to weather (High winds, dust)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:43	03:22	0.53	0.79	-420	-1999	26.4	25.8	25.2	276	28	First of Night

Problem Reports					no PRs

Ops Comments	none

TO Comments	Closed most of night due to dust and wind. Turned on HVAC fan to help with dust but chiller is still off.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000022_02	Hg	00:00	15			VIRUS	cal							Yes
virus0000022_03	Hg	00:02	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:05	0			LRS2	cal							Yes
virus0000001_01	bias	00:05	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:06	0			LRS2	cal							Yes
virus0000001_02	bias	00:07	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:08	0			LRS2	cal							Yes
virus0000001_03	bias	00:08	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:10	0			LRS2	cal							Yes
virus0000001_04	bias	00:10	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:12	0			LRS2	cal							Yes
virus0000001_05	bias	00:12	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:13	0			LRS2	cal							Yes
virus0000001_06	bias	00:14	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:15	0			LRS2	cal							Yes
virus0000001_07	bias	00:16	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:17	0			LRS2	cal							Yes
virus0000001_08	bias	00:17	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:19	0			LRS2	cal							Yes
virus0000001_09	bias	00:19	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:21	0			LRS2	cal							Yes
virus0000001_10	bias	00:21	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:23	0			LRS2	cal							Yes
virus0000001_11	bias	00:23	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:24	360			LRS2	cal							Yes
virus0000002_01	dark	00:25	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:32	360			LRS2	cal							Yes
virus0000002_02	dark	00:32	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:40	360			LRS2	cal							Yes
virus0000002_03	dark	00:40	360			VIRUS	cal							Yes
0001	twilight	02:06	298.2			HPF	cal					398		Yes
lrs20000003_01	skyflat	02:14	7			LRS2	cal							Yes
lrs20000004_01	skyflat	02:16	10			LRS2	cal							Yes
lrs20000005_01	skyflat	02:17	13			LRS2	cal							Yes
lrs20000006_01	skyflat	02:18	16			LRS2	cal							Yes
lrs20000007_01	skyflat	02:19	22			LRS2	cal							Yes
lrs20000008_01	skyflat	02:20	30			LRS2	cal							Yes
virus0000003_01	skyflat	02:24	7			VIRUS	cal							Yes
virus0000004_01	skyflat	02:27	10			VIRUS	cal							Yes
virus0000005_01	skyflat	02:30	14			VIRUS	cal							Yes
virus0000006_01	skyflat	02:32	18			VIRUS	cal							Yes
virus0000007_01	skyflat	02:35	26			VIRUS	cal							Yes
0002	LFC Cal	03:55	106.5			HPF	cal							Yes
0003	LFC Cal	03:58	106.5			HPF	cal							Yes
0004	LFC Cal	04:00	106.5			HPF	cal							Yes
0005	LFC Cal	04:44	106.5			HPF	cal							Yes
0006	LFC Cal	04:46	106.5			HPF	cal							Yes
0007	LFC Cal	04:48	106.5			HPF	cal							Yes
virus0000008_01	parallel	05:40	1000			VIRUS	sci							Yes
0008	QID 102	05:41	969.1	5.8	UT26-2-019	HPF	sci	2.19		20.27	0.74	207		Yes
0009	LFC Cal	05:59	106.5			HPF	cal							Yes
0010	LFC Cal	06:30	106.5			HPF	cal							Yes
0011	LFC Cal	06:33	106.5			HPF	cal							Yes
0012	LFC Cal	06:35	106.5			HPF	cal							Yes
0013	LFC Cal	07:37	106.5			HPF	cal							Yes
0014	LFC Cal	07:39	106.5			HPF	cal							Yes
0015	LFC Cal	07:41	106.5			HPF	cal							Yes
0016	LFC Cal	08:36	106.5			HPF	cal							Yes
0017	LFC Cal	08:38	106.5			HPF	cal							Yes
0018	LFC Cal	08:40	106.5			HPF	cal							Yes
0019	LFC Cal	09:34	106.5			HPF	cal							Yes
0020	LFC Cal	09:37	106.5			HPF	cal							Yes
0021	LFC Cal	09:39	106.5			HPF	cal							Yes
lrs20000009_01	bias	10:28	0			LRS2	cal							Yes
virus0000009_01	bias	10:29	0			VIRUS	cal							Yes
virus0000010_01	Cd-A	10:33	15		ENG-002	VIRUS	cal							Yes
virus0000011_01	Hg	10:36	15		ENG-002	VIRUS	cal							Yes
0022	Dark	10:43	319.5			HPF	cal							Yes
0023	Quartz FCU	10:54	74.5			HPF	cal							Yes
0024	Quartz FCU	10:56	74.5			HPF	cal							Yes
0025	Quartz FCU	10:58	74.5			HPF	cal							Yes
0026	Quartz FCU	11:00	74.5			HPF	cal							Yes
0027	Quartz FCU	11:01	74.5			HPF	cal							Yes
0028	Quartz FCU	11:03	74.5			HPF	cal							Yes
0029	Quartz FCU	11:05	74.5			HPF	cal							Yes
0030	Alpha Bright Cal	11:07	85.2			HPF	cal							Yes
0031	Alpha Bright Cal	11:09	85.2			HPF	cal							Yes
0032	Alpha Bright Cal	11:11	85.2			HPF	cal							Yes
0033	Alpha Bright Cal	11:13	85.2			HPF	cal							Yes
0034	LFC FCU	11:16	106.5			HPF	cal							Yes
0035	LFC FCU	11:18	106.5			HPF	cal							Yes
0036	LFC FCU	11:20	106.5			HPF	cal							Yes
0037	LFC FCU	11:23	106.5			HPF	cal							Yes
0038	LFC FCU	11:25	106.5			HPF	cal							Yes
0039	LFC FCU	11:27	106.5			HPF	cal							Yes
0040	LFC Cal	11:30	106.5			HPF	cal							Yes
0041	LFC Cal	11:33	106.5			HPF	cal							Yes
0042	Etalon Cal	11:40	159.8			HPF	cal							Yes
0043	Etalon Cal	11:44	159.8			HPF	cal							Yes
0044	Etalon Cal	11:47	159.8			HPF	cal							Yes
0045	Etalon Cal	11:50	159.8			HPF	cal							Yes
0046	UNe Slave Cal	11:54	426			HPF	cal							Yes
0047	UNe Slave Cal	12:01	426			HPF	cal							Yes
0048	UNe Slave Cal	12:09	426			HPF	cal							Yes
0049	UNe Slave Cal	12:17	426			HPF	cal							Yes
0050	UNe Slave Cal	12:25	426			HPF	cal							Yes
0051	UNe Slave Cal	12:32	426			HPF	cal							Yes
virus0008100_01	dark	13:26	20			VIRUS	cal							Yes
virus0008100_02	dark	13:29	20			VIRUS	cal							Yes
virus0008101_01	flat_ldls_long	13:31	15			VIRUS	cal							Yes
virus0008101_02	flat_ldls_long	13:34	15			VIRUS	cal							Yes
virus0008102_01	bias	13:36	0			VIRUS	cal							Yes
virus0008102_02	bias	13:39	0			VIRUS	cal							Yes
virus0008100_01	dark	21:22	20			VIRUS	cal							Yes
virus0008100_02	dark	21:24	20			VIRUS	cal							Yes
virus0008101_01	flat_ldls_long	21:27	15			VIRUS	cal							Yes
virus0008101_02	flat_ldls_long	21:29	15			VIRUS	cal							Yes
virus0008102_01	bias	21:32	0			VIRUS	cal							Yes
virus0008102_02	bias	21:34	0			VIRUS	cal							Yes
virus0008103_01	dark	21:53	20			VIRUS	cal							Yes
0051	LFC Cal	21:54	106.5			HPF	cal							Yes
virus0008103_02	dark	21:56	20			VIRUS	cal							Yes
virus0008104_01	flat_ldls_long	21:59	15			VIRUS	cal							Yes
virus0008104_02	flat_ldls_long	22:01	15			VIRUS	cal							Yes
virus0008105_01	bias	22:03	0			VIRUS	cal							Yes
virus0008105_02	bias	22:05	0			VIRUS	cal							Yes
lrs20009900_01	bias	22:15	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:16	20			VIRUS	cal							Yes
virus0009901_01	bias	22:18	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:20	20			LRS2	cal							Yes
virus0009902_01	dark	22:21	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:23	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:25	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:26	15			LRS2	cal							Yes
0052	Dark	22:29	319.5			HPF	cal							Yes
0053	Quartz FCU	22:36	74.5			HPF	cal							Yes
0054	Quartz FCU	22:37	74.5			HPF	cal							Yes
0055	Quartz FCU	22:39	74.5			HPF	cal							Yes
0056	Quartz FCU	22:41	74.5			HPF	cal							Yes
0057	Quartz FCU	22:43	74.5			HPF	cal							Yes
0058	Quartz FCU	22:45	74.5			HPF	cal							Yes
0059	Quartz FCU	22:46	74.5			HPF	cal							Yes
0060	Alpha Bright Cal	22:49	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	22:51	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	22:52	85.2			HPF	cal							Yes
0063	Alpha Bright Cal	22:54	85.2			HPF	cal							Yes
0064	LFC FCU	22:57	106.5			HPF	cal							Yes
0065	LFC FCU	22:59	106.5			HPF	cal							Yes
0066	LFC Cal	23:02	106.5			HPF	cal							Yes
0067	LFC Cal	23:04	106.5			HPF	cal							Yes
0068	Etalon Cal	23:07	159.8			HPF	cal							Yes
0069	UNe Slave Cal	23:11	426			HPF	cal							Yes
lrs20000018_01	flat_Qth_R	23:12	15			LRS2	cal							Yes
lrs20000018_02	flat_Qth_R	23:13	15			LRS2	cal							Yes
lrs20000018_03	flat_Qth_R	23:15	15			LRS2	cal							Yes
lrs20000018_04	flat_Qth_R	23:16	15			LRS2	cal							Yes
lrs20000018_05	flat_Qth_R	23:17	15			LRS2	cal							Yes
lrs20000019_01	flat_ldls_long_B	23:18	20			LRS2	cal							Yes
0070	UNe Slave Cal	23:19	426			HPF	cal							Yes
lrs20000019_02	flat_ldls_long_B	23:20	20			LRS2	cal							Yes
lrs20000019_03	flat_ldls_long_B	23:21	20			LRS2	cal							Yes
lrs20000020_01	Cd-A_B	23:22	29			LRS2	cal							Yes
lrs20000020_02	Cd-A_B	23:24	29			LRS2	cal							Yes
lrs20000020_03	Cd-A_B	23:25	29			LRS2	cal							Yes
0071	UNe Slave Cal	23:26	426			HPF	cal							Yes
lrs20000021_01	FeAr_R	23:27	15			LRS2	cal							Yes
lrs20000021_02	FeAr_R	23:28	15			LRS2	cal							Yes
lrs20000021_03	FeAr_R	23:29	15			LRS2	cal							Yes
lrs20000022_01	Hg_R	23:30	20			LRS2	cal							Yes
lrs20000022_02	Hg_R	23:32	20			LRS2	cal							Yes
lrs20000022_03	Hg_R	23:33	20			LRS2	cal							Yes
0072	UNe Slave Cal	23:34	426			HPF	cal							Yes
lrs20000023_01	Hg_B	23:34	15			LRS2	cal							Yes
lrs20000023_02	Hg_B	23:35	15			LRS2	cal							Yes
lrs20000023_03	Hg_B	23:37	15			LRS2	cal							Yes
0073	UNe Slave Cal	23:42	426			HPF	cal							Yes
virus0000020_01	flat_ldls_long	23:43	15			VIRUS	cal							Yes
virus0000020_02	flat_ldls_long	23:45	15			VIRUS	cal							Yes
virus0000020_03	flat_ldls_long	23:48	15			VIRUS	cal							Yes
0074	UNe Slave Cal	23:50	426			HPF	cal							Yes
virus0000021_01	Cd-A	23:50	15			VIRUS	cal							Yes
virus0000021_02	Cd-A	23:53	15			VIRUS	cal							Yes
virus0000021_03	Cd-A	23:55	15			VIRUS	cal							Yes
virus0000022_01	Hg	23:58	15			VIRUS	cal							Yes

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