HET Night Report Reader

Civil Date	Ephemerides
2026-06-30	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:11	03:04	03:40	10:19	10:55	11:49	03:04	-
Night Length	6:39		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
05:42	18.1	19.6	08:09	dew point	02:27
09:43	17.5	17.2	11:06	twilight	01:23
Total Time Open					3:50

Program	Night Priority	Science
03:40	Idle due to weather (Radar, dew point, clouds)
06:43	Science
07:58	Idle due to weather (Dew point)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
05:42	06:22	0.43	0.67	-385	+1352	17.4	18.6	19.0	139	9	First of Night
09:43	10:24	0.39	0.61	-425	+1885	17.8	18.1	18.0	181	14	Stack/Re-stack
10:32	11:04				+1813	17.5	18.0	18.0	183	14	End of Night

Problem Reports					no PRs

Ops Comments	none

TO Comments	Clouds, dew point, humidity and rain 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
0001	LFC Cal	02:35	106.5			HPF	cal							Yes
0002	LFC Cal	02:37	106.5			HPF	cal							Yes
0003	LFC Cal	02:39	106.5			HPF	cal							Yes
0004	LFC Cal	03:58	106.5			HPF	cal							Yes
0005	LFC Cal	04:00	106.5			HPF	cal							Yes
0006	LFC Cal	04:03	106.5			HPF	cal							Yes
0007	LFC Cal	05:39	106.5			HPF	cal							Yes
0008	LFC Cal	05:42	106.5			HPF	cal							Yes
0009	LFC Cal	05:44	106.5			HPF	cal							Yes
0010	HR8258_tell_std	06:50	330.2	6.5		HPF	telluric	1.77		18.15	0.66			Yes
lrs20000001_01	HD180609_056_E	07:02	30	7.5		LRS2	spec	2.16		18.85	0.78			Yes
lrs20000002_01	HD180609_066_E	07:06	30	2.5		LRS2	spec	1.81		18.87	0.87			Yes
virus0000001_01	parallel	07:11	2000			VIRUS	sci							Yes
0011	parallel	07:12	969.1	5.8	UT26-2-007	HPF	sci	1.62		18.02	0.76	45		Yes
0012	parallel	07:29	969.1	0.8	UT26-2-007	HPF	sci	1.67		18.17	0.82	52		Yes
0013	LFC Cal	07:52	106.5			HPF	cal							Yes
virus0000002_01	parallel	07:52	360			VIRUS	sci							Yes
lrs20000003_01	parallel	07:52	360	7.0	UT26-2-017	LRS2-R	sci	1.59		18.50	0.85			P4
0014	LFC Cal	07:55	106.5			HPF	cal							Yes
0015	LFC Cal	08:05	106.5			HPF	cal							Yes
lrs20000004_01	parallel	08:05	180	7.0	UT26-2-017	LRS2-B	sci	1.76		18.59	0.59		Aborted mid-exposure due to high humidity closure.	No
0016	LFC Cal	09:04	106.5			HPF	cal							Yes
0017	LFC Cal	09:06	106.5			HPF	cal							Yes
0018	LFC Cal	09:08	106.5			HPF	cal							Yes
lrs20000005_01	bias	10:33	0			LRS2	cal							Yes
virus0000003_01	bias	10:33	0			VIRUS	cal							Yes
virus0000004_01	Cd-A	10:37	15		ENG26-2-002	VIRUS	cal							Yes
virus0000005_01	Hg	10:39	15		ENG26-2-002	VIRUS	cal							Yes
0019	Dark	11:07	319.5			HPF	cal							Yes
0020	Quartz FCU	11:19	74.5			HPF	cal							Yes
0021	Quartz FCU	11:21	74.5			HPF	cal							Yes
0022	Quartz FCU	11:23	74.5			HPF	cal							Yes
0023	Quartz FCU	11:24	74.5			HPF	cal							Yes
0024	Quartz FCU	11:26	74.5			HPF	cal							Yes
0025	Quartz FCU	11:28	74.5			HPF	cal							Yes
0026	Quartz FCU	11:30	74.5			HPF	cal							Yes
0027	Alpha Bright Cal	11:32	85.2			HPF	cal							Yes
0028	Alpha Bright Cal	11:34	85.2			HPF	cal							Yes
0029	Alpha Bright Cal	11:36	85.2			HPF	cal							Yes
0030	Alpha Bright Cal	11:38	85.2			HPF	cal							Yes
0031	LFC FCU	11:40	106.5			HPF	cal							Yes
0032	LFC FCU	11:43	106.5			HPF	cal							Yes
0033	LFC FCU	11:45	106.5			HPF	cal							Yes
0034	LFC FCU	11:47	106.5			HPF	cal							Yes
0035	LFC FCU	11:50	106.5			HPF	cal							Yes
0036	LFC FCU	11:52	106.5			HPF	cal							Yes
0037	LFC Cal	11:55	106.5			HPF	cal							Yes
0038	LFC Cal	11:57	106.5			HPF	cal							Yes
0039	Etalon Cal	12:05	159.8			HPF	cal							Yes
0040	Etalon Cal	12:08	159.8			HPF	cal							Yes
0041	Etalon Cal	12:11	159.8			HPF	cal							Yes
0042	Etalon Cal	12:15	159.8			HPF	cal							Yes
0043	UNe Slave Cal	12:18	426			HPF	cal							Yes
0044	UNe Slave Cal	12:26	426			HPF	cal							Yes
0045	UNe Slave Cal	12:34	426			HPF	cal							Yes
0046	UNe Slave Cal	12:41	426			HPF	cal							Yes
0047	UNe Slave Cal	12:49	426			HPF	cal							Yes
0048	UNe Slave Cal	12:57	426			HPF	cal							Yes
0049	LFC Cal	21:40	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:52	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:52	20			VIRUS	cal							Yes
virus0009901_01	bias	21:54	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:54	20			LRS2	cal							Yes
virus0009902_01	dark	21:56	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:57	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	21:58	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:00	15			LRS2	cal							Yes
0050	Dark	22:05	319.5			HPF	cal							Yes
0051	Quartz FCU	22:12	74.5			HPF	cal							Yes
0052	Quartz FCU	22:14	74.5			HPF	cal							Yes
0053	Quartz FCU	22:15	74.5			HPF	cal							Yes
0054	Quartz FCU	22:17	74.5			HPF	cal							Yes
0055	Quartz FCU	22:19	74.5			HPF	cal							Yes
0056	Quartz FCU	22:21	74.5			HPF	cal							Yes
0057	Quartz FCU	22:23	74.5			HPF	cal							Yes
0058	Alpha Bright Cal	22:25	85.2			HPF	cal							Yes
0059	Alpha Bright Cal	22:27	85.2			HPF	cal							Yes
0060	Alpha Bright Cal	22:29	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	22:31	85.2			HPF	cal							Yes
0062	LFC FCU	22:33	106.5			HPF	cal							Yes
0063	LFC FCU	22:36	106.5			HPF	cal							Yes
0064	LFC Cal	22:38	106.5			HPF	cal							Yes
0065	LFC Cal	22:41	106.5			HPF	cal							Yes
0066	Etalon Cal	22:43	159.8			HPF	cal							Yes
0067	UNe Slave Cal	22:47	426			HPF	cal							Yes
lrs20000002_01	flat_Qth_R	22:48	15			LRS2	cal							Yes
lrs20000002_02	flat_Qth_R	22:49	15			LRS2	cal							Yes
lrs20000002_03	flat_Qth_R	22:51	15			LRS2	cal							Yes
lrs20000002_04	flat_Qth_R	22:52	15			LRS2	cal							Yes
lrs20000002_05	flat_Qth_R	22:53	15			LRS2	cal							Yes
lrs20000003_01	flat_ldls_long_B	22:54	20			LRS2	cal							Yes
0068	UNe Slave Cal	22:55	426			HPF	cal							Yes
lrs20000003_02	flat_ldls_long_B	22:56	20			LRS2	cal							Yes
lrs20000003_03	flat_ldls_long_B	22:57	20			LRS2	cal							Yes
lrs20000004_01	Cd-A_B	22:58	29			LRS2	cal							Yes
lrs20000004_02	Cd-A_B	23:00	29			LRS2	cal							Yes
lrs20000004_03	Cd-A_B	23:01	29			LRS2	cal							Yes
0069	UNe Slave Cal	23:02	426			HPF	cal							Yes
lrs20000005_01	FeAr_R	23:03	15			LRS2	cal							Yes
lrs20000005_02	FeAr_R	23:04	15			LRS2	cal							Yes
lrs20000005_03	FeAr_R	23:05	15			LRS2	cal							Yes
lrs20000006_01	Hg_R	23:06	20			LRS2	cal							Yes
lrs20000006_02	Hg_R	23:08	20			LRS2	cal							Yes
lrs20000006_03	Hg_R	23:09	20			LRS2	cal							Yes
0070	UNe Slave Cal	23:10	426			HPF	cal							Yes
lrs20000007_01	Hg_B	23:10	15			LRS2	cal							Yes
lrs20000007_02	Hg_B	23:12	15			LRS2	cal							Yes
lrs20000007_03	Hg_B	23:13	15			LRS2	cal							Yes
0071	UNe Slave Cal	23:18	426			HPF	cal							Yes
virus0000004_01	flat_ldls_long	23:19	15			VIRUS	cal							Yes
virus0000004_02	flat_ldls_long	23:21	15			VIRUS	cal							Yes
virus0000004_03	flat_ldls_long	23:22	15			VIRUS	cal							Yes
virus0000005_01	Cd-A	23:23	15			VIRUS	cal							Yes
virus0000005_02	Cd-A	23:25	15			VIRUS	cal							Yes
0072	UNe Slave Cal	23:26	426			HPF	cal							Yes
virus0000005_03	Cd-A	23:26	15			VIRUS	cal							Yes
virus0000006_01	Hg	23:28	15			VIRUS	cal							Yes
virus0000006_02	Hg	23:29	15			VIRUS	cal							Yes
virus0000006_03	Hg	23:30	15			VIRUS	cal							Yes
lrs20000008_01	bias	23:32	0			LRS2	cal							Yes
virus0000007_01	bias	23:32	0			VIRUS	cal							Yes
lrs20000008_02	bias	23:33	0			LRS2	cal							Yes
lrs20000008_03	bias	23:33	0			LRS2	cal							Yes
virus0000007_02	bias	23:33	0			VIRUS	cal							Yes
virus0000007_03	bias	23:34	0			VIRUS	cal							Yes
lrs20000008_04	bias	23:34	0			LRS2	cal							Yes
virus0000007_04	bias	23:35	0			VIRUS	cal							Yes
lrs20000008_05	bias	23:35	0			LRS2	cal							Yes
virus0000007_05	bias	23:35	0			VIRUS	cal							Yes
lrs20000008_06	bias	23:36	0			LRS2	cal							Yes
virus0000007_06	bias	23:36	0			VIRUS	cal							Yes
lrs20000008_07	bias	23:37	0			LRS2	cal							Yes
virus0000007_07	bias	23:37	0			VIRUS	cal							Yes
lrs20000008_08	bias	23:38	0			LRS2	cal							Yes
virus0000007_08	bias	23:38	0			VIRUS	cal							Yes
lrs20000008_09	bias	23:39	0			LRS2	cal							Yes
virus0000007_09	bias	23:39	0			VIRUS	cal							Yes
lrs20000008_10	bias	23:39	0			LRS2	cal							Yes
virus0000007_10	bias	23:40	0			VIRUS	cal							Yes
lrs20000008_11	bias	23:40	0			LRS2	cal							Yes
virus0000007_11	bias	23:41	0			VIRUS	cal							Yes
lrs20000009_01	dark	23:41	360			LRS2	cal							Yes
virus0000008_01	dark	23:41	360			VIRUS	cal							Yes
lrs20000009_02	dark	23:48	360			LRS2	cal							Yes
virus0000008_02	dark	23:48	360			VIRUS	cal							Yes
lrs20000009_03	dark	23:55	360			LRS2	cal							Yes
virus0000008_03	dark	23:55	360			VIRUS	cal							Yes

Previous Day:		Jun 30, 2026 Civil		Next Day:
HET Night Report	VIRUS Biases	VIRUS Biases	LRS2 Biases	HET Night Report	VIRUS Biases
LRS2 Biases	EON Charts	EON Charts		LRS2 Biases	EON Charts