HET Night Report Reader

Civil Date	Ephemerides
2026-08-13	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:47	02:35	03:06	10:54	11:26	12:15	-	02:21
Night Length	7:48		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Tyler Ryburn	Aiden Dillard	-	-

Overlaps
TO Overlap	RA Overlap
Cassie Crowe	-

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:41	23.5	21.1	02:28	radar	00:47
06:43	21.1	21.1	11:17	twilight	04:34
Total Time Open					5:21

Program	Night Priority	Science
03:06	Idle due to weather (cloudy/radar)
08:25	Science
08:42	Idle due to weather (poor transparency)
09:07	Science
10:39	Idle due to weather (cloudy)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:14	02:28					23.3	21.7	21.4	156	5	First of Night
↪ Comments			Closed mid-stack due to approaching radar.
06:47	07:08	0.36	0.55	-395	+960	21.1	21.1	21.1	163	8	Stack/Re-stack
11:10	11:17	0.35	0.55	-400	+1336	20.4	20.9	21.0	256	9	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6328	02:26-02:26	00:00	Piston Donuted Segments	Pistoned Segment 11 by 20 um.
6706	09:07-09:08	00:01	Guider 2 transparency jumps on setup complete	Relied on Guider 1 for estimation of transparency.

Ops Comments	none

TO Comments	Cloudy for half 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
virus0000030_03	bias	00:00	0			VIRUS	cal							Yes
lrs20000030_04	bias	00:00	0			LRS2	cal							Yes
virus0000030_04	bias	00:01	0			VIRUS	cal							Yes
lrs20000030_05	bias	00:01	0			LRS2	cal							Yes
virus0000030_05	bias	00:01	0			VIRUS	cal							Yes
lrs20000030_06	bias	00:02	0			LRS2	cal							Yes
virus0000030_06	bias	00:02	0			VIRUS	cal							Yes
lrs20000030_07	bias	00:03	0			LRS2	cal							Yes
virus0000030_07	bias	00:03	0			VIRUS	cal							Yes
lrs20000030_08	bias	00:04	0			LRS2	cal							Yes
virus0000030_08	bias	00:04	0			VIRUS	cal							Yes
lrs20000030_09	bias	00:05	0			LRS2	cal							Yes
virus0000030_09	bias	00:05	0			VIRUS	cal							Yes
lrs20000030_10	bias	00:06	0			LRS2	cal							Yes
virus0000030_10	bias	00:06	0			VIRUS	cal							Yes
lrs20000030_11	bias	00:06	0			LRS2	cal							Yes
virus0000030_11	bias	00:07	0			VIRUS	cal							Yes
lrs20000031_01	dark	00:07	360			LRS2	cal							Yes
virus0000031_01	dark	00:08	360			VIRUS	cal							Yes
lrs20000031_02	dark	00:14	360			LRS2	cal							Yes
virus0000031_02	dark	00:15	360			VIRUS	cal							Yes
lrs20000031_03	dark	00:21	360			LRS2	cal							Yes
virus0000031_03	dark	00:21	360			VIRUS	cal							Yes
lrs20000001_01	skyflat	01:52	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:53	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:54	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:56	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:57	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:58	30			LRS2	cal							Yes
virus0000001_01	skyflat	02:01	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:02	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:04	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:05	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:07	26			VIRUS	cal							Yes
0001	LFC Cal	02:37	106.5			HPF	cal							Yes
0002	LFC Cal	02:40	106.5			HPF	cal							Yes
0003	LFC Cal	02:42	106.5			HPF	cal							Yes
0004	LFC Cal	05:01	106.5			HPF	cal							Yes
0005	LFC Cal	05:04	106.5			HPF	cal							Yes
0006	LFC Cal	05:06	106.5			HPF	cal							Yes
0007	LFC Cal	07:16	106.5			HPF	cal							Yes
0008	LFC Cal	07:19	106.5			HPF	cal							Yes
0009	LFC Cal	07:21	106.5			HPF	cal							Yes
0010	LFC Cal	08:30	106.5			HPF	cal							Yes
virus0000006_01	parallel	08:30	720			VIRUS	sci							Yes
lrs20000007_01	QID 181	08:30	720	5.0	PSU26-3-008	LRS2-R	sci	1.28		21.22	0.81			Yes
0011	LFC Cal	08:32	106.5			HPF	cal							Yes
0012	LFC Cal	08:35	106.5			HPF	cal							Yes
0013	LFC Cal	08:46	106.5			HPF	cal							Yes
lrs20000008_01	parallel	08:46	360			LRS2	sci							Yes
virus0000007_01	QID 414	08:46	360	4.0	PSU26-3-011	VIRUS	sci	1.17		21.91	0.39		Poor transparency. Aborted other dithers.	No
0014	LFC Cal	08:49	106.5			HPF	cal							Yes
lrs20000008_02	parallel	08:53	360			LRS2	sci							Yes
virus0000007_02	parallel	08:53	360	1.0		VIRUS	sci	1.23		22.24	0.37		Aborted through hobs but dithers still ran. Moved telescope positions.	No
lrs20000008_03	parallel	09:01	360			LRS2	sci							Yes
virus0000007_03	parallel	09:01	360	2.0		VIRUS	sci	1.27		22.10	0.51			No
0015	LFC Cal	09:08	106.5			HPF	cal							Yes
lrs20000009_01	parallel	09:08	360			LRS2	sci							Yes
virus0000008_01	QID 825	09:08	360	1.0	UT26-3-014	VIRUS	sci	1.29		22.02	0.64			Yes
0016	LFC Cal	09:11	106.5			HPF	cal							Yes
lrs20000009_02	parallel	09:15	360			LRS2	sci							Yes
virus0000008_02	QID 825	09:15	360	1.0	UT26-3-014	VIRUS	sci	1.29		21.98	0.75			Yes
lrs20000009_03	parallel	09:22	360			LRS2	sci							Yes
virus0000008_03	QID 825	09:22	360	1.0	UT26-3-014	VIRUS	sci	1.29		22.00	0.80			Yes
lrs20000010_01	parallel	09:30	360			LRS2	sci							Yes
virus0000009_01	QID 826	09:30	360	2.0	UT26-3-014	VIRUS	sci	1.25		22.00	0.82			Yes
0017	LFC Cal	09:31	106.5			HPF	cal							Yes
0018	LFC Cal	09:33	106.5			HPF	cal							Yes
lrs20000010_02	parallel	09:38	360			LRS2	sci							Yes
virus0000009_02	QID 826	09:38	360	2.0	UT26-3-014	VIRUS	sci	1.20		21.91	0.87			Yes
lrs20000010_03	parallel	09:45	360			LRS2	sci							Yes
virus0000009_03	QID 826	09:45	360	1.0	UT26-3-014	VIRUS	sci	1.23		21.81	0.94			Yes
virus0000010_01	parallel	09:56	2041.5			VIRUS	sci							Yes
0019	QID 784	09:57	649.6	6.2	UT26-3-008	HPF	sci	1.22		20.72	0.80	365		Yes
0020	QID 784	10:09	649.6	0.2	UT26-3-008	HPF	sci	1.26		20.73	0.85	423		Yes
0021	QID 784	10:20	649.6	1.2	UT26-3-008	HPF	sci	1.34		20.76	0.82	365		Yes
0022	LFC Cal	10:32	106.5			HPF	cal							Yes
lrs20000011_01	BD+210607_056_E	10:38	30	7.5		LRS2	spec	1.58		21.58	0.60			Yes
virus0000011_01	parallel	10:50	2400			VIRUS	sci							Yes
0023	LFC Cal	10:51	106.5			HPF	cal							Yes
lrs20000012_01	QID 977	10:51	1200	12.0	PSU26-3-006	LRS2-B	sci	1.42		21.77	0.15		Heavy clouds rolled in soon after exposure started. Aborted half way through.	No
0024	LFC Cal	10:53	106.5			HPF	cal							Yes
0025	LFC Cal	10:55	106.5			HPF	cal							Yes
lrs20000013_01	bias	11:13	0			LRS2	cal							Yes
virus0000012_01	bias	11:14	0			VIRUS	cal							Yes
virus0000013_01	Cd-A	11:18	15		ENG26-3-002	VIRUS	cal							Yes
virus0000014_01	Hg	11:19	15		ENG26-3-002	VIRUS	cal							Yes
0026	Dark	11:27	319.5			HPF	cal							Yes
0027	Quartz FCU	11:38	74.5			HPF	cal							Yes
0028	Quartz FCU	11:40	74.5			HPF	cal							Yes
0029	Quartz FCU	11:42	74.5			HPF	cal							Yes
0030	Quartz FCU	11:44	74.5			HPF	cal							Yes
0031	Quartz FCU	11:45	74.5			HPF	cal							Yes
0032	Quartz FCU	11:47	74.5			HPF	cal							Yes
0033	Quartz FCU	11:49	74.5			HPF	cal							Yes
0034	Alpha Bright Cal	11:51	85.2			HPF	cal							Yes
0035	Alpha Bright Cal	11:53	85.2			HPF	cal							Yes
0036	Alpha Bright Cal	11:55	85.2			HPF	cal							Yes
0037	Alpha Bright Cal	11:57	85.2			HPF	cal							Yes
0038	LFC FCU	12:00	106.5			HPF	cal							Yes
0039	LFC FCU	12:02	106.5			HPF	cal							Yes
0040	LFC FCU	12:05	106.5			HPF	cal							Yes
0041	LFC FCU	12:07	106.5			HPF	cal							Yes
0042	LFC FCU	12:09	106.5			HPF	cal							Yes
0043	LFC FCU	12:12	106.5			HPF	cal							Yes
0044	LFC Cal	12:15	106.5			HPF	cal							Yes
0045	LFC Cal	12:17	106.5			HPF	cal							Yes
0046	Etalon Cal	12:25	159.8			HPF	cal							Yes
0047	Etalon Cal	12:28	159.8			HPF	cal							Yes
0048	Etalon Cal	12:31	159.8			HPF	cal							Yes
0049	Etalon Cal	12:34	159.8			HPF	cal							Yes
0050	UNe Slave Cal	12:38	426			HPF	cal							Yes
0051	UNe Slave Cal	12:46	426			HPF	cal							Yes
0052	UNe Slave Cal	12:53	426			HPF	cal							Yes
0053	UNe Slave Cal	13:01	426			HPF	cal							Yes
0054	UNe Slave Cal	13:09	426			HPF	cal							Yes
0055	UNe Slave Cal	13:17	426			HPF	cal							Yes
0130	LFC Cal	21:53	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:17	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:18	20			VIRUS	cal							Yes
virus0009901_01	bias	22:19	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	22:22	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:24	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:25	15			LRS2	cal							Yes
0131	Dark	22:29	319.5			HPF	cal							Yes
0132	Quartz FCU	22:36	74.5			HPF	cal							Yes
0133	Quartz FCU	22:38	74.5			HPF	cal							Yes
0134	Quartz FCU	22:39	74.5			HPF	cal							Yes
0135	Quartz FCU	22:41	74.5			HPF	cal							Yes
0136	Quartz FCU	22:43	74.5			HPF	cal							Yes
0137	Quartz FCU	22:45	74.5			HPF	cal							Yes
0138	Quartz FCU	22:47	74.5			HPF	cal							Yes
0139	Alpha Bright Cal	22:49	85.2			HPF	cal							Yes
0140	Alpha Bright Cal	22:51	85.2			HPF	cal							Yes
0141	Alpha Bright Cal	22:53	85.2			HPF	cal							Yes
0142	Alpha Bright Cal	22:55	85.2			HPF	cal							Yes
0143	LFC FCU	22:57	106.5			HPF	cal							Yes
0144	LFC FCU	23:00	106.5			HPF	cal							Yes
0145	LFC Cal	23:03	106.5			HPF	cal							Yes
0146	LFC Cal	23:05	106.5			HPF	cal							Yes
0147	Etalon Cal	23:08	159.8			HPF	cal							Yes
0148	UNe Slave Cal	23:11	426			HPF	cal							Yes
lrs20000024_01	flat_Qth_R	23:14	15			LRS2	cal							Yes
lrs20000024_02	flat_Qth_R	23:15	15			LRS2	cal							Yes
lrs20000024_03	flat_Qth_R	23:17	15			LRS2	cal							Yes
lrs20000024_04	flat_Qth_R	23:18	15			LRS2	cal							Yes
0149	UNe Slave Cal	23:19	426			HPF	cal							Yes
lrs20000024_05	flat_Qth_R	23:19	15			LRS2	cal							Yes
lrs20000025_01	flat_ldls_long_B	23:20	20			LRS2	cal							Yes
lrs20000025_02	flat_ldls_long_B	23:22	20			LRS2	cal							Yes
lrs20000025_03	flat_ldls_long_B	23:23	20			LRS2	cal							Yes
lrs20000026_01	Cd-A_B	23:24	29			LRS2	cal							Yes
lrs20000026_02	Cd-A_B	23:26	29			LRS2	cal							Yes
0150	UNe Slave Cal	23:27	426			HPF	cal							Yes
lrs20000026_03	Cd-A_B	23:27	29			LRS2	cal							Yes
lrs20000027_01	FeAr_R	23:29	15			LRS2	cal							Yes
lrs20000027_02	FeAr_R	23:30	15			LRS2	cal							Yes
lrs20000027_03	FeAr_R	23:31	15			LRS2	cal							Yes
lrs20000028_01	Hg_R	23:32	20			LRS2	cal							Yes
lrs20000028_02	Hg_R	23:34	20			LRS2	cal							Yes
0151	UNe Slave Cal	23:35	426			HPF	cal							Yes
lrs20000028_03	Hg_R	23:35	20			LRS2	cal							Yes
lrs20000029_01	Hg_B	23:36	15			LRS2	cal							Yes
lrs20000029_02	Hg_B	23:38	15			LRS2	cal							Yes
lrs20000029_03	Hg_B	23:39	15			LRS2	cal							Yes
0152	UNe Slave Cal	23:43	426			HPF	cal							Yes
virus0000027_01	flat_ldls_long	23:45	15			VIRUS	cal							Yes
virus0000027_02	flat_ldls_long	23:47	15			VIRUS	cal							Yes
virus0000027_03	flat_ldls_long	23:48	15			VIRUS	cal							Yes
virus0000028_01	Cd-A	23:49	15			VIRUS	cal							Yes
0153	UNe Slave Cal	23:50	426			HPF	cal							Yes
virus0000028_02	Cd-A	23:51	15			VIRUS	cal							Yes
virus0000028_03	Cd-A	23:52	15			VIRUS	cal							Yes
virus0000029_01	Hg	23:54	15			VIRUS	cal							Yes
virus0000029_02	Hg	23:55	15			VIRUS	cal							Yes
virus0000029_03	Hg	23:56	15			VIRUS	cal							Yes
lrs20000030_01	bias	23:58	0			LRS2	cal							Yes
virus0000030_01	bias	23:58	0			VIRUS	cal							Yes
lrs20000030_02	bias	23:59	0			LRS2	cal							Yes
virus0000030_02	bias	23:59	0			VIRUS	cal							Yes
lrs20000030_03	bias	23:59	0			LRS2	cal							Yes

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