HET Night Report Reader

Civil Date	Ephemerides
2026-07-07	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:10	03:03	03:38	10:23	10:59	11:53	06:41	-
Night Length	6:45		Sunset Temperature

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

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
01:49	21.5	20.0	11:07	twilight	09:18
Total Time Open					9:18

Program	Night Priority	Science
03:38	Science
09:45	Idle due to weather (SSB too bright)
09:53	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:36	03:05	0.42	0.64	-385	-463	20.4	21.0	20.6	123	12	First of Night
06:36	07:13	0.51	0.76	-410	+236	16.7	17.6	17.9	144	10	Stack/Re-stack
08:32	08:54	0.43	0.66	-410	+2038	16.4	17.1	17.1	165	7	Stack/Re-stack
10:58	11:07	0.70	1.15	-595	+2338	16.8	17.2	17.3	164	7	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6689	06:36-07:13, 08:31 - 08:54	01:00	Mirror 9:8 alignment with array progressively deteriorated	Re-stacked and continued on sky
6251	08:54-09:10	00:16	cancel_trajectory hung. had to restart TCS and Tracker servers.

Ops Comments	none

TO Comments	Issue with mirror 9:8 deviating from the array over time during the night. Otherwise a calm and clear night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000023_02	dark	00:01	360			LRS2	cal							Yes
virus0000026_02	dark	00:02	360			VIRUS	cal							Yes
lrs20000023_03	dark	00:08	360			LRS2	cal							Yes
virus0000026_03	dark	00:08	360			VIRUS	cal							Yes
lrs20000001_01	skyflat	02:16	7			LRS2	cal							Yes
lrs20000002_01	skyflat	02:17	10			LRS2	cal							Yes
lrs20000003_01	skyflat	02:18	13			LRS2	cal							Yes
lrs20000004_01	skyflat	02:20	16			LRS2	cal							Yes
lrs20000005_01	skyflat	02:21	22			LRS2	cal							Yes
lrs20000006_01	skyflat	02:22	30			LRS2	cal							Yes
virus0000001_01	skyflat	02:26	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:27	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:29	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:30	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:31	26			VIRUS	cal							Yes
0001	parallel	03:28	617.7	5.7	UT26-2-004	HPF	sci	1.30	0.67	20.20	0.99	146		Yes
virus0000006_01	parallel	03:28	6665.4			VIRUS	sci							Yes
0002	parallel	03:39	617.7	0.7	UT26-2-004	HPF	sci	1.31	0.62	20.33	0.92	157		Yes
0003	parallel	03:51	617.7	0.7	UT26-2-004	HPF	sci	1.33	0.62	20.40	0.89	171		Yes
0004	parallel	04:02	617.7	0.7	UT26-2-004	HPF	sci	1.47	0.70	20.43	0.89	169		Yes
0005	parallel	04:13	617.7	0.7	UT26-2-004	HPF	sci	1.51	0.62	20.46	0.91	171		Yes
0006	parallel	04:24	617.7	0.7	UT26-2-004	HPF	sci	1.39	0.74	20.60	0.74	164		Yes
0007	parallel	04:35	617.7	0.7	UT26-2-004	HPF	sci	1.39	0.70	20.56	0.76	152		Yes
0008	parallel	04:46	617.7	0.7	UT26-2-004	HPF	sci	1.45	0.86	20.43	0.80	137		Yes
0009	parallel	04:57	617.7	0.7	UT26-2-004	HPF	sci	1.50	0.93	20.32	0.86	124		Yes
0010	parallel	05:08	617.7	1.7	UT26-2-004	HPF	sci	1.53	0.74	20.22	0.89	115		Yes
0011	LFC Cal	05:24	106.5			HPF	cal							Yes
lrs20000007_01	parallel	05:24	360			LRS2	sci							Yes
virus0000007_01	parallel	05:24	360	5.0	UT26-2-016	VIRUS	sci	1.74	0.84	22.26	0.65			Yes
0012	LFC Cal	05:26	106.5			HPF	cal							Yes
lrs20000007_02	parallel	05:31	360			LRS2	sci							Yes
virus0000007_02	parallel	05:31	360	1.0	UT26-2-016	VIRUS	sci	1.70	0.96	22.23	0.69			Yes
lrs20000007_03	parallel	05:38	360			LRS2	sci							Yes
virus0000007_03	parallel	05:38	360	1.0	UT26-2-016	VIRUS	sci	1.67	0.89	22.17	0.71			Yes
0013	LFC Cal	05:48	106.5			HPF	cal							Yes
lrs20000008_01	parallel	05:48	360			LRS2	sci							Yes
virus0000008_01	parallel	05:48	360	4.0	UT26-2-016	VIRUS	sci	1.48	0.66	22.12	0.79			Yes
0014	LFC Cal	05:51	106.5			HPF	cal							Yes
lrs20000008_02	parallel	05:55	360			LRS2	sci							Yes
virus0000008_02	parallel	05:55	360	1.0	UT26-2-016	VIRUS	sci	1.56	0.69	22.11	0.77			Yes
lrs20000008_03	parallel	06:02	360			LRS2	sci							Yes
virus0000008_03	parallel	06:02	360	1.0	UT26-2-016	VIRUS	sci	1.67	0.69	22.06	0.79			Yes
0015	LFC Cal	06:15	106.5			HPF	cal							Yes
lrs20000009_01	parallel	06:15	360			LRS2	sci							Yes
virus0000009_01	parallel	06:15	360	7.0	UT26-2-016	VIRUS	sci	1.71	0.95	22.03	0.79			Yes
0016	LFC Cal	06:18	106.5			HPF	cal							Yes
lrs20000009_02	parallel	06:22	360			LRS2	sci							Yes
virus0000009_02	parallel	06:22	360	1.0	UT26-2-016	VIRUS	sci	1.68	0.88	21.99	0.76			Yes
lrs20000009_03	parallel	06:29	360			LRS2	sci							Yes
virus0000009_03	parallel	06:29	360	1.0	UT26-2-016	VIRUS	sci	1.83	0.94	21.89	0.73			Yes
lrs20000010_01	parallel	07:16	2400	3.0	UT26-2-003	LRS2-B	sci	1.53	0.99	20.88	0.82			Yes
virus0000010_01	parallel	07:16	2400			VIRUS	sci							Yes
0017	LFC Cal	07:17	106.5			HPF	cal							Yes
0018	LFC Cal	07:19	106.5			HPF	cal							Yes
0019	LFC Cal	07:21	106.5			HPF	cal							Yes
0020	parallel	08:04	308.9	7.9	UT26-2-005	HPF	sci	1.48	0.86	20.02	0.97	210		P4
virus0000011_01	parallel	08:04	1051			VIRUS	sci							Yes
0021	parallel	08:10	308.9	0.9	UT26-2-005	HPF	sci	1.50	0.94	20.00	0.99	205		P4
0022	parallel	08:16	308.9	0.9	UT26-2-005	HPF	sci	1.54	1.02	19.97	1.00	194		P4
lrs20000011_01	WD2341+322_056_E	08:27	180	6.0		LRS2	spec	1.66	1.13	19.96	0.71			Yes
0023	parallel	09:11	969.1	1.8	UT26-2-007	HPF	sci	1.56	1.04	20.33	1.00	37		Yes
virus0000012_01	parallel	09:11	2000			VIRUS	sci							Yes
0024	parallel	09:28	969.1	0.8	UT26-2-007	HPF	sci	1.59	1.59	20.36	0.99	34		Yes
0025	LFC Cal	09:51	106.5			HPF	cal							Yes
virus0000013_01	parallel	09:51	3000			VIRUS	sci							Yes
lrs20000012_01	parallel	09:51	120	6.0	PSU26-2-008	LRS2-B	sci	1.72	1.26	20.07	0.90		SSB would end up too bright with moon continuing to rise, aborted	No
0026	LFC Cal	09:54	106.5			HPF	cal							Yes
0027	LFC Cal	09:56	106.5			HPF	cal							Yes
0028	LFC Cal	09:58	106.5			HPF	cal							Yes
virus0000014_01	parallel	09:58	1200			VIRUS	sci							Yes
lrs20000013_01	parallel	09:58	1200	5.0	PSU26-2-004	LRS2-B	sci	1.42	1.06	20.90	0.90			Yes
0029	LFC Cal	10:01	106.5			HPF	cal							Yes
0030	LFC Cal	10:03	106.5			HPF	cal							Yes
virus0000015_01	parallel	10:24	2000			VIRUS	sci							Yes
0031	parallel	10:25	969.1	6.8	PSU26-2-015	HPF	sci	1.56	0.91	19.72	0.83	186		Yes
0032	parallel	10:42	969.1	0.8	PSU26-2-015	HPF	sci	1.52	0.93	19.38	0.83	177		Yes
0033	LFC Cal	11:00	106.5			HPF	cal							Yes
lrs20000014_01	bias	11:00	0			LRS2	cal							Yes
virus0000016_01	bias	11:01	0			VIRUS	cal							Yes
virus0000017_01	Cd-A	11:05	15		ENG26-2-002	VIRUS	cal							Yes
virus0000018_01	Hg	11:06	15		ENG26-2-002	VIRUS	cal							Yes
0034	Dark	11:14	319.5			HPF	cal							Yes
0035	Quartz FCU	11:25	74.5			HPF	cal							Yes
0036	Quartz FCU	11:27	74.5			HPF	cal							Yes
0037	Quartz FCU	11:29	74.5			HPF	cal							Yes
0038	Quartz FCU	11:31	74.5			HPF	cal							Yes
0039	Quartz FCU	11:32	74.5			HPF	cal							Yes
0040	Quartz FCU	11:34	74.5			HPF	cal							Yes
0041	Quartz FCU	11:36	74.5			HPF	cal							Yes
0042	Alpha Bright Cal	11:38	85.2			HPF	cal							Yes
0043	Alpha Bright Cal	11:40	85.2			HPF	cal							Yes
0044	Alpha Bright Cal	11:42	85.2			HPF	cal							Yes
0045	Alpha Bright Cal	11:44	85.2			HPF	cal							Yes
0046	LFC FCU	11:47	106.5			HPF	cal							Yes
0047	LFC FCU	11:49	106.5			HPF	cal							Yes
0048	LFC FCU	11:51	106.5			HPF	cal							Yes
0049	LFC FCU	11:54	106.5			HPF	cal							Yes
0050	LFC FCU	11:56	106.5			HPF	cal							Yes
0051	LFC FCU	11:58	106.5			HPF	cal							Yes
0052	LFC Cal	12:01	106.5			HPF	cal							Yes
0053	LFC Cal	12:04	106.5			HPF	cal							Yes
0054	Etalon Cal	12:11	159.8			HPF	cal							Yes
0055	Etalon Cal	12:15	159.8			HPF	cal							Yes
0056	Etalon Cal	12:18	159.8			HPF	cal							Yes
0057	Etalon Cal	12:21	159.8			HPF	cal							Yes
0058	UNe Slave Cal	12:24	426			HPF	cal							Yes
0059	UNe Slave Cal	12:32	426			HPF	cal							Yes
0060	UNe Slave Cal	12:40	426			HPF	cal							Yes
0061	UNe Slave Cal	12:48	426			HPF	cal							Yes
0062	UNe Slave Cal	12:56	426			HPF	cal							Yes
0063	UNe Slave Cal	13:03	426			HPF	cal							Yes
0126	LFC Cal	21:47	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	22:00	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:00	20			LRS2	cal							Yes
virus0009902_01	dark	22:02	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
0127	Dark	22:17	319.5			HPF	cal							Yes
0128	Quartz FCU	22:24	74.5			HPF	cal							Yes
0129	Quartz FCU	22:26	74.5			HPF	cal							Yes
0130	Quartz FCU	22:27	74.5			HPF	cal							Yes
0131	Quartz FCU	22:29	74.5			HPF	cal							Yes
0132	Quartz FCU	22:31	74.5			HPF	cal							Yes
0133	Quartz FCU	22:33	74.5			HPF	cal							Yes
0134	Quartz FCU	22:35	74.5			HPF	cal							Yes
0135	Alpha Bright Cal	22:37	85.2			HPF	cal							Yes
0136	Alpha Bright Cal	22:39	85.2			HPF	cal							Yes
0137	Alpha Bright Cal	22:41	85.2			HPF	cal							Yes
0138	Alpha Bright Cal	22:43	85.2			HPF	cal							Yes
0139	LFC FCU	22:45	106.5			HPF	cal							Yes
0140	LFC FCU	22:48	106.5			HPF	cal							Yes
0141	LFC Cal	22:51	106.5			HPF	cal							Yes
0142	LFC Cal	22:53	106.5			HPF	cal							Yes
0143	Etalon Cal	22:56	159.8			HPF	cal							Yes
0144	UNe Slave Cal	22:59	426			HPF	cal							Yes
lrs20000016_01	flat_Qth_R	23:01	15			LRS2	cal							Yes
lrs20000016_02	flat_Qth_R	23:02	15			LRS2	cal							Yes
lrs20000016_03	flat_Qth_R	23:04	15			LRS2	cal							Yes
lrs20000016_04	flat_Qth_R	23:05	15			LRS2	cal							Yes
lrs20000016_05	flat_Qth_R	23:06	15			LRS2	cal							Yes
0145	UNe Slave Cal	23:07	426			HPF	cal							Yes
lrs20000017_01	flat_ldls_long_B	23:07	20			LRS2	cal							Yes
lrs20000017_02	flat_ldls_long_B	23:09	20			LRS2	cal							Yes
lrs20000017_03	flat_ldls_long_B	23:10	20			LRS2	cal							Yes
lrs20000018_01	Cd-A_B	23:11	29			LRS2	cal							Yes
lrs20000018_02	Cd-A_B	23:13	29			LRS2	cal							Yes
lrs20000018_03	Cd-A_B	23:14	29			LRS2	cal							Yes
0146	UNe Slave Cal	23:15	426			HPF	cal							Yes
lrs20000019_01	FeAr_R	23:16	15			LRS2	cal							Yes
lrs20000019_02	FeAr_R	23:17	15			LRS2	cal							Yes
lrs20000019_03	FeAr_R	23:18	15			LRS2	cal							Yes
lrs20000020_01	Hg_R	23:19	20			LRS2	cal							Yes
lrs20000020_02	Hg_R	23:21	20			LRS2	cal							Yes
lrs20000020_03	Hg_R	23:22	20			LRS2	cal							Yes
0147	UNe Slave Cal	23:23	426			HPF	cal							Yes
lrs20000021_01	Hg_B	23:23	15			LRS2	cal							Yes
lrs20000021_02	Hg_B	23:24	15			LRS2	cal							Yes
lrs20000021_03	Hg_B	23:26	15			LRS2	cal							Yes
0148	UNe Slave Cal	23:30	426			HPF	cal							Yes
virus0000022_01	flat_ldls_long	23:32	15			VIRUS	cal							Yes
virus0000022_02	flat_ldls_long	23:34	15			VIRUS	cal							Yes
virus0000022_03	flat_ldls_long	23:35	15			VIRUS	cal							Yes
virus0000023_01	Cd-A	23:37	15			VIRUS	cal							Yes
0149	UNe Slave Cal	23:38	426			HPF	cal							Yes
virus0000023_02	Cd-A	23:38	15			VIRUS	cal							Yes
virus0000023_03	Cd-A	23:39	15			VIRUS	cal							Yes
virus0000024_01	Hg	23:41	15			VIRUS	cal							Yes
virus0000024_02	Hg	23:42	15			VIRUS	cal							Yes
virus0000024_03	Hg	23:43	15			VIRUS	cal							Yes
lrs20000022_01	bias	23:45	0			LRS2	cal							Yes
virus0000025_01	bias	23:45	0			VIRUS	cal							Yes
lrs20000022_02	bias	23:46	0			LRS2	cal							Yes
virus0000025_02	bias	23:46	0			VIRUS	cal							Yes
lrs20000022_03	bias	23:47	0			LRS2	cal							Yes
virus0000025_03	bias	23:47	0			VIRUS	cal							Yes
lrs20000022_04	bias	23:47	0			LRS2	cal							Yes
virus0000025_04	bias	23:48	0			VIRUS	cal							Yes
lrs20000022_05	bias	23:48	0			LRS2	cal							Yes
virus0000025_05	bias	23:49	0			VIRUS	cal							Yes
lrs20000022_06	bias	23:49	0			LRS2	cal							Yes
virus0000025_06	bias	23:49	0			VIRUS	cal							Yes
lrs20000022_07	bias	23:50	0			LRS2	cal							Yes
virus0000025_07	bias	23:50	0			VIRUS	cal							Yes
lrs20000022_08	bias	23:51	0			LRS2	cal							Yes
virus0000025_08	bias	23:51	0			VIRUS	cal							Yes
lrs20000022_09	bias	23:52	0			LRS2	cal							Yes
virus0000025_09	bias	23:52	0			VIRUS	cal							Yes
lrs20000022_10	bias	23:53	0			LRS2	cal							Yes
virus0000025_10	bias	23:53	0			VIRUS	cal							Yes
lrs20000022_11	bias	23:54	0			LRS2	cal							Yes
virus0000025_11	bias	23:54	0			VIRUS	cal							Yes
lrs20000023_01	dark	23:54	360			LRS2	cal							Yes
virus0000026_01	dark	23:55	360			VIRUS	cal							Yes

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