HET Night Report Reader

Civil Date	Ephemerides
2026-05-09	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:47	02:37	03:10	10:34	11:07	11:57	08:12	-
Night Length	7:24		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:45	22.8	18.5	11:09	twilight	09:24
Total Time Open					9:24

Program	Night Priority	Science
03:10	Science
06:59	Idle due to weather (Schedule gap ahead of full-track target)
07:06	Science
09:38	Idle due to weather (Poor IQ)
10:03	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:15	02:58	0.00	0.00	550	-573	22.7	21.1	20.3	126	3	First of Night
↪ Comments			Dome seeing suffered due to increasing temperature outside and inside dome. Strange behavior from HEFI where it would seemingly stop and return improbable EE50 and EE80 minimum values. Wouldn't respond to changing mirror or light source.
11:00	11:09	0.01	0.01	-200	+406	18.8	18.9	19.0	197	15	Post-Observing

Problem Reports					no PRs

Ops Comments	none

TO Comments	Cloudless night with sporadic seeing changes. DIMM Started on Arcturus, changed to Vega at ~10:00 UT.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	Dark	00:04	319.5			HPF	cal							Yes
0002	Quartz FCU	00:11	74.5			HPF	cal							Yes
0003	Quartz FCU	00:13	74.5			HPF	cal							Yes
0004	Quartz FCU	00:14	74.5			HPF	cal							Yes
0005	Quartz FCU	00:16	74.5			HPF	cal							Yes
0006	Quartz FCU	00:18	74.5			HPF	cal							Yes
0007	Quartz FCU	00:20	74.5			HPF	cal							Yes
0008	Quartz FCU	00:21	74.5			HPF	cal							Yes
0009	Alpha Bright Cal	00:24	85.2			HPF	cal							Yes
0010	Alpha Bright Cal	00:26	85.2			HPF	cal							Yes
0011	Alpha Bright Cal	00:28	85.2			HPF	cal							Yes
0012	Alpha Bright Cal	00:30	85.2			HPF	cal							Yes
0013	LFC FCU	00:32	106.5			HPF	cal							Yes
0014	LFC FCU	00:35	106.5			HPF	cal							Yes
0015	LFC Cal	00:38	106.5			HPF	cal							Yes
0016	LFC Cal	00:40	106.5			HPF	cal							Yes
0017	Etalon Cal	00:43	159.8			HPF	cal							Yes
0018	UNe Slave Cal	00:47	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:47	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:48	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:50	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:51	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:52	15			LRS2	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:53	20			LRS2	cal							Yes
0019	UNe Slave Cal	00:54	426			HPF	cal							Yes
lrs20000002_02	flat_ldls_long_B	00:55	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	00:56	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	00:57	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	00:59	29			LRS2	cal							Yes
lrs20000003_03	Cd-A_B	01:00	29			LRS2	cal							Yes
0020	UNe Slave Cal	01:02	426			HPF	cal							Yes
lrs20000004_01	FeAr_R	01:02	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	01:03	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	01:04	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	01:05	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	01:07	20			LRS2	cal							Yes
lrs20000005_03	Hg_R	01:08	20			LRS2	cal							Yes
lrs20000006_01	Hg_B	01:09	15			LRS2	cal							Yes
0021	UNe Slave Cal	01:10	426			HPF	cal							Yes
lrs20000006_02	Hg_B	01:10	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	01:12	15			LRS2	cal							Yes
0022	UNe Slave Cal	01:18	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	01:18	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	01:20	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	01:21	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	01:22	15			VIRUS	cal							Yes
virus0000002_02	Cd-A	01:24	15			VIRUS	cal							Yes
0023	UNe Slave Cal	01:25	426			HPF	cal							Yes
virus0000002_03	Cd-A	01:25	15			VIRUS	cal							Yes
virus0000003_01	Hg	01:27	15			VIRUS	cal							Yes
virus0000003_02	Hg	01:28	15			VIRUS	cal							Yes
virus0000003_03	Hg	01:29	15			VIRUS	cal							Yes
lrs20000007_01	bias	01:31	0			LRS2	cal							Yes
virus0000004_01	bias	01:31	0			VIRUS	cal							Yes
lrs20000007_02	bias	01:32	0			LRS2	cal							Yes
lrs20000007_03	bias	01:32	0			LRS2	cal							Yes
virus0000004_02	bias	01:32	0			VIRUS	cal							Yes
virus0000004_03	bias	01:33	0			VIRUS	cal							Yes
lrs20000007_04	bias	01:33	0			LRS2	cal							Yes
virus0000004_04	bias	01:34	0			VIRUS	cal							Yes
lrs20000007_05	bias	01:34	0			LRS2	cal							Yes
virus0000004_05	bias	01:34	0			VIRUS	cal							Yes
lrs20000007_06	bias	01:35	0			LRS2	cal							Yes
virus0000004_06	bias	01:35	0			VIRUS	cal							Yes
lrs20000007_07	bias	01:36	0			LRS2	cal							Yes
virus0000004_07	bias	01:36	0			VIRUS	cal							Yes
lrs20000007_08	bias	01:37	0			LRS2	cal							Yes
virus0000004_08	bias	01:37	0			VIRUS	cal							Yes
lrs20000007_09	bias	01:38	0			LRS2	cal							Yes
virus0000004_09	bias	01:38	0			VIRUS	cal							Yes
lrs20000007_10	bias	01:38	0			LRS2	cal							Yes
virus0000004_10	bias	01:39	0			VIRUS	cal							Yes
lrs20000007_11	bias	01:39	0			LRS2	cal							Yes
virus0000004_11	bias	01:40	0			VIRUS	cal							Yes
lrs20000008_01	skyflat	01:52	7			LRS2	cal							Yes
lrs20000009_01	skyflat	01:54	10			LRS2	cal							Yes
lrs20000010_01	skyflat	01:55	13			LRS2	cal							Yes
lrs20000011_01	skyflat	01:56	16			LRS2	cal							Yes
lrs20000012_01	skyflat	01:57	22			LRS2	cal							Yes
lrs20000013_01	skyflat	01:58	30			LRS2	cal							Yes
virus0000005_01	skyflat	02:02	7			VIRUS	cal							Yes
virus0000006_01	skyflat	02:03	10			VIRUS	cal							Yes
virus0000007_01	skyflat	02:04	14			VIRUS	cal							Yes
virus0000008_01	skyflat	02:06	18			VIRUS	cal							Yes
virus0000009_01	skyflat	02:07	26			VIRUS	cal							Yes
0024	LFC Cal	03:13	106.5			HPF	cal							Yes
lrs20000014_01	parallel	03:13	1000			LRS2	sci							Yes
virus0000010_01	QID 237	03:13	1000	9.3	PSU26-2-003	VIRUS	sci	1.68	1.10	21.88	1.01			Yes
0025	LFC Cal	03:16	106.5			HPF	cal							Yes
0026	LFC Cal	03:18	106.5			HPF	cal							Yes
lrs20000014_02	parallel	03:31	1000			LRS2	sci							Yes
virus0000010_02	QID 237	03:31	1000	1.3	PSU26-2-003	VIRUS	sci	1.85	1.03	21.87	1.02			Yes
lrs20000014_03	parallel	03:49	1000			LRS2	sci							Yes
virus0000010_03	QID 237	03:49	1000	1.3	PSU26-2-003	VIRUS	sci	2.21	2.00	21.84	1.00			Yes
0027	LFC Cal	04:12	106.5			HPF	cal							Yes
virus0000011_01	parallel	04:12	1800			VIRUS	sci							Yes
lrs20000015_01	QID 463	04:12	1800	6.0	UT26-2-018	LRS2-B	sci	1.78	1.21	21.95	0.94			Yes
0028	LFC Cal	04:15	106.5			HPF	cal							Yes
0029	LFC Cal	04:17	106.5			HPF	cal							Yes
0030	LFC Cal	04:46	106.5			HPF	cal							Yes
virus0000012_01	parallel	04:46	900			VIRUS	sci							Yes
lrs20000016_01	QID 464	04:46	900	4.0	UT26-2-018	LRS2-R	sci	1.65	1.00	21.02	1.10			Yes
0031	LFC Cal	04:48	106.5			HPF	cal							Yes
0032	LFC Cal	04:51	106.5			HPF	cal							Yes
virus0000013_01	P177D_052_E	05:05	60	4.0		VIRUS	spec	1.63	1.05	22.13	0.77			Yes
virus0000013_02	P177D_052_E	05:07	60	1.0		VIRUS	spec	1.71	1.06	22.12	0.77			Yes
virus0000013_03	P177D_052_E	05:09	60	1.0		VIRUS	spec	1.71	1.13	22.11	0.76			Yes
lrs20000017_01	FEIGE34_056_W	05:16	60	6.0		LRS2	spec	1.85	1.45	21.80	0.96			Yes
lrs20000018_01	FEIGE34_066_W	05:19	60	2.0		LRS2	spec	1.74	1.37	20.90	0.91			Yes
0033	LFC Cal	05:27	106.5			HPF	cal							Yes
virus0000014_01	parallel	05:27	1800			VIRUS	sci							Yes
lrs20000019_01	QID 451	05:27	1800	7.0	UT26-2-018	LRS2-B	sci	1.85	1.46	21.88	0.89			Yes
0034	LFC Cal	05:29	106.5			HPF	cal							Yes
0035	LFC Cal	05:32	106.5			HPF	cal							Yes
0036	LFC Cal	06:01	106.5			HPF	cal							Yes
virus0000015_01	parallel	06:01	900			VIRUS	sci							Yes
lrs20000020_01	QID 452	06:01	900	4.0	UT26-2-018	LRS2-R	sci	1.56	1.16	20.91	0.92			Yes
0037	LFC Cal	06:03	106.5			HPF	cal							Yes
0038	LFC Cal	06:06	106.5			HPF	cal							Yes
0039	HR6533_tell_std	06:27	117.2	11.0		HPF	telluric	2.15	1.21	20.73	0.88			Yes
0040	LFC Cal	06:35	106.5			HPF	cal							Yes
lrs20000021_01	QID 627	06:35	180	6.0	PSU26-2-001	LRS2-R	sci	1.80	1.28	21.02	1.06			P4
0041	QID 79	06:47	42.6	9.3	UT26-2-019	HPF	sci	1.80	1.19	20.42	0.84	517		P4
0042	LFC Cal	06:49	106.5			HPF	cal							Yes
lrs20000022_01	QID 616	06:54	300	6.0	PSU26-2-001	LRS2-R	sci	1.53	1.13	21.02	1.06			P4
virus0000016_01	parallel	06:54	300			VIRUS	sci							Yes
0043	LFC Cal	06:55	106.5			HPF	cal							Yes
0044	LFC Cal	06:57	106.5			HPF	cal							Yes
0045	QID 863	07:10	841.4	4.0	UT26-2-009	HPF	sci	1.56	1.03	20.14	0.93	41		Yes
virus0000017_01	parallel	07:10	4526			VIRUS	sci							Yes
0046	QID 863	07:25	841.4	1.0	UT26-2-009	HPF	sci	1.58	1.04	20.33	0.88	50		Yes
0047	QID 863	07:40	841.4	1.0	UT26-2-009	HPF	sci	1.49	1.36	20.31	0.90	50		Yes
0048	QID 863	07:55	841.4	1.0	UT26-2-009	HPF	sci	1.55	1.25	20.41	0.76	39		Yes
0049	QID 860	08:18	575.1	9.4	UT26-2-009	HPF	sci	1.64	1.38	20.18	0.77	88		Yes
virus0000018_01	parallel	08:18	1233			VIRUS	sci							Yes
0050	QID 860	08:29	575.1	0.4	UT26-2-009	HPF	sci	1.61	1.33	20.13	0.79	91		Yes
0051	LFC Cal	08:44	106.5			HPF	cal							Yes
virus0000019_01	parallel	08:44	600			VIRUS	sci							Yes
lrs20000023_01	QID 892	08:44	600	6.0	PSU26-2-004	LRS2-B	sci	1.85	1.23	20.85	0.99			Yes
0052	LFC Cal	08:47	106.5			HPF	cal							Yes
0053	LFC Cal	08:49	106.5			HPF	cal							Yes
0054	QID 867	09:00	724.2	5.9	UT26-2-009	HPF	sci	1.77	1.36	20.11	0.98	55		Yes
virus0000020_01	parallel	09:00	2347			VIRUS	sci							Yes
0055	QID 867	09:13	724.2	0.9	UT26-2-009	HPF	sci	1.87	1.67	20.08	0.98	62		Yes
0056	QID 867	09:26	724.2	0.9	UT26-2-009	HPF	sci	1.90	1.91	20.08	0.96	62		Yes
virus0000021_01	parallel	09:45	300			VIRUS	sci							Yes
0057	LFC Cal	09:46	106.5			HPF	cal							Yes
lrs20000024_01	QID 885	09:46	300	8.0	PSU26-2-004	LRS2-B	sci	2.25	1.94	20.72	0.83		Poor image quality, seeing degraded throughout exposures.	No
0058	LFC Cal	09:48	106.5			HPF	cal							Yes
virus0000021_02	parallel	09:52	300			VIRUS	sci							Yes
lrs20000024_02	QID 885	09:52	300	1.0	PSU26-2-004	LRS2-B	sci	2.34	2.04	20.71	0.84			No
virus0000021_03	parallel	09:58	300			VIRUS	sci							Yes
lrs20000024_03	QID 885	09:58	300	1.0	PSU26-2-004	LRS2-B	sci	2.40	1.67	20.71	0.85			No
virus0000022_01	parallel	10:13	374			VIRUS	sci							Yes
0059	QID 629	10:14	340.8	11.3	PSU26-2-014	HPF	sci	1.97	1.42	20.15	1.00	434		P4
lrs20000025_01	QID 10	10:25	1500	5.0	PSU26-2-005	LRS2-B	sci	1.95	1.64	21.00	0.92			Yes
virus0000023_01	parallel	10:25	1500			VIRUS	sci							Yes
0060	LFC Cal	10:26	106.5			HPF	cal							Yes
0061	LFC Cal	10:28	106.5			HPF	cal							Yes
0062	LFC Cal	10:30	106.5			HPF	cal							Yes
virus0000024_01	parallel	10:55	300			VIRUS	sci							Yes
lrs20000026_01	QID 587	10:55	300	5.0	PSU26-2-001	LRS2-R	sci	1.80	1.27	20.32	0.97			P4
0063	LFC Cal	10:56	106.5			HPF	cal							Yes
0064	LFC Cal	10:58	106.5			HPF	cal							Yes
lrs20000027_01	bias	11:02	0			LRS2	cal							Yes
virus0000025_01	bias	11:02	0			VIRUS	cal							Yes
virus0000026_01	Cd-A	11:07	15		ENG26-2-002	VIRUS	cal							Yes
virus0000027_01	Hg	11:08	15		ENG26-2-002	VIRUS	cal							Yes
lrs20000028_01	dark	11:16	5			LRS2	cal							Yes
virus0000028_01	dark	11:16	5			VIRUS	cal							Yes
0065	Dark	11:19	319.5			HPF	cal							Yes
0066	Quartz FCU	11:30	74.5			HPF	cal							Yes
0067	Quartz FCU	11:32	74.5			HPF	cal							Yes
0068	Quartz FCU	11:34	74.5			HPF	cal							Yes
0069	Quartz FCU	11:36	74.5			HPF	cal							Yes
0070	Quartz FCU	11:37	74.5			HPF	cal							Yes
0071	Quartz FCU	11:39	74.5			HPF	cal							Yes
0072	Quartz FCU	11:41	74.5			HPF	cal							Yes
0073	Alpha Bright Cal	11:43	85.2			HPF	cal							Yes
0074	Alpha Bright Cal	11:45	85.2			HPF	cal							Yes
0075	Alpha Bright Cal	11:47	85.2			HPF	cal							Yes
0076	Alpha Bright Cal	11:49	85.2			HPF	cal							Yes
0077	LFC FCU	11:52	106.5			HPF	cal							Yes
0078	LFC FCU	11:54	106.5			HPF	cal							Yes
0079	LFC FCU	11:56	106.5			HPF	cal							Yes
0080	LFC FCU	11:59	106.5			HPF	cal							Yes
0081	LFC FCU	12:01	106.5			HPF	cal							Yes
0082	LFC FCU	12:03	106.5			HPF	cal							Yes
0083	LFC Cal	12:06	106.5			HPF	cal							Yes
0084	LFC Cal	12:08	106.5			HPF	cal							Yes
lrs20000029_01	dark	12:10	360			LRS2	cal							Yes
virus0000029_01	dark	12:10	360			VIRUS	cal							Yes
0085	Etalon Cal	12:16	159.8			HPF	cal							Yes
lrs20000029_02	dark	12:17	360			LRS2	cal							Yes
virus0000029_02	dark	12:17	360			VIRUS	cal							Yes
0086	Etalon Cal	12:19	159.8			HPF	cal							Yes
0087	Etalon Cal	12:23	159.8			HPF	cal							Yes
lrs20000029_03	dark	12:23	360			LRS2	cal							Yes
virus0000029_03	dark	12:24	360			VIRUS	cal							Yes
0088	Etalon Cal	12:26	159.8			HPF	cal							Yes
0089	UNe Slave Cal	12:29	426			HPF	cal							Yes
0090	UNe Slave Cal	12:37	426			HPF	cal							Yes
0091	UNe Slave Cal	12:45	426			HPF	cal							Yes
0092	UNe Slave Cal	12:53	426			HPF	cal							Yes
0093	UNe Slave Cal	13:00	426			HPF	cal							Yes
0094	UNe Slave Cal	13:08	426			HPF	cal							Yes
0068	LFC Cal	23:42	106.5			HPF	cal							Yes
lrs20009900_01	bias	23:48	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	23:48	20			VIRUS	cal							Yes
virus0009901_01	bias	23:50	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:51	20			LRS2	cal							Yes
virus0009902_01	dark	23:52	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:53	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:54	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:56	15			LRS2	cal							Yes

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