HET Night Report Reader

Civil Date	Ephemerides
2026-05-15	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:51	02:42	03:15	10:28	11:02	11:53	11:34	-
Night Length	7:13		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:50	24.0	23.8	10:42	twilight	08:52
Total Time Open					8:52

Program	Night Priority	Science
03:15	Engineering (hpf)
05:41	Idle due to weather (clouds)
06:10	Science
06:34	Engineering (hpf)
08:00	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:38	03:57	0.01	0.01	-385	-131	23.2	23.2	23.2	305	14	First of Night
↪ Comments			Stacking practice
10:32	10:42	0.11	0.15	-280	+697	18.8	19.9	20.1	315	21	Post-Observing

Problem Reports					no PRs

Ops Comments	none

TO Comments	DIMM switched from Arcturus to Vega at 09:00 UT.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000001_01	skyflat	01:57	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:58	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:59	13			LRS2	cal							Yes
lrs20000004_01	skyflat	02:00	16			LRS2	cal							Yes
lrs20000005_01	skyflat	02:02	22			LRS2	cal							Yes
lrs20000006_01	skyflat	02:03	30			LRS2	cal							Yes
virus0000001_01	skyflat	02:06	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:08	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:09	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:10	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:12	26			VIRUS	cal							Yes
virus0000006_01	parallel	04:05	2161			VIRUS	eng							Yes
0001	Ross_128	04:06	394.1	8.4	ENG26-2-000	HPF	eng	1.82	0.85	21.11	0.98	318		Yes
0002	Ross_128	04:13	394.1	0.4	ENG26-2-000	HPF	eng	1.82	1.03	21.05	0.87	333		Yes
0003	Ross_128	04:20	394.1	1.4	ENG26-2-000	HPF	eng	1.70	0.98	21.00	0.99	430		Yes
0004	Ross_128	04:27	394.1	0.4	ENG26-2-000	HPF	eng	1.61	0.88	20.98	1.00	420		Yes
0005	Ross_128	04:34	394.1	0.4	ENG26-2-000	HPF	eng	1.55	0.85	21.02	0.95	393		Yes
0006	LFC Cal	04:42	106.5			HPF	cal							Yes
0007	GJ_411	04:48	74.5	7.8	ENG26-2-000	HPF	eng	1.63	0.96	20.82	0.91	528		Yes
virus0000007_01	parallel	04:48	3811			VIRUS	eng							Yes
0008	GJ_411	04:50	74.5	-0.2	ENG26-2-000	HPF	eng	1.66	0.89	20.83	0.91	519		Yes
0009	GJ_411	04:52	74.5	0.8	ENG26-2-000	HPF	eng	1.65	0.90	20.85	0.91	523		Yes
0010	GJ_411	04:54	74.5	0.8	ENG26-2-000	HPF	eng	1.62	0.83	20.80	0.92	544		Yes
0011	GJ_411	04:55	74.5	0.8	ENG26-2-000	HPF	eng	1.51	0.82	20.77	0.91	568		Yes
0012	GJ_411	04:57	74.5	-0.2	ENG26-2-000	HPF	eng	1.51	0.96	20.75	0.92	581		Yes
0013	GJ_411	04:59	74.5	0.8	ENG26-2-000	HPF	eng	1.57	0.84	20.70	0.92	572		Yes
0014	GJ_411	05:01	74.5	0.8	ENG26-2-000	HPF	eng	1.54	0.94	20.70	0.92	595		Yes
0015	GJ_411	05:02	74.5	0.8	ENG26-2-000	HPF	eng	1.53	0.90	20.72	0.92	583		Yes
0016	GJ_411	05:04	74.5	-0.2	ENG26-2-000	HPF	eng	1.57	0.95	20.70	0.93	602		Yes
0017	GJ_411	05:06	74.5	0.8	ENG26-2-000	HPF	eng	1.58	0.89	20.68	0.93	593		Yes
0018	GJ_411	05:08	74.5	0.8	ENG26-2-000	HPF	eng	1.59	0.86	20.67	0.94	612		Yes
0019	GJ_411	05:10	74.5	0.8	ENG26-2-000	HPF	eng	1.51	0.85	20.65	0.94	616		Yes
0020	GJ_411	05:11	74.5	0.8	ENG26-2-000	HPF	eng	1.50	0.90	20.61	0.94	610		Yes
0021	GJ_411	05:13	74.5	-0.2	ENG26-2-000	HPF	eng	1.50	0.95	20.61	0.95	607		Yes
0022	GJ_411	05:15	74.5	0.8	ENG26-2-000	HPF	eng	1.54	0.81	20.61	0.95	608		Yes
0023	GJ_411	05:17	74.5	0.8	ENG26-2-000	HPF	eng	1.49	0.93	20.66	0.94	608		Yes
0024	GJ_411	05:18	74.5	0.8	ENG26-2-000	HPF	eng	1.46	0.91	20.64	0.94	604		Yes
0025	GJ_411	05:20	74.5	-0.2	ENG26-2-000	HPF	eng	1.48	0.92	20.66	0.94	588		Yes
0026	GJ_411	05:22	74.5	0.8	ENG26-2-000	HPF	eng	1.48	0.97	20.66	0.93	580		Yes
0027	GJ_411	05:24	74.5	0.8	ENG26-2-000	HPF	eng	1.48	1.04	20.69	0.92	568		Yes
0028	GJ_411	05:26	74.5	0.8	ENG26-2-000	HPF	eng	1.45	1.00	20.70	0.92	570		Yes
0029	GJ_411	05:27	74.5	0.8	ENG26-2-000	HPF	eng	1.44	0.92	20.71	0.91	569		Yes
0030	GJ_411	05:29	74.5	-0.2	ENG26-2-000	HPF	eng	1.47	0.89	20.71	0.92	548		Yes
0031	GJ_411	05:31	74.5	0.8	ENG26-2-000	HPF	eng	1.46	0.76	20.69	0.91	536		Yes
0032	GJ_411	05:33	74.5	0.8	ENG26-2-000	HPF	eng	1.45	0.78	20.67	0.89	524		Yes
0033	GJ_411	05:34	74.5	0.8	ENG26-2-000	HPF	eng	1.44	0.79	20.65	0.89	521		Yes
0034	GJ_411	05:36	74.5	-0.2	ENG26-2-000	HPF	eng	1.41	0.79	20.64	0.88	511		Yes
0035	GJ_411	05:38	74.5	0.8	ENG26-2-000	HPF	eng	1.35	0.77	20.64	0.86	476		Yes
0036	GJ_411	05:40	74.5	0.8	ENG26-2-000	HPF	eng	1.35	0.90	20.63	0.85	488		Yes
0037	LFC Cal	05:42	106.5			HPF	cal							Yes
0038	LFC Cal	06:14	106.5			HPF	cal							Yes
virus0000008_01	parallel	06:14	1200			VIRUS	sci							Yes
lrs20000007_01	QID 470	06:14	1200	4.0	UT26-2-008	LRS2-B	sci	1.67	0.81	22.03	0.79			Yes
0039	LFC Cal	06:16	106.5			HPF	cal							Yes
0040	LFC Cal	06:19	106.5			HPF	cal							Yes
virus0000009_01	parallel	06:40	2047			VIRUS	eng							Yes
0041	GJ_1214	06:41	969.1	6.8	ENG26-2-000	HPF	eng	1.59	1.19	20.17	0.94	138		Yes
0042	GJ_1214	06:58	969.1	0.8	ENG26-2-000	HPF	eng	1.58	0.94	20.20	0.94	140		Yes
0043	LFC Cal	07:16	106.5			HPF	cal							Yes
virus0000010_01	parallel	07:20	2391			VIRUS	eng							Yes
0044	GJ_699	07:21	202.3	6.6	ENG26-2-000	HPF	eng	1.78	0.86	20.46	0.85	461		Yes
0045	GJ_699	07:25	202.3	0.6	ENG26-2-000	HPF	eng	1.78	0.82	20.46	0.90	480		Yes
0046	GJ_699	07:29	202.3	0.6	ENG26-2-000	HPF	eng	1.67	0.74	20.45	0.95	534		Yes
0047	GJ_699	07:33	202.3	0.6	ENG26-2-000	HPF	eng	1.66	0.73	20.43	0.96	548		Yes
0048	GJ_699	07:37	202.3	0.6	ENG26-2-000	HPF	eng	1.68	0.86	20.45	0.96	556		Yes
0049	GJ_699	07:41	202.3	0.6	ENG26-2-000	HPF	eng	1.74	0.94	20.48	0.95	520		Yes
0050	GJ_699	07:45	202.3	0.6	ENG26-2-000	HPF	eng	1.74	0.89	20.51	0.95	516		Yes
0051	GJ_699	07:49	202.3	0.6	ENG26-2-000	HPF	eng	1.76	0.69	20.50	0.96	477		Yes
0052	GJ_699	07:53	202.3	0.6	ENG26-2-000	HPF	eng	1.70	0.72	20.46	0.98	460		Yes
0053	GJ_699	07:57	202.3	0.6	ENG26-2-000	HPF	eng	1.67	0.72	20.39	1.00	446		Yes
0054	LFC Cal	08:01	106.5			HPF	cal							Yes
0055	QID 109	08:08	969.1	8.8	UT26-2-019	HPF	sci	1.65	0.98	20.33	0.90	336		Yes
virus0000011_01	parallel	08:08	1023			VIRUS	sci							Yes
0056	LFC Cal	08:26	106.5			HPF	cal							Yes
virus0000012_01	parallel	08:31	3646			VIRUS	sci							Yes
0057	QID 863	08:32	841.4	7.0	UT26-2-009	HPF	sci	1.66	0.83	20.32	1.09	36		Yes
0058	QID 863	08:47	841.4	1.0	UT26-2-009	HPF	sci	1.60	0.71	20.30	1.11	46		Yes
0059	QID 863	09:02	841.4	1.0	UT26-2-009	HPF	sci	1.69	1.09	20.26	1.08	38		Yes
0060	QID 863	09:17	841.4	1.0	UT26-2-009	HPF	sci	1.66	0.84	20.33	0.96	28		Yes
lrs20000008_01	parallel	09:37	360			LRS2	sci							Yes
virus0000013_01	QID 576	09:37	360	6.0	UT26-2-016	VIRUS	sci	2.06	1.09	21.92				Yes
0061	LFC Cal	09:38	106.5			HPF	cal							Yes
0062	LFC Cal	09:40	106.5			HPF	cal							Yes
lrs20000008_02	parallel	09:44	360			LRS2	sci							Yes
virus0000013_02	QID 576	09:44	360	1.0	UT26-2-016	VIRUS	sci	2.14	1.17	22.02				Yes
lrs20000008_03	parallel	09:52	360			LRS2	sci							Yes
virus0000013_03	QID 576	09:52	360	2.0	UT26-2-016	VIRUS	sci	2.31	1.44	21.69	0.35		Had issues with transparency reading. Likely much higher. Estimate 0.85.	Yes
0063	LFC Cal	10:02	106.5			HPF	cal							Yes
lrs20000009_01	parallel	10:02	360			LRS2	sci							Yes
virus0000014_01	QID 574	10:02	360	4.0	UT26-2-016	VIRUS	sci	2.16	0.97	22.07	0.96			Yes
0064	LFC Cal	10:05	106.5			HPF	cal							Yes
lrs20000009_02	parallel	10:09	360			LRS2	sci							Yes
virus0000014_02	QID 574	10:09	360	1.0	UT26-2-016	VIRUS	sci	2.05	0.94	22.02	0.92			Yes
lrs20000009_03	parallel	10:16	360			LRS2	sci							Yes
virus0000014_03	QID 574	10:16	360	1.0	UT26-2-016	VIRUS	sci	2.03	1.44	22.05	0.88			Yes
0065	HR8246_tell_std	10:30	117.2	8.0		HPF	telluric	1.91	0.88	20.07	0.92			Yes
lrs20000010_01	bias	10:35	0			LRS2	cal							Yes
virus0000015_01	bias	10:36	0			VIRUS	cal							Yes
virus0000016_01	Cd-A	10:40	15		ENG26-2-002	VIRUS	cal							Yes
virus0000017_01	Hg	10:41	15		ENG26-2-002	VIRUS	cal							Yes
0066	Dark	10:49	319.5			HPF	cal							Yes
0067	Quartz FCU	11:00	74.5			HPF	cal							Yes
0068	Quartz FCU	11:02	74.5			HPF	cal							Yes
0069	Quartz FCU	11:04	74.5			HPF	cal							Yes
0070	Quartz FCU	11:05	74.5			HPF	cal							Yes
0071	Quartz FCU	11:07	74.5			HPF	cal							Yes
0072	Quartz FCU	11:09	74.5			HPF	cal							Yes
0073	Quartz FCU	11:11	74.5			HPF	cal							Yes
0074	Alpha Bright Cal	11:13	85.2			HPF	cal							Yes
0075	Alpha Bright Cal	11:15	85.2			HPF	cal							Yes
0076	Alpha Bright Cal	11:17	85.2			HPF	cal							Yes
0077	Alpha Bright Cal	11:19	85.2			HPF	cal							Yes
0078	LFC FCU	11:22	106.5			HPF	cal							Yes
0079	LFC FCU	11:24	106.5			HPF	cal							Yes
0080	LFC FCU	11:26	106.5			HPF	cal							Yes
0081	LFC FCU	11:29	106.5			HPF	cal							Yes
0082	LFC FCU	11:31	106.5			HPF	cal							Yes
0083	LFC FCU	11:33	106.5			HPF	cal							Yes
0084	LFC Cal	11:36	106.5			HPF	cal							Yes
0085	LFC Cal	11:39	106.5			HPF	cal							Yes
0086	Etalon Cal	11:46	159.8			HPF	cal							Yes
0087	Etalon Cal	11:50	159.8			HPF	cal							Yes
0088	Etalon Cal	11:53	159.8			HPF	cal							Yes
0089	Etalon Cal	11:56	159.8			HPF	cal							Yes
0090	UNe Slave Cal	11:59	426			HPF	cal							Yes
0091	UNe Slave Cal	12:07	426			HPF	cal							Yes
0092	UNe Slave Cal	12:15	426			HPF	cal							Yes
0093	UNe Slave Cal	12:23	426			HPF	cal							Yes
0094	UNe Slave Cal	12:31	426			HPF	cal							Yes
0095	UNe Slave Cal	12:38	426			HPF	cal							Yes
0048	LFC Cal	21:46	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:54	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:54	20			VIRUS	cal							Yes
virus0009901_01	bias	21:56	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:56	20			LRS2	cal							Yes
virus0009902_01	dark	21:58	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:59	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:00	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:02	15			LRS2	cal							Yes
0049	Dark	22:07	319.5			HPF	cal							Yes
0050	Quartz FCU	22:14	74.5			HPF	cal							Yes
0051	Quartz FCU	22:16	74.5			HPF	cal							Yes
0052	Quartz FCU	22:17	74.5			HPF	cal							Yes
0053	Quartz FCU	22:19	74.5			HPF	cal							Yes
0054	Quartz FCU	22:21	74.5			HPF	cal							Yes
0055	Quartz FCU	22:23	74.5			HPF	cal							Yes
0056	Quartz FCU	22:24	74.5			HPF	cal							Yes
0057	Alpha Bright Cal	22:27	85.2			HPF	cal							Yes
0058	Alpha Bright Cal	22:29	85.2			HPF	cal							Yes
0059	Alpha Bright Cal	22:31	85.2			HPF	cal							Yes
0060	Alpha Bright Cal	22:33	85.2			HPF	cal							Yes
0061	LFC FCU	22:35	106.5			HPF	cal							Yes
0062	LFC FCU	22:38	106.5			HPF	cal							Yes
0063	LFC Cal	22:40	106.5			HPF	cal							Yes
0064	LFC Cal	22:43	106.5			HPF	cal							Yes
0065	Etalon Cal	22:45	159.8			HPF	cal							Yes
0066	UNe Slave Cal	22:49	426			HPF	cal							Yes
lrs20000011_01	flat_Qth_R	22:51	15			LRS2	cal							Yes
lrs20000011_02	flat_Qth_R	22:52	15			LRS2	cal							Yes
lrs20000011_03	flat_Qth_R	22:54	15			LRS2	cal							Yes
lrs20000011_04	flat_Qth_R	22:55	15			LRS2	cal							Yes
lrs20000011_05	flat_Qth_R	22:56	15			LRS2	cal							Yes
0067	UNe Slave Cal	22:57	426			HPF	cal							Yes
lrs20000012_01	flat_ldls_long_B	22:57	20			LRS2	cal							Yes
lrs20000012_02	flat_ldls_long_B	22:59	20			LRS2	cal							Yes
lrs20000012_03	flat_ldls_long_B	23:00	20			LRS2	cal							Yes
lrs20000013_01	Cd-A_B	23:01	29			LRS2	cal							Yes
lrs20000013_02	Cd-A_B	23:03	29			LRS2	cal							Yes
lrs20000013_03	Cd-A_B	23:04	29			LRS2	cal							Yes
0068	UNe Slave Cal	23:05	426			HPF	cal							Yes
lrs20000014_01	FeAr_R	23:06	15			LRS2	cal							Yes
lrs20000014_02	FeAr_R	23:07	15			LRS2	cal							Yes
lrs20000014_03	FeAr_R	23:08	15			LRS2	cal							Yes
lrs20000015_01	Hg_R	23:09	20			LRS2	cal							Yes
lrs20000015_02	Hg_R	23:11	20			LRS2	cal							Yes
lrs20000015_03	Hg_R	23:12	20			LRS2	cal							Yes
0069	UNe Slave Cal	23:13	426			HPF	cal							Yes
lrs20000016_01	Hg_B	23:13	15			LRS2	cal							Yes
lrs20000016_02	Hg_B	23:15	15			LRS2	cal							Yes
lrs20000016_03	Hg_B	23:16	15			LRS2	cal							Yes
0070	UNe Slave Cal	23:20	426			HPF	cal							Yes
virus0000013_01	flat_ldls_long	23:22	15			VIRUS	cal							Yes
virus0000013_02	flat_ldls_long	23:24	15			VIRUS	cal							Yes
virus0000013_03	flat_ldls_long	23:25	15			VIRUS	cal							Yes
virus0000014_01	Cd-A	23:27	15			VIRUS	cal							Yes
0071	UNe Slave Cal	23:28	426			HPF	cal							Yes
virus0000014_02	Cd-A	23:28	15			VIRUS	cal							Yes
virus0000014_03	Cd-A	23:29	15			VIRUS	cal							Yes
virus0000015_01	Hg	23:31	15			VIRUS	cal							Yes
virus0000015_02	Hg	23:32	15			VIRUS	cal							Yes
virus0000015_03	Hg	23:34	15			VIRUS	cal							Yes
lrs20000017_01	bias	23:35	0			LRS2	cal							Yes
virus0000016_01	bias	23:35	0			VIRUS	cal							Yes
lrs20000017_02	bias	23:36	0			LRS2	cal							Yes
virus0000016_02	bias	23:36	0			VIRUS	cal							Yes
lrs20000017_03	bias	23:37	0			LRS2	cal							Yes
virus0000016_03	bias	23:37	0			VIRUS	cal							Yes
lrs20000017_04	bias	23:38	0			LRS2	cal							Yes
virus0000016_04	bias	23:38	0			VIRUS	cal							Yes
lrs20000017_05	bias	23:38	0			LRS2	cal							Yes
virus0000016_05	bias	23:39	0			VIRUS	cal							Yes
lrs20000017_06	bias	23:39	0			LRS2	cal							Yes
virus0000016_06	bias	23:40	0			VIRUS	cal							Yes
lrs20000017_07	bias	23:40	0			LRS2	cal							Yes
virus0000016_07	bias	23:40	0			VIRUS	cal							Yes
lrs20000017_08	bias	23:41	0			LRS2	cal							Yes
virus0000016_08	bias	23:41	0			VIRUS	cal							Yes
lrs20000017_09	bias	23:42	0			LRS2	cal							Yes
virus0000016_09	bias	23:42	0			VIRUS	cal							Yes
lrs20000017_10	bias	23:43	0			LRS2	cal							Yes
virus0000016_10	bias	23:43	0			VIRUS	cal							Yes
lrs20000017_11	bias	23:44	0			LRS2	cal							Yes
virus0000016_11	bias	23:44	0			VIRUS	cal							Yes
lrs20000018_01	dark	23:45	360			LRS2	cal							Yes
virus0000017_01	dark	23:45	360			VIRUS	cal							Yes
lrs20000018_02	dark	23:51	360			LRS2	cal							Yes
virus0000017_02	dark	23:52	360			VIRUS	cal							Yes
lrs20000018_03	dark	23:58	360			LRS2	cal							Yes
virus0000017_03	dark	23:59	360			VIRUS	cal							Yes

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