HET Night Report Reader

Civil Date	Ephemerides
2026-09-06	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:19	02:05	02:34	11:13	11:43	12:29	08:45	-
Night Length	8:39		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Amy Westfall	-	-

Overlaps
TO Overlap	RA Overlap
Aiden Dillard	-

Other Personnel	Joshua Scally

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:17	22.7	20.9	11:42	twilight	10:25
Total Time Open					10:25

Program	Night Priority	Science
02:34	Science
02:56	Idle due to weather (queue hole)
03:15	Science
08:03	Engineering (hpf)
08:44	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:45	02:14	0.37	0.59	-420	-146	22.1	22.3	21.9	107	14	First of Night
05:28	05:55	0.39	0.60	-380	+1462	18.5	19.1	19.5	135	11	Stack/Re-stack
10:58	11:04	0.75	1.27	-520	+2366	17.2	17.9	18.0	214	8	Post-Observing
11:04	11:41	0.37	0.57	-397	+2472	17.5	18.0	18.0	192	9	First of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
6716	04:30-04:31	00:01	hobs not scheduling targets for an hour
6664	07:04-07:07	00:03	Go_Next handler busy
6717	05:00-05:00	00:00	Kitchen sink drains very slowly

Ops Comments	none

TO Comments	Clear and calm night. Closed early for DMI sweep.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	Quartz FCU	00:00	74.5			HPF	cal							Yes
0002	Quartz FCU	00:02	74.5			HPF	cal							Yes
0003	Quartz FCU	00:04	74.5			HPF	cal							Yes
0004	Quartz FCU	00:06	74.5			HPF	cal							Yes
0005	Alpha Bright Cal	00:08	85.2			HPF	cal							Yes
0006	Alpha Bright Cal	00:10	85.2			HPF	cal							Yes
0007	Alpha Bright Cal	00:12	85.2			HPF	cal							Yes
0008	Alpha Bright Cal	00:14	85.2			HPF	cal							Yes
0009	LFC FCU	00:17	106.5			HPF	cal							Yes
0010	LFC FCU	00:19	106.5			HPF	cal							Yes
0011	LFC Cal	00:22	106.5			HPF	cal							Yes
0012	LFC Cal	00:24	106.5			HPF	cal							Yes
0013	Etalon Cal	00:27	159.8			HPF	cal							Yes
0014	UNe Slave Cal	00:31	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:32	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:34	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:35	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:36	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:37	15			LRS2	cal							Yes
0015	UNe Slave Cal	00:38	426			HPF	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:39	20			LRS2	cal							Yes
lrs20000002_02	flat_ldls_long_B	00:40	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	00:41	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	00:43	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	00:44	29			LRS2	cal							Yes
0016	UNe Slave Cal	00:46	426			HPF	cal							Yes
lrs20000003_03	Cd-A_B	00:46	29			LRS2	cal							Yes
lrs20000004_01	FeAr_R	00:47	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	00:48	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	00:50	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	00:51	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	00:52	20			LRS2	cal							Yes
0017	UNe Slave Cal	00:54	426			HPF	cal							Yes
lrs20000005_03	Hg_R	00:54	20			LRS2	cal							Yes
lrs20000006_01	Hg_B	00:55	15			LRS2	cal							Yes
lrs20000006_02	Hg_B	00:56	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	00:57	15			LRS2	cal							Yes
0018	UNe Slave Cal	01:02	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	01:04	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	01:05	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	01:07	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	01:08	15			VIRUS	cal							Yes
0019	UNe Slave Cal	01:10	426			HPF	cal							Yes
virus0000002_02	Cd-A	01:10	15			VIRUS	cal							Yes
virus0000002_03	Cd-A	01:11	15			VIRUS	cal							Yes
virus0000003_01	Hg	01:12	15			VIRUS	cal							Yes
virus0000003_02	Hg	01:14	15			VIRUS	cal							Yes
virus0000003_03	Hg	01:15	15			VIRUS	cal							Yes
0020	twilight	01:18	298.2			HPF	cal					380		Yes
lrs20000007_01	skyflat	01:25	7			LRS2	cal							Yes
lrs20000008_01	skyflat	01:26	10			LRS2	cal							Yes
lrs20000009_01	skyflat	01:27	13			LRS2	cal							Yes
lrs20000010_01	skyflat	01:28	16			LRS2	cal							Yes
lrs20000011_01	skyflat	01:29	22			LRS2	cal							Yes
lrs20000012_01	skyflat	01:31	30			LRS2	cal							Yes
virus0000004_01	skyflat	01:34	7			VIRUS	cal							Yes
virus0000005_01	skyflat	01:35	10			VIRUS	cal							Yes
virus0000006_01	skyflat	01:36	14			VIRUS	cal							Yes
virus0000007_01	skyflat	01:38	18			VIRUS	cal							Yes
virus0000008_01	skyflat	01:39	26			VIRUS	cal							Yes
lrs20000013_01	bias	01:41	0			LRS2	cal							Yes
virus0000009_01	bias	01:41	0			VIRUS	cal							Yes
lrs20000013_02	bias	01:42	0			LRS2	cal							Yes
virus0000009_02	bias	01:42	0			VIRUS	cal							Yes
lrs20000013_03	bias	01:43	0			LRS2	cal							Yes
virus0000009_03	bias	01:43	0			VIRUS	cal							Yes
lrs20000013_04	bias	01:43	0			LRS2	cal							Yes
lrs20000013_05	bias	01:44	0			LRS2	cal							Yes
virus0000009_04	bias	01:44	0			VIRUS	cal							Yes
virus0000009_05	bias	01:45	0			VIRUS	cal							Yes
lrs20000013_06	bias	01:45	0			LRS2	cal							Yes
virus0000009_06	bias	01:46	0			VIRUS	cal							Yes
lrs20000013_07	bias	01:46	0			LRS2	cal							Yes
virus0000009_07	bias	01:46	0			VIRUS	cal							Yes
lrs20000013_08	bias	01:47	0			LRS2	cal							Yes
virus0000009_08	bias	01:47	0			VIRUS	cal							Yes
lrs20000013_09	bias	01:48	0			LRS2	cal							Yes
virus0000009_09	bias	01:48	0			VIRUS	cal							Yes
lrs20000013_10	bias	01:49	0			LRS2	cal							Yes
virus0000009_10	bias	01:49	0			VIRUS	cal							Yes
lrs20000013_11	bias	01:50	0			LRS2	cal							Yes
virus0000009_11	bias	01:50	0			VIRUS	cal							Yes
lrs20000014_01	dark	01:50	360			LRS2	cal							Yes
virus0000010_01	dark	01:51	360			VIRUS	cal							Yes
lrs20000014_02	dark	01:57	360			LRS2	cal							Yes
virus0000010_02	dark	01:58	360			VIRUS	cal							Yes
lrs20000014_03	dark	02:04	360			LRS2	cal							Yes
virus0000010_03	dark	02:04	360			VIRUS	cal							Yes
0021	LFC Cal	02:26	106.5			HPF	cal							Yes
virus0000011_01	parallel	02:26	1800			VIRUS	sci							Yes
lrs20000015_01	QID 178	02:26	1800	6.0	PSU26-3-008	LRS2-R	sci	1.24	0.71	20.72	0.95			Yes
0022	LFC Cal	02:28	106.5			HPF	cal							Yes
0023	LFC Cal	02:30	106.5			HPF	cal							Yes
0024	LFC Cal	03:20	106.5			HPF	cal							Yes
virus0000012_01	parallel	03:20	800			VIRUS	sci							Yes
lrs20000016_01	QID 1032	03:20	800	4.7	UT26-3-003	LRS2-R	sci	1.52	0.75	21.00	0.79			Yes
0025	LFC Cal	03:22	106.5			HPF	cal							Yes
0026	LFC Cal	03:25	106.5			HPF	cal							Yes
0027	LFC Cal	03:38	106.5			HPF	cal							Yes
virus0000013_01	parallel	03:38	800			VIRUS	sci							Yes
lrs20000017_01	QID 1031	03:38	800	4.7	UT26-3-003	LRS2-B	sci	1.57	0.92	22.03	0.79			Yes
0028	LFC Cal	03:40	106.5			HPF	cal							Yes
0029	LFC Cal	03:43	106.5			HPF	cal							Yes
0030	QID 795	03:56	617.7	5.7	UT26-3-001	HPF	sci	1.55	0.89	20.35	0.80	144		P4
virus0000014_01	parallel	03:56	1945.7			VIRUS	sci							Yes
0031	QID 795	04:08	617.7	0.7	UT26-3-001	HPF	sci	1.47	1.02	20.35	0.81	144		P4
0032	QID 795	04:19	617.7	0.7	UT26-3-001	HPF	sci	1.38	1.04	20.33	0.86	140		P4
0033	LFC Cal	04:38	106.5			HPF	cal							Yes
virus0000015_01	parallel	04:38	1800			VIRUS	sci							Yes
lrs20000018_01	QID 130	04:38	1800	9.0	UT26-3-013	LRS2-B	sci	1.75	0.74	21.71	0.86			Yes
0034	LFC Cal	04:40	106.5			HPF	cal							Yes
0035	LFC Cal	04:43	106.5			HPF	cal							Yes
0036	LFC Cal	05:12	106.5			HPF	cal							Yes
virus0000016_01	parallel	05:12	900			VIRUS	sci							Yes
lrs20000019_01	QID 131	05:12	900	4.0	UT26-3-013	LRS2-R	sci	1.34	0.67	20.66	1.08			Yes
0037	LFC Cal	05:14	106.5			HPF	cal							Yes
0038	LFC Cal	05:17	106.5			HPF	cal							Yes
0039	LFC Cal	06:00	106.5			HPF	cal							Yes
lrs20000020_01	parallel	06:00	420			LRS2	sci							Yes
virus0000017_01	QID 829	06:00	420	5.0	UT26-3-014	VIRUS	sci	1.30	0.76	21.63	0.90			Yes
0040	LFC Cal	06:03	106.5			HPF	cal							Yes
0041	LFC Cal	06:05	106.5			HPF	cal							Yes
lrs20000020_02	parallel	06:08	420			LRS2	sci							Yes
virus0000017_02	QID 829	06:08	420	1.0	UT26-3-014	VIRUS	sci	1.34	0.88	21.63	0.89			Yes
lrs20000020_03	parallel	06:17	420			LRS2	sci							Yes
virus0000017_03	QID 829	06:17	420	2.0	UT26-3-014	VIRUS	sci	1.25	0.82	21.58	0.92			Yes
0042	LFC Cal	06:28	106.5			HPF	cal							Yes
lrs20000021_01	parallel	06:28	360			LRS2	sci							Yes
virus0000018_01	QID 847	06:28	360	4.0	UT26-3-014	VIRUS	sci	1.23	0.97	21.72	0.86			Yes
0043	LFC Cal	06:30	106.5			HPF	cal							Yes
lrs20000021_02	parallel	06:35	360			LRS2	sci							Yes
virus0000018_02	QID 847	06:35	360	1.0	UT26-3-014	VIRUS	sci	1.25	0.84	21.70	0.86			Yes
lrs20000021_03	parallel	06:42	360			LRS2	sci							Yes
virus0000018_03	QID 847	06:42	360	1.0	UT26-3-014	VIRUS	sci	1.33	0.81	21.66	0.90			Yes
lrs20000022_01	FEIGE110_056_E	06:54	60	6.0		LRS2	spec	1.39	0.87	21.47	0.85			Yes
lrs20000023_01	FEIGE110_066_E	06:59	120	4.0		LRS2	spec	1.13	0.74	20.63	0.94			Yes
0044	LFC Cal	07:14	106.5			HPF	cal							Yes
virus0000019_01	parallel	07:14	1800			VIRUS	sci							Yes
lrs20000024_01	QID 122	07:14	1800	13.0	UT26-3-013	LRS2-B	sci	1.40	0.86	21.67	0.70			Yes
0045	LFC Cal	07:16	106.5			HPF	cal							Yes
0046	LFC Cal	07:19	106.5			HPF	cal							Yes
0047	LFC Cal	07:48	106.5			HPF	cal							Yes
lrs20000025_01	QID 123	07:48	900	4.0	UT26-3-013	LRS2-R	sci	1.51	1.03	20.70	1.01			Yes
virus0000020_01	parallel	07:48	900			VIRUS	sci							Yes
0048	LFC Cal	07:51	106.5			HPF	cal							Yes
0049	LFC Cal	07:53	106.5			HPF	cal							Yes
virus0000021_01	parallel	08:10	2000			VIRUS	eng							Yes
0050	Teegarden	08:11	969.1	7.8	ENG26-3-000	HPF	eng	1.36	0.74	20.25	0.90	306		Yes
0051	Teegarden	08:28	969.1	0.8	ENG26-3-000	HPF	eng	1.31	0.89	20.25	0.92	290		Yes
0052	LFC Cal	08:46	106.5			HPF	cal							Yes
0053	QID 182	08:50	553.8	5.8	UT26-3-002	HPF	sci	1.34	1.08	20.49	0.59	452		Yes
virus0000022_01	parallel	08:50	1190.6			VIRUS	sci							Yes
0054	QID 182	09:00	553.8	0.8	UT26-3-002	HPF	sci	1.37	0.87	20.51	0.61	440		Yes
0055	QID 183	09:15	404.7	6.3	UT26-3-002	HPF	sci	1.39		20.34	0.77	505		Yes
virus0000023_01	parallel	09:15	446.2			VIRUS	sci							Yes
0056	HR8926_tell_std	09:29	117.2	7.0		HPF	telluric	1.51		20.41	0.80			Yes
virus0000024_01	parallel	09:39	1084.1			VIRUS	sci							Yes
0057	QID 1018	09:40	500.6	8.7	UT26-3-004	HPF	sci	1.59		20.33	0.88	93		P4
0058	QID 1018	09:49	500.6	0.7	UT26-3-004	HPF	sci	1.48		20.37	0.88	95		P4
virus0000025_01	parallel	10:03	318.4			VIRUS	sci							Yes
0059	QID 932	10:04	276.9	6.4	UT26-3-012	HPF	sci	1.96		20.38	0.89	499		P4
0060	LFC Cal	10:10	106.5			HPF	cal							Yes
0061	LFC Cal	10:15	106.5			HPF	cal							Yes
virus0000026_01	parallel	10:15	300			VIRUS	sci							Yes
lrs20000026_01	QID 1028	10:15	300	7.0	UT26-3-010	LRS2-B	sci	1.64		21.58	0.85			Yes
0062	LFC Cal	10:18	106.5			HPF	cal							Yes
virus0000027_01	parallel	10:25	1800			VIRUS	sci							Yes
0063	LFC Cal	10:26	106.5			HPF	cal							Yes
lrs20000027_01	QID 982	10:26	1800	6.0	PSU26-3-006	LRS2-B	sci	1.63		21.68	0.80			Yes
0064	LFC Cal	10:28	106.5			HPF	cal							Yes
0065	LFC Cal	10:30	106.5			HPF	cal							Yes
lrs20000028_01	bias	10:57	0			LRS2	cal							Yes
virus0000028_01	bias	10:58	0			VIRUS	cal							Yes
virus0000029_01	Cd-A	11:02	15		ENG26-3-002	VIRUS	cal							Yes
virus0000030_01	Hg	11:04	15		ENG26-3-002	VIRUS	cal							Yes
0066	Dark	11:43	319.5			HPF	cal							Yes
0067	Quartz FCU	11:55	74.5			HPF	cal							Yes
0068	Quartz FCU	11:57	74.5			HPF	cal							Yes
0069	Quartz FCU	11:58	74.5			HPF	cal							Yes
0070	Quartz FCU	12:00	74.5			HPF	cal							Yes
0071	Quartz FCU	12:02	74.5			HPF	cal							Yes
0072	Quartz FCU	12:04	74.5			HPF	cal							Yes
0073	Quartz FCU	12:06	74.5			HPF	cal							Yes
0074	Alpha Bright Cal	12:08	85.2			HPF	cal							Yes
0075	Alpha Bright Cal	12:10	85.2			HPF	cal							Yes
0076	Alpha Bright Cal	12:12	85.2			HPF	cal							Yes
0077	Alpha Bright Cal	12:14	85.2			HPF	cal							Yes
0078	LFC FCU	12:16	106.5			HPF	cal							Yes
0079	LFC FCU	12:19	106.5			HPF	cal							Yes
0080	LFC FCU	12:21	106.5			HPF	cal							Yes
0081	LFC FCU	12:23	106.5			HPF	cal							Yes
0082	LFC FCU	12:26	106.5			HPF	cal							Yes
0083	LFC FCU	12:28	106.5			HPF	cal							Yes
0084	LFC Cal	12:31	106.5			HPF	cal							Yes
0085	LFC Cal	12:33	106.5			HPF	cal							Yes
0086	Etalon Cal	12:41	159.8			HPF	cal							Yes
0087	Etalon Cal	12:44	159.8			HPF	cal							Yes
0088	Etalon Cal	12:47	159.8			HPF	cal							Yes
0089	Etalon Cal	12:51	159.8			HPF	cal							Yes
0090	UNe Slave Cal	12:54	426			HPF	cal							Yes
0091	UNe Slave Cal	13:02	426			HPF	cal							Yes
0092	UNe Slave Cal	13:10	426			HPF	cal							Yes
0093	UNe Slave Cal	13:17	426			HPF	cal							Yes
0094	UNe Slave Cal	13:25	426			HPF	cal							Yes
0095	UNe Slave Cal	13:33	426			HPF	cal							Yes
0077	LFC Cal	23:30	106.5			HPF	cal							Yes
lrs20009900_01	bias	23:33	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	23:34	20			VIRUS	cal							Yes
virus0009901_01	bias	23:36	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:36	20			LRS2	cal							Yes
virus0009902_01	dark	23:38	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:38	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:40	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:42	15			LRS2	cal							Yes
0078	Dark	23:48	319.5			HPF	cal							Yes
0079	Quartz FCU	23:55	74.5			HPF	cal							Yes
0080	Quartz FCU	23:57	74.5			HPF	cal							Yes
0081	Quartz FCU	23:59	74.5			HPF	cal							Yes

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