HET Night Report Reader

Civil Date	Ephemerides
2026-03-10	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:08	01:53	02:21	11:50	12:18	13:04	08:14	-
Night Length	9:29		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin / Tyler Ryburn	Amy Westfall

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
02:14	7.4	8.9	04:12	wind	01:58
04:54	6.4	7.7	05:25	wind	00:31
Total Time Open					2:29

Program	Night Priority	Science
02:21	Idle due to weather (clouds)
03:09	Science
03:55	Idle due to weather (wind speed)
04:55	Science
05:23	Idle due to weather (wind speed)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:22	02:57	0.60	0.98	60	-2749	0.75	8.2	8.5	270	20	First of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
5588	23:49-00:01	00:12	EPICS IO caused PFIP crash

TO Comments	none

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000021_03	dark	00:03	360			LRS2	cal							Yes
virus0000025_03	dark	00:03	360			VIRUS	cal							Yes
0001	LFC Cal	01:25	106.5			HPF	cal							Yes
0002	LFC Cal	01:27	106.5			HPF	cal							Yes
0003	LFC Cal	01:29	106.5			HPF	cal							Yes
0004	LFC Cal	02:31	106.5			HPF	cal							Yes
0005	LFC Cal	02:33	106.5			HPF	cal							Yes
0006	LFC Cal	02:36	106.5			HPF	cal							Yes
0007	LFC Cal	03:16	106.5			HPF	cal							Yes
lrs20000001_01	QID 2883	03:16	180	7.0	UT26-1-016	LRS2-B	sci	2.86		21.99	0.85			P4
0008	LFC Cal	03:24	106.5			HPF	cal							Yes
lrs20000002_01	QID 2884	03:24	360	5.0	UT26-1-016	LRS2-R	sci	2.53		20.89	1.05			P4
virus0000001_01	parallel	03:24	360			VIRUS	sci							Yes
0009	LFC Cal	03:27	106.5			HPF	cal							Yes
0010	QID 3023	03:38	308.9	8.9	UT26-1-009	HPF	sci	2.68		20.22	0.88	75		Yes
virus0000002_01	parallel	03:38	1060			VIRUS	sci							Yes
0011	QID 3023	03:44	308.9	-0.1	UT26-1-009	HPF	sci	2.58		20.24	0.88	77		Yes
0012	QID 3023	03:50	308.9	0.9	UT26-1-009	HPF	sci	2.55	2.11	20.19	0.88	76		Yes
0013	LFC Cal	04:01	106.5			HPF	cal							Yes
lrs20000003_01	parallel	04:01	600			LRS2	sci							Yes
virus0000003_01	QID 3018	04:01	600	6.0	M26-1-010	VIRUS	sci	2.96	2.06	21.79	0.77			No
0014	LFC Cal	04:03	106.5			HPF	cal							Yes
0015	LFC Cal	04:06	106.5			HPF	cal							Yes
lrs20000003_02	parallel	04:12	600			LRS2	sci							Yes
virus0000003_02	QID 3018	04:12	600	1.0	M26-1-010	VIRUS	sci	3.01	2.34	21.92	0.61			No
virus0000004_01	dark	04:50	360		ENG26-1-004	VIRUS	cal							Yes
0016	LFC Cal	04:59	106.5			HPF	cal							Yes
lrs20000004_01	parallel	04:59	420			LRS2	sci							Yes
virus0000005_01	QID 408	04:59	420	4.0	UT26-1-008	VIRUS	sci	2.25	1.50	21.85	0.82			Yes
0017	LFC Cal	05:02	106.5			HPF	cal							Yes
0018	LFC Cal	05:04	106.5			HPF	cal							Yes
lrs20000004_02	parallel	05:07	420			LRS2	sci							Yes
virus0000005_02	QID 408	05:07	420	1.0	UT26-1-008	VIRUS	sci	2.28	1.47	21.80	0.84			Yes
lrs20000004_03	parallel	05:16	420			LRS2	sci							Yes
virus0000005_03	QID 408	05:16	420	2.0	UT26-1-008	VIRUS	sci	2.15	1.50	21.72	0.91			Yes
virus0000006_01	dark	05:27	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_02	dark	05:34	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_03	dark	05:41	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_04	dark	05:47	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_05	dark	05:54	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_06	dark	06:01	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_07	dark	06:08	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_08	dark	06:15	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_09	dark	06:22	360		ENG26-1-004	VIRUS	cal							Yes
virus0000006_10	dark	06:29	360		ENG26-1-004	VIRUS	cal							Yes
0019	LFC Cal	06:34	106.5			HPF	cal							Yes
0020	LFC Cal	06:37	106.5			HPF	cal							Yes
0021	LFC Cal	06:39	106.5			HPF	cal							Yes
lrs20000005_01	FeAr_long_R	06:39	65		ENG26-1-002	LRS2	cal							Yes
lrs20000005_02	FeAr_long_R	06:41	65		ENG26-1-002	LRS2	cal							Yes
lrs20000005_03	FeAr_long_R	06:43	65		ENG26-1-002	LRS2	cal							Yes
lrs20000005_04	FeAr_long_R	06:45	65		ENG26-1-002	LRS2	cal							Yes
lrs20000006_01	FeAr_long_B	06:50	150		ENG26-1-002	LRS2	cal							Yes
lrs20000006_02	FeAr_long_B	06:53	150		ENG26-1-002	LRS2	cal							Yes
lrs20000006_03	FeAr_long_B	06:57	150		ENG26-1-002	LRS2	cal							Yes
lrs20000006_04	FeAr_long_B	07:00	150		ENG26-1-002	LRS2	cal							Yes
lrs20000007_01	dark	07:12	1800		ENG26-1-002	LRS2	cal							Yes
lrs20000007_02	dark	07:42	1800		ENG26-1-002	LRS2	cal							Yes
lrs20000007_03	dark	08:13	1800		ENG26-1-002	LRS2	cal							Yes
0022	LFC Cal	08:23	106.5			HPF	cal							Yes
0023	LFC Cal	08:25	106.5			HPF	cal							Yes
0024	LFC Cal	08:27	106.5			HPF	cal							Yes
virus0000007_01	skyflat	08:57	7			VIRUS	cal							Yes
virus0000008_01	skyflat	08:58	10			VIRUS	cal							Yes
virus0000009_01	skyflat	08:59	14			VIRUS	cal							Yes
virus0000010_01	skyflat	09:01	18			VIRUS	cal							Yes
virus0000011_01	skyflat	09:02	26			VIRUS	cal							Yes
0081	LFC Cal	21:50	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:01	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:02	20			VIRUS	cal							Yes
virus0009901_01	bias	22:03	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:04	20			LRS2	cal							Yes
virus0009902_01	dark	22:05	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:06	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:08	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:09	15			LRS2	cal							Yes
0082	Dark	22:12	319.5			HPF	cal							Yes
0083	Quartz FCU	22:18	74.5			HPF	cal							Yes
0084	Quartz FCU	22:20	74.5			HPF	cal							Yes
0085	Quartz FCU	22:22	74.5			HPF	cal							Yes
0086	Quartz FCU	22:24	74.5			HPF	cal							Yes
0087	Quartz FCU	22:25	74.5			HPF	cal							Yes
0088	Quartz FCU	22:27	74.5			HPF	cal							Yes
0089	Quartz FCU	22:29	74.5			HPF	cal							Yes
0090	Alpha Bright Cal	22:31	85.2			HPF	cal							Yes
0091	Alpha Bright Cal	22:33	85.2			HPF	cal							Yes
0092	Alpha Bright Cal	22:35	85.2			HPF	cal							Yes
0093	Alpha Bright Cal	22:37	85.2			HPF	cal							Yes
0094	LFC FCU	22:40	106.5			HPF	cal							Yes
0095	LFC FCU	22:42	106.5			HPF	cal							Yes
0096	LFC Cal	22:45	106.5			HPF	cal							Yes
0097	LFC Cal	22:47	106.5			HPF	cal							Yes
0098	Etalon Cal	22:50	159.8			HPF	cal							Yes
0099	UNe Slave Cal	22:54	426			HPF	cal							Yes
lrs20000014_01	flat_Qth_R	22:55	15			LRS2	cal							Yes
lrs20000014_02	flat_Qth_R	22:56	15			LRS2	cal							Yes
lrs20000014_03	flat_Qth_R	22:58	15			LRS2	cal							Yes
lrs20000014_04	flat_Qth_R	22:59	15			LRS2	cal							Yes
lrs20000014_05	flat_Qth_R	23:00	15			LRS2	cal							Yes
0100	UNe Slave Cal	23:01	426			HPF	cal							Yes
lrs20000015_01	flat_ldls_long_B	23:02	20			LRS2	cal							Yes
lrs20000015_02	flat_ldls_long_B	23:03	20			LRS2	cal							Yes
lrs20000015_03	flat_ldls_long_B	23:04	20			LRS2	cal							Yes
lrs20000016_01	Cd-A_B	23:05	29			LRS2	cal							Yes
lrs20000016_02	Cd-A_B	23:07	29			LRS2	cal							Yes
lrs20000016_03	Cd-A_B	23:08	29			LRS2	cal							Yes
0101	UNe Slave Cal	23:09	426			HPF	cal							Yes
lrs20000017_01	FeAr_R	23:10	15			LRS2	cal							Yes
lrs20000017_02	FeAr_R	23:11	15			LRS2	cal							Yes
lrs20000017_03	FeAr_R	23:13	15			LRS2	cal							Yes
lrs20000018_01	Hg_R	23:14	20			LRS2	cal							Yes
lrs20000018_02	Hg_R	23:15	20			LRS2	cal							Yes
lrs20000018_03	Hg_R	23:16	20			LRS2	cal							Yes
0102	UNe Slave Cal	23:17	426			HPF	cal							Yes
lrs20000019_01	Hg_B	23:18	15			LRS2	cal							Yes
lrs20000019_02	Hg_B	23:19	15			LRS2	cal							Yes
lrs20000019_03	Hg_B	23:20	15			LRS2	cal							Yes
0103	UNe Slave Cal	23:25	426			HPF	cal							Yes
virus0000021_01	flat_ldls_long	23:27	15			VIRUS	cal							Yes
virus0000021_02	flat_ldls_long	23:28	15			VIRUS	cal							Yes
virus0000021_03	flat_ldls_long	23:30	15			VIRUS	cal							Yes
virus0000022_01	Cd-A	23:31	15			VIRUS	cal							Yes
0104	UNe Slave Cal	23:32	426			HPF	cal							Yes
virus0000022_02	Cd-A	23:33	15			VIRUS	cal							Yes
virus0000022_03	Cd-A	23:34	15			VIRUS	cal							Yes
virus0000023_01	Hg	23:35	15			VIRUS	cal							Yes
virus0000023_02	Hg	23:37	15			VIRUS	cal							Yes
virus0000023_03	Hg	23:38	15			VIRUS	cal							Yes
lrs20000020_01	bias	23:40	0			LRS2	cal							Yes
virus0000024_01	bias	23:40	0			VIRUS	cal							Yes
lrs20000020_02	bias	23:40	0			LRS2	cal							Yes
virus0000024_02	bias	23:41	0			VIRUS	cal							Yes
lrs20000020_03	bias	23:41	0			LRS2	cal							Yes
virus0000024_03	bias	23:41	0			VIRUS	cal							Yes
lrs20000020_04	bias	23:42	0			LRS2	cal							Yes
virus0000024_04	bias	23:42	0			VIRUS	cal							Yes
lrs20000020_05	bias	23:43	0			LRS2	cal							Yes
virus0000024_05	bias	23:43	0			VIRUS	cal							Yes
lrs20000020_06	bias	23:44	0			LRS2	cal							Yes
virus0000024_06	bias	23:44	0			VIRUS	cal							Yes
lrs20000020_07	bias	23:45	0			LRS2	cal							Yes
virus0000024_07	bias	23:45	0			VIRUS	cal							Yes
lrs20000020_08	bias	23:45	0			LRS2	cal							Yes
virus0000024_08	bias	23:46	0			VIRUS	cal							Yes
lrs20000020_09	bias	23:46	0			LRS2	cal							Yes
virus0000024_09	bias	23:47	0			VIRUS	cal							Yes
lrs20000020_10	bias	23:47	0			LRS2	cal							Yes
virus0000024_10	bias	23:48	0			VIRUS	cal							Yes
lrs20000020_11	bias	23:48	0			LRS2	cal							Yes
virus0000024_11	bias	23:48	0			VIRUS	cal							Yes
lrs20000021_01	dark	23:49	360			LRS2	cal							Yes
virus0000025_01	dark	23:49	360			VIRUS	cal							Yes
lrs20000021_02	dark	23:56	360			LRS2	cal							Yes
virus0000025_02	dark	23:56	360			VIRUS	cal							Yes