HET Night Report Reader

Civil Date	Ephemerides
2025-04-08	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:27	02:13	02:43	11:12	11:42	12:28	-	11:04
Night Length	8:29		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:21	15.0	13.9	11:48	twilight	10:27
Total Time Open					10:27

Program	Night Priority	Science
02:43	Science
10:07	Idle due to weather (clouds)
10:27	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:51	02:17	0.42	0.64	205	+3751	14.7	14.3	14.3	218	10	First of Night
11:42	11:47	0.59	0.90	10	+5559	14.3	14.7	14.7	268	15	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6464	21:00-21:00	00:00	CC: Truss temp sensor reading 4-5 degrees lower than internal. AW after night shift: Recorded internal temperature as truss temperature for both stack measurements.

TO Comments	Clear and calm night with stable temps.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	twilight	01:24	298.2			HPF	cal							Yes
lrs20000001_01	skyflat	01:31	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:33	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:34	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:35	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:36	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:37	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:40	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:41	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:43	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:44	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:45	26			VIRUS	cal							Yes
0002	LFC Cal	01:47	106.5			HPF	cal							Yes
0003	LFC Cal	01:49	106.5			HPF	cal							Yes
0004	LFC Cal	01:52	106.5			HPF	cal							Yes
0005	test_drk_donotuse	02:23	10.7			HPF	cal							Yes
0006	HR2253_tell_std	02:23	330.2	6.5		HPF	telluric	1.37	0.70	18.87	0.91			Yes
0007	LFC Cal	02:35	106.5			HPF	cal							Yes
virus0000006_01	parallel	02:35	1200			VIRUS	sci							Yes
lrs20000007_01	parallel	02:35	1200	6.0	UT25-2-005	LRS2-B	sci	1.30	0.62	18.86	1.00			Yes
0008	LFC Cal	02:37	106.5			HPF	cal							Yes
0009	LFC Cal	02:40	106.5			HPF	cal							Yes
0010	LFC Cal	02:56	106.5			HPF	cal							Yes
0011	test_drk_donotuse	03:04	10.7			HPF	cal							Yes
0012	parallel	03:05	969.1	10.8	PSU25-2-015	HPF	sci	1.35	0.77	18.66	0.91	214		Yes
virus0000007_01	parallel	03:05	2047			VIRUS	sci							Yes
0013	parallel	03:22	969.1	0.8	PSU25-2-015	HPF	sci	1.41	0.74	18.53	0.94	178		Yes
0014	LFC Cal	03:41	106.5			HPF	cal							Yes
virus0000008_01	parallel	03:45	600			VIRUS	sci							Yes
lrs20000008_01	parallel	03:45	600	6.0	M25-2-002	LRS2-B	sci	1.69	1.00	18.33	0.84			Yes
0015	LFC Cal	03:46	106.5			HPF	cal							Yes
0016	LFC Cal	03:48	106.5			HPF	cal							Yes
0017	LFC Cal	03:50	106.5			HPF	cal							Yes
0018	LFC Cal	03:56	106.5			HPF	cal							Yes
0019	LFC Cal	04:00	106.5			HPF	cal							Yes
lrs20000009_01	parallel	04:00	600	5.0	M25-2-002	LRS2-R	sci	1.87	1.25	18.12	0.91			Yes
virus0000009_01	parallel	04:00	600			VIRUS	sci							Yes
0020	LFC Cal	04:03	106.5			HPF	cal							Yes
0021	LFC Cal	04:05	106.5			HPF	cal							Yes
0022	LFC Cal	04:11	106.5			HPF	cal							Yes
0023	test_drk_donotuse	04:15	10.7			HPF	cal							Yes
0024	parallel	04:16	915.9	6.7	G25-2-002	HPF	sci	1.72	1.15	18.26	0.88	39		Yes
virus0000010_01	parallel	04:16	1959			VIRUS	sci							Yes
0025	parallel	04:32	915.9	0.7	G25-2-002	HPF	sci	1.76	1.38	18.24	0.90	42		Yes
0026	LFC Cal	04:50	106.5			HPF	cal							Yes
0027	test_drk_donotuse	04:54	10.7			HPF	cal							Yes
0028	parallel	04:55	969.1	6.8	PSU25-2-008	HPF	sci	1.85		18.89	0.63	109		Yes
virus0000011_01	parallel	04:55	1023			VIRUS	sci							Yes
0029	test_drk_donotuse	05:15	10.7			HPF	cal							Yes
0030	parallel	05:17	969.1	6.8	UT25-2-008	HPF	sci	2.05	1.77	18.86	0.71	54		P4
virus0000012_01	parallel	05:17	2047			VIRUS	sci							Yes
0031	parallel	05:34	969.1	0.8	UT25-2-008	HPF	sci	1.90	1.46	18.88	0.74	59		P4
0032	LFC Cal	05:52	106.5			HPF	cal							Yes
0033	test_drk_donotuse	05:55	10.7			HPF	cal							Yes
0034	parallel	05:59	74.5	7.8	PSU25-2-005	HPF	sci	1.78	1.48	18.22	0.82	512		Yes
0035	test_drk_donotuse	06:02	10.7			HPF	cal							Yes
0036	test_drk_donotuse	06:13	10.7			HPF	cal							Yes
0037	parallel	06:14	74.5	13.8	PSU25-2-005	HPF	sci	1.59	1.46	18.46	0.82	634		Yes
0038	test_drk_donotuse	06:20	10.7			HPF	cal							Yes
virus0000013_01	parallel	06:21	1023			VIRUS	sci							Yes
0039	parallel	06:22	969.1	6.8	PSU25-2-008	HPF	sci	1.90	1.33	19.00	0.63	26		Yes
0040	LFC Cal	06:40	106.5			HPF	cal							Yes
0041	test_drk_donotuse	06:44	10.7			HPF	cal							Yes
virus0000014_01	parallel	06:44	2047			VIRUS	sci							Yes
0042	parallel	06:45	969.1	6.8	UT25-2-008	HPF	sci	2.27	1.70	19.05	0.61	47		Yes
0043	parallel	07:02	969.1	0.8	UT25-2-008	HPF	sci	2.27	1.75	19.19	0.67	52		Yes
0044	LFC Cal	07:20	106.5			HPF	cal							Yes
0045	test_drk_donotuse	07:22	10.7			HPF	cal							Yes
virus0000015_01	parallel	07:24	2047			VIRUS	sci							Yes
0046	parallel	07:25	969.1	6.8	PSU25-2-009	HPF	sci	2.08	1.53	18.41	0.70	54		Yes
0047	parallel	07:42	969.1	0.8	PSU25-2-009	HPF	sci	2.06	1.61	18.40	0.68	56		Yes
0048	LFC Cal	08:00	106.5			HPF	cal							Yes
lrs20000010_01	GRW+705824_056_E	08:04	180	6.0		LRS2	spec	2.47	1.67	19.23	0.52			Yes
lrs20000011_01	GRW+705824_066_E	08:10	180	3.0		LRS2	spec	2.43	2.05	19.01	0.70			Yes
0049	test_drk_donotuse	08:18	10.7			HPF	cal							Yes
0050	parallel	08:19	74.5	6.8	PSU25-2-005	HPF	sci	2.53	1.83	19.32	0.72	362		P4
0051	test_drk_donotuse	08:22	10.7			HPF	cal							Yes
lrs20000012_01	parallel	08:29	180	8.0	UT25-2-018	LRS2-B	sci	2.70	2.05	19.36	0.77			P4
0052	LFC Cal	08:30	106.5			HPF	cal							Yes
virus0000016_01	parallel	08:38	360			VIRUS	sci							Yes
0053	LFC Cal	08:39	106.5			HPF	cal							Yes
lrs20000013_01	parallel	08:39	360	7.0	UT25-2-018	LRS2-R	sci	2.42	1.89	19.23	0.92			P4
0054	LFC Cal	08:41	106.5			HPF	cal							Yes
0055	test_drk_donotuse	08:50	10.7			HPF	cal							Yes
virus0000017_01	parallel	08:50	2047			VIRUS	sci							Yes
0056	parallel	08:51	969.1	5.8	PSU25-2-015	HPF	sci	2.27	1.69	19.21	0.87	118		Yes
0057	parallel	09:08	969.1	0.8	PSU25-2-015	HPF	sci	2.14	1.94	19.30	0.88	129		Yes
0058	LFC Cal	09:26	106.5			HPF	cal							Yes
0059	test_drk_donotuse	09:28	10.7			HPF	cal							Yes
0060	parallel	09:29	969.1	5.8	PSU25-2-008	HPF	sci	1.83	1.74	18.54	0.81	44		Yes
virus0000018_01	parallel	09:29	1023			VIRUS	sci							Yes
0061	LFC Cal	09:47	106.5			HPF	cal							Yes
0062	LFC Cal	09:52	106.5			HPF	cal							Yes
virus0000019_01	parallel	09:52	900			VIRUS	sci							Yes
lrs20000014_01	parallel	09:52	900	6.0	UT25-2-005	LRS2-B	sci	2.39	2.01	19.66	0.84			Yes
0063	LFC Cal	09:55	106.5			HPF	cal							Yes
0064	LFC Cal	09:57	106.5			HPF	cal							Yes
0065	LFC Cal	10:13	106.5			HPF	cal							Yes
virus0000020_01	parallel	10:13	750			VIRUS	sci							Yes
lrs20000015_01	parallel	10:13	750	6.5	UT25-2-005	LRS2-B	sci	2.33	2.09	19.87	0.86		clouds.	No
0066	LFC Cal	10:16	106.5			HPF	cal							Yes
0067	LFC Cal	10:18	106.5			HPF	cal							Yes
virus0000020_02	parallel	10:27	750			VIRUS	sci							Yes
lrs20000015_02	parallel	10:27	0	1.0	UT25-2-005	LRS2-B	sci	2.47	2.00	20.04	0.84		clouds, aborted	No
0068	test_drk_donotuse	10:30	10.7			HPF	cal							Yes
virus0000021_01	parallel	10:32	2941			VIRUS	sci							Yes
0069	parallel	10:33	915.9	5.7	UT25-2-012	HPF	sci	2.14	1.46	19.76	0.87	48		Yes
0070	parallel	10:49	915.9	0.7	UT25-2-012	HPF	sci	2.19	1.75	20.08	0.88	45		Yes
0071	parallel	11:05	915.9	0.7	UT25-2-012	HPF	sci	2.09	1.66	20.28	0.88	42		Yes
0072	LFC Cal	11:27	106.5			HPF	cal							Yes
lrs20000016_01	parallel	11:27	180	7.0	UT25-2-018	LRS2-B	sci	2.11	1.69	21.13	0.79			P4
0073	LFC Cal	11:34	106.5			HPF	cal							Yes
virus0000022_01	parallel	11:34	360			VIRUS	sci							Yes
lrs20000017_01	parallel	11:34	360	4.0	UT25-2-018	LRS2-R	sci	2.21	2.10	20.22	0.94			P4
0074	LFC Cal	11:36	106.5			HPF	cal							Yes
lrs20000018_01	bias	11:41	0			LRS2	cal							Yes
virus0000023_01	bias	11:41	0			VIRUS	cal							Yes
virus0000024_01	Cd-A	11:46	15		ENG25-2-002	VIRUS	cal							Yes
virus0000025_01	Hg	11:47	15		ENG25-2-002	VIRUS	cal							Yes
0075	Dark	11:55	319.5			HPF	cal							Yes
0076	Quartz FCU	12:06	74.5			HPF	cal							Yes
0077	Quartz FCU	12:08	74.5			HPF	cal							Yes
0078	Quartz FCU	12:10	74.5			HPF	cal							Yes
0079	Quartz FCU	12:12	74.5			HPF	cal							Yes
0080	Quartz FCU	12:13	74.5			HPF	cal							Yes
0081	Quartz FCU	12:15	74.5			HPF	cal							Yes
0082	Quartz FCU	12:17	74.5			HPF	cal							Yes
0083	Alpha Bright Cal	12:19	85.2			HPF	cal							Yes
0084	Alpha Bright Cal	12:21	85.2			HPF	cal							Yes
0085	Alpha Bright Cal	12:23	85.2			HPF	cal							Yes
0086	Alpha Bright Cal	12:25	85.2			HPF	cal							Yes
0087	LFC FCU	12:28	106.5			HPF	cal							Yes
0088	LFC FCU	12:30	106.5			HPF	cal							Yes
0089	LFC FCU	12:32	106.5			HPF	cal							Yes
0090	LFC FCU	12:35	106.5			HPF	cal							Yes
0091	LFC FCU	12:37	106.5			HPF	cal							Yes
0092	LFC FCU	12:39	106.5			HPF	cal							Yes
0093	LFC Cal	12:42	106.5			HPF	cal							Yes
0094	LFC Cal	12:45	106.5			HPF	cal							Yes
0095	Etalon Cal	12:52	159.8			HPF	cal							Yes
0096	Etalon Cal	12:56	159.8			HPF	cal							Yes
0097	Etalon Cal	12:59	159.8			HPF	cal							Yes
0098	Etalon Cal	13:02	159.8			HPF	cal							Yes
0099	UNe Slave Cal	13:06	426			HPF	cal							Yes
0100	UNe Slave Cal	13:13	426			HPF	cal							Yes
0101	UNe Slave Cal	13:21	426			HPF	cal							Yes
0102	UNe Slave Cal	13:29	426			HPF	cal							Yes
0103	UNe Slave Cal	13:37	426			HPF	cal							Yes
0104	UNe Slave Cal	13:45	426			HPF	cal							Yes
0119	LFC Cal	21:34	106.5			HPF	cal							Yes
0120	LFC Cal	21:41	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:52	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:52	20			VIRUS	cal							Yes
virus0009901_01	bias	21:54	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:55	20			LRS2	cal							Yes
virus0009902_01	dark	21:56	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:57	38			LRS2	cal							Yes
lrs20009903_01	FeAr_R	21:59	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:00	15			LRS2	cal							Yes
0121	Dark	22:02	319.5			HPF	cal							Yes
0122	Quartz FCU	22:08	74.5			HPF	cal							Yes
0123	Quartz FCU	22:10	74.5			HPF	cal							Yes
0124	Quartz FCU	22:12	74.5			HPF	cal							Yes
0125	Quartz FCU	22:14	74.5			HPF	cal							Yes
0126	Quartz FCU	22:16	74.5			HPF	cal							Yes
0127	Quartz FCU	22:17	74.5			HPF	cal							Yes
0128	Quartz FCU	22:19	74.5			HPF	cal							Yes
0129	Alpha Bright Cal	22:21	85.2			HPF	cal							Yes
0130	Alpha Bright Cal	22:23	85.2			HPF	cal							Yes
0131	Alpha Bright Cal	22:25	85.2			HPF	cal							Yes
0132	Alpha Bright Cal	22:27	85.2			HPF	cal							Yes
0133	LFC FCU	22:30	106.5			HPF	cal							Yes
0134	LFC FCU	22:32	106.5			HPF	cal							Yes
0135	LFC Cal	22:35	106.5			HPF	cal							Yes
0136	LFC Cal	22:37	106.5			HPF	cal							Yes
0137	Etalon Cal	22:40	159.8			HPF	cal							Yes
0138	UNe Slave Cal	22:43	426			HPF	cal							Yes
lrs20000016_01	flat_Qth_R	22:46	15			LRS2	cal							Yes
lrs20000016_02	flat_Qth_R	22:47	15			LRS2	cal							Yes
lrs20000016_03	flat_Qth_R	22:49	15			LRS2	cal							Yes
lrs20000016_04	flat_Qth_R	22:50	15			LRS2	cal							Yes
0139	UNe Slave Cal	22:51	426			HPF	cal							Yes
lrs20000016_05	flat_Qth_R	22:51	15			LRS2	cal							Yes
lrs20000017_01	flat_ldls_long_B	22:52	20			LRS2	cal							Yes
lrs20000017_02	flat_ldls_long_B	22:54	20			LRS2	cal							Yes
lrs20000017_03	flat_ldls_long_B	22:55	20			LRS2	cal							Yes
lrs20000018_01	Cd-A_B	22:56	38			LRS2	cal							Yes
lrs20000018_02	Cd-A_B	22:58	38			LRS2	cal							Yes
0140	UNe Slave Cal	22:59	426			HPF	cal							Yes
lrs20000018_03	Cd-A_B	22:59	38			LRS2	cal							Yes
lrs20000019_01	FeAr_R	23:01	15			LRS2	cal							Yes
lrs20000019_02	FeAr_R	23:02	15			LRS2	cal							Yes
lrs20000019_03	FeAr_R	23:04	15			LRS2	cal							Yes
lrs20000020_01	Hg_R	23:05	20			LRS2	cal							Yes
lrs20000020_02	Hg_R	23:06	20			LRS2	cal							Yes
0141	UNe Slave Cal	23:07	426			HPF	cal							Yes
lrs20000020_03	Hg_R	23:07	20			LRS2	cal							Yes
lrs20000021_01	Hg_B	23:09	15			LRS2	cal							Yes
lrs20000021_02	Hg_B	23:10	15			LRS2	cal							Yes
lrs20000021_03	Hg_B	23:11	15			LRS2	cal							Yes
0142	UNe Slave Cal	23:15	426			HPF	cal							Yes
virus0000022_01	flat_ldls_long	23:18	15			VIRUS	cal							Yes
virus0000022_02	flat_ldls_long	23:19	15			VIRUS	cal							Yes
virus0000022_03	flat_ldls_long	23:21	15			VIRUS	cal							Yes
0143	UNe Slave Cal	23:22	426			HPF	cal							Yes
virus0000023_01	Cd-A	23:22	15			VIRUS	cal							Yes
virus0000023_02	Cd-A	23:24	15			VIRUS	cal							Yes
virus0000023_03	Cd-A	23:25	15			VIRUS	cal							Yes
virus0000024_01	Hg	23:26	15			VIRUS	cal							Yes
virus0000024_02	Hg	23:28	15			VIRUS	cal							Yes
virus0000024_03	Hg	23:29	15			VIRUS	cal							Yes
lrs20000022_01	bias	23:31	0			LRS2	cal							Yes
virus0000025_01	bias	23:31	0			VIRUS	cal							Yes
lrs20000022_02	bias	23:31	0			LRS2	cal							Yes
virus0000025_02	bias	23:31	0			VIRUS	cal							Yes
lrs20000022_03	bias	23:32	0			LRS2	cal							Yes
virus0000025_03	bias	23:32	0			VIRUS	cal							Yes
lrs20000022_04	bias	23:33	0			LRS2	cal							Yes
virus0000025_04	bias	23:33	0			VIRUS	cal							Yes
lrs20000022_05	bias	23:34	0			LRS2	cal							Yes
virus0000025_05	bias	23:34	0			VIRUS	cal							Yes
lrs20000022_06	bias	23:35	0			LRS2	cal							Yes
virus0000025_06	bias	23:35	0			VIRUS	cal							Yes
lrs20000022_07	bias	23:35	0			LRS2	cal							Yes
virus0000025_07	bias	23:36	0			VIRUS	cal							Yes
lrs20000022_08	bias	23:36	0			LRS2	cal							Yes
virus0000025_08	bias	23:37	0			VIRUS	cal							Yes
lrs20000022_09	bias	23:37	0			LRS2	cal							Yes
virus0000025_09	bias	23:38	0			VIRUS	cal							Yes
lrs20000022_10	bias	23:38	0			LRS2	cal							Yes
virus0000025_10	bias	23:38	0			VIRUS	cal							Yes
lrs20000022_11	bias	23:39	0			LRS2	cal							Yes
virus0000025_11	bias	23:39	0			VIRUS	cal							Yes
lrs20000023_01	dark	23:40	360			LRS2	cal							Yes
virus0000026_01	dark	23:40	360			VIRUS	cal							Yes
lrs20000023_02	dark	23:47	360			LRS2	cal							Yes
virus0000026_02	dark	23:47	360			VIRUS	cal							Yes
lrs20000023_03	dark	23:53	360			LRS2	cal							Yes
virus0000026_03	dark	23:54	360			VIRUS	cal							Yes