HET Night Report Reader

Civil Date	Ephemerides
2025-03-28	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:20	02:05	02:34	11:27	11:56	12:42	12:45	00:48
Night Length	8:53		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin	Cassie Crowe

Overlaps		none

Other Personnel	Nathan McReynolds, Nicole Wilson

Guests	Josh Scally

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:26	19.5	17.1	00:38	engineering	00:12
01:13	18.6	16.2	12:27	twilight	11:14
Total Time Open					11:26

Program	Night Priority	Science
02:34	Science
02:43	Idle due to weather (clouds)
05:05	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	02:20	0.51	0.78	212	+3159	18.4	16.9	16.9	211	9	First of Night
11:44	12:02	1.34	1.93	242	+4363	13.4	13.9	14.0	290	25	Post-Observing
12:02	12:27				+5354	13.1	13.4	13.5	285	25	End of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
5755	06:21-06:23	00:02	TT stopped updating.

TO Comments	Some clouds then cleared.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000018_10	bias	00:00	0			LRS2	cal							Yes
virus0000027_10	bias	00:00	0			VIRUS	cal							Yes
lrs20000018_11	bias	00:01	0			LRS2	cal							Yes
virus0000027_11	bias	00:01	0			VIRUS	cal							Yes
lrs20000019_01	dark	00:02	360			LRS2	cal							Yes
virus0000028_01	dark	00:02	360			VIRUS	cal							Yes
lrs20000019_02	dark	00:08	360			LRS2	cal							Yes
virus0000028_02	dark	00:09	360			VIRUS	cal							Yes
lrs20000019_03	dark	00:15	360			LRS2	cal							Yes
virus0000028_03	dark	00:16	360			VIRUS	cal							Yes
0001	twilight	01:17	298.2			HPF	cal							Yes
lrs20000001_01	skyflat	01:24	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:25	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:26	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:27	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:29	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:30	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:33	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:34	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:35	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:37	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:38	26			VIRUS	cal							Yes
0002	LFC Cal	01:52	106.5			HPF	cal							Yes
0003	LFC Cal	01:54	106.5			HPF	cal							Yes
0004	LFC Cal	01:56	106.5			HPF	cal							Yes
0005	LFC Cal	02:22	106.5			HPF	cal							Yes
0006	parallel	02:26	159.8	6.3	UT25-1-012	HPF	sci	1.72	0.88	20.22	0.76	385		P4
0007	LFC Cal	02:30	106.5			HPF	cal							Yes
0008	test_drk_donotuse	02:33	10.7			HPF	cal							Yes
0009	parallel	02:34	32	5.5	UT25-1-012	HPF	sci	1.56	0.82	20.28	0.86	264		P4
0010	LFC Cal	02:36	106.5			HPF	cal							Yes
lrs20000007_01	HD37725_056_W	02:40	15	4.8		LRS2	spec	1.64	0.92	21.17	0.53			Yes
lrs20000008_01	HD37725_066_W	02:43	15	2.8		LRS2	spec	1.64	1.01	20.28	0.42			Yes
0011	LFC Cal	02:48	106.5			HPF	cal							Yes
lrs20000009_01	parallel	02:48	600			LRS2	sci							Yes
virus0000006_01	parallel	02:48	600	5.0	UT25-1-008	VIRUS	sci	1.69	0.69	21.60	0.47		passing clouds	No
0012	LFC Cal	02:51	106.5			HPF	cal							Yes
0013	LFC Cal	02:53	106.5			HPF	cal							Yes
lrs20000009_02	parallel	02:59	600			LRS2	sci							Yes
virus0000006_02	parallel	02:59	600	1.0	UT25-1-008	VIRUS	sci	1.43	0.76	21.61	0.53			No
lrs20000009_03	parallel	03:11	600			LRS2	sci							Yes
virus0000006_03	parallel	03:11	600	2.0	UT25-1-008	VIRUS	sci	1.37		21.57	0.48			No
0014	test_drk_donotuse	03:27	10.7			HPF	cal							Yes
0015	LFC Cal	03:51	106.5			HPF	cal							Yes
0016	LFC Cal	03:53	106.5			HPF	cal							Yes
0017	LFC Cal	03:56	106.5			HPF	cal							Yes
0018	LFC Cal	04:32	106.5			HPF	cal							Yes
lrs20000010_01	parallel	04:32	600			LRS2	sci							Yes
virus0000007_01	parallel	04:32	600	5.0	UT25-1-008	VIRUS	sci	1.56	0.73	21.55	0.78		clouds	No
0019	LFC Cal	04:35	106.5			HPF	cal							Yes
0020	LFC Cal	04:37	106.5			HPF	cal							Yes
lrs20000010_02	parallel	04:43	600			LRS2	sci							Yes
virus0000007_02	parallel	04:43	600	1.0	UT25-1-008	VIRUS	sci	1.45		21.40	0.48			No
lrs20000010_03	parallel	04:55	600			LRS2	sci							Yes
virus0000007_03	parallel	04:55	600	2.0	UT25-1-008	VIRUS	sci	1.53	0.80	21.24	0.90			No
0021	test_drk_donotuse	05:10	10.7			HPF	cal							Yes
0022	parallel	05:11	969.1	5.8	PSU25-1-016	HPF	sci	1.44	0.76	20.58	0.93	261		Yes
virus0000008_01	parallel	05:11	2047			VIRUS	sci							Yes
0023	parallel	05:28	969.1	0.8	PSU25-1-016	HPF	sci	1.46	0.82	20.62	0.95	279		Yes
0024	LFC Cal	05:46	106.5			HPF	cal							Yes
virus0000009_01	parallel	05:50	1800			VIRUS	sci							Yes
0025	LFC Cal	05:51	106.5			HPF	cal							Yes
lrs20000011_01	parallel	05:51	1800	7.0	UT25-1-001	LRS2-B	sci	1.82	0.76	21.77	0.63			Yes
0026	LFC Cal	05:53	106.5			HPF	cal							Yes
0027	LFC Cal	05:55	106.5			HPF	cal							Yes
0028	LFC Cal	06:26	106.5			HPF	cal							Yes
virus0000010_01	parallel	06:26	1800			VIRUS	sci							Yes
lrs20000012_01	parallel	06:26	1800	5.0	UT25-1-001	LRS2-R	sci	1.75	0.81	20.72	0.89			Yes
0029	LFC Cal	06:29	106.5			HPF	cal							Yes
0030	LFC Cal	06:31	106.5			HPF	cal							Yes
0031	test_drk_donotuse	07:02	10.7			HPF	cal							Yes
0032	parallel	07:03	969.1	6.8	UT25-1-024	HPF	sci	1.44	0.67	20.28	1.01	20		Yes
virus0000011_01	parallel	07:03	2047			VIRUS	sci							Yes
0033	parallel	07:20	969.1	0.8	UT25-1-024	HPF	sci	1.46	0.80	20.23	1.05	22		Yes
virus0000012_01	parallel	07:43	1500			VIRUS	sci							Yes
lrs20000013_01	parallel	07:43	1500	7.0	UT25-1-001	LRS2-R	sci	1.71	0.98	20.65	1.09			Yes
0034	LFC Cal	07:44	106.5			HPF	cal							Yes
0035	LFC Cal	07:46	106.5			HPF	cal							Yes
0036	LFC Cal	07:48	106.5			HPF	cal							Yes
0037	test_drk_donotuse	08:15	10.7			HPF	cal							Yes
0038	parallel	08:16	969.1	8.8	UT25-1-024	HPF	sci	1.72	0.93	20.20	0.93	26		Yes
virus0000013_01	parallel	08:16	2047			VIRUS	sci							Yes
0039	parallel	08:34	969.1	0.8	UT25-1-024	HPF	sci	1.70	1.02	20.13	0.93	22		Yes
0040	test_drk_donotuse	08:55	10.7			HPF	cal							Yes
0041	parallel	08:56	894.6	6.1	UT25-1-014	HPF	sci	1.71	1.11	20.15	0.92	64		Yes
virus0000014_01	parallel	08:56	5701			VIRUS	sci							Yes
0042	parallel	09:12	894.6	1.1	UT25-1-014	HPF	sci	1.70	1.16	20.18	0.93	71		Yes
0043	parallel	09:28	894.6	1.1	UT25-1-014	HPF	sci	1.68	1.13	20.18	0.93	73		Yes
0044	parallel	09:44	894.6	1.1	UT25-1-014	HPF	sci	1.64	1.27	20.24	0.89	68		Yes
0045	parallel	10:00	894.6	1.1	UT25-1-014	HPF	sci	1.63	1.27	20.28	0.85	59		Yes
0046	parallel	10:15	894.6	0.1	UT25-1-014	HPF	sci	1.64	0.96	20.31	0.83	53		Yes
0047	test_drk_donotuse	10:35	10.7			HPF	cal							Yes
virus0000015_01	parallel	10:37	2047			VIRUS	sci							Yes
0048	parallel	10:38	969.1	7.8	PSU25-1-016	HPF	sci	2.37	1.30	20.09	0.95	185		Yes
0049	parallel	10:55	969.1	0.8	PSU25-1-016	HPF	sci	2.25	1.45	20.25	0.98	212		Yes
0050	LFC Cal	11:13	106.5			HPF	cal							Yes
0051	test_drk_donotuse	11:15	10.7			HPF	cal							Yes
0052	HR6900_tell_std	11:16	330.2	5.5		HPF	telluric	2.04	1.07	20.25	0.94			Yes
virus0000016_01	parallel	11:28	804			VIRUS	sci							Yes
lrs20000014_01	parallel	11:28	804	6.6	G25-1-001	LRS2-B	sci	2.02	1.06	21.79	0.99			Yes
0053	LFC Cal	11:29	106.5			HPF	cal							Yes
0054	LFC Cal	11:31	106.5			HPF	cal							Yes
0055	LFC Cal	11:33	106.5			HPF	cal							Yes
lrs20000015_01	bias	11:45	0			LRS2	cal							Yes
virus0000017_01	bias	11:45	0			VIRUS	cal							Yes
virus0000018_01	Cd-A	11:50	15		ENG25-1-002	VIRUS	cal							Yes
virus0000019_01	Hg	11:51	15		ENG25-1-002	VIRUS	cal							Yes
0056	Dark	12:30	319.5			HPF	cal							Yes
0057	Quartz FCU	12:41	74.5			HPF	cal							Yes
0058	Quartz FCU	12:43	74.5			HPF	cal							Yes
0059	Quartz FCU	12:45	74.5			HPF	cal							Yes
0060	Quartz FCU	12:47	74.5			HPF	cal							Yes
0061	Quartz FCU	12:48	74.5			HPF	cal							Yes
0062	Quartz FCU	12:50	74.5			HPF	cal							Yes
0063	Quartz FCU	12:52	74.5			HPF	cal							Yes
0064	Alpha Bright Cal	12:54	85.2			HPF	cal							Yes
0065	Alpha Bright Cal	12:56	85.2			HPF	cal							Yes
0066	Alpha Bright Cal	12:58	85.2			HPF	cal							Yes
0067	Alpha Bright Cal	13:00	85.2			HPF	cal							Yes
0068	LFC FCU	13:03	106.5			HPF	cal							Yes
0069	LFC FCU	13:05	106.5			HPF	cal							Yes
0070	LFC FCU	13:07	106.5			HPF	cal							Yes
0071	LFC FCU	13:10	106.5			HPF	cal							Yes
0072	LFC FCU	13:12	106.5			HPF	cal							Yes
0073	LFC FCU	13:14	106.5			HPF	cal							Yes
0074	LFC Cal	13:17	106.5			HPF	cal							Yes
0075	LFC Cal	13:20	106.5			HPF	cal							Yes
0076	Etalon Cal	13:27	159.8			HPF	cal							Yes
0077	Etalon Cal	13:31	159.8			HPF	cal							Yes
0078	Etalon Cal	13:34	159.8			HPF	cal							Yes
0079	Etalon Cal	13:37	159.8			HPF	cal							Yes
0080	UNe Slave Cal	13:40	426			HPF	cal							Yes
0081	UNe Slave Cal	13:48	426			HPF	cal							Yes
0082	UNe Slave Cal	13:56	426			HPF	cal							Yes
0083	UNe Slave Cal	14:04	426			HPF	cal							Yes
0084	UNe Slave Cal	14:12	426			HPF	cal							Yes
0085	UNe Slave Cal	14:19	426			HPF	cal							Yes
0084	LFC Cal	21:19	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:09	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:10	20			VIRUS	cal							Yes
virus0009901_01	bias	22:11	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:12	20			LRS2	cal							Yes
virus0009902_01	dark	22:13	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:14	38			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:16	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:17	15			LRS2	cal							Yes
0085	Dark	22:25	319.5			HPF	cal							Yes
0086	Quartz FCU	22:31	74.5			HPF	cal							Yes
0087	Quartz FCU	22:33	74.5			HPF	cal							Yes
0088	Quartz FCU	22:35	74.5			HPF	cal							Yes
0089	Quartz FCU	22:36	74.5			HPF	cal							Yes
0090	Quartz FCU	22:38	74.5			HPF	cal							Yes
0091	Quartz FCU	22:40	74.5			HPF	cal							Yes
0092	Quartz FCU	22:42	74.5			HPF	cal							Yes
0093	Alpha Bright Cal	22:44	85.2			HPF	cal							Yes
0094	Alpha Bright Cal	22:46	85.2			HPF	cal							Yes
0095	Alpha Bright Cal	22:48	85.2			HPF	cal							Yes
0096	Alpha Bright Cal	22:50	85.2			HPF	cal							Yes
0097	LFC FCU	22:53	106.5			HPF	cal							Yes
0098	LFC FCU	22:55	106.5			HPF	cal							Yes
0099	LFC Cal	22:58	106.5			HPF	cal							Yes
0100	LFC Cal	23:00	106.5			HPF	cal							Yes
0101	Etalon Cal	23:03	159.8			HPF	cal							Yes
0102	UNe Slave Cal	23:06	426			HPF	cal							Yes
lrs20000012_01	flat_Qth_R	23:08	15			LRS2	cal							Yes
lrs20000012_02	flat_Qth_R	23:09	15			LRS2	cal							Yes
lrs20000012_03	flat_Qth_R	23:11	15			LRS2	cal							Yes
lrs20000012_04	flat_Qth_R	23:12	15			LRS2	cal							Yes
lrs20000012_05	flat_Qth_R	23:13	15			LRS2	cal							Yes
0103	UNe Slave Cal	23:14	426			HPF	cal							Yes
lrs20000013_01	flat_ldls_long_B	23:14	20			LRS2	cal							Yes
lrs20000013_02	flat_ldls_long_B	23:16	20			LRS2	cal							Yes
lrs20000013_03	flat_ldls_long_B	23:17	20			LRS2	cal							Yes
lrs20000014_01	Cd-A_B	23:18	38			LRS2	cal							Yes
lrs20000014_02	Cd-A_B	23:20	38			LRS2	cal							Yes
lrs20000014_03	Cd-A_B	23:21	38			LRS2	cal							Yes
0104	UNe Slave Cal	23:22	426			HPF	cal							Yes
lrs20000015_01	FeAr_R	23:23	15			LRS2	cal							Yes
lrs20000015_02	FeAr_R	23:24	15			LRS2	cal							Yes
lrs20000015_03	FeAr_R	23:25	15			LRS2	cal							Yes
lrs20000016_01	Hg_R	23:27	20			LRS2	cal							Yes
lrs20000016_02	Hg_R	23:28	20			LRS2	cal							Yes
lrs20000016_03	Hg_R	23:29	20			LRS2	cal							Yes
0105	UNe Slave Cal	23:30	426			HPF	cal							Yes
lrs20000017_01	Hg_B	23:31	15			LRS2	cal							Yes
lrs20000017_02	Hg_B	23:32	15			LRS2	cal							Yes
lrs20000017_03	Hg_B	23:33	15			LRS2	cal							Yes
0106	UNe Slave Cal	23:37	426			HPF	cal							Yes
virus0000024_01	flat_ldls_long	23:40	15			VIRUS	cal							Yes
virus0000024_02	flat_ldls_long	23:41	15			VIRUS	cal							Yes
virus0000024_03	flat_ldls_long	23:42	15			VIRUS	cal							Yes
virus0000025_01	Cd-A	23:44	15			VIRUS	cal							Yes
0107	UNe Slave Cal	23:45	426			HPF	cal							Yes
virus0000025_02	Cd-A	23:45	15			VIRUS	cal							Yes
virus0000025_03	Cd-A	23:47	15			VIRUS	cal							Yes
virus0000026_01	Hg	23:48	15			VIRUS	cal							Yes
virus0000026_02	Hg	23:49	15			VIRUS	cal							Yes
virus0000026_03	Hg	23:51	15			VIRUS	cal							Yes
lrs20000018_01	bias	23:52	0			LRS2	cal							Yes
virus0000027_01	bias	23:52	0			VIRUS	cal							Yes
lrs20000018_02	bias	23:53	0			LRS2	cal							Yes
virus0000027_02	bias	23:53	0			VIRUS	cal							Yes
lrs20000018_03	bias	23:54	0			LRS2	cal							Yes
virus0000027_03	bias	23:54	0			VIRUS	cal							Yes
lrs20000018_04	bias	23:55	0			LRS2	cal							Yes
virus0000027_04	bias	23:55	0			VIRUS	cal							Yes
lrs20000018_05	bias	23:55	0			LRS2	cal							Yes
virus0000027_05	bias	23:56	0			VIRUS	cal							Yes
lrs20000018_06	bias	23:56	0			LRS2	cal							Yes
virus0000027_06	bias	23:57	0			VIRUS	cal							Yes
lrs20000018_07	bias	23:57	0			LRS2	cal							Yes
virus0000027_07	bias	23:57	0			VIRUS	cal							Yes
lrs20000018_08	bias	23:58	0			LRS2	cal							Yes
virus0000027_08	bias	23:58	0			VIRUS	cal							Yes
lrs20000018_09	bias	23:59	0			LRS2	cal							Yes
virus0000027_09	bias	23:59	0			VIRUS	cal							Yes