HET Night Report Reader

Civil Date	Ephemerides
2025-05-21	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:55	02:47	03:21	10:24	10:58	11:50	08:36	-
Night Length	7:03		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin	Nathan McReynolds

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:48	22.8	20.9	07:52	dew point	06:04
08:13	19.5	19.2	10:51	twilight	02:38
Total Time Open					8:42

Program	Night Priority	Science
03:21	Science
07:07	Idle due to weather (condensation on tracker)
08:43	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:21	03:02	0.44	0.68	195	+1463	22.0	22.4	22.1	68	14	First of Night
↪ Comments			segments 3:1, 4:1, 5:1, 6:1, 6:2, 7:1, 8:1 brought in by hand. Bottom left section of the mirror looked as if it had been "stretched" out, some segments caught after initial groc corrections, but edge mirrors had to be manually pulled in by ~10arcsecs
08:13	08:17	1.33	2.49	-75	+3724	19.6	19.3	19.2	173	12	Post-Observing
08:17	08:43	0.44	0.66	190	+3716	19.7	19.2	19.2	176	12	Stack/Re-stack
10:44	10:51	0.58	0.92	80	+3889	18.3	18.7	18.8	184	13	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6486	07:07-08:13	01:06	P0 target lost due to dew point closure caused by bad dew point sensor and super cooled tracker.

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
0001	twilight	01:52	298.2			HPF	cal							Yes
lrs20000001_01	skyflat	02:01	7			LRS2	cal							Yes
lrs20000002_01	skyflat	02:02	10			LRS2	cal							Yes
lrs20000003_01	skyflat	02:03	13			LRS2	cal							Yes
lrs20000004_01	skyflat	02:05	16			LRS2	cal							Yes
lrs20000005_01	skyflat	02:06	22			LRS2	cal							Yes
lrs20000006_01	skyflat	02:07	30			LRS2	cal							Yes
virus0000001_01	skyflat	02:11	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:12	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:13	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:15	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:16	26			VIRUS	cal							Yes
0002	LFC Cal	02:27	106.5			HPF	cal							Yes
0003	LFC Cal	02:30	106.5			HPF	cal							Yes
0004	LFC Cal	02:32	106.5			HPF	cal							Yes
0005	test_drk_donotuse	03:03	10.7			HPF	cal							Yes
0006	HR5676_tell_std	03:07	117.2	4.0		HPF	telluric	1.53	1.08	20.86	0.50			Yes
lrs20000007_01	BD+262606_056_E	03:14	60	5.0		LRS2	spec	1.64	1.12	22.39	0.76			Yes
lrs20000008_01	BD+262606_066_E	03:18	30	2.5		LRS2	spec	1.51	1.00	21.18	0.93			Yes
lrs20000009_01	parallel	03:23	300			LRS2	sci							Yes
virus0000006_01	parallel	03:23	300	5.0	M25-2-004	VIRUS	sci	1.65	1.08	21.86	0.87			Yes
0007	LFC Cal	03:24	106.5			HPF	cal							Yes
0008	LFC Cal	03:26	106.5			HPF	cal							Yes
0009	LFC Cal	03:32	106.5			HPF	cal							Yes
lrs20000010_01	parallel	03:32	300			LRS2	sci							Yes
virus0000007_01	parallel	03:32	300	4.0	M25-2-004	VIRUS	sci	1.88	1.21	21.84	0.86			Yes
0010	LFC Cal	03:34	106.5			HPF	cal							Yes
0011	LFC Cal	03:40	106.5			HPF	cal							Yes
lrs20000011_01	parallel	03:40	300			LRS2	sci							Yes
virus0000008_01	parallel	03:40	300	3.0	M25-2-004	VIRUS	sci	1.66	1.01	21.85	0.86			Yes
0012	LFC Cal	03:43	106.5			HPF	cal							Yes
0013	LFC Cal	03:48	106.5			HPF	cal							Yes
lrs20000012_01	parallel	03:48	300			LRS2	sci							Yes
virus0000009_01	parallel	03:48	300	3.0	M25-2-004	VIRUS	sci	1.84	0.99	21.86	0.84			Yes
0014	LFC Cal	03:51	106.5			HPF	cal							Yes
0015	LFC Cal	03:59	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:59	300			VIRUS	sci							Yes
lrs20000013_01	parallel	03:59	300	6.0	PSU25-2-007	LRS2-R	sci	1.73	0.98	21.11	1.02			P4
0016	LFC Cal	04:02	106.5			HPF	cal							Yes
0017	LFC Cal	04:05	106.5			HPF	cal							Yes
0018	LFC Cal	04:10	106.5			HPF	cal							Yes
lrs20000014_01	parallel	04:10	1000			LRS2	sci							Yes
virus0000011_01	parallel	04:10	1000	6.3	UT25-2-014	VIRUS	sci	1.63	0.93	22.26	0.81			Yes
0019	LFC Cal	04:12	106.5			HPF	cal							Yes
0020	LFC Cal	04:15	106.5			HPF	cal							Yes
lrs20000014_02	parallel	04:28	1000			LRS2	sci							Yes
virus0000011_02	parallel	04:28	1000	0.3	UT25-2-014	VIRUS	sci	1.84	0.98	22.25	0.83			Yes
lrs20000014_03	parallel	04:46	1000			LRS2	sci							Yes
virus0000011_03	parallel	04:46	1000	1.3	UT25-2-014	VIRUS	sci	1.84	1.06	22.27	0.82			Yes
0021	LFC Cal	05:04	106.5			HPF	cal							Yes
0022	LFC Cal	05:10	106.5			HPF	cal							Yes
virus0000012_01	parallel	05:10	900			VIRUS	sci							Yes
lrs20000015_01	parallel	05:10	900	8.0	UT25-2-003	LRS2-B	sci	1.67	1.05	21.85	0.62			Yes
0023	LFC Cal	05:12	106.5			HPF	cal							Yes
0024	LFC Cal	05:15	106.5			HPF	cal							Yes
0025	LFC Cal	05:26	106.5			HPF	cal							Yes
0026	LFC Cal	05:30	106.5			HPF	cal							Yes
virus0000013_01	parallel	05:30	900			VIRUS	sci							Yes
lrs20000016_01	parallel	05:30	900	5.0	UT25-2-003	LRS2-B	sci	1.78	1.15	21.92	0.82			Yes
0027	LFC Cal	05:32	106.5			HPF	cal							Yes
0028	LFC Cal	05:35	106.5			HPF	cal							Yes
0029	LFC Cal	05:47	106.5			HPF	cal							Yes
0030	LFC Cal	05:50	106.5			HPF	cal							Yes
virus0000014_01	parallel	05:50	900			VIRUS	sci							Yes
lrs20000017_01	parallel	05:50	900	5.0	UT25-2-003	LRS2-B	sci	1.79	1.17	21.59	0.89			Yes
0031	LFC Cal	05:53	106.5			HPF	cal							Yes
0032	LFC Cal	05:55	106.5			HPF	cal							Yes
0033	LFC Cal	06:06	106.5			HPF	cal							Yes
0034	LFC Cal	06:11	106.5			HPF	cal							Yes
virus0000015_01	parallel	06:11	300			VIRUS	sci							Yes
lrs20000018_01	parallel	06:11	300	6.0	PSU25-2-007	LRS2-R	sci	1.85	1.09	20.87	0.91			P4
0035	LFC Cal	06:13	106.5			HPF	cal							Yes
0036	LFC Cal	06:17	106.5			HPF	cal							Yes
0037	test_drk_donotuse	06:21	10.7			HPF	cal							Yes
0038	parallel	06:22	969.1	5.8	UT25-2-008	HPF	sci	1.72	0.82	20.21	0.77	74		Yes
virus0000016_01	parallel	06:22	2047			VIRUS	sci							Yes
0039	parallel	06:39	969.1	0.8	UT25-2-008	HPF	sci	1.75	0.80	20.23	0.80	85		Yes
virus0000017_01	1802271_034_E	07:01	60	6.0		VIRUS	spec	2.01	0.92	21.94	0.82			Yes
virus0000017_02	1802271_034_E	07:03	60	1.0		VIRUS	spec	2.03	0.88	21.92	0.82			Yes
virus0000017_03	1802271_034_E	07:06	60	2.0		VIRUS	spec	2.04	0.90	21.92	0.82			Yes
0040	LFC Cal	07:12	106.5			HPF	cal							Yes
lrs20000019_01	parallel	07:12	1000			LRS2	sci							Yes
virus0000018_01	parallel	07:12	1000	4.3	UT25-2-014	VIRUS	sci	1.82	0.99	22.41	0.89		Last exp was canceled @ 07:52 due to the weather	No
0041	LFC Cal	07:14	106.5			HPF	cal							Yes
0042	LFC Cal	07:16	106.5			HPF	cal							Yes
lrs20000019_02	parallel	07:29	1000			LRS2	sci							Yes
virus0000018_02	parallel	07:29	1000	1.3	UT25-2-014	VIRUS	sci	2.11	0.85	22.34	0.90			No
lrs20000019_03	parallel	07:47	1000			LRS2	sci							Yes
virus0000018_03	parallel	07:47	1000	1.3	UT25-2-014	VIRUS	sci	2.32	1.37	22.32	0.89			No
0043	test_drk_donotuse	08:45	10.7			HPF	cal							Yes
virus0000019_01	parallel	08:47	1959			VIRUS	sci							Yes
0044	parallel	08:48	915.9	4.7	PSU25-2-010	HPF	sci	1.51	0.99	20.68	0.57	110		Yes
0045	parallel	09:04	915.9	0.7	PSU25-2-010	HPF	sci	1.48	1.09	20.57	0.62	118		Yes
0046	LFC Cal	09:22	106.5			HPF	cal							Yes
0047	LFC Cal	09:25	106.5			HPF	cal							Yes
virus0000020_01	parallel	09:25	3000			VIRUS	sci							Yes
lrs20000020_01	parallel	09:25	3000	6.0	UT25-2-019	LRS2-R	sci	1.46	0.74	20.85	0.92			Yes
0048	LFC Cal	09:28	106.5			HPF	cal							Yes
0049	LFC Cal	09:30	106.5			HPF	cal							Yes
0050	LFC Cal	10:16	106.5			HPF	cal							Yes
0051	test_drk_donotuse	10:20	10.7			HPF	cal							Yes
0052	parallel	10:21	74.5	5.8	PSU25-2-005	HPF	sci	1.45	0.97	21.03	0.68	371		Yes
0053	LFC Cal	10:23	106.5			HPF	cal							Yes
0054	test_drk_donotuse	10:27	10.7			HPF	cal							Yes
0055	parallel	10:28	969.1	5.8	PSU25-2-008	HPF	sci	1.38	1.05	20.04	0.72	160		Yes
virus0000021_01	parallel	10:28	1023			VIRUS	sci							Yes
lrs20000021_01	bias	10:46	0			LRS2	cal							Yes
virus0000022_01	bias	10:47	0			VIRUS	cal							Yes
virus0000023_01	Cd-A	10:51	15		ENG25-2-002	VIRUS	cal							Yes
virus0000024_01	Hg	10:52	15		ENG25-2-002	VIRUS	cal							Yes
0056	Dark	11:01	319.5			HPF	cal							Yes
0057	Quartz FCU	11:12	74.5			HPF	cal							Yes
0058	Quartz FCU	11:14	74.5			HPF	cal							Yes
0059	Quartz FCU	11:16	74.5			HPF	cal							Yes
0060	Quartz FCU	11:17	74.5			HPF	cal							Yes
0061	Quartz FCU	11:19	74.5			HPF	cal							Yes
0062	Quartz FCU	11:21	74.5			HPF	cal							Yes
0063	Quartz FCU	11:23	74.5			HPF	cal							Yes
0064	Alpha Bright Cal	11:25	85.2			HPF	cal							Yes
0065	Alpha Bright Cal	11:27	85.2			HPF	cal							Yes
0066	Alpha Bright Cal	11:29	85.2			HPF	cal							Yes
0067	Alpha Bright Cal	11:31	85.2			HPF	cal							Yes
0068	LFC FCU	11:34	106.5			HPF	cal							Yes
0069	LFC FCU	11:36	106.5			HPF	cal							Yes
0070	LFC FCU	11:38	106.5			HPF	cal							Yes
0071	LFC FCU	11:41	106.5			HPF	cal							Yes
0072	LFC FCU	11:43	106.5			HPF	cal							Yes
0073	LFC FCU	11:45	106.5			HPF	cal							Yes
0074	LFC Cal	11:48	106.5			HPF	cal							Yes
0075	LFC Cal	11:50	106.5			HPF	cal							Yes
0076	Etalon Cal	11:58	159.8			HPF	cal							Yes
0077	Etalon Cal	12:01	159.8			HPF	cal							Yes
0078	Etalon Cal	12:04	159.8			HPF	cal							Yes
0079	Etalon Cal	12:08	159.8			HPF	cal							Yes
0080	UNe Slave Cal	12:11	426			HPF	cal							Yes
0081	UNe Slave Cal	12:19	426			HPF	cal							Yes
0082	UNe Slave Cal	12:27	426			HPF	cal							Yes
0083	UNe Slave Cal	12:35	426			HPF	cal							Yes
0084	UNe Slave Cal	12:42	426			HPF	cal							Yes
0085	UNe Slave Cal	12:50	426			HPF	cal							Yes
0078	LFC Cal	21:47	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:51	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:52	20			VIRUS	cal							Yes
virus0009901_01	bias	21:53	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:54	20			LRS2	cal							Yes
virus0009902_01	dark	21:55	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:56	38			LRS2	cal							Yes
lrs20009903_01	FeAr_R	21:58	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	21:59	15			LRS2	cal							Yes
0079	Dark	22:07	319.5			HPF	cal							Yes
0080	Quartz FCU	22:13	74.5			HPF	cal							Yes
0081	Quartz FCU	22:15	74.5			HPF	cal							Yes
0082	Quartz FCU	22:17	74.5			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	Alpha Bright Cal	22:26	85.2			HPF	cal							Yes
0088	Alpha Bright Cal	22:28	85.2			HPF	cal							Yes
0089	Alpha Bright Cal	22:30	85.2			HPF	cal							Yes
0090	Alpha Bright Cal	22:32	85.2			HPF	cal							Yes
0091	LFC FCU	22:35	106.5			HPF	cal							Yes
0092	LFC FCU	22:37	106.5			HPF	cal							Yes
0093	LFC Cal	22:40	106.5			HPF	cal							Yes
0094	LFC Cal	22:42	106.5			HPF	cal							Yes
0095	Etalon Cal	22:45	159.8			HPF	cal							Yes
0096	UNe Slave Cal	22:48	426			HPF	cal							Yes
lrs20000019_01	flat_Qth_R	22:50	15			LRS2	cal							Yes
lrs20000019_02	flat_Qth_R	22:51	15			LRS2	cal							Yes
lrs20000019_03	flat_Qth_R	22:53	15			LRS2	cal							Yes
lrs20000019_04	flat_Qth_R	22:54	15			LRS2	cal							Yes
lrs20000019_05	flat_Qth_R	22:55	15			LRS2	cal							Yes
0097	UNe Slave Cal	22:56	426			HPF	cal							Yes
lrs20000020_01	flat_ldls_long_B	22:56	20			LRS2	cal							Yes
lrs20000020_02	flat_ldls_long_B	22:58	20			LRS2	cal							Yes
lrs20000020_03	flat_ldls_long_B	22:59	20			LRS2	cal							Yes
lrs20000021_01	Cd-A_B	23:00	38			LRS2	cal							Yes
lrs20000021_02	Cd-A_B	23:02	38			LRS2	cal							Yes
0098	UNe Slave Cal	23:04	426			HPF	cal							Yes
lrs20000021_03	Cd-A_B	23:04	38			LRS2	cal							Yes
lrs20000022_01	FeAr_R	23:05	15			LRS2	cal							Yes
lrs20000022_02	FeAr_R	23:07	15			LRS2	cal							Yes
lrs20000022_03	FeAr_R	23:08	15			LRS2	cal							Yes
lrs20000023_01	Hg_R	23:09	20			LRS2	cal							Yes
lrs20000023_02	Hg_R	23:10	20			LRS2	cal							Yes
0099	UNe Slave Cal	23:12	426			HPF	cal							Yes
lrs20000023_03	Hg_R	23:12	20			LRS2	cal							Yes
lrs20000024_01	Hg_B	23:13	15			LRS2	cal							Yes
lrs20000024_02	Hg_B	23:14	15			LRS2	cal							Yes
lrs20000024_03	Hg_B	23:15	15			LRS2	cal							Yes
0100	UNe Slave Cal	23:19	426			HPF	cal							Yes
virus0000022_01	flat_ldls_long	23:22	15			VIRUS	cal							Yes
virus0000022_02	flat_ldls_long	23:23	15			VIRUS	cal							Yes
virus0000022_03	flat_ldls_long	23:25	15			VIRUS	cal							Yes
virus0000023_01	Cd-A	23:26	15			VIRUS	cal							Yes
0101	UNe Slave Cal	23:27	426			HPF	cal							Yes
virus0000023_02	Cd-A	23:28	15			VIRUS	cal							Yes
virus0000023_03	Cd-A	23:29	15			VIRUS	cal							Yes
virus0000024_01	Hg	23:30	15			VIRUS	cal							Yes
virus0000024_02	Hg	23:32	15			VIRUS	cal							Yes
virus0000024_03	Hg	23:33	15			VIRUS	cal							Yes
lrs20000025_01	bias	23:35	0			LRS2	cal							Yes
lrs20000025_02	bias	23:35	0			LRS2	cal							Yes
virus0000025_01	bias	23:35	0			VIRUS	cal							Yes
virus0000025_02	bias	23:36	0			VIRUS	cal							Yes
lrs20000025_03	bias	23:36	0			LRS2	cal							Yes
lrs20000025_04	bias	23:37	0			LRS2	cal							Yes
virus0000025_03	bias	23:37	0			VIRUS	cal							Yes
virus0000025_04	bias	23:37	0			VIRUS	cal							Yes
lrs20000025_05	bias	23:38	0			LRS2	cal							Yes
virus0000025_05	bias	23:38	0			VIRUS	cal							Yes
lrs20000025_06	bias	23:39	0			LRS2	cal							Yes
virus0000025_06	bias	23:39	0			VIRUS	cal							Yes
lrs20000025_07	bias	23:40	0			LRS2	cal							Yes
virus0000025_07	bias	23:40	0			VIRUS	cal							Yes
lrs20000025_08	bias	23:41	0			LRS2	cal							Yes
virus0000025_08	bias	23:41	0			VIRUS	cal							Yes
lrs20000025_09	bias	23:42	0			LRS2	cal							Yes
virus0000025_09	bias	23:42	0			VIRUS	cal							Yes
lrs20000025_10	bias	23:42	0			LRS2	cal							Yes
virus0000025_10	bias	23:43	0			VIRUS	cal							Yes
lrs20000025_11	bias	23:43	0			LRS2	cal							Yes
virus0000025_11	bias	23:44	0			VIRUS	cal							Yes
lrs20000026_01	dark	23:44	360			LRS2	cal							Yes
virus0000026_01	dark	23:44	360			VIRUS	cal							Yes
lrs20000026_02	dark	23:51	360			LRS2	cal							Yes
virus0000026_02	dark	23:51	360			VIRUS	cal							Yes
lrs20000026_03	dark	23:58	360			LRS2	cal							Yes
virus0000026_03	dark	23:58	360			VIRUS	cal							Yes