HET Night Report Reader

Civil Date	Ephemerides
2026-05-11	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:49	02:38	03:12	10:32	11:05	11:56	09:11	-
Night Length	7:20		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Aiden Dillard Cassie Crowe	-	-

Overlaps
TO Overlap	RA Overlap
Justen Pautzke	-

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:45	17.4	15.7	11:14	twilight	09:29
Total Time Open					9:29

Program	Night Priority	Science
03:12	Science
05:01	Idle due to weather (could not finish last exp - end of track)
05:41	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:15	02:45	0.42	0.65	-380	+1135	16.3	16.2	16.0	124	11	First of Night
↪ Comments			Segments 55 and 28 appeared oblate, pistoned by 10.
09:05	09:23				+2814	16.2	17.0	17.1	142	1	Stack/Re-stack
11:08	11:12	0.54	0.81	-477	+3002	17.0	17.4	17.4	210	13	Post-Observing

Problem Reports					no PRs

Ops Comments	none

TO Comments	Clear all night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000018_02	dark	00:04	360			LRS2	cal							Yes
virus0000015_02	dark	00:05	360			VIRUS	cal							Yes
lrs20000018_03	dark	00:11	360			LRS2	cal							Yes
virus0000015_03	dark	00:11	360			VIRUS	cal							Yes
0001	twilight	01:47	298.2			HPF	cal					498		Yes
lrs20000001_01	skyflat	01:54	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:55	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:56	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:57	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:59	22			LRS2	cal							Yes
lrs20000006_01	skyflat	02:00	30			LRS2	cal							Yes
virus0000001_01	skyflat	02:04	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:05	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:06	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:07	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:09	26			VIRUS	cal							Yes
0002	HR5373_tell_std	02:51	330.2	5.5		HPF	telluric	2.08		20.39	0.68			Yes
0003	LFC Cal	03:05	106.5			HPF	cal							Yes
virus0000006_01	parallel	03:05	300			VIRUS	sci							Yes
lrs20000007_01	QID 582	03:05	300	8.0	PSU26-2-001	LRS2-R	sci	2.04		20.74	1.02			P4
0004	LFC Cal	03:07	106.5			HPF	cal							Yes
virus0000007_01	parallel	03:16	900			VIRUS	sci							Yes
0005	LFC Cal	03:17	106.5			HPF	cal							Yes
lrs20000008_01	QID 456	03:17	900	7.0	UT26-2-018	LRS2-R	sci	1.65		20.97	0.90			Yes
0006	LFC Cal	03:19	106.5			HPF	cal							Yes
0007	LFC Cal	03:21	106.5			HPF	cal							Yes
virus0000008_01	parallel	03:36	1800			VIRUS	sci							Yes
lrs20000009_01	QID 455	03:36	1800	4.0	UT26-2-018	LRS2-B	sci	1.79	1.29	22.05	0.78			Yes
0008	LFC Cal	03:37	106.5			HPF	cal							Yes
0009	LFC Cal	03:39	106.5			HPF	cal							Yes
0010	LFC Cal	03:41	106.5			HPF	cal							Yes
0011	LFC Cal	04:12	106.5			HPF	cal							Yes
virus0000009_01	parallel	04:12	1800			VIRUS	sci							Yes
lrs20000010_01	QID 463	04:12	1800	6.0	UT26-2-018	LRS2-B	sci	1.74	1.28	22.22	0.90			Yes
0012	LFC Cal	04:14	106.5			HPF	cal							Yes
0013	LFC Cal	04:17	106.5			HPF	cal							Yes
0014	LFC Cal	04:46	106.5			HPF	cal							Yes
virus0000010_01	parallel	04:46	900			VIRUS	sci							Yes
lrs20000011_01	QID 464	04:46	900	4.0	UT26-2-018	LRS2-R	sci	1.78	1.14	21.15	1.02			Yes
0015	LFC Cal	04:49	106.5			HPF	cal							Yes
0016	LFC Cal	04:51	106.5			HPF	cal							Yes
0017	LFC Cal	05:07	106.5			HPF	cal							Yes
lrs20000012_01	parallel	05:07	300			LRS2	sci							Yes
virus0000011_01	QID 53	05:07	300	6.0	M26-2-004	VIRUS	sci	1.52	1.33	21.83	0.91		could not finish last exp - end of track.	No
0018	LFC Cal	05:09	106.5			HPF	cal							Yes
lrs20000013_01	parallel	05:16	300			LRS2	sci							Yes
virus0000012_01	QID 54	05:16	300	4.0	M26-2-004	VIRUS	sci	1.41	0.85	21.80	0.87			No
0019	LFC Cal	05:17	106.5			HPF	cal							Yes
0020	LFC Cal	05:19	106.5			HPF	cal							Yes
0021	LFC Cal	05:25	106.5			HPF	cal							Yes
lrs20000014_01	parallel	05:25	300			LRS2	sci							Yes
virus0000013_01	QID 55	05:25	300	4.0	M26-2-004	VIRUS	sci	1.42	1.02	21.66	0.95			No
0022	LFC Cal	05:27	106.5			HPF	cal							Yes
lrs20000015_01	parallel	05:36	300			LRS2	sci							Yes
virus0000014_01	QID 56	05:36	300	6.0	M26-2-004	VIRUS	sci	1.36	0.84	21.87	0.92			No
0023	LFC Cal	05:37	106.5			HPF	cal							Yes
0024	LFC Cal	05:39	106.5			HPF	cal							Yes
0025	LFC Cal	05:42	106.5			HPF	cal							Yes
lrs20000016_01	parallel	05:42	360			LRS2	sci							Yes
virus0000015_01	QID 560	05:42	360	1.0	UT26-2-016	VIRUS	sci	1.40	0.85	21.87	0.92			Yes
0026	LFC Cal	05:45	106.5			HPF	cal							Yes
lrs20000016_02	parallel	05:49	360			LRS2	sci							Yes
virus0000015_02	QID 560	05:49	360	1.0	UT26-2-016	VIRUS	sci	1.73	1.17	21.82	0.92			Yes
lrs20000016_03	parallel	05:57	360			LRS2	sci							Yes
virus0000015_03	QID 560	05:57	360	2.0	UT26-2-016	VIRUS	sci	1.68	1.08	21.83	0.91			Yes
0027	LFC Cal	06:07	106.5			HPF	cal							Yes
lrs20000017_01	parallel	06:07	360			LRS2	sci							Yes
virus0000016_01	QID 554	06:07	360	4.0	UT26-2-016	VIRUS	sci	1.50	1.10	22.12	0.86			Yes
0028	LFC Cal	06:09	106.5			HPF	cal							Yes
lrs20000017_02	parallel	06:14	360			LRS2	sci							Yes
virus0000016_02	QID 554	06:14	360	1.0	UT26-2-016	VIRUS	sci	1.29	0.95	22.08	0.85			Yes
lrs20000017_03	parallel	06:21	360			LRS2	sci							Yes
virus0000016_03	QID 554	06:21	360	1.0	UT26-2-016	VIRUS	sci	1.37	1.06	22.02	0.85			Yes
virus0000017_01	parallel	06:32	2047			VIRUS	sci							Yes
0029	QID 675	06:33	969.1	5.8	UT26-2-007	HPF	sci	1.30	1.18	20.43	0.86	22		Yes
0030	QID 675	06:50	969.1	0.8	UT26-2-007	HPF	sci	1.46	1.27	20.43	0.86	25		Yes
virus0000018_01	parallel	07:12	2347			VIRUS	sci							Yes
0031	QID 867	07:13	724.2	6.9	UT26-2-009	HPF	sci	1.40	0.92	20.48	0.86	76		Yes
0032	QID 867	07:26	724.2	0.9	UT26-2-009	HPF	sci	1.40	1.21	20.47	0.85	79		Yes
0033	QID 867	07:39	724.2	0.9	UT26-2-009	HPF	sci	1.47	0.85	20.53	0.79	69		Yes
0034	LFC Cal	07:58	106.5			HPF	cal							Yes
lrs20000018_01	parallel	07:58	1000			LRS2	sci							Yes
virus0000019_01	QID 211	07:58	1000	6.3	PSU26-2-003	VIRUS	sci	1.64	1.39	22.02	0.99			Yes
0035	LFC Cal	08:00	106.5			HPF	cal							Yes
0036	LFC Cal	08:03	106.5			HPF	cal							Yes
lrs20000018_02	parallel	08:16	1000			LRS2	sci							Yes
virus0000019_02	QID 211	08:16	1000	1.3	PSU26-2-003	VIRUS	sci	1.54	0.82	22.00	0.99			Yes
lrs20000018_03	parallel	08:34	1000			LRS2	sci							Yes
virus0000019_03	QID 211	08:34	1000	1.3	PSU26-2-003	VIRUS	sci	1.63	1.02	21.99	0.96			Yes
0037	LFC Cal	08:56	106.5			HPF	cal							Yes
virus0000020_01	parallel	08:56	500			VIRUS	sci							Yes
lrs20000019_01	QID 893	08:56	500	5.7	PSU26-2-004	LRS2-B	sci	1.68	1.35	21.59	0.78			Yes
0038	LFC Cal	08:58	106.5			HPF	cal							Yes
0039	LFC Cal	09:01	106.5			HPF	cal							Yes
virus0000021_01	1808347_042_E	09:27	60	4.0		VIRUS	spec	2.78	2.60	21.84	0.88			Yes
virus0000021_02	1808347_042_E	09:29	60	1.0		VIRUS	spec	2.64	2.36	21.81	0.85			Yes
virus0000021_03	1808347_042_E	09:32	60	2.0		VIRUS	spec	2.13	1.60	21.76	0.86			Yes
lrs20000020_01	HD180609_056_E	09:37	30	3.5		LRS2	spec	1.90	1.22	21.63	1.00			Yes
lrs20000021_01	HD180609_066_E	09:40	30	3.5		LRS2	spec	1.91	1.22	20.85	1.01			Yes
virus0000022_01	parallel	09:46	1080			VIRUS	sci							Yes
0040	LFC Cal	09:47	106.5			HPF	cal							Yes
lrs20000022_01	QID 20	09:47	1080	6.0	PSU26-2-012	LRS2-B	sci	1.86	1.42	21.14	0.94			Yes
0041	LFC Cal	09:49	106.5			HPF	cal							Yes
0042	LFC Cal	09:51	106.5			HPF	cal							Yes
0043	LFC Cal	10:09	106.5			HPF	cal							Yes
virus0000023_01	parallel	10:09	300			VIRUS	sci							Yes
lrs20000023_01	QID 885	10:09	300	4.0	PSU26-2-004	LRS2-B	sci	1.66	1.14	21.22	0.91			No
0044	LFC Cal	10:11	106.5			HPF	cal							Yes
virus0000023_02	parallel	10:15	300			VIRUS	sci							Yes
lrs20000023_02	QID 885	10:15	300	1.0	PSU26-2-004	LRS2-B	sci	1.58	0.92	21.19	0.94			No
virus0000023_03	parallel	10:21	300			VIRUS	sci							Yes
lrs20000023_03	QID 885	10:21	300	1.0	PSU26-2-004	LRS2-B	sci	1.52	0.89	21.15	0.97			No
0045	QID 805	10:32	969.1	5.8	PSU26-2-015	HPF	sci	1.59	1.10	20.23	0.90	337		Yes
virus0000024_01	parallel	10:32	2047			VIRUS	sci							Yes
0046	QID 805	10:49	969.1	0.8	PSU26-2-015	HPF	sci	1.49	1.08	19.26	0.93	323		Yes
0047	LFC Cal	11:07	106.5			HPF	cal							Yes
lrs20000024_01	bias	11:08	0			LRS2	cal							Yes
virus0000025_01	bias	11:08	0			VIRUS	cal							Yes
virus0000026_01	Cd-A	11:12	15		ENG26-2-002	VIRUS	cal							Yes
virus0000027_01	Hg	11:14	15		ENG26-2-002	VIRUS	cal							Yes
0048	Dark	11:21	319.5			HPF	cal							Yes
0049	Quartz FCU	11:32	74.5			HPF	cal							Yes
0050	Quartz FCU	11:34	74.5			HPF	cal							Yes
0051	Quartz FCU	11:36	74.5			HPF	cal							Yes
0052	Quartz FCU	11:38	74.5			HPF	cal							Yes
0053	Quartz FCU	11:39	74.5			HPF	cal							Yes
0054	Quartz FCU	11:41	74.5			HPF	cal							Yes
0055	Quartz FCU	11:43	74.5			HPF	cal							Yes
0056	Alpha Bright Cal	11:45	85.2			HPF	cal							Yes
0057	Alpha Bright Cal	11:47	85.2			HPF	cal							Yes
0058	Alpha Bright Cal	11:49	85.2			HPF	cal							Yes
0059	Alpha Bright Cal	11:51	85.2			HPF	cal							Yes
0060	LFC FCU	11:54	106.5			HPF	cal							Yes
0061	LFC FCU	11:56	106.5			HPF	cal							Yes
0062	LFC FCU	11:58	106.5			HPF	cal							Yes
0063	LFC FCU	12:01	106.5			HPF	cal							Yes
0064	LFC FCU	12:03	106.5			HPF	cal							Yes
0065	LFC FCU	12:05	106.5			HPF	cal							Yes
0066	LFC Cal	12:08	106.5			HPF	cal							Yes
0067	LFC Cal	12:10	106.5			HPF	cal							Yes
0068	Etalon Cal	12:18	159.8			HPF	cal							Yes
0069	Etalon Cal	12:21	159.8			HPF	cal							Yes
0070	Etalon Cal	12:25	159.8			HPF	cal							Yes
0071	Etalon Cal	12:28	159.8			HPF	cal							Yes
0072	UNe Slave Cal	12:31	426			HPF	cal							Yes
0073	UNe Slave Cal	12:39	426			HPF	cal							Yes
0074	UNe Slave Cal	12:47	426			HPF	cal							Yes
0075	UNe Slave Cal	12:55	426			HPF	cal							Yes
0076	UNe Slave Cal	13:02	426			HPF	cal							Yes
0077	UNe Slave Cal	13:10	426			HPF	cal							Yes
0072	LFC Cal	21:55	106.5			HPF	cal							Yes
lrs20009909_01	bias	22:08	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:08	20			VIRUS	cal							Yes
virus0009901_01	bias	22:10	0			VIRUS	cal							Yes
lrs20009910_01	flat_ldls_long_B	22:11	20			LRS2	cal							Yes
virus0009902_01	dark	22:12	15			VIRUS	cal							Yes
lrs20009911_01	Cd-A_B	22:13	29			LRS2	cal							Yes
lrs20009912_01	FeAr_R	22:14	15			LRS2	cal							Yes
lrs20009913_01	Hg_B	22:16	15			LRS2	cal							Yes
0073	Dark	22:21	319.5			HPF	cal							Yes
0074	Quartz FCU	22:28	74.5			HPF	cal							Yes
0075	Quartz FCU	22:30	74.5			HPF	cal							Yes
0076	Quartz FCU	22:31	74.5			HPF	cal							Yes
0077	Quartz FCU	22:33	74.5			HPF	cal							Yes
0078	Quartz FCU	22:35	74.5			HPF	cal							Yes
0079	Quartz FCU	22:37	74.5			HPF	cal							Yes
0080	Quartz FCU	22:38	74.5			HPF	cal							Yes
0081	Alpha Bright Cal	22:41	85.2			HPF	cal							Yes
0082	Alpha Bright Cal	22:43	85.2			HPF	cal							Yes
0083	Alpha Bright Cal	22:45	85.2			HPF	cal							Yes
0084	Alpha Bright Cal	22:47	85.2			HPF	cal							Yes
0085	LFC FCU	22:49	106.5			HPF	cal							Yes
0086	LFC FCU	22:52	106.5			HPF	cal							Yes
0087	LFC Cal	22:54	106.5			HPF	cal							Yes
0088	LFC Cal	22:57	106.5			HPF	cal							Yes
0089	Etalon Cal	22:59	159.8			HPF	cal							Yes
0090	UNe Slave Cal	23:03	426			HPF	cal							Yes
lrs20000011_01	flat_Qth_R	23:04	15			LRS2	cal							Yes
lrs20000011_02	flat_Qth_R	23:05	15			LRS2	cal							Yes
lrs20000011_03	flat_Qth_R	23:07	15			LRS2	cal							Yes
lrs20000011_04	flat_Qth_R	23:08	15			LRS2	cal							Yes
lrs20000011_05	flat_Qth_R	23:09	15			LRS2	cal							Yes
lrs20000012_01	flat_ldls_long_B	23:10	20			LRS2	cal							Yes
0091	UNe Slave Cal	23:11	426			HPF	cal							Yes
lrs20000012_02	flat_ldls_long_B	23:12	20			LRS2	cal							Yes
lrs20000012_03	flat_ldls_long_B	23:13	20			LRS2	cal							Yes
lrs20000013_01	Cd-A_B	23:14	29			LRS2	cal							Yes
lrs20000013_02	Cd-A_B	23:16	29			LRS2	cal							Yes
lrs20000013_03	Cd-A_B	23:17	29			LRS2	cal							Yes
0092	UNe Slave Cal	23:18	426			HPF	cal							Yes
lrs20000014_01	FeAr_R	23:19	15			LRS2	cal							Yes
lrs20000014_02	FeAr_R	23:20	15			LRS2	cal							Yes
lrs20000014_03	FeAr_R	23:21	15			LRS2	cal							Yes
lrs20000015_01	Hg_R	23:22	20			LRS2	cal							Yes
lrs20000015_02	Hg_R	23:24	20			LRS2	cal							Yes
lrs20000015_03	Hg_R	23:25	20			LRS2	cal							Yes
0093	UNe Slave Cal	23:26	426			HPF	cal							Yes
lrs20000016_01	Hg_B	23:26	15			LRS2	cal							Yes
lrs20000016_02	Hg_B	23:28	15			LRS2	cal							Yes
lrs20000016_03	Hg_B	23:29	15			LRS2	cal							Yes
0094	UNe Slave Cal	23:34	426			HPF	cal							Yes
virus0000011_01	flat_ldls_long	23:35	15			VIRUS	cal							Yes
virus0000011_02	flat_ldls_long	23:37	15			VIRUS	cal							Yes
virus0000011_03	flat_ldls_long	23:38	15			VIRUS	cal							Yes
virus0000012_01	Cd-A	23:40	15			VIRUS	cal							Yes
virus0000012_02	Cd-A	23:41	15			VIRUS	cal							Yes
0095	UNe Slave Cal	23:42	426			HPF	cal							Yes
virus0000012_03	Cd-A	23:42	15			VIRUS	cal							Yes
virus0000013_01	Hg	23:44	15			VIRUS	cal							Yes
virus0000013_02	Hg	23:45	15			VIRUS	cal							Yes
virus0000013_03	Hg	23:47	15			VIRUS	cal							Yes
lrs20000017_01	bias	23:48	0			LRS2	cal							Yes
virus0000014_01	bias	23:48	0			VIRUS	cal							Yes
lrs20000017_02	bias	23:49	0			LRS2	cal							Yes
virus0000014_02	bias	23:49	0			VIRUS	cal							Yes
lrs20000017_03	bias	23:50	0			LRS2	cal							Yes
virus0000014_03	bias	23:50	0			VIRUS	cal							Yes
lrs20000017_04	bias	23:50	0			LRS2	cal							Yes
virus0000014_04	bias	23:51	0			VIRUS	cal							Yes
lrs20000017_05	bias	23:51	0			LRS2	cal							Yes
virus0000014_05	bias	23:52	0			VIRUS	cal							Yes
lrs20000017_06	bias	23:52	0			LRS2	cal							Yes
virus0000014_06	bias	23:53	0			VIRUS	cal							Yes
lrs20000017_07	bias	23:53	0			LRS2	cal							Yes
virus0000014_07	bias	23:53	0			VIRUS	cal							Yes
lrs20000017_08	bias	23:54	0			LRS2	cal							Yes
virus0000014_08	bias	23:54	0			VIRUS	cal							Yes
lrs20000017_09	bias	23:55	0			LRS2	cal							Yes
virus0000014_09	bias	23:55	0			VIRUS	cal							Yes
lrs20000017_10	bias	23:56	0			LRS2	cal							Yes
virus0000014_10	bias	23:56	0			VIRUS	cal							Yes
lrs20000017_11	bias	23:57	0			LRS2	cal							Yes
virus0000014_11	bias	23:57	0			VIRUS	cal							Yes
lrs20000018_01	dark	23:57	360			LRS2	cal							Yes
virus0000015_01	dark	23:58	360			VIRUS	cal							Yes

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