HET Night Report Reader

Civil Date	Ephemerides
2026-03-01	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:02	01:46	02:14	12:01	12:29	13:14	-	12:49
Night Length	9:47		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
00:59			12:28	twilight	11:29
Total Time Open					11:29

Program	Night Priority	Science
02:14	Science
08:55	Idle due to weather (clouds)
09:12	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:27	01:57	1.09	1.95	70	-6863	20.3	19.7	19.5	288	12	First of Night
10:31	10:52					17.8	17.5	17.7	273	12	Stack/Re-stack
12:20	12:26	1.00	1.45	90	-4489	17.6	17.0	17.2	280	8	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6647	03:36-03:45	00:09	It tooks forever to update after acceptance of new targets.

TO Comments	Clear and calm night with stable temperature.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000025_03	FeAr_R	00:01	15			LRS2	cal							Yes
lrs20000026_01	Hg_R	00:02	20			LRS2	cal							Yes
lrs20000026_02	Hg_R	00:03	20			LRS2	cal							Yes
0001	UNe Slave Cal	00:04	426			HPF	cal							Yes
lrs20000026_03	Hg_R	00:04	20			LRS2	cal							Yes
lrs20000027_01	Hg_B	00:06	15			LRS2	cal							Yes
lrs20000027_02	Hg_B	00:07	15			LRS2	cal							Yes
lrs20000027_03	Hg_B	00:08	15			LRS2	cal							Yes
0002	UNe Slave Cal	00:11	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:15	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:16	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	00:18	15			VIRUS	cal							Yes
0003	UNe Slave Cal	00:19	426			HPF	cal							Yes
virus0000002_01	Cd-A	00:19	15			VIRUS	cal							Yes
virus0000002_02	Cd-A	00:20	15			VIRUS	cal							Yes
virus0000002_03	Cd-A	00:22	15			VIRUS	cal							Yes
virus0000003_01	Hg	00:23	15			VIRUS	cal							Yes
virus0000003_02	Hg	00:25	15			VIRUS	cal							Yes
virus0000003_03	Hg	00:26	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:28	360			LRS2	cal							Yes
virus0000004_01	dark	00:28	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:34	360			LRS2	cal							Yes
virus0000004_02	dark	00:34	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:41	360			LRS2	cal							Yes
virus0000004_03	dark	00:41	360			VIRUS	cal							Yes
0004	twilight	00:59	298.2			HPF	cal					506		Yes
lrs20000002_01	skyflat	01:06	7			LRS2	cal							Yes
lrs20000003_01	skyflat	01:07	10			LRS2	cal							Yes
lrs20000004_01	skyflat	01:08	13			LRS2	cal							Yes
lrs20000005_01	skyflat	01:09	16			LRS2	cal							Yes
lrs20000006_01	skyflat	01:11	22			LRS2	cal							Yes
lrs20000007_01	skyflat	01:12	30			LRS2	cal							Yes
virus0000005_01	skyflat	01:15	7			VIRUS	cal							Yes
virus0000006_01	skyflat	01:16	10			VIRUS	cal							Yes
virus0000007_01	skyflat	01:18	14			VIRUS	cal							Yes
virus0000008_01	skyflat	01:19	18			VIRUS	cal							Yes
virus0000009_01	skyflat	01:20	26			VIRUS	cal							Yes
lrs20000008_01	bias	01:43	0			LRS2	cal							Yes
virus0000010_01	bias	01:43	0			VIRUS	cal							Yes
lrs20000008_02	bias	01:44	0			LRS2	cal							Yes
virus0000010_02	bias	01:44	0			VIRUS	cal							Yes
lrs20000008_03	bias	01:45	0			LRS2	cal							Yes
virus0000010_03	bias	01:45	0			VIRUS	cal							Yes
lrs20000008_04	bias	01:45	0			LRS2	cal							Yes
virus0000010_04	bias	01:46	0			VIRUS	cal							Yes
lrs20000008_05	bias	01:46	0			LRS2	cal							Yes
virus0000010_05	bias	01:47	0			VIRUS	cal							Yes
lrs20000008_06	bias	01:47	0			LRS2	cal							Yes
virus0000010_06	bias	01:47	0			VIRUS	cal							Yes
lrs20000008_07	bias	01:48	0			LRS2	cal							Yes
virus0000010_07	bias	01:48	0			VIRUS	cal							Yes
lrs20000008_08	bias	01:49	0			LRS2	cal							Yes
virus0000010_08	bias	01:49	0			VIRUS	cal							Yes
lrs20000008_09	bias	01:50	0			LRS2	cal							Yes
virus0000010_09	bias	01:50	0			VIRUS	cal							Yes
lrs20000008_10	bias	01:51	0			LRS2	cal							Yes
virus0000010_10	bias	01:51	0			VIRUS	cal							Yes
lrs20000008_11	bias	01:52	0			LRS2	cal							Yes
virus0000010_11	bias	01:52	0			VIRUS	cal							Yes
lrs20000009_01	QID 2873	02:02	180	5.0	UT26-1-016	LRS2-B	sci	1.60	1.00	18.13	0.95			P4
0005	LFC Cal	02:03	106.5			HPF	cal							Yes
0006	LFC Cal	02:10	106.5			HPF	cal							Yes
virus0000011_01	parallel	02:10	360			VIRUS	sci							Yes
lrs20000010_01	QID 2874	02:10	360	5.0	UT26-1-016	LRS2-R	sci	1.39	1.01	17.95	1.12			P4
0007	LFC Cal	02:13	106.5			HPF	cal							Yes
0008	LFC Cal	02:17	106.5			HPF	cal							Yes
virus0000012_01	parallel	02:21	1984			VIRUS	sci							Yes
0009	QID 1600	02:22	617.7	5.7	UT26-1-007	HPF	sci	1.36	0.82	17.20	1.15	31		Yes
0010	QID 1600	02:33	617.7	0.7	UT26-1-007	HPF	sci	1.31	0.82	17.26	1.16	34		Yes
0011	QID 1600	02:44	617.7	0.7	UT26-1-007	HPF	sci	1.37	0.78	17.28	1.16	29		Yes
0012	LFC Cal	02:56	106.5			HPF	cal							Yes
virus0000013_01	parallel	03:01	2083			VIRUS	sci							Yes
0013	QID 2636	03:02	649.6	8.2	UT26-1-003	HPF	sci	1.26	0.71	18.83	0.93	132		P4
0014	QID 2636	03:13	649.6	0.2	UT26-1-003	HPF	sci	1.23	0.73	18.80	0.94	130		P4
0015	QID 2636	03:25	649.6	1.2	UT26-1-003	HPF	sci	1.23	0.76	18.59	0.78	111		P4
0016	QID 2982	03:53	969.1	7.8	UT26-1-010	HPF	sci	1.41	0.86	19.05		101		Yes
virus0000014_01	parallel	03:53	2047			VIRUS	sci							Yes
0017	QID 2982	04:10	969.1	1.8	UT26-1-010	HPF	sci	1.28	0.83	18.98		100		Yes
0018	LFC Cal	04:28	106.5			HPF	cal							Yes
virus0000015_01	parallel	04:33	1060			VIRUS	sci							Yes
0019	QID 2531	04:34	308.9	6.9	UT26-1-009	HPF	sci	1.32	0.99	17.81	0.96	126		P4
0020	QID 2531	04:40	308.9	0.9	UT26-1-009	HPF	sci	1.38	1.04	17.70	0.98	115		P4
0021	QID 2531	04:45	308.9	0.9	UT26-1-009	HPF	sci	1.40	1.04	17.60	1.00	110		P4
0022	QID 2976	04:56	649.6	5.2	UT26-1-010	HPF	sci	1.33	0.83	17.09	0.80	370		Yes
virus0000016_01	parallel	04:56	2083			VIRUS	sci							Yes
0023	QID 2976	05:08	649.6	1.2	UT26-1-010	HPF	sci	1.35	1.11	17.25	0.90	406		Yes
0024	QID 2976	05:20	649.6	0.2	UT26-1-010	HPF	sci	1.40	0.98	17.22	0.89	387		Yes
0025	LFC Cal	05:32	106.5			HPF	cal							Yes
0026	LFC Cal	05:38	106.5			HPF	cal							Yes
lrs20000011_01	QID 2863	05:38	180	8.0	UT26-1-016	LRS2-B	sci	1.42	0.88	18.38	0.94			P4
virus0000017_01	parallel	05:45	360			VIRUS	sci							Yes
0027	LFC Cal	05:46	106.5			HPF	cal							Yes
lrs20000012_01	QID 2864	05:46	360	5.0	UT26-1-016	LRS2-R	sci	1.42	0.76	18.44	1.03			P4
0028	LFC Cal	05:48	106.5			HPF	cal							Yes
0029	QID 2627	05:59	969.1	6.8	UT26-1-003	HPF	sci	1.37	0.81	18.93	0.91	20		P4
virus0000018_01	parallel	05:59	2047			VIRUS	sci							Yes
0030	QID 2627	06:16	969.1	0.8	UT26-1-003	HPF	sci	1.57	0.66	18.98	0.93	19		P4
0031	LFC Cal	06:41	106.5			HPF	cal							Yes
lrs20000013_01	QID 2897	06:41	180	9.0	UT26-1-016	LRS2-B	sci	1.48	0.64	18.65	0.67			P4
virus0000019_01	parallel	06:47	360			VIRUS	sci							Yes
0032	LFC Cal	06:48	106.5			HPF	cal							Yes
lrs20000014_01	QID 2898	06:48	360	4.0	UT26-1-016	LRS2-R	sci	1.45	0.69	18.84	0.88			P4
0033	LFC Cal	06:50	106.5			HPF	cal							Yes
0034	QID 2999	07:00	969.1	5.8	PSU26-1-023	HPF	sci	1.45	0.84	18.78	0.99	269		Yes
virus0000020_01	parallel	07:00	2047			VIRUS	sci							Yes
0035	QID 2999	07:17	969.1	0.8	PSU26-1-023	HPF	sci	1.45		18.80	0.98	255		Yes
0036	LFC Cal	07:35	106.5			HPF	cal							Yes
0037	QID 2983	07:41	969.1	7.8	UT26-1-010	HPF	sci	1.37	0.86	17.58	0.89	183		Yes
virus0000021_01	parallel	07:41	2047			VIRUS	sci							Yes
0038	QID 2983	07:58	969.1	0.8	UT26-1-010	HPF	sci	1.18	0.77	17.28	0.86	165		Yes
0039	LFC Cal	08:16	106.5			HPF	cal							Yes
virus0000022_01	parallel	08:21	2047			VIRUS	sci							Yes
0040	QID 2980	08:22	969.1	7.8	UT26-1-010	HPF	sci	1.43	0.81	19.13	0.92	53		Yes
0041	QID 2980	08:39	969.1	0.8	UT26-1-010	HPF	sci	1.54	0.84	19.23	0.92	53		Yes
0042	LFC Cal	08:57	106.5			HPF	cal							Yes
0043	QID 1835	09:16	340.8	4.3	PSU26-1-010	HPF	sci	1.52	1.03	19.33	0.67	436		P4
virus0000023_01	parallel	09:16	374			VIRUS	sci							Yes
lrs20000015_01	FEIGE34_056_W	09:28	60	6.0		LRS2	spec	1.42	0.93	18.13	0.96			Yes
lrs20000016_01	FEIGE34_066_W	09:32	60	3.0		LRS2	spec	1.23	0.92	18.24	0.91			Yes
lrs20000017_01	QID 2887	09:37	180	4.0	UT26-1-016	LRS2-B	sci	1.40	0.94	17.18	0.95			P4
0044	LFC Cal	09:38	106.5			HPF	cal							Yes
0045	LFC Cal	09:45	106.5			HPF	cal							Yes
virus0000024_01	parallel	09:45	360			VIRUS	sci							Yes
lrs20000018_01	QID 2888	09:45	360	5.0	UT26-1-016	LRS2-R	sci	1.29	0.98	16.68	0.94			P4
0046	LFC Cal	09:48	106.5			HPF	cal							Yes
0047	QID 2997	09:57	969.1	6.8	PSU26-1-023	HPF	sci	1.56	0.85	19.21	0.92	97		Yes
virus0000025_01	parallel	09:57	2047			VIRUS	sci							Yes
0048	QID 2997	10:14	969.1	0.8	PSU26-1-023	HPF	sci	1.59	0.94	19.28	0.93	98		Yes
0049	LFC Cal	10:32	106.5			HPF	cal							Yes
0050	QID 2748	10:59	42.6	7.3	UT26-1-014	HPF	sci	1.38	0.83	19.26	0.97	522		P4
0051	LFC Cal	11:01	106.5			HPF	cal							Yes
0052	QID 2975	11:06	969.1	6.8	UT26-1-010	HPF	sci	1.39	0.77	19.24	0.98	172		Yes
virus0000026_01	parallel	11:06	2047			VIRUS	sci							Yes
0053	QID 2975	11:24	969.1	0.8	UT26-1-010	HPF	sci	1.34	0.82	19.29	0.98	192		Yes
0054	LFC Cal	11:41	106.5			HPF	cal							Yes
0055	QID 2974	11:46	969.1	5.8	UT26-1-010	HPF	sci	1.44	0.83	19.19	0.93	103		Yes
virus0000027_01	parallel	11:46	2047			VIRUS	sci							Yes
0056	QID 2974	12:03	969.1	1.8	UT26-1-010	HPF	sci	1.44	0.77	19.15	0.93	109		Yes
0057	LFC Cal	12:21	106.5			HPF	cal							Yes
lrs20000019_01	bias	12:24	0			LRS2	cal							Yes
virus0000028_01	bias	12:25	0			VIRUS	cal							Yes
virus0000029_01	Cd-A	12:28	15		ENG26-1-002	VIRUS	cal							Yes
virus0000030_01	Hg	12:29	15		ENG26-1-002	VIRUS	cal							Yes
0058	Dark	12:38	319.5			HPF	cal							Yes
0059	Quartz FCU	12:49	74.5			HPF	cal							Yes
0060	Quartz FCU	12:51	74.5			HPF	cal							Yes
0061	Quartz FCU	12:53	74.5			HPF	cal							Yes
0062	Quartz FCU	12:55	74.5			HPF	cal							Yes
0063	Quartz FCU	12:56	74.5			HPF	cal							Yes
0064	Quartz FCU	12:58	74.5			HPF	cal							Yes
0065	Quartz FCU	13:00	74.5			HPF	cal							Yes
0066	Alpha Bright Cal	13:02	85.2			HPF	cal							Yes
0067	Alpha Bright Cal	13:04	85.2			HPF	cal							Yes
0068	Alpha Bright Cal	13:06	85.2			HPF	cal							Yes
0069	Alpha Bright Cal	13:08	85.2			HPF	cal							Yes
0070	LFC FCU	13:11	106.5			HPF	cal							Yes
0071	LFC FCU	13:13	106.5			HPF	cal							Yes
0072	LFC FCU	13:15	106.5			HPF	cal							Yes
0073	LFC FCU	13:18	106.5			HPF	cal							Yes
0074	LFC FCU	13:20	106.5			HPF	cal							Yes
0075	LFC FCU	13:22	106.5			HPF	cal							Yes
0076	LFC Cal	13:25	106.5			HPF	cal							Yes
0077	LFC Cal	13:28	106.5			HPF	cal							Yes
0078	Etalon Cal	13:35	159.8			HPF	cal							Yes
0079	Etalon Cal	13:39	159.8			HPF	cal							Yes
0080	Etalon Cal	13:42	159.8			HPF	cal							Yes
0081	Etalon Cal	13:45	159.8			HPF	cal							Yes
0082	UNe Slave Cal	13:49	426			HPF	cal							Yes
0083	UNe Slave Cal	13:56	426			HPF	cal							Yes
0084	UNe Slave Cal	14:04	426			HPF	cal							Yes
0085	UNe Slave Cal	14:12	426			HPF	cal							Yes
0086	UNe Slave Cal	14:20	426			HPF	cal							Yes
0087	UNe Slave Cal	14:27	426			HPF	cal							Yes
0087	LFC Cal	22:34	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:48	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:49	20			VIRUS	cal							Yes
virus0009901_01	bias	22:51	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:51	20			LRS2	cal							Yes
virus0009902_01	dark	22:53	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:53	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:55	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:56	15			LRS2	cal							Yes
0088	Dark	22:59	319.5			HPF	cal							Yes
0089	Quartz FCU	23:05	74.5			HPF	cal							Yes
0090	Quartz FCU	23:07	74.5			HPF	cal							Yes
0091	Quartz FCU	23:09	74.5			HPF	cal							Yes
0092	Quartz FCU	23:10	74.5			HPF	cal							Yes
0093	Quartz FCU	23:12	74.5			HPF	cal							Yes
0094	Quartz FCU	23:14	74.5			HPF	cal							Yes
0095	Quartz FCU	23:16	74.5			HPF	cal							Yes
0096	Alpha Bright Cal	23:18	85.2			HPF	cal							Yes
0097	Alpha Bright Cal	23:20	85.2			HPF	cal							Yes
0098	Alpha Bright Cal	23:22	85.2			HPF	cal							Yes
0099	Alpha Bright Cal	23:24	85.2			HPF	cal							Yes
0100	LFC FCU	23:27	106.5			HPF	cal							Yes
0101	LFC FCU	23:29	106.5			HPF	cal							Yes
0102	LFC Cal	23:32	106.5			HPF	cal							Yes
0103	LFC Cal	23:34	106.5			HPF	cal							Yes
0104	Etalon Cal	23:37	159.8			HPF	cal							Yes
0105	UNe Slave Cal	23:40	426			HPF	cal							Yes
lrs20000022_01	flat_Qth_R	23:43	15			LRS2	cal							Yes
lrs20000022_02	flat_Qth_R	23:45	15			LRS2	cal							Yes
lrs20000022_03	flat_Qth_R	23:46	15			LRS2	cal							Yes
lrs20000022_04	flat_Qth_R	23:47	15			LRS2	cal							Yes
0106	UNe Slave Cal	23:48	426			HPF	cal							Yes
lrs20000022_05	flat_Qth_R	23:48	15			LRS2	cal							Yes
lrs20000023_01	flat_ldls_long_B	23:50	20			LRS2	cal							Yes
lrs20000023_02	flat_ldls_long_B	23:51	20			LRS2	cal							Yes
lrs20000023_03	flat_ldls_long_B	23:52	20			LRS2	cal							Yes
lrs20000024_01	Cd-A_B	23:54	29			LRS2	cal							Yes
lrs20000024_02	Cd-A_B	23:55	29			LRS2	cal							Yes
0107	UNe Slave Cal	23:56	426			HPF	cal							Yes
lrs20000024_03	Cd-A_B	23:57	29			LRS2	cal							Yes
lrs20000025_01	FeAr_R	23:58	15			LRS2	cal							Yes
lrs20000025_02	FeAr_R	23:59	15			LRS2	cal							Yes