HET Night Report Reader

Civil Date	Ephemerides
2026-07-27	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:01	02:52	03:25	10:39	11:13	12:04	-	11:03
Night Length	7:14		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
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
01:53	27.5	26.1	11:30	twilight	09:37
Total Time Open					9:37

Program	Night Priority	Science
03:25	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:32	03:00	0.48	0.73	-440	-2341	26.2	26.5	26.7	145	9	First of Night
07:51	08:19					23.4	23.8	23.9	196	14	Stack/Re-stack
11:23	11:29	0.60	0.92	-390	-95	22.9	23.0	23.2	202	6	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6696	05:00-05:00	00:00	Two loud and prolonged dome screeches around azimuth 252 moving clockwise
6697	10:00-10:00	00:00	Lost dome audio, no easy way to get it back

Ops Comments	none

TO Comments	Clear and calm night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000029_03	Hg_B	00:00	15			LRS2	cal							Yes
0001	UNe Slave Cal	00:04	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:07	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:08	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	00:09	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	00:11	15			VIRUS	cal							Yes
0002	UNe Slave Cal	00:12	426			HPF	cal							Yes
virus0000002_02	Cd-A	00:12	15			VIRUS	cal							Yes
virus0000002_03	Cd-A	00:14	15			VIRUS	cal							Yes
virus0000003_01	Hg	00:15	15			VIRUS	cal							Yes
virus0000003_02	Hg	00:16	15			VIRUS	cal							Yes
virus0000003_03	Hg	00:18	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:19	0			LRS2	cal							Yes
virus0000004_01	bias	00:19	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:20	0			LRS2	cal							Yes
virus0000004_02	bias	00:20	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:21	0			LRS2	cal							Yes
virus0000004_03	bias	00:21	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:22	0			LRS2	cal							Yes
virus0000004_04	bias	00:22	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:23	0			LRS2	cal							Yes
virus0000004_05	bias	00:23	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:24	0			LRS2	cal							Yes
virus0000004_06	bias	00:24	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:24	0			LRS2	cal							Yes
virus0000004_07	bias	00:25	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:25	0			LRS2	cal							Yes
virus0000004_08	bias	00:26	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:26	0			LRS2	cal							Yes
virus0000004_09	bias	00:26	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:27	0			LRS2	cal							Yes
virus0000004_10	bias	00:27	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:28	0			LRS2	cal							Yes
virus0000004_11	bias	00:28	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:29	360			LRS2	cal							Yes
virus0000005_01	dark	00:29	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:36	360			LRS2	cal							Yes
virus0000005_02	dark	00:36	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:42	360			LRS2	cal							Yes
virus0000005_03	dark	00:43	360			VIRUS	cal							Yes
0003	twilight	01:58	298.2			HPF	cal					335		Yes
lrs20000003_01	skyflat	02:06	7			LRS2	cal							Yes
lrs20000004_01	skyflat	02:07	10			LRS2	cal							Yes
lrs20000005_01	skyflat	02:08	13			LRS2	cal							Yes
lrs20000006_01	skyflat	02:10	16			LRS2	cal							Yes
lrs20000007_01	skyflat	02:11	22			LRS2	cal							Yes
lrs20000008_01	skyflat	02:12	30			LRS2	cal							Yes
virus0000006_01	skyflat	02:16	7			VIRUS	cal							Yes
virus0000007_01	skyflat	02:17	10			VIRUS	cal							Yes
virus0000008_01	skyflat	02:18	14			VIRUS	cal							Yes
virus0000009_01	skyflat	02:20	18			VIRUS	cal							Yes
virus0000010_01	skyflat	02:21	26			VIRUS	cal							Yes
0004	parallel	03:07	969.1	6.8	UT26-2-007	HPF	sci	2.01	1.90	19.20	0.80	106		P4
virus0000011_01	parallel	03:07	1000			VIRUS	sci							Yes
virus0000012_01	parallel	03:30	1051			VIRUS	sci							Yes
0005	parallel	03:31	308.9	6.9	UT26-2-004	HPF	sci	1.99	1.37	19.21	0.86	186		P4
0006	parallel	03:36	308.9	0.9	UT26-2-004	HPF	sci	2.00	1.30	19.19	0.87	192		P4
0007	parallel	03:42	308.9	-0.1	UT26-2-004	HPF	sci	2.06	1.25	19.18	0.87	187		P4
0008	parallel	03:55	969.1	7.8	UT26-2-007	HPF	sci	1.83	1.62	19.23	0.88	16		P4
virus0000013_01	parallel	03:55	1000			VIRUS	sci							Yes
0009	Etalon Cal	04:21	159.8			HPF	cal							Yes
virus0000014_01	parallel	04:24	1000			VIRUS	sci							Yes
0010	parallel	04:25	969.1	13.8	UT26-2-007	HPF	sci	1.80	1.31	18.70	0.90	49		P4
0011	parallel	04:50	969.1	9.8	UT26-2-007	HPF	sci	1.63	1.18	19.16	0.84	32		P4
virus0000015_01	parallel	04:50	1000			VIRUS	sci							Yes
0012	Etalon Cal	05:11	159.8			HPF	cal							Yes
0013	parallel	05:16	969.1	8.8	UT26-2-007	HPF	sci	1.85	1.41	18.63	0.91	133		P4
virus0000016_01	parallel	05:16	1000			VIRUS	sci							Yes
0014	Etalon Cal	05:35	159.8			HPF	cal							Yes
virus0000017_01	parallel	05:40	1000			VIRUS	sci							Yes
0015	parallel	05:41	969.1	8.8	UT26-2-007	HPF	sci	1.98	1.29	19.39	0.91	30		P4
0016	parallel	06:03	575.1	6.4	UT26-2-009	HPF	sci	1.85	1.27	19.28	0.95	129		P4
virus0000018_01	parallel	06:03	1233.2			VIRUS	sci							Yes
0017	parallel	06:14	575.1	0.4	UT26-2-009	HPF	sci	1.88	1.17	19.29	0.94	132		P4
0018	Etalon Cal	06:25	159.8			HPF	cal							Yes
0019	parallel	06:29	969.1	5.8	UT26-2-007	HPF	sci	1.86	1.42	19.23	0.90	47		P4
virus0000019_01	parallel	06:29	1000			VIRUS	sci							Yes
0020	Etalon Cal	06:48	159.8			HPF	cal							Yes
0021	Etalon Cal	06:51	159.8			HPF	cal							Yes
virus0000020_01	parallel	06:54	2073.4			VIRUS	sci							Yes
0022	parallel	06:55	649.6	10.2	UT26-2-009	HPF	sci	2.00	1.31	19.03	0.84	106		P4
0023	parallel	07:06	649.6	0.2	UT26-2-009	HPF	sci	2.05	1.38	19.08	0.87	114		P4
0024	parallel	07:18	649.6	1.2	UT26-2-009	HPF	sci	2.00	1.63	19.14	0.86	122		P4
lrs20000009_01	parallel	07:37	180	8.0	UT26-2-017	LRS2-B	sci	2.43	1.44	18.88	0.85			P4
virus0000021_01	parallel	07:45	360			VIRUS	sci							Yes
lrs20000010_01	parallel	07:45	360	5.0	UT26-2-017	LRS2-R	sci	1.90	1.09	18.88	0.93			P4
0025	Etalon Cal	08:20	159.8			HPF	cal							Yes
0026	parallel	08:26	724.2	6.9	UT26-2-009	HPF	sci	1.73	1.28	18.30	0.88	163		P4
virus0000022_01	parallel	08:26	1531.4			VIRUS	sci							Yes
0027	parallel	08:39	724.2	0.9	UT26-2-009	HPF	sci	1.69	1.47	18.21	0.72	142		P4
virus0000023_01	parallel	08:57	1000			VIRUS	sci							Yes
0028	parallel	08:58	969.1	6.8	UT26-2-007	HPF	sci	1.83	1.11	19.26	0.82	23		P4
0029	HR422_tell_std	09:20	330.2	5.5		HPF	telluric	1.89	1.31	19.34	0.71			Yes
0030	Etalon Cal	09:27	159.8			HPF	cal							Yes
virus0000024_01	parallel	09:33	1000			VIRUS	sci							Yes
0031	parallel	09:34	969.1	8.8	UT26-2-007	HPF	sci	1.75	1.19	18.59	0.93	72		P4
virus0000025_01	parallel	09:57	1401.4			VIRUS	sci							Yes
0032	parallel	09:58	308.9	7.9	UT26-2-004	HPF	sci	1.84	1.47	18.79	0.91	150		P4
0033	parallel	10:04	308.9	0.9	UT26-2-004	HPF	sci	1.88	1.75	18.79	0.92	148		P4
0034	parallel	10:09	308.9	0.9	UT26-2-004	HPF	sci	1.95	1.55	18.78	0.90	147		P4
0035	parallel	10:15	308.9	-0.1	UT26-2-004	HPF	sci	2.09	1.68	18.74	0.84	126		P4
0036	Etalon Cal	10:22	159.8			HPF	cal							Yes
0037	Etalon Cal	10:27	159.8			HPF	cal							Yes
lrs20000011_01	parallel	10:27	180	7.0	UT26-2-017	LRS2-B	sci	1.87		19.37	0.74			P4
virus0000026_01	parallel	10:33	360			VIRUS	sci							Yes
0038	Etalon Cal	10:34	159.8			HPF	cal							Yes
lrs20000012_01	parallel	10:34	360	4.0	UT26-2-017	LRS2-R	sci	2.28		19.25	0.93			P4
0039	Etalon Cal	10:37	159.8			HPF	cal							Yes
0040	Etalon Cal	10:41	159.8			HPF	cal							Yes
virus0000027_01	parallel	10:48	2000			VIRUS	eng							Yes
0041	Teegarden	10:49	969.1	8.8	ENG26-2-000	HPF	eng	1.95		19.53	1.00	217		Yes
0042	Teegarden	11:06	969.1	0.8	ENG26-2-000	HPF	eng	1.77		18.15	1.02	229		Yes
lrs20000013_01	bias	11:24	0			LRS2	cal							Yes
virus0000028_01	bias	11:25	0			VIRUS	cal							Yes
virus0000029_01	Cd-A	11:26	15		ENG26-2-002	VIRUS	cal							Yes
virus0000030_01	Hg	11:27	15		ENG26-2-002	VIRUS	cal							Yes
0043	Dark	11:37	319.5			HPF	cal							Yes
0044	Quartz FCU	11:49	74.5			HPF	cal							Yes
0045	Quartz FCU	11:51	74.5			HPF	cal							Yes
0046	Quartz FCU	11:53	74.5			HPF	cal							Yes
0047	Quartz FCU	11:54	74.5			HPF	cal							Yes
0048	Quartz FCU	11:56	74.5			HPF	cal							Yes
0049	Quartz FCU	11:58	74.5			HPF	cal							Yes
0050	Quartz FCU	12:00	74.5			HPF	cal							Yes
0051	Alpha Bright Cal	12:02	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	12:04	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	12:06	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	12:08	85.2			HPF	cal							Yes
0055	Etalon Cal	12:20	159.8			HPF	cal							Yes
0056	Etalon Cal	12:23	159.8			HPF	cal							Yes
0057	Etalon Cal	12:27	159.8			HPF	cal							Yes
0058	Etalon Cal	12:30	159.8			HPF	cal							Yes
0059	UNe Slave Cal	12:33	852			HPF	cal							Yes
0060	UNe Slave Cal	12:48	852			HPF	cal							Yes
0061	UNe Slave Cal	13:04	852			HPF	cal							Yes
0073	Etalon Cal	22:15	159.8			HPF	cal							Yes
lrs20009909_01	bias	22:22	0			LRS2	cal							Yes
virus0009907_01	flat_Qth	22:23	20			VIRUS	cal							Yes
virus0009908_01	bias	22:24	0			VIRUS	cal							Yes
lrs20009910_01	flat_ldls_long_B	22:25	20			LRS2	cal							Yes
virus0009909_01	dark	22:26	15			VIRUS	cal							Yes
lrs20009911_01	Cd-A_B	22:27	29			LRS2	cal							Yes
lrs20009912_01	FeAr_R	22:29	15			LRS2	cal							Yes
lrs20009913_01	Hg_B	22:30	15			LRS2	cal							Yes
0074	Dark	22:42	319.5			HPF	cal							Yes
0075	Quartz FCU	22:49	74.5			HPF	cal							Yes
0076	Quartz FCU	22:50	74.5			HPF	cal							Yes
0077	Quartz FCU	22:52	74.5			HPF	cal							Yes
0078	Quartz FCU	22:54	74.5			HPF	cal							Yes
0079	Quartz FCU	22:56	74.5			HPF	cal							Yes
0080	Quartz FCU	22:58	74.5			HPF	cal							Yes
0081	Quartz FCU	22:59	74.5			HPF	cal							Yes
0082	Alpha Bright Cal	23:02	85.2			HPF	cal							Yes
0083	Alpha Bright Cal	23:04	85.2			HPF	cal							Yes
0084	Alpha Bright Cal	23:05	85.2			HPF	cal							Yes
0085	Alpha Bright Cal	23:07	85.2			HPF	cal							Yes
0086	Etalon Cal	23:20	159.8			HPF	cal							Yes
0087	Etalon Cal	23:23	159.8			HPF	cal							Yes
0088	Etalon Cal	23:26	159.8			HPF	cal							Yes
0089	Etalon Cal	23:29	159.8			HPF	cal							Yes
0090	UNe Slave Cal	23:33	426			HPF	cal							Yes
lrs20000024_01	flat_Qth_R	23:35	15			LRS2	cal							Yes
lrs20000024_02	flat_Qth_R	23:36	15			LRS2	cal							Yes
lrs20000024_03	flat_Qth_R	23:38	15			LRS2	cal							Yes
lrs20000024_04	flat_Qth_R	23:39	15			LRS2	cal							Yes
lrs20000024_05	flat_Qth_R	23:40	15			LRS2	cal							Yes
0091	UNe Slave Cal	23:41	426			HPF	cal							Yes
lrs20000025_01	flat_ldls_long_B	23:41	20			LRS2	cal							Yes
lrs20000025_02	flat_ldls_long_B	23:43	20			LRS2	cal							Yes
lrs20000025_03	flat_ldls_long_B	23:44	20			LRS2	cal							Yes
lrs20000026_01	Cd-A_B	23:45	29			LRS2	cal							Yes
lrs20000026_02	Cd-A_B	23:47	29			LRS2	cal							Yes
lrs20000026_03	Cd-A_B	23:48	29			LRS2	cal							Yes
0092	UNe Slave Cal	23:49	426			HPF	cal							Yes
lrs20000027_01	FeAr_R	23:50	15			LRS2	cal							Yes
lrs20000027_02	FeAr_R	23:51	15			LRS2	cal							Yes
lrs20000027_03	FeAr_R	23:52	15			LRS2	cal							Yes
lrs20000028_01	Hg_R	23:54	20			LRS2	cal							Yes
lrs20000028_02	Hg_R	23:55	20			LRS2	cal							Yes
0093	UNe Slave Cal	23:56	426			HPF	cal							Yes
lrs20000028_03	Hg_R	23:56	20			LRS2	cal							Yes
lrs20000029_01	Hg_B	23:58	15			LRS2	cal							Yes
lrs20000029_02	Hg_B	23:59	15			LRS2	cal							Yes

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