HET Night Report Reader

Civil Date	Ephemerides
2026-09-22	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:59	01:44	02:12	11:24	11:52	12:38	-	09:38
Night Length	9:12		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Justen Pautzke	-	-

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
02:25	19.1	19.0	03:13	clouds	00:48
Total Time Open					0:48

Program	Night Priority	Science
02:12	Idle due to weather (radar, clouds)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:29	02:59	0.38	0.57	-397	1181	18.7	19.1	19.1	110	21	First of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
5167	01:48-01:48	00:00	Cloud sensor is down	Fixed by logging into machine (left PR closed).

Ops Comments	none

TO Comments	Increasingly poor weather tonight. No major problems.

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	00:00	360			LRS2	cal							Yes
virus0000020_02	dark	00:00	360			VIRUS	cal							Yes
lrs20000018_03	dark	00:07	360			LRS2	cal							Yes
virus0000020_03	dark	00:07	360			VIRUS	cal							Yes
0001	LFC Cal	01:22	106.5			HPF	cal							Yes
0002	LFC Cal	01:24	106.5			HPF	cal							Yes
0003	LFC Cal	01:26	106.5			HPF	cal							Yes
0004	LFC Cal	06:41	106.5			HPF	cal							Yes
0005	LFC Cal	06:43	106.5			HPF	cal							Yes
0006	LFC Cal	06:46	106.5			HPF	cal							Yes
0007	LFC Cal	07:21	106.5			HPF	cal							Yes
0008	LFC Cal	07:24	106.5			HPF	cal							Yes
0009	LFC Cal	07:26	106.5			HPF	cal							Yes
0010	LFC Cal	08:35	106.5			HPF	cal							Yes
0011	LFC Cal	08:37	106.5			HPF	cal							Yes
0012	LFC Cal	08:40	106.5			HPF	cal							Yes
lrs20000001_01	bias	10:28	0			LRS2	cal							Yes
virus0000001_01	bias	10:29	0			VIRUS	cal							Yes
virus0000002_01	Cd-A	10:33	15		ENG26-3-002	VIRUS	cal							Yes
virus0000003_01	Hg	10:34	15		ENG26-3-002	VIRUS	cal							Yes
0013	Dark	10:42	319.5			HPF	cal							Yes
0014	Quartz FCU	10:54	74.5			HPF	cal							Yes
0015	Quartz FCU	10:56	74.5			HPF	cal							Yes
0016	Quartz FCU	10:57	74.5			HPF	cal							Yes
0017	Quartz FCU	10:59	74.5			HPF	cal							Yes
0018	Quartz FCU	11:01	74.5			HPF	cal							Yes
0019	Quartz FCU	11:03	74.5			HPF	cal							Yes
0020	Quartz FCU	11:05	74.5			HPF	cal							Yes
0021	Alpha Bright Cal	11:07	85.2			HPF	cal							Yes
0022	Alpha Bright Cal	11:09	85.2			HPF	cal							Yes
0023	Alpha Bright Cal	11:11	85.2			HPF	cal							Yes
0024	Alpha Bright Cal	11:13	85.2			HPF	cal							Yes
0025	LFC FCU	11:15	106.5			HPF	cal							Yes
0026	LFC FCU	11:18	106.5			HPF	cal							Yes
0027	LFC FCU	11:20	106.5			HPF	cal							Yes
0028	LFC FCU	11:22	106.5			HPF	cal							Yes
0029	LFC FCU	11:25	106.5			HPF	cal							Yes
0030	LFC FCU	11:27	106.5			HPF	cal							Yes
0031	LFC Cal	11:30	106.5			HPF	cal							Yes
0032	LFC Cal	11:32	106.5			HPF	cal							Yes
0033	Etalon Cal	11:40	159.8			HPF	cal							Yes
0034	Etalon Cal	11:43	159.8			HPF	cal							Yes
0035	Etalon Cal	11:46	159.8			HPF	cal							Yes
0036	Etalon Cal	11:50	159.8			HPF	cal							Yes
0037	UNe Slave Cal	11:53	426			HPF	cal							Yes
0038	UNe Slave Cal	12:01	426			HPF	cal							Yes
0039	UNe Slave Cal	12:09	426			HPF	cal							Yes
0040	UNe Slave Cal	12:16	426			HPF	cal							Yes
0041	UNe Slave Cal	12:24	426			HPF	cal							Yes
0042	UNe Slave Cal	12:32	426			HPF	cal							Yes
0053	LFC Cal	21:51	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:58	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:59	20			VIRUS	cal							Yes
virus0009901_01	bias	22:01	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:01	20			LRS2	cal							Yes
virus0009902_01	dark	22:03	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:03	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:05	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:06	15			LRS2	cal							Yes
virus0009903_01	dark	22:09	10			VIRUS	cal							Yes
virus0009904_01	bias	22:10	0			VIRUS	cal							Yes
0054	Dark	22:17	319.5			HPF	cal							Yes
0055	Quartz FCU	22:23	74.5			HPF	cal							Yes
0056	Quartz FCU	22:25	74.5			HPF	cal							Yes
0057	Quartz FCU	22:27	74.5			HPF	cal							Yes
0058	Quartz FCU	22:28	74.5			HPF	cal							Yes
0059	Quartz FCU	22:30	74.5			HPF	cal							Yes
0060	Quartz FCU	22:32	74.5			HPF	cal							Yes
0061	Quartz FCU	22:34	74.5			HPF	cal							Yes
0062	Alpha Bright Cal	22:36	85.2			HPF	cal							Yes
0063	Alpha Bright Cal	22:38	85.2			HPF	cal							Yes
0064	Alpha Bright Cal	22:40	85.2			HPF	cal							Yes
0065	Alpha Bright Cal	22:42	85.2			HPF	cal							Yes
0066	LFC FCU	22:45	106.5			HPF	cal							Yes
0067	LFC FCU	22:47	106.5			HPF	cal							Yes
0068	LFC Cal	22:50	106.5			HPF	cal							Yes
0069	LFC Cal	22:52	106.5			HPF	cal							Yes
0070	Etalon Cal	22:55	159.8			HPF	cal							Yes
0071	UNe Slave Cal	22:58	426			HPF	cal							Yes
lrs20000011_01	flat_Qth_R	23:00	15			LRS2	cal							Yes
lrs20000011_02	flat_Qth_R	23:01	15			LRS2	cal							Yes
lrs20000011_03	flat_Qth_R	23:03	15			LRS2	cal							Yes
lrs20000011_04	flat_Qth_R	23:04	15			LRS2	cal							Yes
lrs20000011_05	flat_Qth_R	23:05	15			LRS2	cal							Yes
0072	UNe Slave Cal	23:06	426			HPF	cal							Yes
lrs20000012_01	flat_ldls_long_B	23:06	20			LRS2	cal							Yes
lrs20000012_02	flat_ldls_long_B	23:08	20			LRS2	cal							Yes
lrs20000012_03	flat_ldls_long_B	23:09	20			LRS2	cal							Yes
lrs20000013_01	Cd-A_B	23:10	29			LRS2	cal							Yes
lrs20000013_02	Cd-A_B	23:12	29			LRS2	cal							Yes
lrs20000013_03	Cd-A_B	23:13	29			LRS2	cal							Yes
0073	UNe Slave Cal	23:14	426			HPF	cal							Yes
lrs20000014_01	FeAr_R	23:15	15			LRS2	cal							Yes
lrs20000014_02	FeAr_R	23:16	15			LRS2	cal							Yes
lrs20000014_03	FeAr_R	23:17	15			LRS2	cal							Yes
lrs20000015_01	Hg_R	23:18	20			LRS2	cal							Yes
lrs20000015_02	Hg_R	23:20	20			LRS2	cal							Yes
lrs20000015_03	Hg_R	23:21	20			LRS2	cal							Yes
0074	UNe Slave Cal	23:21	426			HPF	cal							Yes
lrs20000016_01	Hg_B	23:22	15			LRS2	cal							Yes
lrs20000016_02	Hg_B	23:23	15			LRS2	cal							Yes
lrs20000016_03	Hg_B	23:25	15			LRS2	cal							Yes
0075	UNe Slave Cal	23:29	426			HPF	cal							Yes
virus0000016_01	flat_ldls_long	23:31	15			VIRUS	cal							Yes
virus0000016_02	flat_ldls_long	23:32	15			VIRUS	cal							Yes
virus0000016_03	flat_ldls_long	23:34	15			VIRUS	cal							Yes
virus0000017_01	Cd-A	23:35	15			VIRUS	cal							Yes
0076	UNe Slave Cal	23:37	426			HPF	cal							Yes
virus0000017_02	Cd-A	23:37	15			VIRUS	cal							Yes
virus0000017_03	Cd-A	23:38	15			VIRUS	cal							Yes
virus0000018_01	Hg	23:39	15			VIRUS	cal							Yes
virus0000018_02	Hg	23:41	15			VIRUS	cal							Yes
virus0000018_03	Hg	23:42	15			VIRUS	cal							Yes
lrs20000017_01	bias	23:44	0			LRS2	cal							Yes
virus0000019_01	bias	23:44	0			VIRUS	cal							Yes
lrs20000017_02	bias	23:45	0			LRS2	cal							Yes
lrs20000017_03	bias	23:45	0			LRS2	cal							Yes
virus0000019_02	bias	23:45	0			VIRUS	cal							Yes
virus0000019_03	bias	23:46	0			VIRUS	cal							Yes
lrs20000017_04	bias	23:46	0			LRS2	cal							Yes
virus0000019_04	bias	23:47	0			VIRUS	cal							Yes
lrs20000017_05	bias	23:47	0			LRS2	cal							Yes
virus0000019_05	bias	23:47	0			VIRUS	cal							Yes
lrs20000017_06	bias	23:48	0			LRS2	cal							Yes
virus0000019_06	bias	23:48	0			VIRUS	cal							Yes
lrs20000017_07	bias	23:49	0			LRS2	cal							Yes
virus0000019_07	bias	23:49	0			VIRUS	cal							Yes
lrs20000017_08	bias	23:50	0			LRS2	cal							Yes
virus0000019_08	bias	23:50	0			VIRUS	cal							Yes
lrs20000017_09	bias	23:51	0			LRS2	cal							Yes
virus0000019_09	bias	23:51	0			VIRUS	cal							Yes
lrs20000017_10	bias	23:51	0			LRS2	cal							Yes
lrs20000017_11	bias	23:52	0			LRS2	cal							Yes
virus0000019_10	bias	23:52	0			VIRUS	cal							Yes
virus0000019_11	bias	23:53	0			VIRUS	cal							Yes
lrs20000018_01	dark	23:53	360			LRS2	cal							Yes
virus0000020_01	dark	23:54	360			VIRUS	cal							Yes

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