HET Night Report Reader

Civil Date	Ephemerides
2025-06-05	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:04	02:57	03:33	10:16	10:52	11:45	-	08:53
Night Length	6:43		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
09:11	16.5	16.8	09:32	dew point	00:21
09:40	16.4	16.8	10:00	clouds	00:20
Total Time Open					0:41

Program	Night Priority	Science
03:33	Idle due to weather (high humidity)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
09:15	09:34	0.38	0.56	185	+4482	16.2	16.8	16.8	180	15	First of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
6490	06:30-06:30	00:00	Less frequent connection errors for https://emcs.het.astronomy.utexas.edu/
6491	05:00-05:00	00:00	Heater 3 not getting up to proper heater temperature according to Control By Web page

TO Comments	High humidity and fog 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
lrs20000001_01	bias	09:52	0			LRS2	cal							Yes
virus0000001_01	bias	09:52	0			VIRUS	cal							Yes
virus0000002_01	Cd-A	09:57	15		ENG25-2-002	VIRUS	cal							Yes
virus0000003_01	Hg	09:58	15		ENG25-2-002	VIRUS	cal							Yes
0050	LFC Cal	21:41	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:52	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:53	20			VIRUS	cal							Yes
virus0009901_01	bias	21:55	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:55	20			LRS2	cal							Yes
virus0009902_01	dark	21:57	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:57	38			LRS2	cal							Yes
lrs20009903_01	FeAr_R	21:59	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:01	15			LRS2	cal							Yes
0051	Dark	22:02	319.5			HPF	cal							Yes
0052	Quartz FCU	22:09	74.5			HPF	cal							Yes
0053	Quartz FCU	22:11	74.5			HPF	cal							Yes
0054	Quartz FCU	22:13	74.5			HPF	cal							Yes
0055	Quartz FCU	22:14	74.5			HPF	cal							Yes
0056	Quartz FCU	22:16	74.5			HPF	cal							Yes
0057	Quartz FCU	22:18	74.5			HPF	cal							Yes
0058	Quartz FCU	22:20	74.5			HPF	cal							Yes
0059	Alpha Bright Cal	22:22	85.2			HPF	cal							Yes
0060	Alpha Bright Cal	22:24	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	22:26	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	22:28	85.2			HPF	cal							Yes
0063	LFC FCU	22:31	106.5			HPF	cal							Yes
0064	LFC FCU	22:33	106.5			HPF	cal							Yes
0065	LFC Cal	22:36	106.5			HPF	cal							Yes
0066	LFC Cal	22:38	106.5			HPF	cal							Yes
0067	Etalon Cal	22:40	159.8			HPF	cal							Yes
0068	UNe Slave Cal	22:44	426			HPF	cal							Yes
lrs20000010_01	flat_Qth_R	22:45	15			LRS2	cal							Yes
lrs20000010_02	flat_Qth_R	22:46	15			LRS2	cal							Yes
lrs20000010_03	flat_Qth_R	22:48	15			LRS2	cal							Yes
lrs20000010_04	flat_Qth_R	22:49	15			LRS2	cal							Yes
lrs20000010_05	flat_Qth_R	22:50	15			LRS2	cal							Yes
lrs20000011_01	flat_ldls_long_B	22:51	20			LRS2	cal							Yes
0069	UNe Slave Cal	22:52	426			HPF	cal							Yes
lrs20000011_02	flat_ldls_long_B	22:53	20			LRS2	cal							Yes
lrs20000011_03	flat_ldls_long_B	22:54	20			LRS2	cal							Yes
lrs20000012_01	Cd-A_B	22:55	38			LRS2	cal							Yes
lrs20000012_02	Cd-A_B	22:57	38			LRS2	cal							Yes
lrs20000012_03	Cd-A_B	22:59	38			LRS2	cal							Yes
0070	UNe Slave Cal	23:00	426			HPF	cal							Yes
lrs20000013_01	FeAr_R	23:00	15			LRS2	cal							Yes
lrs20000013_02	FeAr_R	23:02	15			LRS2	cal							Yes
lrs20000013_03	FeAr_R	23:03	15			LRS2	cal							Yes
lrs20000014_01	Hg_R	23:04	20			LRS2	cal							Yes
lrs20000014_02	Hg_R	23:05	20			LRS2	cal							Yes
lrs20000014_03	Hg_R	23:07	20			LRS2	cal							Yes
0071	UNe Slave Cal	23:07	426			HPF	cal							Yes
lrs20000015_01	Hg_B	23:08	15			LRS2	cal							Yes
lrs20000015_02	Hg_B	23:09	15			LRS2	cal							Yes
lrs20000015_03	Hg_B	23:10	15			LRS2	cal							Yes
0072	UNe Slave Cal	23:15	426			HPF	cal							Yes
virus0000013_01	flat_ldls_long	23:17	15			VIRUS	cal							Yes
virus0000013_02	flat_ldls_long	23:19	15			VIRUS	cal							Yes
virus0000013_03	flat_ldls_long	23:20	15			VIRUS	cal							Yes
virus0000014_01	Cd-A	23:21	15			VIRUS	cal							Yes
0073	UNe Slave Cal	23:23	426			HPF	cal							Yes
virus0000014_02	Cd-A	23:23	15			VIRUS	cal							Yes
virus0000014_03	Cd-A	23:24	15			VIRUS	cal							Yes
virus0000015_01	Hg	23:26	15			VIRUS	cal							Yes
virus0000015_02	Hg	23:27	15			VIRUS	cal							Yes
virus0000015_03	Hg	23:28	15			VIRUS	cal							Yes
lrs20000016_01	bias	23:30	0			LRS2	cal							Yes
virus0000016_01	bias	23:30	0			VIRUS	cal							Yes
lrs20000016_02	bias	23:31	0			LRS2	cal							Yes
virus0000016_02	bias	23:31	0			VIRUS	cal							Yes
lrs20000016_03	bias	23:31	0			LRS2	cal							Yes
virus0000016_03	bias	23:32	0			VIRUS	cal							Yes
lrs20000016_04	bias	23:32	0			LRS2	cal							Yes
virus0000016_04	bias	23:33	0			VIRUS	cal							Yes
lrs20000016_05	bias	23:33	0			LRS2	cal							Yes
virus0000016_05	bias	23:33	0			VIRUS	cal							Yes
lrs20000016_06	bias	23:34	0			LRS2	cal							Yes
virus0000016_06	bias	23:34	0			VIRUS	cal							Yes
lrs20000016_07	bias	23:35	0			LRS2	cal							Yes
virus0000016_07	bias	23:35	0			VIRUS	cal							Yes
lrs20000016_08	bias	23:36	0			LRS2	cal							Yes
virus0000016_08	bias	23:36	0			VIRUS	cal							Yes
lrs20000016_09	bias	23:37	0			LRS2	cal							Yes
virus0000016_09	bias	23:37	0			VIRUS	cal							Yes
lrs20000016_10	bias	23:37	0			LRS2	cal							Yes
virus0000016_10	bias	23:38	0			VIRUS	cal							Yes
lrs20000016_11	bias	23:38	0			LRS2	cal							Yes
virus0000016_11	bias	23:39	0			VIRUS	cal							Yes
lrs20000017_01	dark	23:39	360			LRS2	cal							Yes
virus0000017_01	dark	23:40	360			VIRUS	cal							Yes
lrs20000017_02	dark	23:46	360			LRS2	cal							Yes
virus0000017_02	dark	23:46	360			VIRUS	cal							Yes
lrs20000017_03	dark	23:53	360			LRS2	cal							Yes
virus0000017_03	dark	23:53	360			VIRUS	cal							Yes