HET Night Report Reader

Civil Date	Ephemerides
2025-06-04	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:04	02:57	03:32	10:17	10:52	11:46	-	08:27
Night Length	6:45		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
02:02	19.1	18.1	03:57	dew point	01:55
08:19	18.8	17.0	08:55	dew point	00:36
Total Time Open					2:31

Program	Night Priority	Science
03:32	Science
04:00	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
02:44	03:06	0.39	0.59	185	+2633	18.6	18.9	18.7	112	11	First of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
6490	05:00-05:00	00:00	Frequent connection errors for https://emcs.het.astronomy.utexas.edu/

TO Comments	Dew point prevented opening for most of night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000021_03	dark	00:04	360			LRS2	cal							Yes
virus0000021_03	dark	00:04	360			VIRUS	cal							Yes
0001	twilight	02:03	298.2			HPF	cal							Yes
lrs20000001_01	skyflat	02:10	7			LRS2	cal							Yes
lrs20000002_01	skyflat	02:11	10			LRS2	cal							Yes
lrs20000003_01	skyflat	02:12	13			LRS2	cal							Yes
lrs20000004_01	skyflat	02:14	16			LRS2	cal							Yes
lrs20000005_01	skyflat	02:15	22			LRS2	cal							Yes
lrs20000006_01	skyflat	02:16	30			LRS2	cal							Yes
virus0000001_01	skyflat	02:20	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:21	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:23	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:24	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:25	26			VIRUS	cal							Yes
none	parallel	02:47	0	4.0	PSU25-2-008	HPF	sci						clouds	No
0002	test_drk_donotuse	03:13	10.7			HPF	cal							Yes
0003	parallel	03:14	340.8	8.3	PSU25-2-006	HPF	sci	1.76		19.49	0.65	412		Yes
virus0000006_01	parallel	03:14	374			VIRUS	sci							Yes
0004	test_drk_donotuse	03:26	10.7			HPF	cal							Yes
virus0000007_01	parallel	03:26	2047			VIRUS	sci							Yes
0005	parallel	03:27	969.1	6.8	UT25-2-008	HPF	sci	1.63		19.20	0.87	185		Yes
0006	parallel	03:44	969.1	0.8	UT25-2-008	HPF	sci	1.58		18.96	0.75	153		Yes
0007	LFC Cal	04:02	106.5			HPF	cal							Yes
0008	LFC Cal	07:50	106.5			HPF	cal							Yes
0009	LFC Cal	07:52	106.5			HPF	cal							Yes
0010	LFC Cal	07:54	106.5			HPF	cal							Yes
0011	LFC Cal	08:28	106.5			HPF	cal							Yes
virus0000008_01	parallel	08:28	1100			VIRUS	sci							Yes
lrs20000007_01	parallel	08:28	1100	5.7	M25-2-010	LRS2-B	sci	2.19		21.89	0.78		bad seeing	No
0012	LFC Cal	08:31	106.5			HPF	cal							Yes
0013	LFC Cal	08:33	106.5			HPF	cal							Yes
0014	LFC Cal	08:53	106.5			HPF	cal							Yes
virus0000009_01	parallel	08:53	1500			VIRUS	sci							Yes
lrs20000008_01	parallel	08:53	0	8.0	UT25-2-005	LRS2-B	sci	2.02		22.05	0.64		aborted due to high humidity	No
0015	LFC Cal	08:56	106.5			HPF	cal							Yes
0016	LFC Cal	08:58	106.5			HPF	cal							Yes
0017	LFC Cal	09:39	106.5			HPF	cal							Yes
0018	LFC Cal	09:41	106.5			HPF	cal							Yes
0019	LFC Cal	09:44	106.5			HPF	cal							Yes
lrs20000009_01	bias	09:56	0			LRS2	cal							Yes
virus0000010_01	bias	09:57	0			VIRUS	cal							Yes
virus0000011_01	Cd-A	10:01	15		ENG25-2-002	VIRUS	cal							Yes
virus0000012_01	Hg	10:02	15		ENG25-2-002	VIRUS	cal							Yes
0020	Dark	10:11	319.5			HPF	cal							Yes
0021	Quartz FCU	10:23	74.5			HPF	cal							Yes
0022	Quartz FCU	10:25	74.5			HPF	cal							Yes
0023	Quartz FCU	10:27	74.5			HPF	cal							Yes
0024	Quartz FCU	10:28	74.5			HPF	cal							Yes
0025	Quartz FCU	10:30	74.5			HPF	cal							Yes
0026	Quartz FCU	10:32	74.5			HPF	cal							Yes
0027	Quartz FCU	10:34	74.5			HPF	cal							Yes
0028	Alpha Bright Cal	10:36	85.2			HPF	cal							Yes
0029	Alpha Bright Cal	10:38	85.2			HPF	cal							Yes
0030	Alpha Bright Cal	10:40	85.2			HPF	cal							Yes
0031	Alpha Bright Cal	10:42	85.2			HPF	cal							Yes
0032	LFC FCU	10:44	106.5			HPF	cal							Yes
0033	LFC FCU	10:47	106.5			HPF	cal							Yes
0034	LFC FCU	10:49	106.5			HPF	cal							Yes
0035	LFC FCU	10:51	106.5			HPF	cal							Yes
0036	LFC FCU	10:54	106.5			HPF	cal							Yes
0037	LFC FCU	10:56	106.5			HPF	cal							Yes
0038	LFC Cal	10:59	106.5			HPF	cal							Yes
0039	LFC Cal	11:02	106.5			HPF	cal							Yes
0040	Etalon Cal	11:09	159.8			HPF	cal							Yes
0041	Etalon Cal	11:12	159.8			HPF	cal							Yes
0042	Etalon Cal	11:15	159.8			HPF	cal							Yes
0043	Etalon Cal	11:19	159.8			HPF	cal							Yes
0044	UNe Slave Cal	11:22	426			HPF	cal							Yes
0045	UNe Slave Cal	11:30	426			HPF	cal							Yes
0046	UNe Slave Cal	11:38	426			HPF	cal							Yes
0047	UNe Slave Cal	11:45	426			HPF	cal							Yes
0048	UNe Slave Cal	11:53	426			HPF	cal							Yes
0049	UNe Slave Cal	12:01	426			HPF	cal							Yes
0105	LFC Cal	21:52	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:01	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:02	20			VIRUS	cal							Yes
virus0009901_01	bias	22:04	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:04	20			LRS2	cal							Yes
virus0009902_01	dark	22:06	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:07	38			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:08	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:10	15			LRS2	cal							Yes
0106	Dark	22:13	319.5			HPF	cal							Yes
0107	Quartz FCU	22:19	74.5			HPF	cal							Yes
0108	Quartz FCU	22:21	74.5			HPF	cal							Yes
0109	Quartz FCU	22:23	74.5			HPF	cal							Yes
0110	Quartz FCU	22:25	74.5			HPF	cal							Yes
0111	Quartz FCU	22:26	74.5			HPF	cal							Yes
0112	Quartz FCU	22:28	74.5			HPF	cal							Yes
0113	Quartz FCU	22:30	74.5			HPF	cal							Yes
0114	Alpha Bright Cal	22:32	85.2			HPF	cal							Yes
0115	Alpha Bright Cal	22:34	85.2			HPF	cal							Yes
0116	Alpha Bright Cal	22:36	85.2			HPF	cal							Yes
0117	Alpha Bright Cal	22:38	85.2			HPF	cal							Yes
0118	LFC FCU	22:41	106.5			HPF	cal							Yes
0119	LFC FCU	22:43	106.5			HPF	cal							Yes
0120	LFC Cal	22:46	106.5			HPF	cal							Yes
0121	LFC Cal	22:48	106.5			HPF	cal							Yes
0122	Etalon Cal	22:51	159.8			HPF	cal							Yes
0123	UNe Slave Cal	22:55	426			HPF	cal							Yes
lrs20000014_01	flat_Qth_R	22:56	15			LRS2	cal							Yes
lrs20000014_02	flat_Qth_R	22:57	15			LRS2	cal							Yes
lrs20000014_03	flat_Qth_R	22:59	15			LRS2	cal							Yes
lrs20000014_04	flat_Qth_R	23:00	15			LRS2	cal							Yes
lrs20000014_05	flat_Qth_R	23:01	15			LRS2	cal							Yes
0124	UNe Slave Cal	23:02	426			HPF	cal							Yes
lrs20000015_01	flat_ldls_long_B	23:03	20			LRS2	cal							Yes
lrs20000015_02	flat_ldls_long_B	23:04	20			LRS2	cal							Yes
lrs20000015_03	flat_ldls_long_B	23:05	20			LRS2	cal							Yes
lrs20000016_01	Cd-A_B	23:07	38			LRS2	cal							Yes
lrs20000016_02	Cd-A_B	23:08	38			LRS2	cal							Yes
0125	UNe Slave Cal	23:10	426			HPF	cal							Yes
lrs20000016_03	Cd-A_B	23:10	38			LRS2	cal							Yes
lrs20000017_01	FeAr_R	23:12	15			LRS2	cal							Yes
lrs20000017_02	FeAr_R	23:13	15			LRS2	cal							Yes
lrs20000017_03	FeAr_R	23:14	15			LRS2	cal							Yes
lrs20000018_01	Hg_R	23:15	20			LRS2	cal							Yes
lrs20000018_02	Hg_R	23:17	20			LRS2	cal							Yes
0126	UNe Slave Cal	23:18	426			HPF	cal							Yes
lrs20000018_03	Hg_R	23:18	20			LRS2	cal							Yes
lrs20000019_01	Hg_B	23:19	15			LRS2	cal							Yes
lrs20000019_02	Hg_B	23:20	15			LRS2	cal							Yes
lrs20000019_03	Hg_B	23:22	15			LRS2	cal							Yes
0127	UNe Slave Cal	23:26	426			HPF	cal							Yes
virus0000017_01	flat_ldls_long	23:28	15			VIRUS	cal							Yes
virus0000017_02	flat_ldls_long	23:30	15			VIRUS	cal							Yes
virus0000017_03	flat_ldls_long	23:31	15			VIRUS	cal							Yes
virus0000018_01	Cd-A	23:32	15			VIRUS	cal							Yes
0128	UNe Slave Cal	23:33	426			HPF	cal							Yes
virus0000018_02	Cd-A	23:34	15			VIRUS	cal							Yes
virus0000018_03	Cd-A	23:35	15			VIRUS	cal							Yes
virus0000019_01	Hg	23:37	15			VIRUS	cal							Yes
virus0000019_02	Hg	23:38	15			VIRUS	cal							Yes
virus0000019_03	Hg	23:39	15			VIRUS	cal							Yes
lrs20000020_01	bias	23:41	0			LRS2	cal							Yes
virus0000020_01	bias	23:41	0			VIRUS	cal							Yes
lrs20000020_02	bias	23:42	0			LRS2	cal							Yes
virus0000020_02	bias	23:42	0			VIRUS	cal							Yes
lrs20000020_03	bias	23:42	0			LRS2	cal							Yes
virus0000020_03	bias	23:43	0			VIRUS	cal							Yes
lrs20000020_04	bias	23:43	0			LRS2	cal							Yes
virus0000020_04	bias	23:44	0			VIRUS	cal							Yes
lrs20000020_05	bias	23:44	0			LRS2	cal							Yes
virus0000020_05	bias	23:44	0			VIRUS	cal							Yes
lrs20000020_06	bias	23:45	0			LRS2	cal							Yes
virus0000020_06	bias	23:45	0			VIRUS	cal							Yes
lrs20000020_07	bias	23:46	0			LRS2	cal							Yes
virus0000020_07	bias	23:46	0			VIRUS	cal							Yes
lrs20000020_08	bias	23:47	0			LRS2	cal							Yes
virus0000020_08	bias	23:47	0			VIRUS	cal							Yes
lrs20000020_09	bias	23:48	0			LRS2	cal							Yes
virus0000020_09	bias	23:48	0			VIRUS	cal							Yes
lrs20000020_10	bias	23:48	0			LRS2	cal							Yes
lrs20000020_11	bias	23:49	0			LRS2	cal							Yes
virus0000020_10	bias	23:49	0			VIRUS	cal							Yes
virus0000020_11	bias	23:50	0			VIRUS	cal							Yes
lrs20000021_01	dark	23:50	360			LRS2	cal							Yes
virus0000021_01	dark	23:51	360			VIRUS	cal							Yes
lrs20000021_02	dark	23:57	360			LRS2	cal							Yes
virus0000021_02	dark	23:57	360			VIRUS	cal							Yes