HET Night Report Reader

Civil Date	Ephemerides
2026-04-04	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:24	02:10	02:39	11:17	11:47	12:33	04:09	-
Night Length	8:38		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Zach Vanderbosch	Aiden Dillard Amy Westfall

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
04:53	7.1	8.9	08:57	radar	04:04
Total Time Open					4:04

Program	Night Priority	Science
02:39	Idle due to weather (Radar, clouds)
05:41	Science
07:20	Idle due to weather (Clouds)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
05:00	05:40	0.59	0.93	80	-1503	6.6	7.4	7.9	72	15	First of Night

Problem Reports					no PRs

TO Comments	Cloudy for most of the night mixed with radar in the county which both prevented much observing. Post-observing stack could not be completed as sporadic radar was expected to be in the county until twilight.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	LFC Cal	00:01	106.5			HPF	cal							Yes
0002	LFC Cal	00:03	106.5			HPF	cal							Yes
0003	Etalon Cal	00:06	159.8			HPF	cal							Yes
0004	UNe Slave Cal	00:09	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:10	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:12	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:13	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:14	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:15	15			LRS2	cal							Yes
0005	UNe Slave Cal	00:17	426			HPF	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:17	20			LRS2	cal							Yes
lrs20000002_02	flat_ldls_long_B	00:18	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	00:19	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	00:20	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	00:22	29			LRS2	cal							Yes
lrs20000003_03	Cd-A_B	00:23	29			LRS2	cal							Yes
0006	UNe Slave Cal	00:25	426			HPF	cal							Yes
lrs20000004_01	FeAr_R	00:25	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	00:26	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	00:27	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	00:29	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	00:30	20			LRS2	cal							Yes
lrs20000005_03	Hg_R	00:31	20			LRS2	cal							Yes
0007	UNe Slave Cal	00:32	426			HPF	cal							Yes
lrs20000006_01	Hg_B	00:33	15			LRS2	cal							Yes
lrs20000006_02	Hg_B	00:34	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	00:35	15			LRS2	cal							Yes
0008	UNe Slave Cal	00:40	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:42	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:43	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	00:44	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	00:46	15			VIRUS	cal							Yes
virus0000002_02	Cd-A	00:47	15			VIRUS	cal							Yes
0009	UNe Slave Cal	00:48	426			HPF	cal							Yes
virus0000002_03	Cd-A	00:49	15			VIRUS	cal							Yes
virus0000003_01	Hg	00:50	15			VIRUS	cal							Yes
virus0000003_02	Hg	00:51	15			VIRUS	cal							Yes
virus0000003_03	Hg	00:53	15			VIRUS	cal							Yes
lrs20000007_01	dark	00:54	360			LRS2	cal							Yes
virus0000004_01	dark	00:54	360			VIRUS	cal							Yes
lrs20000007_02	dark	01:01	360			LRS2	cal							Yes
virus0000004_02	dark	01:01	360			VIRUS	cal							Yes
lrs20000007_03	dark	01:08	360			LRS2	cal							Yes
virus0000004_03	dark	01:08	360			VIRUS	cal							Yes
0010	LFC Cal	01:54	106.5			HPF	cal							Yes
0011	LFC Cal	01:57	106.5			HPF	cal							Yes
0012	LFC Cal	01:59	106.5			HPF	cal							Yes
0013	LFC Cal	02:54	106.5			HPF	cal							Yes
0014	LFC Cal	02:56	106.5			HPF	cal							Yes
0015	LFC Cal	02:58	106.5			HPF	cal							Yes
0016	LFC Cal	04:00	106.5			HPF	cal							Yes
0017	LFC Cal	04:03	106.5			HPF	cal							Yes
0018	LFC Cal	04:05	106.5			HPF	cal							Yes
0019	LFC Cal	05:01	106.5			HPF	cal							Yes
0020	LFC Cal	05:04	106.5			HPF	cal							Yes
0021	LFC Cal	05:06	106.5			HPF	cal							Yes
0022	LFC Cal	05:46	106.5			HPF	cal							Yes
virus0000005_01	parallel	05:46	940			VIRUS	sci							Yes
lrs20000008_01	QID 5	05:46	940	5.3	PSU26-2-005	LRS2-B	sci	1.57		19.69	0.83		Sky brightness slightly brighter than 20 mag. Please check data quality and reject if needed.	Yes
0023	LFC Cal	05:49	106.5			HPF	cal							Yes
0024	LFC Cal	05:51	106.5			HPF	cal							Yes
0025	QID 117	06:15	969.1	12.8	UT26-2-019	HPF	sci	1.67		19.90	1.05	342		Yes
virus0000006_01	parallel	06:15	1023			VIRUS	sci							Yes
0026	LFC Cal	06:33	106.5			HPF	cal							Yes
0027	QID 476	06:38	915.9	7.7	G26-2-002	HPF	sci	1.67		19.58	0.94	40		Yes
virus0000007_01	parallel	06:38	1959			VIRUS	sci							Yes
0028	QID 476	06:55	915.9	0.7	G26-2-002	HPF	sci	1.67		19.13	0.69	34		Yes
0029	LFC Cal	07:12	106.5			HPF	cal							Yes
lrs20000009_01	FEIGE34_056_W	07:15	60	5.0		LRS2	spec	2.06		19.50	0.80			Yes
lrs20000010_01	FEIGE34_066_W	07:19	60	3.0		LRS2	spec	1.69		18.91	0.33			Yes
lrs20000011_01	bias	07:30	0			LRS2	cal							Yes
virus0000008_01	bias	07:30	0			VIRUS	cal							Yes
lrs20000011_02	bias	07:31	0			LRS2	cal							Yes
virus0000008_02	bias	07:31	0			VIRUS	cal							Yes
lrs20000011_03	bias	07:31	0			LRS2	cal							Yes
virus0000008_03	bias	07:32	0			VIRUS	cal							Yes
lrs20000011_04	bias	07:32	0			LRS2	cal							Yes
virus0000008_04	bias	07:33	0			VIRUS	cal							Yes
lrs20000011_05	bias	07:33	0			LRS2	cal							Yes
virus0000008_05	bias	07:33	0			VIRUS	cal							Yes
lrs20000011_06	bias	07:34	0			LRS2	cal							Yes
virus0000008_06	bias	07:34	0			VIRUS	cal							Yes
lrs20000011_07	bias	07:35	0			LRS2	cal							Yes
virus0000008_07	bias	07:35	0			VIRUS	cal							Yes
lrs20000011_08	bias	07:36	0			LRS2	cal							Yes
virus0000008_08	bias	07:36	0			VIRUS	cal							Yes
lrs20000011_09	bias	07:37	0			LRS2	cal							Yes
virus0000008_09	bias	07:37	0			VIRUS	cal							Yes
lrs20000011_10	bias	07:38	0			LRS2	cal							Yes
lrs20000011_11	bias	07:38	0			LRS2	cal							Yes
virus0000008_10	bias	07:38	0			VIRUS	cal							Yes
virus0000008_11	bias	07:39	0			VIRUS	cal							Yes
0030	LFC Cal	08:21	106.5			HPF	cal							Yes
0031	LFC Cal	08:23	106.5			HPF	cal							Yes
0032	LFC Cal	08:25	106.5			HPF	cal							Yes
0033	LFC Cal	09:24	106.5			HPF	cal							Yes
0034	LFC Cal	09:26	106.5			HPF	cal							Yes
0035	LFC Cal	09:28	106.5			HPF	cal							Yes
0036	LFC Cal	10:13	106.5			HPF	cal							Yes
0037	LFC Cal	10:15	106.5			HPF	cal							Yes
0038	LFC Cal	10:18	106.5			HPF	cal							Yes
lrs20000012_01	bias	10:36	0			LRS2	cal							Yes
virus0000009_01	bias	10:37	0			VIRUS	cal							Yes
virus0000010_01	Cd-A	10:41	15		ENG26-2-002	VIRUS	cal							Yes
virus0000011_01	Hg	10:43	15		ENG26-2-002	VIRUS	cal							Yes
0039	Dark	10:51	319.5			HPF	cal							Yes
0040	Quartz FCU	11:03	74.5			HPF	cal							Yes
0041	Quartz FCU	11:04	74.5			HPF	cal							Yes
0042	Quartz FCU	11:06	74.5			HPF	cal							Yes
0043	Quartz FCU	11:08	74.5			HPF	cal							Yes
0044	Quartz FCU	11:10	74.5			HPF	cal							Yes
0045	Quartz FCU	11:11	74.5			HPF	cal							Yes
0046	Quartz FCU	11:13	74.5			HPF	cal							Yes
0047	Alpha Bright Cal	11:16	85.2			HPF	cal							Yes
0048	Alpha Bright Cal	11:17	85.2			HPF	cal							Yes
0049	Alpha Bright Cal	11:19	85.2			HPF	cal							Yes
0050	Alpha Bright Cal	11:21	85.2			HPF	cal							Yes
0051	LFC FCU	11:24	106.5			HPF	cal							Yes
0052	LFC FCU	11:26	106.5			HPF	cal							Yes
0053	LFC FCU	11:29	106.5			HPF	cal							Yes
0054	LFC FCU	11:31	106.5			HPF	cal							Yes
0055	LFC FCU	11:33	106.5			HPF	cal							Yes
0056	LFC FCU	11:36	106.5			HPF	cal							Yes
0057	LFC Cal	11:39	106.5			HPF	cal							Yes
0058	LFC Cal	11:41	106.5			HPF	cal							Yes
0059	Etalon Cal	11:49	159.8			HPF	cal							Yes
0060	Etalon Cal	11:52	159.8			HPF	cal							Yes
0061	Etalon Cal	11:55	159.8			HPF	cal							Yes
0062	Etalon Cal	11:58	159.8			HPF	cal							Yes
0063	UNe Slave Cal	12:02	426			HPF	cal							Yes
0064	UNe Slave Cal	12:10	426			HPF	cal							Yes
0065	UNe Slave Cal	12:17	426			HPF	cal							Yes
0066	UNe Slave Cal	12:25	426			HPF	cal							Yes
0067	UNe Slave Cal	12:33	426			HPF	cal							Yes
0068	UNe Slave Cal	12:41	426			HPF	cal							Yes
lrs20009900_01	bias	23:13	0			LRS2	cal							Yes
0072	LFC Cal	23:13	106.5			HPF	cal							Yes
virus0009900_01	flat_Qth	23:14	20			VIRUS	cal							Yes
virus0009901_01	bias	23:15	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:16	20			LRS2	cal							Yes
virus0009902_01	dark	23:17	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:18	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:19	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:21	15			LRS2	cal							Yes
virus0006100_01	dark	23:22	10			VIRUS	cal							Yes
virus0009903_01	bias	23:24	0			VIRUS	cal							Yes
0073	Dark	23:27	319.5			HPF	cal							Yes
0074	Quartz FCU	23:34	74.5			HPF	cal							Yes
0075	Quartz FCU	23:36	74.5			HPF	cal							Yes
0076	Quartz FCU	23:37	74.5			HPF	cal							Yes
0077	Quartz FCU	23:39	74.5			HPF	cal							Yes
0078	Quartz FCU	23:41	74.5			HPF	cal							Yes
0079	Quartz FCU	23:43	74.5			HPF	cal							Yes
0080	Quartz FCU	23:45	74.5			HPF	cal							Yes
0081	Alpha Bright Cal	23:47	85.2			HPF	cal							Yes
0082	Alpha Bright Cal	23:49	85.2			HPF	cal							Yes
0083	Alpha Bright Cal	23:51	85.2			HPF	cal							Yes
0084	Alpha Bright Cal	23:53	85.2			HPF	cal							Yes
0085	LFC FCU	23:55	106.5			HPF	cal							Yes
0086	LFC FCU	23:58	106.5			HPF	cal							Yes