HET Night Report Reader

Civil Date	Ephemerides
2026-06-27	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	02:10	03:04	03:40	10:18	10:54	11:48	-	10:25
Night Length	6:38		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Tyler Ryburn	Amy Westfall	-	-

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
03:40	24.2	22.1	06:44	clouds	03:04
Total Time Open					3:04

Program	Night Priority	Science
03:40	Idle due to weather (Clouds/radar)
04:20	Science
04:52	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
03:47	04:19	0.43	0.66	-390	-488	23.7	22.2	22.1	152	7	First of Night

Problem Reports					no PRs

Ops Comments	none

TO Comments	Closed most of the night for heavy clouds and radar signature in county.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0009901_01	bias	00:01	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	00:01	20			LRS2	cal							Yes
virus0009902_01	dark	00:03	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	00:03	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	00:05	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	00:06	15			LRS2	cal							Yes
0001	Dark	00:10	319.5			HPF	cal							Yes
0002	Quartz FCU	00:16	74.5			HPF	cal							Yes
0003	Quartz FCU	00:18	74.5			HPF	cal							Yes
0004	Quartz FCU	00:20	74.5			HPF	cal							Yes
0005	Quartz FCU	00:22	74.5			HPF	cal							Yes
0006	Quartz FCU	00:23	74.5			HPF	cal							Yes
0007	Quartz FCU	00:25	74.5			HPF	cal							Yes
0008	Quartz FCU	00:27	74.5			HPF	cal							Yes
0009	Alpha Bright Cal	00:29	85.2			HPF	cal							Yes
0010	Alpha Bright Cal	00:31	85.2			HPF	cal							Yes
0011	Alpha Bright Cal	00:33	85.2			HPF	cal							Yes
0012	Alpha Bright Cal	00:35	85.2			HPF	cal							Yes
0013	LFC FCU	00:38	106.5			HPF	cal							Yes
0014	LFC FCU	00:40	106.5			HPF	cal							Yes
0015	LFC Cal	00:43	106.5			HPF	cal							Yes
0016	LFC Cal	00:45	106.5			HPF	cal							Yes
0017	Etalon Cal	00:48	159.8			HPF	cal							Yes
0018	UNe Slave Cal	00:51	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:53	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:54	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:56	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:57	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:58	15			LRS2	cal							Yes
0019	UNe Slave Cal	00:59	426			HPF	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:59	20			LRS2	cal							Yes
lrs20000002_02	flat_ldls_long_B	01:01	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	01:02	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	01:03	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	01:05	29			LRS2	cal							Yes
lrs20000003_03	Cd-A_B	01:06	29			LRS2	cal							Yes
0020	UNe Slave Cal	01:07	426			HPF	cal							Yes
lrs20000004_01	FeAr_R	01:08	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	01:09	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	01:10	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	01:11	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	01:13	20			LRS2	cal							Yes
lrs20000005_03	Hg_R	01:14	20			LRS2	cal							Yes
0021	UNe Slave Cal	01:15	426			HPF	cal							Yes
lrs20000006_01	Hg_B	01:15	15			LRS2	cal							Yes
lrs20000006_02	Hg_B	01:16	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	01:18	15			LRS2	cal							Yes
0022	UNe Slave Cal	01:22	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	01:24	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	01:26	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	01:27	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	01:28	15			VIRUS	cal							Yes
0023	UNe Slave Cal	01:30	426			HPF	cal							Yes
virus0000002_02	Cd-A	01:30	15			VIRUS	cal							Yes
virus0000002_03	Cd-A	01:31	15			VIRUS	cal							Yes
virus0000003_01	Hg	01:32	15			VIRUS	cal							Yes
virus0000003_02	Hg	01:34	15			VIRUS	cal							Yes
virus0000003_03	Hg	01:35	15			VIRUS	cal							Yes
lrs20000007_01	dark	01:37	360			LRS2	cal							Yes
virus0000004_01	dark	01:37	360			VIRUS	cal							Yes
lrs20000007_02	dark	01:43	360			LRS2	cal							Yes
virus0000004_02	dark	01:43	360			VIRUS	cal							Yes
lrs20000007_03	dark	01:50	360			LRS2	cal							Yes
virus0000004_03	dark	01:50	360			VIRUS	cal							Yes
0024	LFC Cal	02:17	106.5			HPF	cal							Yes
0025	LFC Cal	02:19	106.5			HPF	cal							Yes
0026	LFC Cal	02:21	106.5			HPF	cal							Yes
lrs20000008_01	bias	02:24	0			LRS2	cal							Yes
virus0000005_01	bias	02:24	0			VIRUS	cal							Yes
lrs20000008_02	bias	02:24	0			LRS2	cal							Yes
virus0000005_02	bias	02:25	0			VIRUS	cal							Yes
lrs20000008_03	bias	02:25	0			LRS2	cal							Yes
virus0000005_03	bias	02:25	0			VIRUS	cal							Yes
lrs20000008_04	bias	02:26	0			LRS2	cal							Yes
virus0000005_04	bias	02:26	0			VIRUS	cal							Yes
lrs20000008_05	bias	02:27	0			LRS2	cal							Yes
virus0000005_05	bias	02:27	0			VIRUS	cal							Yes
lrs20000008_06	bias	02:28	0			LRS2	cal							Yes
virus0000005_06	bias	02:28	0			VIRUS	cal							Yes
lrs20000008_07	bias	02:29	0			LRS2	cal							Yes
virus0000005_07	bias	02:29	0			VIRUS	cal							Yes
lrs20000008_08	bias	02:29	0			LRS2	cal							Yes
virus0000005_08	bias	02:30	0			VIRUS	cal							Yes
lrs20000008_09	bias	02:30	0			LRS2	cal							Yes
virus0000005_09	bias	02:31	0			VIRUS	cal							Yes
lrs20000008_10	bias	02:31	0			LRS2	cal							Yes
virus0000005_10	bias	02:31	0			VIRUS	cal							Yes
lrs20000008_11	bias	02:32	0			LRS2	cal							Yes
virus0000005_11	bias	02:32	0			VIRUS	cal							Yes
lrs20000009_01	HD116405_056_W	04:26	15	6.8		LRS2	spec	1.60		19.12	0.76			Yes
lrs20000010_01	HD116405_066_W	04:30	15	2.8		LRS2	spec	1.54		19.17	0.85			Yes
0027	QID 98	04:36	969.1	5.8	UT26-2-019	HPF	sci	1.34		18.72	0.72	434		Yes
virus0000006_01	parallel	04:36	1000			VIRUS	sci							Yes
0028	LFC Cal	04:54	106.5			HPF	cal							Yes
0029	QID 1065	05:01	969.1	8.8	UT26-2-007	HPF	sci	1.25		18.72	0.74	40		No
virus0000007_01	parallel	05:01	2000			VIRUS	sci							Yes
0030	QID 1065	05:18	969.1	0.8	UT26-2-007	HPF	sci	1.25		18.08	0.57	37	Failed requested >65% transparency	No
0031	LFC Cal	07:48	106.5			HPF	cal							Yes
0032	LFC Cal	07:51	106.5			HPF	cal							Yes
0033	LFC Cal	07:53	106.5			HPF	cal							Yes
0034	LFC Cal	09:39	106.5			HPF	cal							Yes
0035	LFC Cal	09:42	106.5			HPF	cal							Yes
0036	LFC Cal	09:44	106.5			HPF	cal							Yes
lrs20000011_01	bias	09:54	0			LRS2	cal							Yes
virus0000008_01	bias	09:55	0			VIRUS	cal							Yes
virus0000009_01	Cd-A	09:59	15		ENG26-2-002	VIRUS	cal							Yes
virus0000010_01	Hg	10:00	15		ENG26-2-002	VIRUS	cal							Yes
0037	Dark	10:07	319.5			HPF	cal							Yes
0038	Quartz FCU	10:18	74.5			HPF	cal							Yes
0039	Quartz FCU	10:20	74.5			HPF	cal							Yes
0040	Quartz FCU	10:22	74.5			HPF	cal							Yes
0041	Quartz FCU	10:24	74.5			HPF	cal							Yes
0042	Quartz FCU	10:25	74.5			HPF	cal							Yes
0043	Quartz FCU	10:27	74.5			HPF	cal							Yes
0044	Quartz FCU	10:29	74.5			HPF	cal							Yes
0045	Alpha Bright Cal	10:31	85.2			HPF	cal							Yes
0046	Alpha Bright Cal	10:33	85.2			HPF	cal							Yes
0047	Alpha Bright Cal	10:35	85.2			HPF	cal							Yes
0048	Alpha Bright Cal	10:37	85.2			HPF	cal							Yes
0049	LFC FCU	10:40	106.5			HPF	cal							Yes
0050	LFC FCU	10:42	106.5			HPF	cal							Yes
0051	LFC FCU	10:44	106.5			HPF	cal							Yes
0052	LFC FCU	10:47	106.5			HPF	cal							Yes
0053	LFC FCU	10:49	106.5			HPF	cal							Yes
0054	LFC FCU	10:51	106.5			HPF	cal							Yes
0055	LFC Cal	10:54	106.5			HPF	cal							Yes
0056	LFC Cal	10:57	106.5			HPF	cal							Yes
0057	Etalon Cal	11:04	159.8			HPF	cal							Yes
0058	Etalon Cal	11:08	159.8			HPF	cal							Yes
0059	Etalon Cal	11:11	159.8			HPF	cal							Yes
0060	Etalon Cal	11:14	159.8			HPF	cal							Yes
0061	UNe Slave Cal	11:18	426			HPF	cal							Yes
0062	UNe Slave Cal	11:25	426			HPF	cal							Yes
0063	UNe Slave Cal	11:33	426			HPF	cal							Yes
0064	UNe Slave Cal	11:41	426			HPF	cal							Yes
0065	UNe Slave Cal	11:49	426			HPF	cal							Yes
0066	UNe Slave Cal	11:56	426			HPF	cal							Yes
0043	LFC Cal	23:50	106.5			HPF	cal							Yes
lrs20009900_01	bias	23:58	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	23:59	20			VIRUS	cal							Yes

Previous Day:		Jun 27, 2026 Civil		Next Day:
HET Night Report	VIRUS Biases	VIRUS Biases	LRS2 Biases	HET Night Report	VIRUS Biases
LRS2 Biases	EON Charts	EON Charts		LRS2 Biases	EON Charts