HET Night Report Reader

Civil Date	Ephemerides
2026-09-30	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:49	01:34	02:02	11:29	11:57	12:43	03:25	-
Night Length	9:27		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Zach Vanderbosch	Aiden Dillard	-	-

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:45	19.2	18.9	02:56	radar	02:11
03:48	15.7	17.0	04:53	clouds	01:05
06:38	14.0	16.4	12:03	twilight	05:25
Total Time Open					8:41

Program	Night Priority	Science
02:02	Idle due to weather (Clouds)
02:16	Science
02:23	Idle due to weather (Clouds)
03:48	Science
04:14	Idle due to weather (Clouds)
09:02	Science
10:18	Idle due to weather (Small Queue Gap)
10:39	Idle due to weather (Clouds)
10:50	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:12	01:46	0.43	0.66	-330	+724	17.1	18.1	18.5	295	18	First of Night
06:43	07:12	0.38	0.58	-405	+2801	13.7	14.4	14.7	297	15	Stack/Re-stack
11:58	12:03	0.60	0.92	-360	+3177	12.4	13.1	13.2	301	21	Post-Observing

Problem Reports					no PRs

Ops Comments	none

TO Comments	Sporadic thick cloud cover for the majority of the beginning of the night. Poor seeing conditions followed when able to observe.

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	skyflat	00:52	7			LRS2	cal							Yes
lrs20000002_01	skyflat	00:53	10			LRS2	cal							Yes
lrs20000003_01	skyflat	00:54	13			LRS2	cal							Yes
lrs20000004_01	skyflat	00:55	16			LRS2	cal							Yes
lrs20000005_01	skyflat	00:56	22			LRS2	cal							Yes
lrs20000006_01	skyflat	00:58	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:02	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:03	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:04	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:06	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:07	26			VIRUS	cal							Yes
virus0000006_01	parallel	01:57	1000			VIRUS	sci							Yes
lrs20000007_01	QID 1090	01:57	1000	9.3	PSU26-3-003	LRS2-B	sci	1.85	1.63	20.64	0.86		Thick clouds rolled in during first exposure, lost guide stars and aborted second exposure.	No
virus0000006_02	parallel	02:15	1000			VIRUS	sci							Yes
lrs20000007_02	QID 1090	02:15	1000	-14.7	PSU26-3-003	LRS2-B	sci	2.51	1.85	22.13	0.51			No
virus0000007_01	parallel	02:22	1000			VIRUS	sci							Yes
lrs20000008_01	QID 1113	02:22	1000	-9.7	PSU26-3-003	LRS2-B	sci	2.86	1.95	21.94	0.86		Setup on incorrect target, the nearby brighter source.	No
virus0000008_01	parallel	02:33	1000			VIRUS	sci							Yes
lrs20000009_01	QID 1113	02:33	1000	4.3	PSU26-3-003	LRS2-B	sci	2.55	1.77	21.75	0.72		Clouds. Transparency likely < 0.50, lost guide stars for significant portions of exposure.	No
lrs20000010_01	QID 1113	03:58	1000	9.3	PSU26-3-003	LRS2-B	sci	2.36		20.36	1.07			Yes
virus0000009_01	parallel	03:58	1000			VIRUS	sci							Yes
virus0000010_01	parallel	04:21	1500			VIRUS	sci							Yes
lrs20000011_01	QID 1088	04:21	1500	7.0	PSU26-3-003	LRS2-B	sci	2.50	1.66	20.33	0.80		Thick patchy clouds, low transparency.	No
virus0000010_02	parallel	04:47	1500			VIRUS	sci							Yes
lrs20000011_02	QID 1088	04:47	1500	1.0	PSU26-3-003	LRS2-B	sci	2.92		20.13	0.73			No
virus0000011_01	parallel	07:17	2400			VIRUS	sci							Yes
lrs20000012_01	QID 979	07:17	2400	5.0	PSU26-3-006	LRS2-B	sci	2.32		19.19	0.91		Sky brighter than requested with moon and clouds.	No
virus0000012_01	parallel	08:08	3200			VIRUS	sci							Yes
lrs20000013_01	QID 1112	08:09	3200	6.7	UT26-3-011	LRS2-R	sci	2.47		19.04	0.92		Some clouds during exposure causing unreliable transparency/sky-brightness values, likely outside of constraints.	No
lrs20000014_01	G191B2B_056_E	09:08	60	6.0		LRS2	spec	1.86		18.97	0.84			Yes
lrs20000015_01	G191B2B_066_E	09:12	120	3.0		LRS2	spec	2.03		18.87	0.88			Yes
virus0000013_01	parallel	09:23	3300			VIRUS	sci							Yes
lrs20000016_01	QID 1111	09:23	3300	9.0	UT26-3-011	LRS2-B	sci	2.10		19.45	0.76			Yes
virus0000014_01	parallel	10:45	300			VIRUS	sci							Yes
lrs20000017_01	QID 23	10:45	300	6.0	PSU26-3-002	LRS2-R	sci	1.86		19.17	0.69		Sky brightness brighter than 20 mag.	No
virus0000015_01	parallel	10:55	3100			VIRUS	sci							Yes
lrs20000018_01	QID 1110	10:55	3100	5.3	UT26-3-011	LRS2-B	sci	2.35		19.31	0.93			Yes
virus0000016_01	parallel	11:52	300			VIRUS	sci							Yes
lrs20000019_01	QID 44	11:52	300	5.0	PSU26-3-002	LRS2-R	sci	1.98		19.30	0.72		Sky brightness brighter than 20 mag.	No
lrs20000020_01	bias	11:59	0			LRS2	cal							Yes
virus0000017_01	bias	12:00	0			VIRUS	cal							Yes
virus0000018_01	Cd-A	12:05	15		ENG26-3-002	VIRUS	cal							Yes
virus0000019_01	Hg	12:06	15		ENG26-3-002	VIRUS	cal							Yes
lrs20009900_01	bias	21:53	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	21:56	20			LRS2	cal							Yes
virus0009902_01	dark	21:57	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	21:58	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	21:59	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:01	15			LRS2	cal							Yes
virus0009903_01	bias	22:03	0			VIRUS	cal							Yes
virus0006100_01	dark	22:07	10			VIRUS	cal							Yes
virus0009904_01	bias	22:08	0			VIRUS	cal							Yes
lrs20000003_01	flat_Qth_R	22:15	15			LRS2	cal							Yes
lrs20000003_02	flat_Qth_R	22:17	15			LRS2	cal							Yes
lrs20000003_03	flat_Qth_R	22:18	15			LRS2	cal							Yes
lrs20000003_04	flat_Qth_R	22:19	15			LRS2	cal							Yes
lrs20000003_05	flat_Qth_R	22:20	15			LRS2	cal							Yes
lrs20000004_01	flat_ldls_long_B	22:22	20			LRS2	cal							Yes
lrs20000004_02	flat_ldls_long_B	22:23	20			LRS2	cal							Yes
lrs20000004_03	flat_ldls_long_B	22:24	20			LRS2	cal							Yes
lrs20000005_01	Cd-A_B	22:25	29			LRS2	cal							Yes
lrs20000005_02	Cd-A_B	22:27	29			LRS2	cal							Yes
lrs20000005_03	Cd-A_B	22:28	29			LRS2	cal							Yes
lrs20000006_01	FeAr_R	22:30	15			LRS2	cal							Yes
lrs20000006_02	FeAr_R	22:31	15			LRS2	cal							Yes
lrs20000006_03	FeAr_R	22:32	15			LRS2	cal							Yes
lrs20000007_01	Hg_R	22:34	20			LRS2	cal							Yes
lrs20000007_02	Hg_R	22:35	20			LRS2	cal							Yes
lrs20000007_03	Hg_R	22:36	20			LRS2	cal							Yes
lrs20000008_01	Hg_B	22:37	15			LRS2	cal							Yes
lrs20000008_02	Hg_B	22:39	15			LRS2	cal							Yes
lrs20000008_03	Hg_B	22:40	15			LRS2	cal							Yes
virus0000005_01	flat_ldls_long	22:47	15			VIRUS	cal							Yes
virus0000005_02	flat_ldls_long	22:49	15			VIRUS	cal							Yes
virus0000005_03	flat_ldls_long	22:50	15			VIRUS	cal							Yes
virus0000006_01	Cd-A	22:51	15			VIRUS	cal							Yes
virus0000006_02	Cd-A	22:53	15			VIRUS	cal							Yes
virus0000006_03	Cd-A	22:54	15			VIRUS	cal							Yes
virus0000007_01	Hg	22:56	15			VIRUS	cal							Yes
virus0000007_02	Hg	22:57	15			VIRUS	cal							Yes
virus0000007_03	Hg	22:58	15			VIRUS	cal							Yes
lrs20000009_01	bias	23:00	0			LRS2	cal							Yes
virus0000008_01	bias	23:00	0			VIRUS	cal							Yes
lrs20000009_02	bias	23:01	0			LRS2	cal							Yes
virus0000008_02	bias	23:01	0			VIRUS	cal							Yes
lrs20000009_03	bias	23:01	0			LRS2	cal							Yes
virus0000008_03	bias	23:02	0			VIRUS	cal							Yes
lrs20000009_04	bias	23:02	0			LRS2	cal							Yes
virus0000008_04	bias	23:02	0			VIRUS	cal							Yes
lrs20000009_05	bias	23:03	0			LRS2	cal							Yes
virus0000008_05	bias	23:03	0			VIRUS	cal							Yes
lrs20000009_06	bias	23:04	0			LRS2	cal							Yes
virus0000008_06	bias	23:04	0			VIRUS	cal							Yes
lrs20000009_07	bias	23:05	0			LRS2	cal							Yes
virus0000008_07	bias	23:05	0			VIRUS	cal							Yes
lrs20000009_08	bias	23:06	0			LRS2	cal							Yes
virus0000008_08	bias	23:06	0			VIRUS	cal							Yes
lrs20000009_09	bias	23:07	0			LRS2	cal							Yes
virus0000008_09	bias	23:07	0			VIRUS	cal							Yes
lrs20000009_10	bias	23:07	0			LRS2	cal							Yes
virus0000008_10	bias	23:08	0			VIRUS	cal							Yes
lrs20000009_11	bias	23:08	0			LRS2	cal							Yes
virus0000008_11	bias	23:09	0			VIRUS	cal							Yes
lrs20000010_01	dark	23:09	360			LRS2	cal							Yes
virus0000009_01	dark	23:09	360			VIRUS	cal							Yes
lrs20000010_02	dark	23:16	360			LRS2	cal							Yes
virus0000009_02	dark	23:16	360			VIRUS	cal							Yes
lrs20000010_03	dark	23:23	360			LRS2	cal							Yes
virus0000009_03	dark	23:23	360			VIRUS	cal							Yes

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