HET Night Report Reader

Civil Date	Ephemerides
2026-09-18	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:04	01:49	02:18	11:22	11:50	12:36	-	05:47
Night Length	9:04		Sunset Temperature

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

Overlaps
TO Overlap	RA Overlap
Cassie Crowe	-

Other Personnel	George Damm

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:59	24.6	23.0	02:57	PR	01:58
03:29	22.2	23.2	11:43	twilight	08:14
Total Time Open					10:12

Program	Night Priority	Science
02:18	Science
04:40	Idle due to weather (Queue Gap)
04:53	Science
11:00	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
01:33	01:58										First of Night
↪ Comments			Did not finish stack due to problem related to Segment 76 not able to be captured on the HEFI camera.
03:34	04:04	0.51	0.76	-380	+640	21.0	22.3	22.8	146	5	Stack/Re-stack
06:23	06:52	0.39	0.60	-420	+1013	19.8	20.4	20.4	191	10	Stack/Re-stack
11:37	11:43	0.59	0.91	-410	+1389	19.9	19.8	19.7	230	8	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6721	01:58-03:34	01:36	Mirror 5:1 moved out of array	Called: GD Covered mirrors 4:1, 5:1, and 6:1

Ops Comments	none

TO Comments	none

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000034_03	dark	00:03	360			LRS2	cal							Yes
virus0000037_03	dark	00:04	360			VIRUS	cal							Yes
lrs20000001_01	skyflat	01:07	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:08	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:09	13			LRS2	cal							Yes
lrs20000004_01	skyflat	01:11	16			LRS2	cal							Yes
lrs20000005_01	skyflat	01:12	22			LRS2	cal							Yes
lrs20000006_01	skyflat	01:13	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:17	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:18	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:19	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:21	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:22	26			VIRUS	cal							Yes
0001	LFC Cal	02:45	106.5			HPF	cal							Yes
0002	LFC Cal	02:47	106.5			HPF	cal							Yes
0003	LFC Cal	02:50	106.5			HPF	cal							Yes
0004	LFC Cal	03:31	106.5			HPF	cal							Yes
0005	LFC Cal	03:33	106.5			HPF	cal							Yes
0006	LFC Cal	03:36	106.5			HPF	cal							Yes
lrs20000007_01	WD2341+322_056_E	04:08	180	4.0		LRS2	spec	1.48		20.85	0.79			Yes
lrs20000008_01	WD2341+322_066_E	04:16	180	5.0		LRS2	spec	1.21		20.65	0.76			Yes
virus0000006_01	WD2341+322_042_E	04:22	60	3.0		VIRUS	spec	1.24		21.14	0.66			Yes
virus0000006_02	WD2341+322_042_E	04:25	60	2.0		VIRUS	spec	1.24		21.14	0.68			Yes
virus0000006_03	WD2341+322_042_E	04:27	60	1.0		VIRUS	spec	1.29		21.11	0.61			Yes
0007	HR7017_tell_std	04:34	330.2	6.5		HPF	telluric	1.46		20.15	0.89			Yes
0008	QID 1078	04:59	969.1	6.8	UT26-3-012	HPF	sci	1.44	0.79	19.93	0.91	378		Yes
virus0000007_01	parallel	04:59	1000			VIRUS	sci							Yes
0009	LFC Cal	05:17	106.5			HPF	cal							Yes
virus0000008_01	parallel	05:24	1000			VIRUS	sci							Yes
0010	QID 1079	05:25	969.1	8.8	UT26-3-012	HPF	sci	1.43	0.76	19.73	0.92	444		Yes
0011	LFC Cal	05:42	106.5			HPF	cal							Yes
virus0000009_01	parallel	05:47	1000			VIRUS	sci							Yes
lrs20000009_01	QID 219	05:47	1000	6.3	PSU26-3-003	LRS2-B	sci	1.55	0.78	21.63	0.86			Yes
0012	LFC Cal	05:48	106.5			HPF	cal							Yes
0013	LFC Cal	05:50	106.5			HPF	cal							Yes
0014	LFC Cal	05:52	106.5			HPF	cal							Yes
virus0000009_02	parallel	06:05	1000			VIRUS	sci							Yes
lrs20000009_02	QID 219	06:05	1000	1.3	PSU26-3-003	LRS2-B	sci	1.48	0.69	21.63	0.80			Yes
virus0000010_01	parallel	06:56	300			VIRUS	sci							Yes
0015	LFC Cal	06:57	106.5			HPF	cal							Yes
lrs20000010_01	QID 1028	06:57	300	5.0	UT26-3-010	LRS2-B	sci	1.31	0.86	21.79	0.82			Yes
0016	LFC Cal	06:59	106.5			HPF	cal							Yes
virus0000011_01	parallel	07:07	1945.7			VIRUS	sci							Yes
0017	QID 1037	07:08	617.7	5.7	UT26-3-001	HPF	sci	1.32	0.88	20.50	0.76	100		Yes
0018	QID 1037	07:19	617.7	0.7	UT26-3-001	HPF	sci	1.32	0.88	20.46	0.80	116		Yes
0019	QID 1037	07:30	617.7	0.7	UT26-3-001	HPF	sci	1.35	0.84	20.50	0.79	126		Yes
0020	LFC Cal	07:46	106.5			HPF	cal							Yes
lrs20000011_01	parallel	07:46	360			LRS2	sci							Yes
virus0000012_01	QID 834	07:46	360	6.0	UT26-3-014	VIRUS	sci	1.46	0.69	22.08	0.63			Yes
0021	LFC Cal	07:48	106.5			HPF	cal							Yes
lrs20000011_02	parallel	07:53	360			LRS2	sci							Yes
virus0000012_02	QID 834	07:53	360	1.0	UT26-3-014	VIRUS	sci	1.38	0.75	22.03	0.64			Yes
lrs20000011_03	parallel	08:00	360			LRS2	sci							Yes
virus0000012_03	QID 834	08:00	360	1.0	UT26-3-014	VIRUS	sci	1.18	0.82	21.96	0.68			Yes
0022	QID 1049	08:14	276.9	8.4	UT26-3-012	HPF	sci	1.48	1.02	20.52	0.63	424		Yes
virus0000013_01	parallel	08:14	318.4			VIRUS	sci							Yes
0023	LFC Cal	08:20	106.5			HPF	cal							Yes
0024	QID 787	08:25	713.6	6.1	UT26-3-001	HPF	sci	1.58	1.00	20.20	0.63	60		Yes
virus0000014_01	parallel	08:25	2265.2			VIRUS	sci							Yes
0025	QID 787	08:38	713.6	1.1	UT26-3-001	HPF	sci	1.39	0.98	20.23	0.67	69		Yes
0026	QID 787	08:51	713.6	1.1	UT26-3-001	HPF	sci	1.32	0.99	20.21	0.74	67		Yes
0027	LFC Cal	09:10	106.5			HPF	cal							Yes
virus0000015_01	parallel	09:10	1800			VIRUS	sci							Yes
lrs20000012_01	QID 122	09:10	1800	7.0	UT26-3-013	LRS2-B	sci	1.47	0.82	21.89	0.71			Yes
0028	LFC Cal	09:13	106.5			HPF	cal							Yes
0029	LFC Cal	09:15	106.5			HPF	cal							Yes
0030	LFC Cal	09:44	106.5			HPF	cal							Yes
virus0000016_01	parallel	09:44	900			VIRUS	sci							Yes
lrs20000013_01	QID 123	09:44	900	4.0	UT26-3-013	LRS2-R	sci	1.55	0.84	20.69	0.58			Yes
0031	LFC Cal	09:47	106.5			HPF	cal							Yes
0032	LFC Cal	09:49	106.5			HPF	cal							Yes
lrs20000014_01	parallel	10:04	360			LRS2	sci							Yes
virus0000017_01	QID 346	10:04	360	5.0	PSU26-3-011	VIRUS	sci	1.87	1.08	21.83	0.63			Yes
0033	LFC Cal	10:05	106.5			HPF	cal							Yes
0034	LFC Cal	10:07	106.5			HPF	cal							Yes
lrs20000014_02	parallel	10:12	360			LRS2	sci							Yes
virus0000017_02	QID 346	10:12	360	2.0	PSU26-3-011	VIRUS	sci	1.69	1.10	21.75	0.72			Yes
lrs20000014_03	parallel	10:19	360			LRS2	sci							Yes
virus0000017_03	QID 346	10:19	360	1.0	PSU26-3-011	VIRUS	sci	1.42	0.88	21.69	0.90			Yes
0035	LFC Cal	10:30	106.5			HPF	cal							Yes
virus0000018_01	parallel	10:30	1800			VIRUS	sci							Yes
lrs20000015_01	QID 111	10:30	1800	5.0	UT26-3-015	LRS2-B	sci	1.44	0.83	21.77	0.52			Yes
0036	LFC Cal	10:32	106.5			HPF	cal							Yes
0037	LFC Cal	10:34	106.5			HPF	cal							Yes
0038	QID 1052	11:07	532.5	7.1	UT26-3-012	HPF	sci	1.52	0.84	20.10	0.31	320	Clouds, low transparency.	No
virus0000019_01	parallel	11:07	574			VIRUS	sci							Yes
0039	LFC Cal	11:17	106.5			HPF	cal							Yes
0040	LFC Cal	11:23	106.5			HPF	cal							Yes
lrs20000016_01	QID 898	11:23	180	7.0	UT26-3-009	LRS2-B	sci	1.52	0.81	21.44	0.46		Clouds, low transparency.	No
0041	LFC Cal	11:30	106.5			HPF	cal							Yes
virus0000020_01	parallel	11:30	360			VIRUS	sci							Yes
lrs20000017_01	QID 899	11:30	360	4.0	UT26-3-009	LRS2-R	sci	1.65	0.88	20.25	0.57			No
0042	LFC Cal	11:33	106.5			HPF	cal							Yes
lrs20000018_01	bias	11:37	0			LRS2	cal							Yes
virus0000021_01	bias	11:38	0			VIRUS	cal							Yes
virus0000022_01	Cd-A	11:42	15		ENG26-3-002	VIRUS	cal							Yes
virus0000023_01	Hg	11:44	15		ENG26-3-002	VIRUS	cal							Yes
0043	Dark	11:54	319.5			HPF	cal							Yes
0044	Quartz FCU	12:06	74.5			HPF	cal							Yes
0045	Quartz FCU	12:08	74.5			HPF	cal							Yes
0046	Quartz FCU	12:10	74.5			HPF	cal							Yes
0047	Quartz FCU	12:11	74.5			HPF	cal							Yes
0048	Quartz FCU	12:13	74.5			HPF	cal							Yes
0049	Quartz FCU	12:15	74.5			HPF	cal							Yes
0050	Quartz FCU	12:17	74.5			HPF	cal							Yes
0051	Alpha Bright Cal	12:19	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	12:21	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	12:23	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	12:25	85.2			HPF	cal							Yes
0055	LFC FCU	12:28	106.5			HPF	cal							Yes
0056	LFC FCU	12:30	106.5			HPF	cal							Yes
0057	LFC FCU	12:32	106.5			HPF	cal							Yes
0058	LFC FCU	12:35	106.5			HPF	cal							Yes
0059	LFC FCU	12:37	106.5			HPF	cal							Yes
0060	LFC FCU	12:39	106.5			HPF	cal							Yes
0061	LFC Cal	12:42	106.5			HPF	cal							Yes
0062	LFC Cal	12:44	106.5			HPF	cal							Yes
0063	Etalon Cal	12:52	159.8			HPF	cal							Yes
0064	Etalon Cal	12:55	159.8			HPF	cal							Yes
0065	Etalon Cal	12:59	159.8			HPF	cal							Yes
0066	Etalon Cal	13:02	159.8			HPF	cal							Yes
0067	UNe Slave Cal	13:05	426			HPF	cal							Yes
0068	UNe Slave Cal	13:13	426			HPF	cal							Yes
0069	UNe Slave Cal	13:21	426			HPF	cal							Yes
0070	UNe Slave Cal	13:29	426			HPF	cal							Yes
0071	UNe Slave Cal	13:36	426			HPF	cal							Yes
0072	UNe Slave Cal	13:44	426			HPF	cal							Yes
lrs20009900_01	bias	21:56	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:57	20			VIRUS	cal							Yes
virus0009901_01	bias	21:59	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	21:59	20			LRS2	cal							Yes
virus0009902_01	dark	22:01	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:02	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:03	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:04	15			LRS2	cal							Yes
virus0006100_01	dark	22:06	10			VIRUS	cal							Yes
virus0009903_01	bias	22:08	0			VIRUS	cal							Yes
0100	LFC Cal	22:09	106.5			HPF	cal							Yes
0101	Dark	22:14	319.5			HPF	cal							Yes
0102	Quartz FCU	22:20	74.5			HPF	cal							Yes
0103	Quartz FCU	22:22	74.5			HPF	cal							Yes
0104	Quartz FCU	22:24	74.5			HPF	cal							Yes
0105	Quartz FCU	22:26	74.5			HPF	cal							Yes
0106	Quartz FCU	22:27	74.5			HPF	cal							Yes
0107	Quartz FCU	22:29	74.5			HPF	cal							Yes
0108	Quartz FCU	22:31	74.5			HPF	cal							Yes
0109	Alpha Bright Cal	22:33	85.2			HPF	cal							Yes
0110	Alpha Bright Cal	22:35	85.2			HPF	cal							Yes
0111	Alpha Bright Cal	22:37	85.2			HPF	cal							Yes
0112	Alpha Bright Cal	22:39	85.2			HPF	cal							Yes
0113	LFC FCU	22:42	106.5			HPF	cal							Yes
0114	LFC FCU	22:44	106.5			HPF	cal							Yes
0115	LFC Cal	22:47	106.5			HPF	cal							Yes
0116	LFC Cal	22:49	106.5			HPF	cal							Yes
0117	Etalon Cal	22:52	159.8			HPF	cal							Yes
0118	UNe Slave Cal	22:56	426			HPF	cal							Yes
lrs20000027_01	flat_Qth_R	22:56	15			LRS2	cal							Yes
lrs20000027_02	flat_Qth_R	22:57	15			LRS2	cal							Yes
lrs20000027_03	flat_Qth_R	22:59	15			LRS2	cal							Yes
lrs20000027_04	flat_Qth_R	23:00	15			LRS2	cal							Yes
lrs20000027_05	flat_Qth_R	23:01	15			LRS2	cal							Yes
lrs20000028_01	flat_ldls_long_B	23:02	20			LRS2	cal							Yes
0119	UNe Slave Cal	23:03	426			HPF	cal							Yes
lrs20000028_02	flat_ldls_long_B	23:04	20			LRS2	cal							Yes
lrs20000028_03	flat_ldls_long_B	23:05	20			LRS2	cal							Yes
lrs20000029_01	Cd-A_B	23:06	29			LRS2	cal							Yes
lrs20000029_02	Cd-A_B	23:08	29			LRS2	cal							Yes
lrs20000029_03	Cd-A_B	23:09	29			LRS2	cal							Yes
0120	UNe Slave Cal	23:11	426			HPF	cal							Yes
lrs20000030_01	FeAr_R	23:11	15			LRS2	cal							Yes
lrs20000030_02	FeAr_R	23:12	15			LRS2	cal							Yes
lrs20000030_03	FeAr_R	23:13	15			LRS2	cal							Yes
lrs20000031_01	Hg_R	23:14	20			LRS2	cal							Yes
lrs20000031_02	Hg_R	23:16	20			LRS2	cal							Yes
lrs20000031_03	Hg_R	23:17	20			LRS2	cal							Yes
lrs20000032_01	Hg_B	23:18	15			LRS2	cal							Yes
0121	UNe Slave Cal	23:19	426			HPF	cal							Yes
lrs20000032_02	Hg_B	23:20	15			LRS2	cal							Yes
lrs20000032_03	Hg_B	23:21	15			LRS2	cal							Yes
0122	UNe Slave Cal	23:27	426			HPF	cal							Yes
virus0000033_01	flat_ldls_long	23:27	15			VIRUS	cal							Yes
virus0000033_02	flat_ldls_long	23:29	15			VIRUS	cal							Yes
virus0000033_03	flat_ldls_long	23:30	15			VIRUS	cal							Yes
virus0000034_01	Cd-A	23:32	15			VIRUS	cal							Yes
virus0000034_02	Cd-A	23:33	15			VIRUS	cal							Yes
0123	UNe Slave Cal	23:34	426			HPF	cal							Yes
virus0000034_03	Cd-A	23:34	15			VIRUS	cal							Yes
virus0000035_01	Hg	23:36	15			VIRUS	cal							Yes
virus0000035_02	Hg	23:37	15			VIRUS	cal							Yes
virus0000035_03	Hg	23:39	15			VIRUS	cal							Yes
lrs20000033_01	bias	23:40	0			LRS2	cal							Yes
virus0000036_01	bias	23:40	0			VIRUS	cal							Yes
lrs20000033_02	bias	23:41	0			LRS2	cal							Yes
virus0000036_02	bias	23:41	0			VIRUS	cal							Yes
lrs20000033_03	bias	23:42	0			LRS2	cal							Yes
virus0000036_03	bias	23:42	0			VIRUS	cal							Yes
lrs20000033_04	bias	23:42	0			LRS2	cal							Yes
virus0000036_04	bias	23:43	0			VIRUS	cal							Yes
lrs20000033_05	bias	23:43	0			LRS2	cal							Yes
lrs20000033_06	bias	23:44	0			LRS2	cal							Yes
virus0000036_05	bias	23:44	0			VIRUS	cal							Yes
lrs20000033_07	bias	23:45	0			LRS2	cal							Yes
virus0000036_06	bias	23:45	0			VIRUS	cal							Yes
virus0000036_07	bias	23:45	0			VIRUS	cal							Yes
lrs20000033_08	bias	23:46	0			LRS2	cal							Yes
virus0000036_08	bias	23:46	0			VIRUS	cal							Yes
lrs20000033_09	bias	23:47	0			LRS2	cal							Yes
virus0000036_09	bias	23:47	0			VIRUS	cal							Yes
lrs20000033_10	bias	23:48	0			LRS2	cal							Yes
virus0000036_10	bias	23:48	0			VIRUS	cal							Yes
lrs20000033_11	bias	23:49	0			LRS2	cal							Yes
virus0000036_11	bias	23:49	0			VIRUS	cal							Yes
lrs20000034_01	dark	23:50	360			LRS2	cal							Yes
virus0000037_01	dark	23:50	360			VIRUS	cal							Yes
lrs20000034_02	dark	23:56	360			LRS2	cal							Yes
virus0000037_02	dark	23:57	360			VIRUS	cal							Yes

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