HET Night Report Reader

Civil Date	Ephemerides
2026-04-26	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:38	02:26	02:57	10:49	11:20	12:09	-	09:53
Night Length	7:52		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Zach Vanderbosch	Cassie Crowe

Overlaps
TO Overlap	RA Overlap
Amy Westfall	-

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
03:16	21.2	20.1	05:48	dust	02:32
06:22	18.8	20.1	11:25	twilight	05:03
Total Time Open					7:35

Program	Night Priority	Science
02:57	Idle due to weather (Radar, clouds)
03:49	Science
05:20	Idle due to weather (Dust)
06:22	Science
07:52	Idle due to weather (Poor IQ)
09:02	Science
10:36	Idle due to weather (Poor IQ)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
03:17	03:48	0.98	2.1	-280	-598	21.4	20.8	20.4	230	17	First of Night
09:03	09:34	0.59	1.22	-260	+1015	17.0	17.6	17.6	260	12	Stack/Re-stack
11:16	11:21	0.72	1.18	-180	+1316	16.5	17.1	17.2	258	6	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6671	04:27-04:36	00:09	Had to Rerun Shuffle using GAIA Catalog for Target ID #735	Executed target from terminal after re-running target_setup with GAIA catalog

TO Comments	Closed by radar at start of night then brief dust closure. Clear for rest of the night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	Quartz FCU	00:00	74.5			HPF	cal							Yes
0002	Alpha Bright Cal	00:02	85.2			HPF	cal							Yes
0003	Alpha Bright Cal	00:04	85.2			HPF	cal							Yes
0004	Alpha Bright Cal	00:06	85.2			HPF	cal							Yes
0005	Alpha Bright Cal	00:08	85.2			HPF	cal							Yes
0006	LFC FCU	00:10	106.5			HPF	cal							Yes
0007	LFC FCU	00:13	106.5			HPF	cal							Yes
0008	LFC Cal	00:16	106.5			HPF	cal							Yes
0009	LFC Cal	00:18	106.5			HPF	cal							Yes
0010	Etalon Cal	00:21	159.8			HPF	cal							Yes
0011	UNe Slave Cal	00:24	426			HPF	cal							Yes
lrs20000001_01	flat_Qth_R	00:25	15			LRS2	cal							Yes
lrs20000001_02	flat_Qth_R	00:26	15			LRS2	cal							Yes
lrs20000001_03	flat_Qth_R	00:28	15			LRS2	cal							Yes
lrs20000001_04	flat_Qth_R	00:29	15			LRS2	cal							Yes
lrs20000001_05	flat_Qth_R	00:30	15			LRS2	cal							Yes
lrs20000002_01	flat_ldls_long_B	00:31	20			LRS2	cal							Yes
0012	UNe Slave Cal	00:32	426			HPF	cal							Yes
lrs20000002_02	flat_ldls_long_B	00:33	20			LRS2	cal							Yes
lrs20000002_03	flat_ldls_long_B	00:34	20			LRS2	cal							Yes
lrs20000003_01	Cd-A_B	00:35	29			LRS2	cal							Yes
lrs20000003_02	Cd-A_B	00:37	29			LRS2	cal							Yes
lrs20000003_03	Cd-A_B	00:38	29			LRS2	cal							Yes
0013	UNe Slave Cal	00:40	426			HPF	cal							Yes
lrs20000004_01	FeAr_R	00:40	15			LRS2	cal							Yes
lrs20000004_02	FeAr_R	00:41	15			LRS2	cal							Yes
lrs20000004_03	FeAr_R	00:42	15			LRS2	cal							Yes
lrs20000005_01	Hg_R	00:43	20			LRS2	cal							Yes
lrs20000005_02	Hg_R	00:45	20			LRS2	cal							Yes
lrs20000005_03	Hg_R	00:46	20			LRS2	cal							Yes
lrs20000006_01	Hg_B	00:47	15			LRS2	cal							Yes
0014	UNe Slave Cal	00:48	426			HPF	cal							Yes
lrs20000006_02	Hg_B	00:49	15			LRS2	cal							Yes
lrs20000006_03	Hg_B	00:50	15			LRS2	cal							Yes
0015	UNe Slave Cal	00:55	426			HPF	cal							Yes
virus0000001_01	flat_ldls_long	00:56	15			VIRUS	cal							Yes
virus0000001_02	flat_ldls_long	00:58	15			VIRUS	cal							Yes
virus0000001_03	flat_ldls_long	00:59	15			VIRUS	cal							Yes
virus0000002_01	Cd-A	01:00	15			VIRUS	cal							Yes
virus0000002_02	Cd-A	01:02	15			VIRUS	cal							Yes
0016	UNe Slave Cal	01:03	426			HPF	cal							Yes
virus0000002_03	Cd-A	01:03	15			VIRUS	cal							Yes
virus0000003_01	Hg	01:05	15			VIRUS	cal							Yes
virus0000003_02	Hg	01:06	15			VIRUS	cal							Yes
virus0000003_03	Hg	01:08	15			VIRUS	cal							Yes
lrs20000007_01	dark	01:09	360			LRS2	cal							Yes
virus0000004_01	dark	01:09	360			VIRUS	cal							Yes
lrs20000007_02	dark	01:16	360			LRS2	cal							Yes
virus0000004_02	dark	01:16	360			VIRUS	cal							Yes
lrs20000007_03	dark	01:23	360			LRS2	cal							Yes
virus0000004_03	dark	01:23	360			VIRUS	cal							Yes
lrs20000008_01	bias	02:06	0			LRS2	cal							Yes
virus0000005_01	bias	02:06	0			VIRUS	cal							Yes
lrs20000008_02	bias	02:07	0			LRS2	cal							Yes
virus0000005_02	bias	02:07	0			VIRUS	cal							Yes
lrs20000008_03	bias	02:07	0			LRS2	cal							Yes
virus0000005_03	bias	02:08	0			VIRUS	cal							Yes
lrs20000008_04	bias	02:08	0			LRS2	cal							Yes
virus0000005_04	bias	02:09	0			VIRUS	cal							Yes
lrs20000008_05	bias	02:09	0			LRS2	cal							Yes
virus0000005_05	bias	02:09	0			VIRUS	cal							Yes
lrs20000008_06	bias	02:10	0			LRS2	cal							Yes
virus0000005_06	bias	02:10	0			VIRUS	cal							Yes
lrs20000008_07	bias	02:11	0			LRS2	cal							Yes
virus0000005_07	bias	02:11	0			VIRUS	cal							Yes
lrs20000008_08	bias	02:12	0			LRS2	cal							Yes
virus0000005_08	bias	02:12	0			VIRUS	cal							Yes
lrs20000008_09	bias	02:13	0			LRS2	cal							Yes
virus0000005_09	bias	02:13	0			VIRUS	cal							Yes
lrs20000008_10	bias	02:13	0			LRS2	cal							Yes
virus0000005_10	bias	02:14	0			VIRUS	cal							Yes
lrs20000008_11	bias	02:14	0			LRS2	cal							Yes
virus0000005_11	bias	02:15	0			VIRUS	cal							Yes
0017	LFC Cal	02:51	106.5			HPF	cal							Yes
0018	LFC Cal	02:54	106.5			HPF	cal							Yes
0019	LFC Cal	02:56	106.5			HPF	cal							Yes
0020	QID 786	03:53	308.9	3.9	UT26-2-005	HPF	sci	1.70		19.19	0.77	172		Yes
virus0000006_01	parallel	03:53	2137			VIRUS	sci							Yes
0021	QID 786	03:59	308.9	0.9	UT26-2-005	HPF	sci	1.84		19.11	0.74	161		Yes
0022	QID 786	04:05	308.9	0.9	UT26-2-005	HPF	sci	1.88		19.19	0.78	179		Yes
0023	QID 786	04:11	308.9	0.9	UT26-2-005	HPF	sci	1.76		19.24	0.82	201		Yes
0024	QID 786	04:16	308.9	-0.1	UT26-2-005	HPF	sci	1.70	0.76	19.29	0.83	212		Yes
0025	QID 786	04:22	308.9	0.9	UT26-2-005	HPF	sci	1.69	0.94	19.32	0.83	219		Yes
0026	QID 735	04:39	969.1	3.8	UT26-2-007	HPF	sci	1.64	1.07	19.13		16		P4
virus0000007_01	parallel	04:39	1023			VIRUS	sci							Yes
0027	QID 119	05:04	969.1	7.8	UT26-2-019	HPF	sci	1.73		18.12	0.86	258		P4
virus0000008_01	parallel	05:04	1023			VIRUS	sci							Yes
0028	LFC Cal	05:22	106.5			HPF	cal							Yes
0029	QID 746	05:26	969.1	5.8	UT26-2-007	HPF	sci	1.63		17.71	0.79	20	Moon nearby, sky brighter than requested.	No
virus0000009_01	parallel	05:26	1023			VIRUS	sci							Yes
0030	QID 674	06:28	969.1	5.8	PSU26-2-013	HPF	sci	1.94	0.89	18.92	0.99	194		Yes
virus0000010_01	parallel	06:28	2047			VIRUS	sci							Yes
0031	QID 674	06:45	969.1	1.8	PSU26-2-013	HPF	sci	1.90	1.19	18.83	0.92	167		Yes
0032	LFC Cal	07:03	106.5			HPF	cal							Yes
0033	HR4828_tell_std	07:11	117.2	9.0		HPF	telluric	1.98	0.98	18.33	0.91			Yes
0034	QID 807	07:19	969.1	5.8	PSU26-2-015	HPF	sci	1.66	0.86	19.06	0.93	127		Yes
virus0000011_01	parallel	07:19	2047			VIRUS	sci							Yes
0035	QID 807	07:36	969.1	0.8	PSU26-2-015	HPF	sci	1.83	0.92	19.40	0.91	126		Yes
0036	LFC Cal	07:54	106.5			HPF	cal							Yes
0037	QID 863	08:02	841.4	10.0	UT26-2-009	HPF	sci	2.16	0.92	19.28	0.70	30	Seeing worsened during first three exposures, poor image quality.	No
virus0000012_01	parallel	08:02	4526			VIRUS	sci							Yes
0038	QID 863	08:17	841.4	1.0	UT26-2-009	HPF	sci	2.36	0.99	19.58	0.87	30		No
0039	QID 863	08:32	841.4	1.0	UT26-2-009	HPF	sci	2.26	1.08	19.73	0.92	30		No
0040	QID 863	08:47	841.4	2.0	UT26-2-009	HPF	sci	1.90	0.85	19.57	1.01	26		No
0041	QID 101	09:39	969.1	4.8	UT26-2-019	HPF	sci	2.08	1.74	19.90	0.99	277		Yes
virus0000013_01	parallel	09:39	1023			VIRUS	sci							Yes
0042	LFC Cal	09:57	106.5			HPF	cal							Yes
0043	LFC Cal	10:05	106.5			HPF	cal							Yes
virus0000014_01	parallel	10:05	300			VIRUS	sci							Yes
lrs20000009_01	QID 637	10:05	300	10.0	PSU26-2-004	LRS2-B	sci	2.35		21.35	1.25			Yes
0044	LFC Cal	10:07	106.5			HPF	cal							Yes
lrs20000010_01	parallel	10:15	360			LRS2	sci							Yes
virus0000015_01	QID 551	10:15	360	5.0	UT26-2-016	VIRUS	sci	2.29		21.83	1.23			Yes
0045	LFC Cal	10:16	106.5			HPF	cal							Yes
0046	LFC Cal	10:18	106.5			HPF	cal							Yes
lrs20000010_02	parallel	10:23	360			LRS2	sci							Yes
virus0000015_02	QID 551	10:23	360	2.0	UT26-2-016	VIRUS	sci	2.17		21.88	1.12			Yes
lrs20000010_03	parallel	10:30	360			LRS2	sci							Yes
virus0000015_03	QID 551	10:30	360	1.0	UT26-2-016	VIRUS	sci	2.21		21.95	1.08			Yes
0047	LFC Cal	10:47	106.5			HPF	cal							Yes
virus0000016_01	parallel	10:47	300			VIRUS	sci							Yes
lrs20000011_01	QID 405	10:47	300	7.0	UT26-2-017	LRS2-B	sci	2.75		21.55	0.98		Poor image quality, seeing degraded.	No
0048	LFC Cal	10:49	106.5			HPF	cal							Yes
0049	LFC Cal	10:57	106.5			HPF	cal							Yes
virus0000017_01	parallel	10:57	600			VIRUS	sci							Yes
lrs20000012_01	QID 406	10:57	600	5.0	UT26-2-017	LRS2-R	sci	2.37		20.60	1.01			No
0050	LFC Cal	10:59	106.5			HPF	cal							Yes
0051	LFC Cal	11:02	106.5			HPF	cal							Yes
0052	QID 189	11:13	95.9	6.4	UT26-2-011	HPF	sci	2.19		19.53	0.88	333		Yes
lrs20000013_01	bias	11:17	0			LRS2	cal							Yes
virus0000018_01	bias	11:18	0			VIRUS	cal							Yes
virus0000019_01	Cd-A	11:22	15		ENG26-2-002	VIRUS	cal							Yes
virus0000020_01	Hg	11:23	15		ENG26-2-002	VIRUS	cal							Yes
0053	Dark	11:44	319.5			HPF	cal							Yes
0054	Quartz FCU	11:56	74.5			HPF	cal							Yes
0055	Quartz FCU	11:58	74.5			HPF	cal							Yes
0056	Quartz FCU	11:59	74.5			HPF	cal							Yes
0057	Quartz FCU	12:01	74.5			HPF	cal							Yes
0058	Quartz FCU	12:03	74.5			HPF	cal							Yes
0059	Quartz FCU	12:05	74.5			HPF	cal							Yes
0060	Quartz FCU	12:06	74.5			HPF	cal							Yes
0061	Alpha Bright Cal	12:09	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	12:11	85.2			HPF	cal							Yes
0063	Alpha Bright Cal	12:13	85.2			HPF	cal							Yes
0064	Alpha Bright Cal	12:15	85.2			HPF	cal							Yes
0065	LFC FCU	12:17	106.5			HPF	cal							Yes
0066	LFC FCU	12:20	106.5			HPF	cal							Yes
0067	LFC FCU	12:22	106.5			HPF	cal							Yes
0068	LFC FCU	12:24	106.5			HPF	cal							Yes
0069	LFC FCU	12:27	106.5			HPF	cal							Yes
0070	LFC FCU	12:29	106.5			HPF	cal							Yes
0071	LFC Cal	12:32	106.5			HPF	cal							Yes
0072	LFC Cal	12:34	106.5			HPF	cal							Yes
0073	Etalon Cal	12:42	159.8			HPF	cal							Yes
0074	Etalon Cal	12:45	159.8			HPF	cal							Yes
0075	Etalon Cal	12:48	159.8			HPF	cal							Yes
0076	Etalon Cal	12:52	159.8			HPF	cal							Yes
0077	UNe Slave Cal	12:55	426			HPF	cal							Yes
0078	UNe Slave Cal	13:03	426			HPF	cal							Yes
0079	UNe Slave Cal	13:11	426			HPF	cal							Yes
0080	UNe Slave Cal	13:18	426			HPF	cal							Yes
0081	UNe Slave Cal	13:26	426			HPF	cal							Yes
0082	UNe Slave Cal	13:34	426			HPF	cal							Yes
lrs20009900_01	bias	23:32	0			LRS2	cal							Yes
0095	LFC Cal	23:33	106.5			HPF	cal							Yes
virus0009900_01	flat_Qth	23:33	20			VIRUS	cal							Yes
virus0009901_01	bias	23:34	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:35	20			LRS2	cal							Yes
virus0009902_01	dark	23:36	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:37	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:39	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:40	15			LRS2	cal							Yes
0096	Dark	23:42	319.5			HPF	cal							Yes
0097	Quartz FCU	23:49	74.5			HPF	cal							Yes
0098	Quartz FCU	23:51	74.5			HPF	cal							Yes
0099	Quartz FCU	23:52	74.5			HPF	cal							Yes
0100	Quartz FCU	23:54	74.5			HPF	cal							Yes
0101	Quartz FCU	23:56	74.5			HPF	cal							Yes
0102	Quartz FCU	23:58	74.5			HPF	cal							Yes