HET Night Report Reader

Civil Date	Ephemerides
2026-01-27	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:35	01:22	01:51	12:26	12:55	13:42	-	09:49
Night Length	10:35		Sunset Temperature

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

Overlaps
TO Overlap	RA Overlap
-	Sergey Rostopchin

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:32	3.4	6.2	13:00	twilight	12:28
Total Time Open					12:28

Program	Night Priority	Science
01:51	Science
07:44	Idle due to weather (Clouds)
08:26	Idle due to weather (Clouds)
12:04	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:07	02:06	0.45	0.71	-10	+1636	2.4	3.0	3.1	283	20	First of Night
07:57	08:26					5.3	4.9	4.7	348	14	Stack/Re-stack
12:53	12:59	0.58	0.94	-80	+2227	3.9	4.3	4.2	3	4	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6636	01:30-01:35	00:05	HObs Not Scheduling some LRS2 AND-group Targets	I will have to execute some of these targets manually outside of HObs.
6637	08:00-08:05	00:05	AOA RS-170 feed out of sync on wave computer; stacking delayed slightly

TO Comments	Thin cirrus clouds significantly impacted transparency.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000024_02	flat_ldls_long	00:00	15			VIRUS	cal							Yes
virus0000024_03	flat_ldls_long	00:01	15			VIRUS	cal							Yes
virus0000025_01	Cd-A	00:03	15			VIRUS	cal							Yes
virus0000025_02	Cd-A	00:04	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:05	426			HPF	cal							Yes
virus0000025_03	Cd-A	00:05	15			VIRUS	cal							Yes
virus0000026_01	Hg	00:07	15			VIRUS	cal							Yes
virus0000026_02	Hg	00:08	15			VIRUS	cal							Yes
virus0000026_03	Hg	00:10	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:11	360			LRS2	cal							Yes
virus0000001_01	dark	00:11	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:18	360			LRS2	cal							Yes
virus0000001_02	dark	00:18	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:25	360			LRS2	cal							Yes
virus0000001_03	dark	00:25	360			VIRUS	cal							Yes
lrs20000002_01	skyflat	00:39	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:40	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:42	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:43	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:44	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:45	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:48	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:50	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:51	14			VIRUS	cal							Yes
virus0000005_01	skyflat	00:52	18			VIRUS	cal							Yes
virus0000006_01	skyflat	00:54	26			VIRUS	cal							Yes
lrs20000008_01	bias	01:03	0			LRS2	cal							Yes
virus0000007_01	bias	01:03	0			VIRUS	cal							Yes
lrs20000008_02	bias	01:04	0			LRS2	cal							Yes
virus0000007_02	bias	01:04	0			VIRUS	cal							Yes
lrs20000008_03	bias	01:05	0			LRS2	cal							Yes
virus0000007_03	bias	01:05	0			VIRUS	cal							Yes
lrs20000008_04	bias	01:06	0			LRS2	cal							Yes
virus0000007_04	bias	01:06	0			VIRUS	cal							Yes
lrs20000008_05	bias	01:07	0			LRS2	cal							Yes
virus0000007_05	bias	01:07	0			VIRUS	cal							Yes
lrs20000008_06	bias	01:08	0			LRS2	cal							Yes
virus0000007_06	bias	01:08	0			VIRUS	cal							Yes
lrs20000008_07	bias	01:08	0			LRS2	cal							Yes
virus0000007_07	bias	01:09	0			VIRUS	cal							Yes
lrs20000008_08	bias	01:09	0			LRS2	cal							Yes
virus0000007_08	bias	01:09	0			VIRUS	cal							Yes
lrs20000008_09	bias	01:10	0			LRS2	cal							Yes
virus0000007_09	bias	01:10	0			VIRUS	cal							Yes
lrs20000008_10	bias	01:11	0			LRS2	cal							Yes
virus0000007_10	bias	01:11	0			VIRUS	cal							Yes
lrs20000008_11	bias	01:12	0			LRS2	cal							Yes
virus0000007_11	bias	01:12	0			VIRUS	cal							Yes
0002	QID 1799	02:12	969.1	5.8	UT26-1-014	HPF	sci	1.95	1.22	18.37	1.01	320		P4
virus0000008_01	parallel	02:12	1023			VIRUS	sci							Yes
0003	LFC Cal	02:30	106.5			HPF	cal							Yes
virus0000009_01	parallel	02:36	2083			VIRUS	sci							Yes
0004	QID 1955	02:37	649.6	8.2	UT26-1-010	HPF	sci	2.50	2.17	18.90	0.88	225		Yes
0005	QID 1955	02:48	649.6	1.2	UT26-1-010	HPF	sci	2.20	1.62	19.07	0.91	293		Yes
0006	QID 1955	03:00	649.6	1.2	UT26-1-010	HPF	sci	2.32	1.87	19.00	0.93	240		Yes
0007	LFC Cal	03:12	106.5			HPF	cal							Yes
0008	QID 1946	03:20	969.1	8.8	UT26-1-010	HPF	sci	1.98	2.04	18.35	0.75	107		Yes
virus0000010_01	parallel	03:20	2047			VIRUS	sci							Yes
0009	QID 1946	03:37	969.1	1.8	UT26-1-010	HPF	sci	1.73	1.39	18.44	0.80	119		Yes
0010	LFC Cal	03:55	106.5			HPF	cal							Yes
0011	QID 1965	04:00	969.1	6.8	UT26-1-010	HPF	sci	1.76	1.15	17.59	0.95	73		Yes
virus0000011_01	parallel	04:00	2047			VIRUS	sci							Yes
0012	QID 1965	04:18	969.1	0.8	UT26-1-010	HPF	sci	1.72	1.09	17.66	0.99	74		Yes
0013	LFC Cal	04:35	106.5			HPF	cal							Yes
0014	QID 1928	04:41	617.7	7.7	UT26-1-007	HPF	sci	1.78	0.95	19.64	0.88	61		Yes
virus0000012_01	parallel	04:41	1984			VIRUS	sci							Yes
0015	QID 1928	04:52	617.7	0.7	UT26-1-007	HPF	sci	1.78	1.20	19.53	0.89	54		Yes
0016	QID 1928	05:04	617.7	0.7	UT26-1-007	HPF	sci	1.70	1.05	19.40	1.01	50		Yes
0017	LFC Cal	05:15	106.5			HPF	cal							Yes
virus0000013_01	parallel	05:20	1023			VIRUS	sci							Yes
0018	QID 1820	05:21	969.1	6.8	UT26-1-014	HPF	sci	1.57	1.24	19.65	0.81	299		P4
0019	LFC Cal	05:39	106.5			HPF	cal							Yes
virus0000014_01	parallel	05:42	3600			VIRUS	sci							Yes
0020	LFC Cal	05:43	106.5			HPF	cal							Yes
lrs20000009_01	QID 2519	05:43	3600	6.0	UT26-1-004	LRS2-B	sci	1.65	0.79	19.78	0.77			Yes
0021	LFC Cal	05:45	106.5			HPF	cal							Yes
0022	LFC Cal	05:47	106.5			HPF	cal							Yes
lrs20000010_01	HD37725_056_W	06:50	15	6.8		LRS2	spec	1.55	0.79	18.06	0.69			Yes
lrs20000011_01	HD37725_066_W	06:54	15	3.8		LRS2	spec	1.60	0.82	17.43	0.74			Yes
0023	HR4227_tell_std	07:02	117.2	8.0		HPF	telluric	1.85	0.89	19.16	0.67			Yes
0024	QID 1956	07:10	649.6	6.2	UT26-1-010	HPF	sci	2.04	1.28	19.12	0.62	254		Yes
virus0000015_01	parallel	07:10	2083			VIRUS	sci							Yes
0025	QID 1956	07:22	649.6	1.2	UT26-1-010	HPF	sci	1.91	1.17	19.04	0.62	260		Yes
0026	QID 1956	07:33	649.6	0.2	UT26-1-010	HPF	sci	1.74	1.19	19.08	0.64	254		Yes
0027	LFC Cal	07:46	106.5			HPF	cal							Yes
0028	QID 1841	07:55	32	11.5	PSU26-1-011	HPF	sci	2.13	0.78	19.02	0.39	280	Clouds, low transparency.	No
0029	LFC Cal	08:32	106.5			HPF	cal							Yes
virus0000016_01	parallel	08:32	600			VIRUS	sci							Yes
lrs20000012_01	QID 2513	08:32	600	6.0	UT26-1-002	LRS2-B	sci	1.64	1.21	19.78	0.51		Clouds, low transparency.	No
0030	LFC Cal	08:35	106.5			HPF	cal							Yes
0031	LFC Cal	08:37	106.5			HPF	cal							Yes
0032	LFC Cal	08:46	106.5			HPF	cal							Yes
virus0000017_01	parallel	08:46	600			VIRUS	sci							Yes
lrs20000013_01	QID 2514	08:46	600	4.0	UT26-1-002	LRS2-R	sci	1.46	1.15	19.06	0.42			No
0033	LFC Cal	08:48	106.5			HPF	cal							Yes
0034	LFC Cal	08:51	106.5			HPF	cal							Yes
0035	QID 1410	09:04	969.1	7.8	PSU26-1-002	HPF	sci	1.51	1.02	18.79	0.40	164	Clouds, low transparency.	No
virus0000018_01	parallel	09:04	2047			VIRUS	sci							Yes
0036	QID 1410	09:21	969.1	0.8	PSU26-1-002	HPF	sci	1.62	1.40	19.11	0.46	195		No
0037	LFC Cal	09:39	106.5			HPF	cal							Yes
lrs20000014_01	parallel	09:50	360			LRS2	sci							Yes
virus0000019_01	QID 1967	09:50	360	4.0	UT26-1-008	VIRUS	sci	1.57	1.37	21.64	0.41		Clouds, low transparency.	No
0038	LFC Cal	09:51	106.5			HPF	cal							Yes
0039	LFC Cal	09:53	106.5			HPF	cal							Yes
lrs20000014_02	parallel	09:58	360			LRS2	sci							Yes
virus0000019_02	QID 1967	09:58	360	2.0	UT26-1-008	VIRUS	sci	1.61	1.22	21.86	0.45			No
lrs20000014_03	parallel	10:05	360			LRS2	sci							Yes
virus0000019_03	QID 1967	10:05	360	1.0	UT26-1-008	VIRUS	sci	1.66	1.35	21.96	0.43			No
lrs20000015_01	parallel	10:18	360			LRS2	sci							Yes
virus0000020_01	QID 379	10:18	360	7.0	UT26-1-008	VIRUS	sci	1.46	1.10	21.65	0.48		Clouds, low transparency, aborted after second dither.	No
0040	LFC Cal	10:19	106.5			HPF	cal							Yes
0041	LFC Cal	10:21	106.5			HPF	cal							Yes
lrs20000015_02	parallel	10:25	360			LRS2	sci							Yes
virus0000020_02	QID 379	10:25	360	1.0	UT26-1-008	VIRUS	sci	1.33	1.12	21.69	0.41			No
virus0000021_01	parallel	10:38	3600			VIRUS	sci							Yes
0042	LFC Cal	10:39	106.5			HPF	cal							Yes
lrs20000016_01	QID 2520	10:39	3600	8.0	UT26-1-004	LRS2-R	sci	1.51	1.59	21.69	0.37		Clouds, low transparency.	No
0043	LFC Cal	10:41	106.5			HPF	cal							Yes
0044	LFC Cal	10:43	106.5			HPF	cal							Yes
0045	LFC Cal	11:44	106.5			HPF	cal							Yes
lrs20000017_01	parallel	11:44	360			LRS2	sci							Yes
virus0000022_01	QID 1985	11:44	360	5.0	UT26-1-008	VIRUS	sci	1.69	1.44	21.62	0.30		Clouds, low transparency.	No
0046	LFC Cal	11:47	106.5			HPF	cal							Yes
lrs20000017_02	parallel	11:51	360			LRS2	sci							Yes
virus0000022_02	QID 1985	11:51	360	1.0	UT26-1-008	VIRUS	sci	1.93	1.56	21.61	0.24			No
lrs20000017_03	parallel	11:58	360			LRS2	sci							Yes
virus0000022_03	QID 1985	11:58	360	1.0	UT26-1-008	VIRUS	sci	2.02	1.71	21.60	0.23			No
0047	LFC Cal	12:11	106.5			HPF	cal							Yes
virus0000023_01	parallel	12:11	300			VIRUS	sci							Yes
lrs20000018_01	QID 62	12:11	300	7.0	PSU26-1-003	LRS2-R	sci	2.11	1.34	20.49	0.47			P4
0048	LFC Cal	12:14	106.5			HPF	cal							Yes
0049	LFC Cal	12:21	106.5			HPF	cal							Yes
virus0000024_01	parallel	12:21	300			VIRUS	sci							Yes
lrs20000019_01	QID 30	12:21	300	5.0	PSU26-1-003	LRS2-R	sci	1.80	1.47	20.53	0.53			P4
0050	LFC Cal	12:24	106.5			HPF	cal							Yes
0051	LFC Cal	12:33	106.5			HPF	cal							Yes
virus0000025_01	parallel	12:33	300			VIRUS	sci							Yes
lrs20000020_01	QID 32	12:33	300	7.0	PSU26-1-003	LRS2-B	sci	1.67	1.16	21.48	0.53			P4
0052	LFC Cal	12:35	106.5			HPF	cal							Yes
virus0000026_01	parallel	12:46	300			VIRUS	sci							Yes
lrs20000021_01	QID 58	12:46	300	8.0	PSU26-1-003	LRS2-R	sci	1.46	1.33	19.98	0.72			P4
0053	LFC Cal	12:47	106.5			HPF	cal							Yes
0054	LFC Cal	12:49	106.5			HPF	cal							Yes
lrs20000022_01	bias	12:53	0			LRS2	cal							Yes
virus0000027_01	bias	12:53	0			VIRUS	cal							Yes
virus0000028_01	Cd-A	12:58	15		ENG26-1-002	VIRUS	cal							Yes
virus0000029_01	Hg	12:59	15		ENG26-1-002	VIRUS	cal							Yes
0055	Dark	13:07	319.5			HPF	cal							Yes
0056	Quartz FCU	13:19	74.5			HPF	cal							Yes
0057	Quartz FCU	13:21	74.5			HPF	cal							Yes
0058	Quartz FCU	13:22	74.5			HPF	cal							Yes
0059	Quartz FCU	13:24	74.5			HPF	cal							Yes
0060	Quartz FCU	13:26	74.5			HPF	cal							Yes
0061	Quartz FCU	13:28	74.5			HPF	cal							Yes
0062	Quartz FCU	13:30	74.5			HPF	cal							Yes
0063	Alpha Bright Cal	13:32	85.2			HPF	cal							Yes
0064	Alpha Bright Cal	13:34	85.2			HPF	cal							Yes
0065	Alpha Bright Cal	13:36	85.2			HPF	cal							Yes
0066	Alpha Bright Cal	13:38	85.2			HPF	cal							Yes
0067	LFC FCU	13:41	106.5			HPF	cal							Yes
0068	LFC FCU	13:43	106.5			HPF	cal							Yes
0069	LFC FCU	13:45	106.5			HPF	cal							Yes
0070	LFC FCU	13:47	106.5			HPF	cal							Yes
0071	LFC FCU	13:50	106.5			HPF	cal							Yes
0072	LFC FCU	13:52	106.5			HPF	cal							Yes
0073	LFC Cal	13:55	106.5			HPF	cal							Yes
0074	LFC Cal	13:57	106.5			HPF	cal							Yes
0075	Etalon Cal	14:05	159.8			HPF	cal							Yes
0076	Etalon Cal	14:08	159.8			HPF	cal							Yes
0077	Etalon Cal	14:11	159.8			HPF	cal							Yes
0078	Etalon Cal	14:15	159.8			HPF	cal							Yes
0079	UNe Slave Cal	14:18	426			HPF	cal							Yes
0080	UNe Slave Cal	14:26	426			HPF	cal							Yes
0081	UNe Slave Cal	14:34	426			HPF	cal							Yes
0082	UNe Slave Cal	14:42	426			HPF	cal							Yes
0083	UNe Slave Cal	14:49	426			HPF	cal							Yes
virus0008100_01	dark	14:54	20			VIRUS	cal							Yes
virus0008100_02	dark	14:55	20			VIRUS	cal							Yes
0084	UNe Slave Cal	14:57	426			HPF	cal							Yes
0093	LFC Cal	22:07	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:28	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:29	20			VIRUS	cal							Yes
virus0009901_01	bias	22:30	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:31	20			LRS2	cal							Yes
virus0009902_01	dark	22:32	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:33	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:35	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:36	15			LRS2	cal							Yes
0094	Dark	22:44	319.5			HPF	cal							Yes
0095	Quartz FCU	22:51	74.5			HPF	cal							Yes
0096	Quartz FCU	22:53	74.5			HPF	cal							Yes
0097	Quartz FCU	22:55	74.5			HPF	cal							Yes
0098	Quartz FCU	22:56	74.5			HPF	cal							Yes
0099	Quartz FCU	22:58	74.5			HPF	cal							Yes
0100	Quartz FCU	23:00	74.5			HPF	cal							Yes
0101	Quartz FCU	23:02	74.5			HPF	cal							Yes
0102	Alpha Bright Cal	23:04	85.2			HPF	cal							Yes
0103	Alpha Bright Cal	23:06	85.2			HPF	cal							Yes
0104	Alpha Bright Cal	23:08	85.2			HPF	cal							Yes
0105	Alpha Bright Cal	23:10	85.2			HPF	cal							Yes
0106	LFC FCU	23:12	106.5			HPF	cal							Yes
0107	LFC FCU	23:15	106.5			HPF	cal							Yes
0108	LFC Cal	23:18	106.5			HPF	cal							Yes
0109	LFC Cal	23:20	106.5			HPF	cal							Yes
0110	Etalon Cal	23:23	159.8			HPF	cal							Yes
0111	UNe Slave Cal	23:26	426			HPF	cal							Yes
lrs20000015_01	flat_Qth_R	23:27	15			LRS2	cal							Yes
lrs20000015_02	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000015_03	flat_Qth_R	23:30	15			LRS2	cal							Yes
lrs20000015_04	flat_Qth_R	23:31	15			LRS2	cal							Yes
lrs20000015_05	flat_Qth_R	23:32	15			LRS2	cal							Yes
lrs20000016_01	flat_ldls_long_B	23:33	20			LRS2	cal							Yes
0112	UNe Slave Cal	23:34	426			HPF	cal							Yes
lrs20000016_02	flat_ldls_long_B	23:35	20			LRS2	cal							Yes
lrs20000016_03	flat_ldls_long_B	23:36	20			LRS2	cal							Yes
lrs20000017_01	Cd-A_B	23:37	29			LRS2	cal							Yes
lrs20000017_02	Cd-A_B	23:39	29			LRS2	cal							Yes
lrs20000017_03	Cd-A_B	23:40	29			LRS2	cal							Yes
0113	UNe Slave Cal	23:42	426			HPF	cal							Yes
lrs20000018_01	FeAr_R	23:42	15			LRS2	cal							Yes
lrs20000018_02	FeAr_R	23:43	15			LRS2	cal							Yes
lrs20000018_03	FeAr_R	23:44	15			LRS2	cal							Yes
lrs20000019_01	Hg_R	23:45	20			LRS2	cal							Yes
lrs20000019_02	Hg_R	23:47	20			LRS2	cal							Yes
lrs20000019_03	Hg_R	23:48	20			LRS2	cal							Yes
0114	UNe Slave Cal	23:49	426			HPF	cal							Yes
lrs20000020_01	Hg_B	23:49	15			LRS2	cal							Yes
lrs20000020_02	Hg_B	23:51	15			LRS2	cal							Yes
lrs20000020_03	Hg_B	23:52	15			LRS2	cal							Yes
0115	UNe Slave Cal	23:57	426			HPF	cal							Yes
virus0000024_01	flat_ldls_long	23:58	15			VIRUS	cal							Yes