HET Night Report Reader

Civil Date	Ephemerides
2026-02-03	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:41	01:27	01:56	12:23	12:51	13:38	02:45	-
Night Length	10:27		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
00:34	6.5	8.2	12:58	twilight	12:24
Total Time Open					12:24

Program	Night Priority	Science
01:56	Science
02:04	Idle due to weather (Clouds)
02:19	Science
02:29	Idle due to weather (Clouds)
02:40	Science
02:52	Idle due to weather (Clouds)
04:35	Science
04:45	Idle due to weather (Clouds)
06:48	Science
08:03	Idle due to weather (Clouds)
08:49	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:06	01:50	0.39	0.63	5	+466	7.7	8.0	7.9	248	6	First of Night
11:53	12:24				+1728	2.2	2.9	3.0	8	8	Stack/Re-stack
↪ Comments			Quick stack due to how little time left in night.
12:49	12:55	1.14	1.76	-355	+1878	0.7	1.7	2.0	49	8	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6554	06:48-06:51	00:03	HPF ACQ set exposure busy.

TO Comments	Thin clouds all night and dropping temps at EON.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000026_03	flat_ldls_long	00:00	15			VIRUS	cal							Yes
virus0000027_01	Cd-A	00:01	15			VIRUS	cal							Yes
virus0000027_02	Cd-A	00:03	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:04	426			HPF	cal							Yes
virus0000027_03	Cd-A	00:04	15			VIRUS	cal							Yes
virus0000028_01	Hg	00:06	15			VIRUS	cal							Yes
virus0000028_02	Hg	00:07	15			VIRUS	cal							Yes
virus0000028_03	Hg	00:08	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:10	360			LRS2	cal							Yes
virus0000001_01	dark	00:10	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:17	360			LRS2	cal							Yes
virus0000001_02	dark	00:17	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:23	360			LRS2	cal							Yes
virus0000001_03	dark	00:24	360			VIRUS	cal							Yes
lrs20000002_01	skyflat	00:46	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:47	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:48	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:49	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:50	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:52	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:55	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:56	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:57	14			VIRUS	cal							Yes
virus0000005_01	skyflat	00:59	18			VIRUS	cal							Yes
virus0000006_01	skyflat	01:00	26			VIRUS	cal							Yes
lrs20000008_01	bias	01:06	0			LRS2	cal							Yes
virus0000007_01	bias	01:06	0			VIRUS	cal							Yes
lrs20000008_02	bias	01:07	0			LRS2	cal							Yes
virus0000007_02	bias	01:07	0			VIRUS	cal							Yes
lrs20000008_03	bias	01:07	0			LRS2	cal							Yes
virus0000007_03	bias	01:08	0			VIRUS	cal							Yes
lrs20000008_04	bias	01:08	0			LRS2	cal							Yes
virus0000007_04	bias	01:09	0			VIRUS	cal							Yes
lrs20000008_05	bias	01:09	0			LRS2	cal							Yes
virus0000007_05	bias	01:09	0			VIRUS	cal							Yes
lrs20000008_06	bias	01:10	0			LRS2	cal							Yes
virus0000007_06	bias	01:10	0			VIRUS	cal							Yes
lrs20000008_07	bias	01:11	0			LRS2	cal							Yes
virus0000007_07	bias	01:11	0			VIRUS	cal							Yes
lrs20000008_08	bias	01:12	0			LRS2	cal							Yes
virus0000007_08	bias	01:12	0			VIRUS	cal							Yes
lrs20000008_09	bias	01:13	0			LRS2	cal							Yes
virus0000007_09	bias	01:13	0			VIRUS	cal							Yes
lrs20000008_10	bias	01:14	0			LRS2	cal							Yes
virus0000007_10	bias	01:14	0			VIRUS	cal							Yes
lrs20000008_11	bias	01:14	0			LRS2	cal							Yes
virus0000007_11	bias	01:15	0			VIRUS	cal							Yes
0002	LFC Cal	01:57	106.5			HPF	cal							Yes
lrs20000009_01	QID 1065	01:57	180	6.0	PSU26-1-016	LRS2-B	sci	1.34	0.79	21.51	0.51			Yes
lrs20000009_02	QID 1065	02:01	180	1.0	PSU26-1-016	LRS2-B	sci	1.19	0.77	21.53	0.51			Yes
lrs20000010_01	QID 1054	02:12	150	8.5	PSU26-1-016	LRS2-B	sci	1.39	0.79	21.53	0.45		Clouds, low transparency during first exposure.	No
lrs20000010_02	QID 1054	02:16	150	1.5	PSU26-1-016	LRS2-B	sci	1.43	1.05	21.57	0.69			No
0003	LFC Cal	02:22	106.5			HPF	cal							Yes
lrs20000011_01	QID 1069	02:22	180	3.0	PSU26-1-016	LRS2-B	sci	1.37	0.94	21.49	0.66			Yes
lrs20000011_02	QID 1069	02:26	180	1.0	PSU26-1-016	LRS2-B	sci	1.46	0.79	21.44	0.52			Yes
0004	LFC Cal	02:33	106.5			HPF	cal							Yes
lrs20000012_01	QID 1068	02:33	180	4.0	PSU26-1-016	LRS2-B	sci	1.42	0.95	21.18	0.47		Clouds, low transparency.	No
lrs20000012_02	QID 1068	02:37	180	1.0	PSU26-1-016	LRS2-B	sci	1.50	0.95	21.00	0.45			No
lrs20000013_01	HD55677_056_E	02:48	30	7.5		LRS2	spec	1.98	0.98	20.36	0.39			Yes
lrs20000014_01	HD55677_066_E	02:51	30	3.5		LRS2	spec	1.53	0.90	19.81	0.38			Yes
virus0000008_01	parallel	02:58	2047			VIRUS	sci							Yes
0005	QID 1946	02:59	969.1	6.8	UT26-1-010	HPF	sci	1.30	1.03	19.13	0.45	112	Clouds, low transparency.	No
0006	QID 1946	03:16	969.1	0.8	UT26-1-010	HPF	sci	1.44	1.02	18.37	0.26	69		No
0007	LFC Cal	03:34	106.5			HPF	cal							Yes
virus0000009_01	parallel	03:40	891			VIRUS	sci							Yes
0008	QID 1770	03:41	841.4	9.0	UT26-1-014	HPF	sci	1.96	1.13	17.36	0.33	238	Clouds, low transparency.	No
0009	LFC Cal	03:56	106.5			HPF	cal							Yes
0010	QID 2516	04:02	969.1	6.8	UT26-1-003	HPF	sci	1.47	1.01	17.69	0.30	21	Clouds, low transparency.	No
virus0000010_01	parallel	04:02	2047			VIRUS	sci							Yes
0011	QID 2516	04:19	969.1	0.8	UT26-1-003	HPF	sci	1.46	1.30	17.58	0.30	21		No
0012	HR1191_tell_std	04:43	117.2	8.0		HPF	telluric	1.62	0.89	17.67	0.35			Yes
0013	QID 144	04:53	969.1	7.8	UT26-1-003	HPF	sci	1.51	0.94	17.82	0.39	12	Clouds, low transparency.	No
virus0000011_01	parallel	04:53	2047			VIRUS	sci							Yes
0014	QID 144	05:10	969.1	0.8	UT26-1-003	HPF	sci	1.53	0.95	17.77	0.46	14		No
virus0000012_01	parallel	05:33	583			VIRUS	sci							Yes
0015	QID 1763	05:34	532.5	7.1	UT26-1-014	HPF	sci	1.52	0.85	17.50	0.33	322	Clouds, low transparency.	No
0016	LFC Cal	05:44	106.5			HPF	cal							Yes
0017	QID 2532	05:48	308.9	5.9	UT26-1-009	HPF	sci	1.65	1.05	16.79	0.43	70	Clouds, low transparency, high sky brightness.	No
virus0000013_01	parallel	05:48	1417			VIRUS	sci							Yes
0018	QID 2532	05:54	308.9	0.9	UT26-1-009	HPF	sci	1.69	1.01	16.94	0.48	79		No
0019	QID 2532	06:00	308.9	0.9	UT26-1-009	HPF	sci	1.74	1.04	17.00	0.50	74		No
0020	QID 2532	06:06	308.9	0.9	UT26-1-009	HPF	sci	1.78	1.03	17.04	0.51	74		No
0021	QID 137	06:18	713.6	7.1	UT26-1-009	HPF	sci	1.82	1.23	18.04	0.63	67	Clouds, high sky brightness.	No
virus0000014_01	parallel	06:18	1541			VIRUS	sci							Yes
0022	QID 137	06:31	713.6	1.1	UT26-1-009	HPF	sci	1.75	1.09	17.79	0.50	62		No
0023	HR2304_tell_std	06:56	330.2	4.5		HPF	telluric	1.76	1.06	17.76	0.47			Yes
0024	HR2398_tell_std	07:08	117.2	6.0		HPF	telluric	1.57	0.97	18.14	0.66			Yes
virus0000015_01	parallel	07:15	2941			VIRUS	sci							Yes
0025	QID 1107	07:16	915.9	6.7	UT26-1-006	HPF	sci	1.49	1.22	18.27	0.67	107		Yes
0026	QID 1107	07:32	915.9	0.7	UT26-1-006	HPF	sci	1.77	1.20	18.25	0.72	106		Yes
0027	QID 1107	07:48	915.9	0.7	UT26-1-006	HPF	sci	1.66	1.11	17.93	0.64	93		Yes
virus0000016_01	parallel	08:10	1023			VIRUS	sci							Yes
0028	QID 1784	08:11	969.1	7.8	UT26-1-014	HPF	sci	1.76	1.27	17.72	0.47	259	Clouds, low transparency.	No
0029	LFC Cal	08:29	106.5			HPF	cal							Yes
0030	QID 1770	08:35	841.4	8.0	UT26-1-014	HPF	sci	1.74	1.01	17.45	0.45	407	Clouds, low transparency.	No
virus0000017_01	parallel	08:35	891			VIRUS	sci							Yes
0031	LFC Cal	08:51	106.5			HPF	cal							Yes
virus0000018_01	parallel	08:53	1984			VIRUS	sci							Yes
0032	QID 1931	08:54	617.7	4.7	UT26-1-007	HPF	sci	1.52	0.95	17.21	0.52	26		Yes
0033	QID 1931	09:05	617.7	0.7	UT26-1-007	HPF	sci	1.45	0.92	17.32	0.56	26		Yes
0034	QID 1931	09:16	617.7	0.7	UT26-1-007	HPF	sci	1.42	0.87	17.32	0.56	23		Yes
0035	LFC Cal	09:28	106.5			HPF	cal							Yes
0036	QID 138	09:34	617.7	7.7	UT26-1-009	HPF	sci	1.67	1.00	17.83	0.51	106		P4
virus0000019_01	parallel	09:34	1321			VIRUS	sci							Yes
0037	QID 138	09:45	617.7	0.7	UT26-1-009	HPF	sci	1.55	0.79	18.39	0.70	131		P4
0038	QID 1819	10:03	969.1	7.8	UT26-1-014	HPF	sci	1.45	0.79	17.52	0.82	323		Yes
virus0000020_01	parallel	10:03	1023			VIRUS	sci							Yes
0039	LFC Cal	10:21	106.5			HPF	cal							Yes
0040	QID 1820	10:25	969.1	5.8	UT26-1-014	HPF	sci	1.39	0.98	18.22	0.95	340		P4
virus0000021_01	parallel	10:25	1023			VIRUS	sci							Yes
0041	LFC Cal	10:43	106.5			HPF	cal							Yes
0042	QID 1831	10:49	340.8	8.3	PSU26-1-010	HPF	sci	1.49	1.09	18.19	0.61	372		Yes
virus0000022_01	parallel	10:49	374			VIRUS	sci							Yes
0043	QID 2532	11:02	308.9	7.9	UT26-1-009	HPF	sci	1.70	1.52	17.97	0.91	95		Yes
virus0000023_01	parallel	11:02	1417			VIRUS	sci							Yes
0044	QID 2532	11:08	308.9	-0.1	UT26-1-009	HPF	sci	1.92	1.52	18.06	0.92	90		Yes
0045	QID 2532	11:14	308.9	0.9	UT26-1-009	HPF	sci	2.21	1.53	18.08	0.90	86		Yes
0046	QID 2532	11:20	308.9	0.9	UT26-1-009	HPF	sci	2.26	2.21	18.01	0.83	86		Yes
0047	LFC Cal	11:33	106.5			HPF	cal							Yes
virus0000024_01	parallel	11:33	1100			VIRUS	sci							Yes
lrs20000015_01	QID 13	11:33	1100	8.7	PSU26-1-009	LRS2-B	sci	2.90	1.54	18.69	0.77			P4
0048	LFC Cal	11:36	106.5			HPF	cal							Yes
0049	LFC Cal	11:38	106.5			HPF	cal							Yes
0050	QID 1746	12:29	42.6	5.3	UT26-1-014	HPF	sci	2.09	1.90	18.42	0.79	497		Yes
0051	LFC Cal	12:31	106.5			HPF	cal							Yes
0052	QID 1747	12:36	42.6	5.3	UT26-1-014	HPF	sci	2.48	1.77	18.40	0.75	461		Yes
0053	LFC Cal	12:38	106.5			HPF	cal							Yes
0054	QID 1748	12:42	42.6	5.3	UT26-1-014	HPF	sci	2.37	1.59	18.27	0.72	392		Yes
0055	LFC Cal	12:44	106.5			HPF	cal							Yes
0056	QID 1749	12:47	42.6	5.3	UT26-1-014	HPF	sci	2.54	1.84	18.10	0.72	400		Yes
0057	LFC Cal	12:49	106.5			HPF	cal							Yes
lrs20000016_01	bias	12:49	0			LRS2	cal							Yes
virus0000025_01	bias	12:50	0			VIRUS	cal							Yes
virus0000026_01	Cd-A	12:54	15		ENG-002	VIRUS	cal							Yes
virus0000027_01	Hg	12:56	15		ENG-002	VIRUS	cal							Yes
0058	Dark	13:05	319.5			HPF	cal							Yes
0059	Quartz FCU	13:16	74.5			HPF	cal							Yes
0060	Quartz FCU	13:18	74.5			HPF	cal							Yes
0061	Quartz FCU	13:20	74.5			HPF	cal							Yes
0062	Quartz FCU	13:22	74.5			HPF	cal							Yes
0063	Quartz FCU	13:23	74.5			HPF	cal							Yes
0064	Quartz FCU	13:25	74.5			HPF	cal							Yes
0065	Quartz FCU	13:27	74.5			HPF	cal							Yes
0066	Alpha Bright Cal	13:29	85.2			HPF	cal							Yes
0067	Alpha Bright Cal	13:31	85.2			HPF	cal							Yes
0068	Alpha Bright Cal	13:33	85.2			HPF	cal							Yes
0069	Alpha Bright Cal	13:35	85.2			HPF	cal							Yes
0070	LFC FCU	13:38	106.5			HPF	cal							Yes
0071	LFC FCU	13:40	106.5			HPF	cal							Yes
0072	LFC FCU	13:43	106.5			HPF	cal							Yes
0073	LFC FCU	13:45	106.5			HPF	cal							Yes
0074	LFC FCU	13:47	106.5			HPF	cal							Yes
0075	LFC FCU	13:50	106.5			HPF	cal							Yes
0076	LFC Cal	13:52	106.5			HPF	cal							Yes
0077	LFC Cal	13:55	106.5			HPF	cal							Yes
0078	Etalon Cal	14:03	159.8			HPF	cal							Yes
0079	Etalon Cal	14:06	159.8			HPF	cal							Yes
0080	Etalon Cal	14:09	159.8			HPF	cal							Yes
0081	Etalon Cal	14:12	159.8			HPF	cal							Yes
0082	UNe Slave Cal	14:16	426			HPF	cal							Yes
0083	UNe Slave Cal	14:23	426			HPF	cal							Yes
0084	UNe Slave Cal	14:31	426			HPF	cal							Yes
0085	UNe Slave Cal	14:39	426			HPF	cal							Yes
0086	UNe Slave Cal	14:47	426			HPF	cal							Yes
0087	UNe Slave Cal	14:55	426			HPF	cal							Yes
0071	LFC Cal	22:21	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:32	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:33	20			VIRUS	cal							Yes
virus0009901_01	bias	22:34	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:35	20			LRS2	cal							Yes
virus0009902_01	dark	22:36	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:37	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:39	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:40	15			LRS2	cal							Yes
0072	Dark	22:43	319.5			HPF	cal							Yes
0073	Quartz FCU	22:49	74.5			HPF	cal							Yes
0074	Quartz FCU	22:51	74.5			HPF	cal							Yes
0075	Quartz FCU	22:53	74.5			HPF	cal							Yes
0076	Quartz FCU	22:54	74.5			HPF	cal							Yes
0077	Quartz FCU	22:56	74.5			HPF	cal							Yes
0078	Quartz FCU	22:58	74.5			HPF	cal							Yes
0079	Quartz FCU	23:00	74.5			HPF	cal							Yes
0080	Alpha Bright Cal	23:02	85.2			HPF	cal							Yes
0081	Alpha Bright Cal	23:04	85.2			HPF	cal							Yes
0082	Alpha Bright Cal	23:06	85.2			HPF	cal							Yes
0083	Alpha Bright Cal	23:08	85.2			HPF	cal							Yes
0084	LFC FCU	23:11	106.5			HPF	cal							Yes
0085	LFC FCU	23:13	106.5			HPF	cal							Yes
0086	LFC Cal	23:16	106.5			HPF	cal							Yes
0087	LFC Cal	23:18	106.5			HPF	cal							Yes
0088	Etalon Cal	23:21	159.8			HPF	cal							Yes
0089	UNe Slave Cal	23:25	426			HPF	cal							Yes
lrs20000012_01	flat_Qth_R	23:26	15			LRS2	cal							Yes
lrs20000012_02	flat_Qth_R	23:27	15			LRS2	cal							Yes
lrs20000012_03	flat_Qth_R	23:29	15			LRS2	cal							Yes
lrs20000012_04	flat_Qth_R	23:30	15			LRS2	cal							Yes
lrs20000012_05	flat_Qth_R	23:31	15			LRS2	cal							Yes
0090	UNe Slave Cal	23:32	426			HPF	cal							Yes
lrs20000013_01	flat_ldls_long_B	23:32	20			LRS2	cal							Yes
lrs20000013_02	flat_ldls_long_B	23:34	20			LRS2	cal							Yes
lrs20000013_03	flat_ldls_long_B	23:35	20			LRS2	cal							Yes
lrs20000014_01	Cd-A_B	23:36	29			LRS2	cal							Yes
lrs20000014_02	Cd-A_B	23:38	29			LRS2	cal							Yes
lrs20000014_03	Cd-A_B	23:39	29			LRS2	cal							Yes
0091	UNe Slave Cal	23:40	426			HPF	cal							Yes
lrs20000015_01	FeAr_R	23:41	15			LRS2	cal							Yes
lrs20000015_02	FeAr_R	23:42	15			LRS2	cal							Yes
lrs20000015_03	FeAr_R	23:43	15			LRS2	cal							Yes
lrs20000016_01	Hg_R	23:44	20			LRS2	cal							Yes
lrs20000016_02	Hg_R	23:46	20			LRS2	cal							Yes
lrs20000016_03	Hg_R	23:47	20			LRS2	cal							Yes
0092	UNe Slave Cal	23:48	426			HPF	cal							Yes
lrs20000017_01	Hg_B	23:48	15			LRS2	cal							Yes
lrs20000017_02	Hg_B	23:49	15			LRS2	cal							Yes
lrs20000017_03	Hg_B	23:51	15			LRS2	cal							Yes
0093	UNe Slave Cal	23:56	426			HPF	cal							Yes
virus0000026_01	flat_ldls_long	23:57	15			VIRUS	cal							Yes
virus0000026_02	flat_ldls_long	23:59	15			VIRUS	cal							Yes