HET Night Report Reader

Civil Date	Ephemerides
2026-01-30	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:38	01:24	01:53	12:25	12:53	13:41	-	12:55
Night Length	10:32		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin / Jose Fernandez	Amy Westfall

Overlaps
TO Overlap	RA Overlap
Cassie Crowe	-

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
22:38	7.5	8.9	23:00	engineering	00:22
00:31	5.2	9.6	12:58	twilight	12:27
Total Time Open					12:49

Program	Night Priority	Science
01:53	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:05	01:48	0.89	1.33	-40	+1171	4.1	6.3	7.0	120	5	First of Night
↪ Comments			Dome seeing very poor due to large temperature differential
04:20	04:56	0.49	0.78	-30	+2424	1.8	2.3	2.5	219	8	Stack/Re-stack
12:51	12:57	0.69	1.11	5	+2424	4.2	4.5	4.4	351	4	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6554	09:56-10:01	00:05	Had to restart pas server due to "Non-reentrant handler HPF_ACQ_SetExposureTime is busy."

TO Comments	Clear and calm with steep temperature drop at beginning of night, contributing to poor dome seeing.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000014_01	FeAr_R	00:01	15			LRS2	cal							Yes
lrs20000014_02	FeAr_R	00:02	15			LRS2	cal							Yes
lrs20000014_03	FeAr_R	00:03	15			LRS2	cal							Yes
lrs20000015_01	Hg_R	00:04	20			LRS2	cal							Yes
lrs20000015_02	Hg_R	00:06	20			LRS2	cal							Yes
lrs20000015_03	Hg_R	00:07	20			LRS2	cal							Yes
lrs20000016_01	Hg_B	00:08	15			LRS2	cal							Yes
lrs20000016_02	Hg_B	00:09	15			LRS2	cal							Yes
lrs20000016_03	Hg_B	00:11	15			LRS2	cal							Yes
lrs20000001_01	bias	00:12	0			LRS2	cal							Yes
virus0000001_01	bias	00:12	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:13	0			LRS2	cal							Yes
virus0000001_02	bias	00:13	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:14	0			LRS2	cal							Yes
virus0000001_03	bias	00:14	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:15	0			LRS2	cal							Yes
virus0000001_04	bias	00:15	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:15	0			LRS2	cal							Yes
virus0000001_05	bias	00:16	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:16	0			LRS2	cal							Yes
virus0000001_06	bias	00:17	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:17	0			LRS2	cal							Yes
virus0000001_07	bias	00:17	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:18	0			LRS2	cal							Yes
virus0000001_08	bias	00:18	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:19	0			LRS2	cal							Yes
virus0000001_09	bias	00:19	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:20	0			LRS2	cal							Yes
virus0000001_10	bias	00:20	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:21	0			LRS2	cal							Yes
virus0000001_11	bias	00:21	0			VIRUS	cal							Yes
0001	twilight	00:35	298.2			HPF	cal					486		Yes
lrs20000002_01	skyflat	00:42	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:43	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:45	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:46	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:47	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:48	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:51	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:52	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:54	14			VIRUS	cal							Yes
virus0000005_01	skyflat	00:55	18			VIRUS	cal							Yes
virus0000006_01	skyflat	00:57	26			VIRUS	cal							Yes
0002	UNe Slave Cal	01:02	426			HPF	cal							Yes
virus0000007_01	flat_ldls_long	01:07	15			VIRUS	cal							Yes
virus0000007_02	flat_ldls_long	01:08	15			VIRUS	cal							Yes
0003	UNe Slave Cal	01:10	426			HPF	cal							Yes
virus0000007_03	flat_ldls_long	01:10	15			VIRUS	cal							Yes
virus0000008_01	Cd-A	01:11	15			VIRUS	cal							Yes
virus0000008_02	Cd-A	01:13	15			VIRUS	cal							Yes
virus0000008_03	Cd-A	01:14	15			VIRUS	cal							Yes
virus0000009_01	Hg	01:15	15			VIRUS	cal							Yes
0004	UNe Slave Cal	01:17	426			HPF	cal							Yes
virus0000009_02	Hg	01:17	15			VIRUS	cal							Yes
virus0000009_03	Hg	01:18	15			VIRUS	cal							Yes
lrs20000008_01	dark	01:20	360			LRS2	cal							Yes
virus0000010_01	dark	01:21	360			VIRUS	cal							Yes
0005	UNe Slave Cal	01:25	426			HPF	cal							Yes
lrs20000008_02	dark	01:27	360			LRS2	cal							Yes
virus0000010_02	dark	01:27	360			VIRUS	cal							Yes
0006	UNe Slave Cal	01:33	426			HPF	cal							Yes
lrs20000008_03	dark	01:34	360			LRS2	cal							Yes
virus0000010_03	dark	01:34	360			VIRUS	cal							Yes
0007	UNe Slave Cal	01:41	426			HPF	cal							Yes
0008	QID 1855	01:56	969.1	6.8	PSU26-1-007	HPF	sci	2.07	1.12	18.94	0.95	30		P4
virus0000011_01	parallel	01:56	1023			VIRUS	sci							Yes
0009	LFC Cal	02:14	106.5			HPF	cal							Yes
0010	QID 1948	02:19	969.1	6.8	UT26-1-010	HPF	sci	2.07	1.06	18.90	0.90	55		Yes
virus0000012_01	parallel	02:19	2047			VIRUS	sci							Yes
0011	QID 1948	02:36	969.1	1.8	UT26-1-010	HPF	sci	2.02	1.09	18.83	0.93	56		Yes
0012	LFC Cal	02:54	106.5			HPF	cal							Yes
0013	LFC Cal	03:00	106.5			HPF	cal							Yes
virus0000013_01	parallel	03:00	1800			VIRUS	sci							Yes
lrs20000009_01	QID 2529	03:00	1800	7.0	UT26-1-004	LRS2-B	sci	1.95	0.98	18.31	0.83			Yes
0014	LFC Cal	03:02	106.5			HPF	cal							Yes
0015	LFC Cal	03:05	106.5			HPF	cal							Yes
0016	QID 1964	03:46	969.1	15.8	UT26-1-010	HPF	sci	2.14	1.25	18.78	0.95	56		Yes
virus0000014_01	parallel	03:46	2047			VIRUS	sci							Yes
0017	QID 1964	04:03	969.1	1.8	UT26-1-010	HPF	sci	2.19	1.14	18.86	0.94	60		Yes
0018	LFC Cal	04:21	106.5			HPF	cal							Yes
0019	LFC Cal	04:29	106.5			HPF	cal							Yes
0020	LFC Cal	04:31	106.5			HPF	cal							Yes
0021	LFC Cal	04:34	106.5			HPF	cal							Yes
0022	LFC Cal	04:57	106.5			HPF	cal							Yes
0023	QID 429	05:01	915.9	4.7	G26-1-002	HPF	sci	1.62	1.36	18.18	0.81	79		Yes
virus0000015_01	parallel	05:01	1959			VIRUS	sci							Yes
0024	QID 429	05:17	915.9	1.7	G26-1-002	HPF	sci	1.64	1.14	18.47	0.88	94		Yes
0025	LFC Cal	05:34	106.5			HPF	cal							Yes
0026	QID 1459	05:41	969.1	7.8	UT26-1-010	HPF	sci	1.60	1.21	18.48	1.01	393		P4
virus0000016_01	parallel	05:41	2047			VIRUS	sci							Yes
0027	QID 1459	05:58	969.1	0.8	UT26-1-010	HPF	sci	1.74	1.54	18.49	0.99	408		P4
0028	LFC Cal	06:16	106.5			HPF	cal							Yes
lrs20000010_01	BD+292091_056_E	06:21	60	7.0		LRS2	spec	1.83	1.22	18.51	0.70			Yes
lrs20000011_01	BD+292091_066_E	06:25	60	3.0		LRS2	spec	1.52	1.21	18.60	0.82			Yes
virus0000017_01	parallel	06:30	2047			VIRUS	sci							Yes
0029	QID 1937	06:31	969.1	4.8	UT26-1-003	HPF	sci	1.49	0.95	18.41	0.70	31		Yes
0030	QID 1937	06:48	969.1	0.8	UT26-1-003	HPF	sci	1.59	1.08	18.92	0.80	34		Yes
0031	QID 1458	07:11	649.6	7.2	UT26-1-010	HPF	sci	1.47	1.03	18.84	0.91	418		P4
virus0000018_01	parallel	07:11	2083			VIRUS	sci							Yes
0032	QID 1458	07:23	649.6	1.2	UT26-1-010	HPF	sci	1.48	1.07	18.79	0.91	360		P4
0033	QID 1458	07:35	649.6	0.2	UT26-1-010	HPF	sci	1.65	1.25	18.52	1.02	277		P4
0034	LFC Cal	07:47	106.5			HPF	cal							Yes
0035	QID 1841	07:52	32	7.5	PSU26-1-011	HPF	sci	1.68	1.16	18.64	0.73	473		P4
0036	LFC Cal	08:00	106.5			HPF	cal							Yes
virus0000019_01	parallel	08:00	600			VIRUS	sci							Yes
lrs20000012_01	QID 2514	08:00	600	7.0	UT26-1-002	LRS2-R	sci	1.46	0.88	18.59	0.97			Yes
0037	LFC Cal	08:02	106.5			HPF	cal							Yes
0038	LFC Cal	08:04	106.5			HPF	cal							Yes
0039	LFC Cal	08:15	106.5			HPF	cal							Yes
virus0000020_01	parallel	08:15	600			VIRUS	sci							Yes
lrs20000013_01	QID 2513	08:15	600	5.0	UT26-1-002	LRS2-B	sci	1.50	0.80	18.75	0.85			Yes
0040	LFC Cal	08:17	106.5			HPF	cal							Yes
0041	LFC Cal	08:19	106.5			HPF	cal							Yes
virus0000021_01	parallel	08:31	1023			VIRUS	sci							Yes
0042	QID 1785	08:32	969.1	6.8	UT26-1-014	HPF	sci	1.51	0.85	18.75	0.73	412		P4
0043	LFC Cal	08:50	106.5			HPF	cal							Yes
virus0000022_01	parallel	08:53	1849			VIRUS	sci							Yes
0044	QID 1603	08:54	862.6	5.6	UT26-1-005	HPF	sci	1.48	0.87	18.50	1.06	84		Yes
0045	QID 1603	09:09	862.6	0.6	UT26-1-005	HPF	sci	1.38	0.84	19.08	1.10	99		Yes
virus0000023_01	parallel	09:39	748			VIRUS	sci							Yes
0046	QID 1604	09:40	692.3	16.5	UT26-1-005	HPF	sci	1.43		19.00	1.38	70	hard to setup on such a rowded field. We used HPF direct setupmethod	Yes
0047	QID 2525	10:00	308.9	8.9	UT26-1-007	HPF	sci	1.42		19.18	0.66	236		Yes
virus0000024_01	parallel	10:00	1060			VIRUS	sci							Yes
0048	QID 2525	10:06	308.9	0.9	UT26-1-007	HPF	sci	1.42		19.18	0.67	223		Yes
0049	QID 2525	10:12	308.9	0.9	UT26-1-007	HPF	sci	1.34		19.19	0.69	222		Yes
0050	QID 1820	10:24	969.1	6.8	UT26-1-014	HPF	sci	1.46	0.81	18.10	1.00	346		P4
virus0000025_01	parallel	10:24	1023			VIRUS	sci							Yes
0051	LFC Cal	10:42	106.5			HPF	cal							Yes
virus0000026_01	parallel	10:46	2047			VIRUS	sci							Yes
0052	QID 21	10:47	969.1	6.8	UT26-1-003	HPF	sci	1.43	0.69	19.06	0.95	48		Yes
0053	QID 21	11:04	969.1	0.8	UT26-1-003	HPF	sci	1.41	0.77	19.21	0.97	48		Yes
0054	QID 1971	11:28	969.1	7.8	UT26-1-003	HPF	sci	1.35	0.76	19.08	0.88	48		Yes
virus0000027_01	parallel	11:28	2047			VIRUS	sci							Yes
0055	QID 1971	11:45	969.1	0.8	UT26-1-003	HPF	sci	1.35	0.81	19.27	0.89	51		Yes
0056	QID 1839	12:09	32	8.5	PSU26-1-011	HPF	sci	1.56	0.92	19.21	0.94	527		P4
0057	QID 1809	12:16	969.1	5.8	UT26-1-014	HPF	sci	1.42	0.92	19.28	0.65	384		Yes
virus0000028_01	parallel	12:16	1023			VIRUS	sci							Yes
0058	LFC Cal	12:34	106.5			HPF	cal							Yes
0059	QID 1745	12:40	42.6	7.3	UT26-1-014	HPF	sci	1.36	1.02	19.02	0.85	671		Yes
0060	LFC Cal	12:41	106.5			HPF	cal							Yes
0061	HR4828_tell_std	12:48	117.2	7.0		HPF	telluric	1.57	1.05	18.74	0.94			Yes
lrs20000014_01	bias	12:52	0			LRS2	cal							Yes
virus0000029_01	bias	12:52	0			VIRUS	cal							Yes
virus0000030_01	Cd-A	12:55	15		ENG26-1-002	VIRUS	cal							Yes
virus0000031_01	Hg	12:56	15		ENG26-1-002	VIRUS	cal							Yes
0062	Dark	13:06	319.5			HPF	cal							Yes
0063	Quartz FCU	13:17	74.5			HPF	cal							Yes
0064	Quartz FCU	13:19	74.5			HPF	cal							Yes
0065	Quartz FCU	13:21	74.5			HPF	cal							Yes
0066	Quartz FCU	13:23	74.5			HPF	cal							Yes
0067	Quartz FCU	13:24	74.5			HPF	cal							Yes
0068	Quartz FCU	13:26	74.5			HPF	cal							Yes
0069	Quartz FCU	13:28	74.5			HPF	cal							Yes
0070	Alpha Bright Cal	13:30	85.2			HPF	cal							Yes
0071	Alpha Bright Cal	13:32	85.2			HPF	cal							Yes
0072	Alpha Bright Cal	13:34	85.2			HPF	cal							Yes
0073	Alpha Bright Cal	13:36	85.2			HPF	cal							Yes
0074	LFC FCU	13:39	106.5			HPF	cal							Yes
0075	LFC FCU	13:41	106.5			HPF	cal							Yes
0076	LFC FCU	13:43	106.5			HPF	cal							Yes
0077	LFC FCU	13:46	106.5			HPF	cal							Yes
0078	LFC FCU	13:48	106.5			HPF	cal							Yes
0079	LFC FCU	13:50	106.5			HPF	cal							Yes
0080	LFC Cal	13:53	106.5			HPF	cal							Yes
0081	LFC Cal	13:56	106.5			HPF	cal							Yes
0082	Etalon Cal	14:03	159.8			HPF	cal							Yes
0083	Etalon Cal	14:07	159.8			HPF	cal							Yes
0084	Etalon Cal	14:10	159.8			HPF	cal							Yes
0085	Etalon Cal	14:13	159.8			HPF	cal							Yes
0086	UNe Slave Cal	14:17	426			HPF	cal							Yes
0087	UNe Slave Cal	14:24	426			HPF	cal							Yes
0088	UNe Slave Cal	14:32	426			HPF	cal							Yes
0089	UNe Slave Cal	14:40	426			HPF	cal							Yes
0090	UNe Slave Cal	14:48	426			HPF	cal							Yes
0091	UNe Slave Cal	14:55	426			HPF	cal							Yes
0049	LFC Cal	22:14	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:26	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:26	20			VIRUS	cal							Yes
virus0009901_01	bias	22:28	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:29	20			LRS2	cal							Yes
virus0009902_01	dark	22:30	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:31	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:32	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:34	15			LRS2	cal							Yes
0050	Dark	23:04	319.5			HPF	cal							Yes
0051	Quartz FCU	23:11	74.5			HPF	cal							Yes
0052	Quartz FCU	23:13	74.5			HPF	cal							Yes
0053	Quartz FCU	23:14	74.5			HPF	cal							Yes
0054	Quartz FCU	23:16	74.5			HPF	cal							Yes
0055	Quartz FCU	23:18	74.5			HPF	cal							Yes
0056	Quartz FCU	23:20	74.5			HPF	cal							Yes
0057	Quartz FCU	23:21	74.5			HPF	cal							Yes
0058	Alpha Bright Cal	23:24	85.2			HPF	cal							Yes
0059	Alpha Bright Cal	23:26	85.2			HPF	cal							Yes
0060	Alpha Bright Cal	23:28	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	23:30	85.2			HPF	cal							Yes
0062	LFC FCU	23:32	106.5			HPF	cal							Yes
0063	LFC FCU	23:35	106.5			HPF	cal							Yes
0064	LFC Cal	23:37	106.5			HPF	cal							Yes
0065	LFC Cal	23:40	106.5			HPF	cal							Yes
0066	Etalon Cal	23:42	159.8			HPF	cal							Yes
lrs20000011_01	flat_Qth_R	23:46	15			LRS2	cal							Yes
lrs20000011_02	flat_Qth_R	23:47	15			LRS2	cal							Yes
lrs20000011_03	flat_Qth_R	23:49	15			LRS2	cal							Yes
lrs20000011_04	flat_Qth_R	23:50	15			LRS2	cal							Yes
lrs20000011_05	flat_Qth_R	23:51	15			LRS2	cal							Yes
lrs20000012_01	flat_ldls_long_B	23:52	20			LRS2	cal							Yes
lrs20000012_02	flat_ldls_long_B	23:54	20			LRS2	cal							Yes
lrs20000012_03	flat_ldls_long_B	23:55	20			LRS2	cal							Yes
lrs20000013_01	Cd-A_B	23:56	29			LRS2	cal							Yes
lrs20000013_02	Cd-A_B	23:58	29			LRS2	cal							Yes
lrs20000013_03	Cd-A_B	23:59	29			LRS2	cal							Yes