HET Night Report Reader

Civil Date	Ephemerides
2025-12-27	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:10	00:59	01:28	12:26	12:55	13:45	-	07:26
Night Length	10:58		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:08	16.4	15.1	13:01	twilight	12:53
Total Time Open					12:53

Program	Night Priority	Science
01:28	Science
08:33	Idle due to weather (Clouds, low transparency)
09:10	Science
09:18	Idle due to weather (Poor IQ)
09:34	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
00:34	01:02	0.42	0.66	-20	-2986	15.9	15.6	15.4	256	7	First of Night
04:12	04:33	0.38	0.60	-35	-1255	11.0	11.5	11.7	293	18	Stack/Re-stack
12:51	12:57	0.49	0.76	15	-616	11.0	11.5	11.6	281	10	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6085	07:09-07:10	00:01	WFS1 arm encoder alarm during grid search.
6554	09:35-09:40	00:05	HPF ACQ stopped updating.

TO Comments	Some clouds at start of night. Clear for rest.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000001_01	skyflat	00:15	7			LRS2	cal							Yes
lrs20000002_01	skyflat	00:16	10			LRS2	cal							Yes
lrs20000003_01	skyflat	00:17	13			LRS2	cal							Yes
lrs20000004_01	skyflat	00:18	16			LRS2	cal							Yes
lrs20000005_01	skyflat	00:19	22			LRS2	cal							Yes
lrs20000006_01	skyflat	00:21	30			LRS2	cal							Yes
virus0000001_01	skyflat	00:24	7			VIRUS	cal							Yes
virus0000002_01	skyflat	00:25	10			VIRUS	cal							Yes
virus0000003_01	skyflat	00:26	14			VIRUS	cal							Yes
virus0000004_01	skyflat	00:28	18			VIRUS	cal							Yes
virus0000005_01	skyflat	00:29	26			VIRUS	cal							Yes
lrs20000007_01	bias	00:32	0			LRS2	cal							Yes
virus0000006_01	bias	00:32	0			VIRUS	cal							Yes
lrs20000007_02	bias	00:33	0			LRS2	cal							Yes
virus0000006_02	bias	00:33	0			VIRUS	cal							Yes
lrs20000007_03	bias	00:33	0			LRS2	cal							Yes
virus0000006_03	bias	00:34	0			VIRUS	cal							Yes
lrs20000007_04	bias	00:34	0			LRS2	cal							Yes
virus0000006_04	bias	00:34	0			VIRUS	cal							Yes
lrs20000007_05	bias	00:35	0			LRS2	cal							Yes
virus0000006_05	bias	00:35	0			VIRUS	cal							Yes
lrs20000007_06	bias	00:36	0			LRS2	cal							Yes
virus0000006_06	bias	00:36	0			VIRUS	cal							Yes
lrs20000007_07	bias	00:37	0			LRS2	cal							Yes
virus0000006_07	bias	00:37	0			VIRUS	cal							Yes
lrs20000007_08	bias	00:38	0			LRS2	cal							Yes
virus0000006_08	bias	00:38	0			VIRUS	cal							Yes
lrs20000007_09	bias	00:39	0			LRS2	cal							Yes
virus0000006_09	bias	00:39	0			VIRUS	cal							Yes
lrs20000007_10	bias	00:39	0			LRS2	cal							Yes
virus0000006_10	bias	00:40	0			VIRUS	cal							Yes
lrs20000007_11	bias	00:40	0			LRS2	cal							Yes
virus0000006_11	bias	00:41	0			VIRUS	cal							Yes
0001	LFC Cal	01:29	106.5			HPF	cal							Yes
0002	QID 1592	01:31	617.7	7.7	UT26-1-007	HPF	sci	1.71	1.09	19.79	0.63	38	Reached end of track again on final exposure of IRAS04125B with about 25-seconds left.	No
virus0000007_01	parallel	01:31	1984			VIRUS	sci							Yes
0003	QID 1592	01:43	617.7	0.7	UT26-1-007	HPF	sci	1.95	1.08	19.67	0.69	44		No
0004	QID 1592	01:54	617.7	0.7	UT26-1-007	HPF	sci	1.91	0.97	19.67	0.70	51		No
0005	LFC Cal	02:06	106.5			HPF	cal							Yes
0006	QID 1593	02:08	617.7	4.7	UT26-1-007	HPF	sci	1.65	0.86	19.68	0.78	61	Ran out of track on last exposure. Also might have centered on the wrong star given the high measured S/N.	No
virus0000008_01	parallel	02:08	1984			VIRUS	sci							Yes
0007	QID 1593	02:20	617.7	0.7	UT26-1-007	HPF	sci	1.61	0.91	19.56	0.86	59		No
0008	QID 1593	02:31	617.7	0.7	UT26-1-007	HPF	sci	1.61	0.84	19.43	0.93			No
0009	LFC Cal	02:42	106.5			HPF	cal							Yes
0010	QID 1314	02:48	330.2	7.5	PSU26-1-023	HPF	sci	1.59	0.74	19.62	1.00	324		Yes
virus0000009_01	parallel	02:48	2203			VIRUS	sci							Yes
0011	QID 1314	02:54	330.2	0.5	PSU26-1-023	HPF	sci	1.56	0.94	19.59	0.99	326		Yes
0012	QID 1314	03:00	330.2	0.5	PSU26-1-023	HPF	sci	1.51	0.81	19.55	0.99	329		Yes
0013	QID 1314	03:07	330.2	0.5	PSU26-1-023	HPF	sci	1.69	0.92	19.51	0.98	298		Yes
0014	QID 1314	03:13	330.2	0.5	PSU26-1-023	HPF	sci	1.80	1.10	19.48	0.97	258		Yes
0015	QID 1314	03:19	330.2	0.5	PSU26-1-023	HPF	sci	1.69	0.84	19.47	0.95	266		Yes
0016	LFC Cal	03:26	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:31	319			VIRUS	sci							Yes
0017	QID 1755	03:32	276.9	7.4	UT26-1-014	HPF	sci	1.96	0.98	19.71	0.83	398		Yes
0018	LFC Cal	03:37	106.5			HPF	cal							Yes
virus0000011_01	GD71_052_E	03:43	60	7.0		VIRUS	spec	1.88	0.93	19.94	0.94			Yes
virus0000011_02	GD71_052_E	03:45	60	1.0		VIRUS	spec	1.93	1.00	19.97	0.93			Yes
virus0000011_03	GD71_052_E	03:47	60	1.0		VIRUS	spec	1.78	0.90	19.99	0.90			Yes
0019	QID 1797	03:54	969.1	6.8	UT26-1-014	HPF	sci	2.05	1.03	19.69	0.89	353		Yes
virus0000012_01	parallel	03:54	1023			VIRUS	sci							Yes
0020	LFC Cal	04:12	106.5			HPF	cal							Yes
virus0000013_01	parallel	04:38	2083			VIRUS	sci							Yes
0021	QID 1309	04:39	649.6	6.2	PSU26-1-023	HPF	sci	1.46	1.01	19.27	0.94	378		Yes
0022	QID 1309	04:50	649.6	0.2	PSU26-1-023	HPF	sci	1.47	1.08	19.31	0.94	402		Yes
0023	QID 1309	05:02	649.6	1.2	PSU26-1-023	HPF	sci	1.57	1.17	19.08	0.91	337		Yes
0024	LFC Cal	05:14	106.5			HPF	cal							Yes
0025	LFC Cal	05:19	106.5			HPF	cal							Yes
virus0000014_01	parallel	05:19	2000			VIRUS	sci							Yes
lrs20000008_01	QID 1830	05:19	2000	5.7	UT26-1-002	LRS2-B	sci	1.93	1.27	20.42	0.63			Yes
0026	LFC Cal	05:22	106.5			HPF	cal							Yes
0027	LFC Cal	05:24	106.5			HPF	cal							Yes
virus0000015_01	parallel	05:58	2047			VIRUS	sci							Yes
0028	QID 1318	05:59	969.1	6.8	PSU26-1-023	HPF	sci	1.88	1.24	19.41	0.91	59		Yes
0029	QID 1318	06:16	969.1	0.8	PSU26-1-023	HPF	sci	2.55	2.26	19.48	0.92	49		Yes
0030	LFC Cal	06:34	106.5			HPF	cal							Yes
lrs20000009_01	BD+541216_056_E	06:38	60	6.0		LRS2	spec	3.11	2.23	20.71	0.77			Yes
lrs20000010_01	BD+541216_066_E	06:43	30	3.5		LRS2	spec	2.83	2.25	19.67	0.59			Yes
0031	LFC Cal	06:48	106.5			HPF	cal							Yes
virus0000016_01	parallel	06:48	300			VIRUS	sci							Yes
lrs20000011_01	QID 48	06:48	300	5.0	PSU26-1-003	LRS2-R	sci	2.90	2.23	19.89	0.82		Sky brightness brighter than 20 mag. Please check data quality and reject if needed.	P4
0032	LFC Cal	06:51	106.5			HPF	cal							Yes
0033	LFC Cal	06:58	106.5			HPF	cal							Yes
virus0000017_01	parallel	06:58	2400			VIRUS	sci							Yes
lrs20000012_01	QID 84	06:58	2400	5.0	PSU26-1-013	LRS2-B	sci	2.52	2.03	20.96	0.77			P4
0034	LFC Cal	07:00	106.5			HPF	cal							Yes
0035	LFC Cal	07:02	106.5			HPF	cal							Yes
virus0000018_01	parallel	07:42	300			VIRUS	sci							Yes
0036	LFC Cal	07:43	106.5			HPF	cal							Yes
lrs20000013_01	QID 49	07:43	300	5.0	PSU26-1-003	LRS2-R	sci	2.55	1.99	20.88	0.93			P4
0037	LFC Cal	07:45	106.5			HPF	cal							Yes
virus0000019_01	parallel	07:52	2400			VIRUS	sci							Yes
0038	LFC Cal	07:53	106.5			HPF	cal							Yes
lrs20000014_01	QID 1734	07:53	2400	5.0	PSU26-1-018	LRS2-B	sci	2.19	1.69	21.69	0.84			Yes
0039	LFC Cal	07:55	106.5			HPF	cal							Yes
0040	LFC Cal	07:57	106.5			HPF	cal							Yes
lrs20000015_01	parallel	08:37	600			LRS2	sci							Yes
virus0000020_01	QID 493	08:37	600	4.0	UT26-1-018	VIRUS	sci	1.99	1.42	21.65	0.55		Clouds, low transparency during second exposure.	No
0041	LFC Cal	08:38	106.5			HPF	cal							Yes
0042	LFC Cal	08:40	106.5			HPF	cal							Yes
0043	LFC Cal	08:42	106.5			HPF	cal							Yes
lrs20000015_02	parallel	08:48	600			LRS2	sci							Yes
virus0000020_02	QID 493	08:48	600	1.0	UT26-1-018	VIRUS	sci	1.97	1.46	21.54	0.36			No
lrs20000015_03	parallel	09:00	600			LRS2	sci							Yes
virus0000020_03	QID 493	09:00	600	2.0	UT26-1-018	VIRUS	sci	2.22	1.44	21.71	0.80			No
0044	HR4227_tell_std	09:16	117.2	6.0		HPF	telluric	2.29	1.73	19.80	0.82			Yes
virus0000021_01	parallel	09:23	360			VIRUS	sci							Yes
lrs20000016_01	QID 1579	09:23	360	5.0	PSU26-1-012	LRS2-B	sci	2.76	1.77	21.67	0.83		Poor image quality, seeing degraded.	No
0045	LFC Cal	09:24	106.5			HPF	cal							Yes
0046	LFC Cal	09:26	106.5			HPF	cal							Yes
0047	QID 1311	09:45	969.1	5.8	PSU26-1-023	HPF	sci	2.21	1.94	20.00		146		Yes
virus0000022_01	parallel	09:45	2047			VIRUS	sci							Yes
0048	QID 1311	10:03	969.1	0.8	PSU26-1-023	HPF	sci	2.23	2.20	20.06		121		Yes
0049	LFC Cal	10:20	106.5			HPF	cal							Yes
0050	QID 1776	10:26	969.1	6.8	UT26-1-014	HPF	sci	2.07	1.77	20.07	0.85	421		Yes
virus0000023_01	parallel	10:26	1023			VIRUS	sci							Yes
0051	LFC Cal	10:44	106.5			HPF	cal							Yes
0052	QID 1769	10:49	841.4	7.0	UT26-1-014	HPF	sci	1.94	1.97	20.22	0.82	431		Yes
virus0000024_01	parallel	10:49	891			VIRUS	sci							Yes
0053	LFC Cal	11:05	106.5			HPF	cal							Yes
lrs20000017_01	parallel	11:07	360			LRS2	sci							Yes
0054	LFC Cal	11:08	106.5			HPF	cal							Yes
virus0000025_01	QID 1558	11:08	360	5.0	UT26-1-008	VIRUS	sci	2.47	1.66	21.77	0.86		Seeing momentarily blew up during first exposure. Please check data quality and reject if needed.	Yes
0055	LFC Cal	11:10	106.5			HPF	cal							Yes
lrs20000017_02	parallel	11:15	360			LRS2	sci							Yes
virus0000025_02	QID 1558	11:15	360	1.0	UT26-1-008	VIRUS	sci	2.09	2.44	21.76	0.87			Yes
lrs20000017_03	parallel	11:22	360			LRS2	sci							Yes
virus0000025_03	QID 1558	11:22	360	1.0	UT26-1-008	VIRUS	sci	1.89	1.15	21.76	0.87			Yes
0056	LFC Cal	11:34	106.5			HPF	cal							Yes
lrs20000018_01	parallel	11:34	600			LRS2	sci							Yes
virus0000026_01	QID 509	11:34	600	6.0	UT26-1-018	VIRUS	sci	1.69	1.01	21.83	0.87			Yes
0057	LFC Cal	11:36	106.5			HPF	cal							Yes
0058	LFC Cal	11:39	106.5			HPF	cal							Yes
lrs20000018_02	parallel	11:45	600			LRS2	sci							Yes
virus0000026_02	QID 509	11:45	600	1.0	UT26-1-018	VIRUS	sci	1.71	1.05	21.77	0.93			Yes
lrs20000018_03	parallel	11:56	600			LRS2	sci							Yes
virus0000026_03	QID 509	11:56	600	1.0	UT26-1-018	VIRUS	sci	1.70	1.26	21.75	0.89			Yes
0059	LFC Cal	12:12	106.5			HPF	cal							Yes
virus0000027_01	parallel	12:12	540			VIRUS	sci							Yes
lrs20000019_01	QID 1743	12:12	540	6.0	PSU26-1-025	LRS2-B	sci	2.00	1.21	22.28	0.71			Yes
0060	LFC Cal	12:14	106.5			HPF	cal							Yes
0061	LFC Cal	12:17	106.5			HPF	cal							Yes
0062	LFC Cal	12:24	106.5			HPF	cal							Yes
virus0000028_01	parallel	12:24	540			VIRUS	sci							Yes
lrs20000020_01	QID 1744	12:24	540	3.0	PSU26-1-025	LRS2-R	sci	1.82	1.37	21.17	0.74			Yes
0063	LFC Cal	12:27	106.5			HPF	cal							Yes
0064	LFC Cal	12:29	106.5			HPF	cal							Yes
virus0000029_01	parallel	12:37	360			VIRUS	sci							Yes
0065	LFC Cal	12:38	106.5			HPF	cal							Yes
lrs20000021_01	QID 1643	12:38	360	5.0	UT26-1-016	LRS2-R	sci	1.89	1.21	20.57	0.89			P4
0066	LFC Cal	12:40	106.5			HPF	cal							Yes
lrs20000022_01	QID 1644	12:47	180	3.0	UT26-1-016	LRS2-B	sci	1.96	1.52	20.16	0.84			P4
0067	LFC Cal	12:48	106.5			HPF	cal							Yes
lrs20000023_01	bias	12:52	0			LRS2	cal							Yes
virus0000030_01	bias	12:53	0			VIRUS	cal							Yes
virus0000031_01	Cd-A	12:57	15		ENG26-1-002	VIRUS	cal							Yes
virus0000032_01	Hg	12:59	15		ENG26-1-002	VIRUS	cal							Yes
0068	Dark	13:07	319.5			HPF	cal							Yes
0069	Quartz FCU	13:19	74.5			HPF	cal							Yes
0070	Quartz FCU	13:21	74.5			HPF	cal							Yes
0071	Quartz FCU	13:22	74.5			HPF	cal							Yes
0072	Quartz FCU	13:24	74.5			HPF	cal							Yes
0073	Quartz FCU	13:26	74.5			HPF	cal							Yes
0074	Quartz FCU	13:28	74.5			HPF	cal							Yes
0075	Quartz FCU	13:29	74.5			HPF	cal							Yes
0076	Alpha Bright Cal	13:32	85.2			HPF	cal							Yes
0077	Alpha Bright Cal	13:34	85.2			HPF	cal							Yes
0078	Alpha Bright Cal	13:36	85.2			HPF	cal							Yes
0079	Alpha Bright Cal	13:38	85.2			HPF	cal							Yes
0080	LFC FCU	13:41	106.5			HPF	cal							Yes
0081	LFC FCU	13:43	106.5			HPF	cal							Yes
0082	LFC FCU	13:45	106.5			HPF	cal							Yes
0083	LFC FCU	13:48	106.5			HPF	cal							Yes
0084	LFC FCU	13:50	106.5			HPF	cal							Yes
0085	LFC FCU	13:52	106.5			HPF	cal							Yes
0086	LFC Cal	13:55	106.5			HPF	cal							Yes
0087	LFC Cal	13:58	106.5			HPF	cal							Yes
0088	Etalon Cal	14:05	159.8			HPF	cal							Yes
0089	Etalon Cal	14:08	159.8			HPF	cal							Yes
0090	Etalon Cal	14:12	159.8			HPF	cal							Yes
0091	Etalon Cal	14:15	159.8			HPF	cal							Yes
0092	UNe Slave Cal	14:19	426			HPF	cal							Yes
0093	UNe Slave Cal	14:26	426			HPF	cal							Yes
0094	UNe Slave Cal	14:34	426			HPF	cal							Yes
0095	UNe Slave Cal	14:42	426			HPF	cal							Yes
0096	UNe Slave Cal	14:50	426			HPF	cal							Yes
0097	UNe Slave Cal	14:57	426			HPF	cal							Yes
0083	LFC Cal	21:53	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:02	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:02	20			VIRUS	cal							Yes
virus0009901_01	bias	22:04	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:04	20			LRS2	cal							Yes
virus0009902_01	dark	22:06	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:07	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:08	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:10	15			LRS2	cal							Yes
0084	Dark	22:14	319.5			HPF	cal							Yes
0085	Quartz FCU	22:21	74.5			HPF	cal							Yes
0086	Quartz FCU	22:23	74.5			HPF	cal							Yes
0087	Quartz FCU	22:25	74.5			HPF	cal							Yes
0088	Quartz FCU	22:27	74.5			HPF	cal							Yes
0089	Quartz FCU	22:28	74.5			HPF	cal							Yes
0090	Quartz FCU	22:30	74.5			HPF	cal							Yes
0091	Quartz FCU	22:32	74.5			HPF	cal							Yes
0092	Alpha Bright Cal	22:34	85.2			HPF	cal							Yes
0093	Alpha Bright Cal	22:36	85.2			HPF	cal							Yes
0094	Alpha Bright Cal	22:38	85.2			HPF	cal							Yes
0095	Alpha Bright Cal	22:40	85.2			HPF	cal							Yes
0096	LFC FCU	22:43	106.5			HPF	cal							Yes
0097	LFC FCU	22:45	106.5			HPF	cal							Yes
0098	LFC Cal	22:48	106.5			HPF	cal							Yes
0099	LFC Cal	22:50	106.5			HPF	cal							Yes
0100	Etalon Cal	22:53	159.8			HPF	cal							Yes
0101	UNe Slave Cal	22:56	426			HPF	cal							Yes
lrs20000019_01	flat_Qth_R	22:57	15			LRS2	cal							Yes
lrs20000019_02	flat_Qth_R	22:58	15			LRS2	cal							Yes
lrs20000019_03	flat_Qth_R	23:00	15			LRS2	cal							Yes
lrs20000019_04	flat_Qth_R	23:01	15			LRS2	cal							Yes
lrs20000019_05	flat_Qth_R	23:02	15			LRS2	cal							Yes
lrs20000020_01	flat_ldls_long_B	23:03	20			LRS2	cal							Yes
0102	UNe Slave Cal	23:04	426			HPF	cal							Yes
lrs20000020_02	flat_ldls_long_B	23:05	20			LRS2	cal							Yes
lrs20000020_03	flat_ldls_long_B	23:06	20			LRS2	cal							Yes
lrs20000021_01	Cd-A_B	23:07	29			LRS2	cal							Yes
lrs20000021_02	Cd-A_B	23:09	29			LRS2	cal							Yes
lrs20000021_03	Cd-A_B	23:10	29			LRS2	cal							Yes
0103	UNe Slave Cal	23:12	426			HPF	cal							Yes
lrs20000022_01	FeAr_R	23:12	15			LRS2	cal							Yes
lrs20000022_02	FeAr_R	23:13	15			LRS2	cal							Yes
lrs20000022_03	FeAr_R	23:14	15			LRS2	cal							Yes
lrs20000023_01	Hg_R	23:15	20			LRS2	cal							Yes
lrs20000023_02	Hg_R	23:17	20			LRS2	cal							Yes
lrs20000023_03	Hg_R	23:18	20			LRS2	cal							Yes
lrs20000024_01	Hg_B	23:19	15			LRS2	cal							Yes
0104	UNe Slave Cal	23:20	426			HPF	cal							Yes
lrs20000024_02	Hg_B	23:20	15			LRS2	cal							Yes
lrs20000024_03	Hg_B	23:22	15			LRS2	cal							Yes
0105	UNe Slave Cal	23:27	426			HPF	cal							Yes
virus0000031_01	flat_ldls_long	23:28	15			VIRUS	cal							Yes
virus0000031_02	flat_ldls_long	23:30	15			VIRUS	cal							Yes
virus0000031_03	flat_ldls_long	23:31	15			VIRUS	cal							Yes
virus0000032_01	Cd-A	23:32	15			VIRUS	cal							Yes
virus0000032_02	Cd-A	23:34	15			VIRUS	cal							Yes
0106	UNe Slave Cal	23:35	426			HPF	cal							Yes
virus0000032_03	Cd-A	23:35	15			VIRUS	cal							Yes
virus0000033_01	Hg	23:37	15			VIRUS	cal							Yes
virus0000033_02	Hg	23:38	15			VIRUS	cal							Yes
virus0000033_03	Hg	23:39	15			VIRUS	cal							Yes
lrs20000025_01	dark	23:41	360			LRS2	cal							Yes
virus0000034_01	dark	23:41	360			VIRUS	cal							Yes
lrs20000025_02	dark	23:48	360			LRS2	cal							Yes
virus0000034_02	dark	23:48	360			VIRUS	cal							Yes
lrs20000025_03	dark	23:54	360			LRS2	cal							Yes
virus0000034_03	dark	23:55	360			VIRUS	cal							Yes