HET Night Report Reader

Civil Date	Ephemerides
2026-02-11	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:48	01:34	02:02	12:17	12:46	13:32	10:24	-
Night Length	10:15		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
00:17	12.2	11.8	01:45	dew point	01:28
06:35	9.5	11.6	12:36	twilight	06:01
Total Time Open					7:29

Program	Night Priority	Science
02:02	Idle due to weather (Dew Point, humidity, clouds)
06:35	Science
07:26	Idle due to weather (Clouds)
07:33	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:15	01:29				-4176	9.6	10.8	11.2	114	4	First of Night
↪ Comments			GRoC was insane at start. Had to pass +9000 to get back to normal before I could start iterations. There wasn't a big temp difference so it's unusual for it to be that bad from one night to the next. At some point in the day a large GRoC must have been passed without being undone.
06:35	07:26	0.56	0.97	70	-2187	10.3	10.8	10.8	183	9	First of Night
12:26	12:33	0.60	1.04	-190	-1661	11.8	12.2	11.9	244	5	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
4776	07:34-07:38	00:04	Dome stopped at 72.8 while going CCW to 263.1. Aborted dome movement and sent target position manually.

TO Comments	Dew point and humidity for first half. Occasional clouds the rest.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20000031_08	bias	00:00	0			LRS2	cal							Yes
virus0000030_08	bias	00:00	0			VIRUS	cal							Yes
lrs20000031_09	bias	00:01	0			LRS2	cal							Yes
virus0000030_09	bias	00:01	0			VIRUS	cal							Yes
lrs20000031_10	bias	00:02	0			LRS2	cal							Yes
virus0000030_10	bias	00:02	0			VIRUS	cal							Yes
lrs20000031_11	bias	00:03	0			LRS2	cal							Yes
virus0000030_11	bias	00:03	0			VIRUS	cal							Yes
lrs20000001_01	skyflat	00:52	7			LRS2	cal							Yes
lrs20000002_01	skyflat	00:53	10			LRS2	cal							Yes
lrs20000003_01	skyflat	00:54	13			LRS2	cal							Yes
lrs20000004_01	skyflat	00:56	16			LRS2	cal							Yes
lrs20000005_01	skyflat	00:57	22			LRS2	cal							Yes
lrs20000006_01	skyflat	00:58	30			LRS2	cal							Yes
virus0000001_01	skyflat	01:01	7			VIRUS	cal							Yes
virus0000002_01	skyflat	01:02	10			VIRUS	cal							Yes
virus0000003_01	skyflat	01:03	14			VIRUS	cal							Yes
virus0000004_01	skyflat	01:05	18			VIRUS	cal							Yes
virus0000005_01	skyflat	01:06	26			VIRUS	cal							Yes
lrs20000007_01	dark	01:16	360			LRS2	cal							Yes
virus0000006_01	dark	01:16	360			VIRUS	cal							Yes
0001	LFC Cal	01:34	106.5			HPF	cal							Yes
virus0000007_01	parallel	01:34	3300			VIRUS	sci							Yes
lrs20000008_01	QID 2553	01:34	3300	4.0	UT26-1-004	LRS2-B	sci	2.67		20.15	0.30		Exposure aborted 10 minutes in for dew point closure.	No
0002	LFC Cal	01:37	106.5			HPF	cal							Yes
0003	LFC Cal	01:39	106.5			HPF	cal							Yes
lrs20000009_01	dark	01:44	360			LRS2	cal							Yes
virus0000008_01	dark	01:44	360			VIRUS	cal							Yes
lrs20000009_02	dark	01:51	360			LRS2	cal							Yes
virus0000008_02	dark	01:51	360			VIRUS	cal							Yes
0004	LFC Cal	03:27	106.5			HPF	cal							Yes
0005	LFC Cal	03:29	106.5			HPF	cal							Yes
0006	LFC Cal	03:32	106.5			HPF	cal							Yes
virus0000009_01	flat_ldls_long	03:43	15			VIRUS	cal							Yes
virus0000009_02	flat_ldls_long	03:44	15			VIRUS	cal							Yes
virus0000009_03	flat_ldls_long	03:46	15			VIRUS	cal							Yes
virus0000010_01	Cd-A	03:47	15			VIRUS	cal							Yes
virus0000010_02	Cd-A	03:48	15			VIRUS	cal							Yes
virus0000010_03	Cd-A	03:50	15			VIRUS	cal							Yes
virus0000011_01	Hg	03:51	15			VIRUS	cal							Yes
virus0000011_02	Hg	03:52	15			VIRUS	cal							Yes
virus0000011_03	Hg	03:54	15			VIRUS	cal							Yes
0007	LFC Cal	04:40	106.5			HPF	cal							Yes
0008	LFC Cal	04:42	106.5			HPF	cal							Yes
0009	LFC Cal	04:44	106.5			HPF	cal							Yes
0010	LFC Cal	05:29	106.5			HPF	cal							Yes
0011	LFC Cal	05:32	106.5			HPF	cal							Yes
0012	LFC Cal	05:34	106.5			HPF	cal							Yes
0013	LFC Cal	06:36	106.5			HPF	cal							Yes
0014	LFC Cal	06:38	106.5			HPF	cal							Yes
0015	LFC Cal	06:40	106.5			HPF	cal							Yes
0016	QID 1771	07:41	841.4	3.0	UT26-1-014	HPF	sci	1.41		20.12	0.61	425		P4
virus0000012_01	parallel	07:41	891			VIRUS	sci							Yes
0017	LFC Cal	07:57	106.5			HPF	cal							Yes
0018	QID 1772	08:02	841.4	7.0	UT26-1-014	HPF	sci	1.48		20.17	0.84	571		P4
virus0000013_01	parallel	08:02	891			VIRUS	sci							Yes
0019	LFC Cal	08:18	106.5			HPF	cal							Yes
0020	LFC Cal	08:22	106.5			HPF	cal							Yes
virus0000014_01	parallel	08:22	300			VIRUS	sci							Yes
lrs20000010_01	QID 54	08:22	300	6.0	PSU26-1-003	LRS2-R	sci	1.67		20.48	1.08			P4
0021	LFC Cal	08:24	106.5			HPF	cal							Yes
lrs20000011_01	parallel	08:32	600			LRS2	sci							Yes
virus0000015_01	QID 511	08:32	600	5.0	UT26-1-018	VIRUS	sci	1.75		21.66	0.77			Yes
0022	LFC Cal	08:33	106.5			HPF	cal							Yes
0023	LFC Cal	08:35	106.5			HPF	cal							Yes
0024	LFC Cal	08:37	106.5			HPF	cal							Yes
lrs20000011_02	parallel	08:43	600			LRS2	sci							Yes
virus0000015_02	QID 511	08:43	600	1.0	UT26-1-018	VIRUS	sci	1.49		21.63	0.92			Yes
lrs20000011_03	parallel	08:55	600			LRS2	sci							Yes
virus0000015_03	QID 511	08:55	600	2.0	UT26-1-018	VIRUS	sci	1.48		21.62	0.89			Yes
lrs20000012_01	parallel	09:09	360			LRS2	sci							Yes
virus0000016_01	QID 390	09:09	360	4.0	UT26-1-008	VIRUS	sci	1.48		21.58	0.71			Yes
0025	LFC Cal	09:10	106.5			HPF	cal							Yes
0026	LFC Cal	09:12	106.5			HPF	cal							Yes
lrs20000012_02	parallel	09:17	360			LRS2	sci							Yes
virus0000016_02	QID 390	09:17	360	2.0	UT26-1-008	VIRUS	sci	1.49		21.52	0.84			Yes
lrs20000012_03	parallel	09:24	360			LRS2	sci							Yes
virus0000016_03	QID 390	09:24	360	1.0	UT26-1-008	VIRUS	sci	1.56		21.55	0.86			Yes
lrs20000013_01	parallel	09:34	400			LRS2	sci							Yes
virus0000017_01	QID 2541	09:34	400	4.3	UT26-1-013	VIRUS	sci	1.55		21.95	0.94			Yes
0027	LFC Cal	09:35	106.5			HPF	cal							Yes
0028	LFC Cal	09:37	106.5			HPF	cal							Yes
0029	LFC Cal	09:39	106.5			HPF	cal							Yes
lrs20000013_02	parallel	09:42	400			LRS2	sci							Yes
virus0000017_02	QID 2541	09:42	400	1.3	UT26-1-013	VIRUS	sci	1.48		21.93	0.94			Yes
lrs20000013_03	parallel	09:50	400			LRS2	sci							Yes
virus0000017_03	QID 2541	09:50	400	1.3	UT26-1-013	VIRUS	sci	1.48		21.91	0.95			Yes
0030	LFC Cal	10:00	106.5			HPF	cal							Yes
lrs20000014_01	parallel	10:00	360			LRS2	sci							Yes
virus0000018_01	QID 379	10:00	360	3.0	UT26-1-008	VIRUS	sci	1.56		22.00	0.92			Yes
0031	LFC Cal	10:03	106.5			HPF	cal							Yes
lrs20000014_02	parallel	10:07	360			LRS2	sci							Yes
virus0000018_02	QID 379	10:07	360	1.0	UT26-1-008	VIRUS	sci	1.66		21.98	0.91			Yes
lrs20000014_03	parallel	10:14	360			LRS2	sci							Yes
virus0000018_03	QID 379	10:14	360	1.0	UT26-1-008	VIRUS	sci	1.58		21.92	0.91			Yes
virus0000019_01	P177D_042_E	10:25	60	5.0		VIRUS	spec	1.92		21.93	0.66			Yes
virus0000019_02	P177D_042_E	10:27	60	1.0		VIRUS	spec	1.93		21.89	0.65			Yes
virus0000019_03	P177D_042_E	10:29	60	1.0		VIRUS	spec	1.88		21.90	0.67			Yes
virus0000020_01	parallel	10:35	374			VIRUS	sci							Yes
0032	QID 1835	10:36	340.8	5.3	PSU26-1-010	HPF	sci	1.57		19.94	0.72	442		P4
0033	QID 1617	10:47	745.5	5.6	UT26-1-005	HPF	sci	1.63		19.89	0.69	66		Yes
virus0000021_01	parallel	10:47	1585			VIRUS	sci							Yes
0034	QID 1617	11:00	745.5	1.6	UT26-1-005	HPF	sci	1.72		19.90	0.79	78		Yes
0035	QID 1618	11:18	649.6	5.2	UT26-1-005	HPF	sci	1.57		20.06	0.67	72		Yes
virus0000022_01	parallel	11:18	2083			VIRUS	sci							Yes
0036	QID 1618	11:30	649.6	1.2	UT26-1-005	HPF	sci	1.44		20.04	0.63	66		Yes
0037	QID 1618	11:41	649.6	0.2	UT26-1-005	HPF	sci	1.46		20.07	0.70	70		Yes
0038	HR4828_tell_std	12:01	117.2	9.0		HPF	telluric	1.38		19.99	0.87			Yes
lrs20000015_01	BD+601753_056_E	12:09	30	5.5		LRS2	spec	1.97		21.33	1.00			Yes
lrs20000016_01	BD+601753_066_E	12:13	30	4.5		LRS2	spec	1.83		20.49	1.01			Yes
0039	QID 1864	12:18	969.1	4.8	PSU26-1-007	HPF	sci	1.68		19.69	0.78	10	Clouds rolled in soon after exposure started. Aborted exposure halfway through.	No
virus0000023_01	parallel	12:18	1023			VIRUS	sci							Yes
lrs20000017_01	bias	12:30	0			LRS2	cal							Yes
virus0000024_01	bias	12:31	0			VIRUS	cal							Yes
virus0000025_01	Cd-A	12:35	15		ENG26-1-002	VIRUS	cal							Yes
virus0000026_01	Hg	12:37	15		ENG26-1-002	VIRUS	cal							Yes
0040	Dark	12:45	319.5			HPF	cal							Yes
0041	Quartz FCU	12:56	74.5			HPF	cal							Yes
0042	Quartz FCU	12:58	74.5			HPF	cal							Yes
0043	Quartz FCU	13:00	74.5			HPF	cal							Yes
0044	Quartz FCU	13:02	74.5			HPF	cal							Yes
0045	Quartz FCU	13:03	74.5			HPF	cal							Yes
0046	Quartz FCU	13:05	74.5			HPF	cal							Yes
0047	Quartz FCU	13:07	74.5			HPF	cal							Yes
0048	Alpha Bright Cal	13:09	85.2			HPF	cal							Yes
0049	Alpha Bright Cal	13:11	85.2			HPF	cal							Yes
0050	Alpha Bright Cal	13:13	85.2			HPF	cal							Yes
0051	Alpha Bright Cal	13:15	85.2			HPF	cal							Yes
0052	LFC FCU	13:18	106.5			HPF	cal							Yes
0053	LFC FCU	13:20	106.5			HPF	cal							Yes
0054	LFC FCU	13:22	106.5			HPF	cal							Yes
0055	LFC FCU	13:25	106.5			HPF	cal							Yes
0056	LFC FCU	13:27	106.5			HPF	cal							Yes
0057	LFC FCU	13:29	106.5			HPF	cal							Yes
0058	LFC Cal	13:32	106.5			HPF	cal							Yes
0059	LFC Cal	13:35	106.5			HPF	cal							Yes
0060	Etalon Cal	13:42	159.8			HPF	cal							Yes
0061	Etalon Cal	13:46	159.8			HPF	cal							Yes
0062	Etalon Cal	13:49	159.8			HPF	cal							Yes
0063	Etalon Cal	13:52	159.8			HPF	cal							Yes
0064	UNe Slave Cal	13:56	426			HPF	cal							Yes
0065	UNe Slave Cal	14:04	426			HPF	cal							Yes
0066	UNe Slave Cal	14:11	426			HPF	cal							Yes
0067	UNe Slave Cal	14:19	426			HPF	cal							Yes
0068	UNe Slave Cal	14:27	426			HPF	cal							Yes
0069	UNe Slave Cal	14:35	426			HPF	cal							Yes
0085	LFC Cal	22:22	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	22:37	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
0086	Dark	22:45	319.5			HPF	cal							Yes
0087	Quartz FCU	22:52	74.5			HPF	cal							Yes
0088	Quartz FCU	22:53	74.5			HPF	cal							Yes
0089	Quartz FCU	22:55	74.5			HPF	cal							Yes
0090	Quartz FCU	22:57	74.5			HPF	cal							Yes
0091	Quartz FCU	22:59	74.5			HPF	cal							Yes
0092	Quartz FCU	23:01	74.5			HPF	cal							Yes
0093	Quartz FCU	23:02	74.5			HPF	cal							Yes
0094	Alpha Bright Cal	23:05	85.2			HPF	cal							Yes
0095	Alpha Bright Cal	23:07	85.2			HPF	cal							Yes
0096	Alpha Bright Cal	23:09	85.2			HPF	cal							Yes
0097	Alpha Bright Cal	23:10	85.2			HPF	cal							Yes
0098	LFC FCU	23:13	106.5			HPF	cal							Yes
0099	LFC FCU	23:15	106.5			HPF	cal							Yes
0100	LFC Cal	23:18	106.5			HPF	cal							Yes
0101	LFC Cal	23:21	106.5			HPF	cal							Yes
0102	Etalon Cal	23:23	159.8			HPF	cal							Yes
lrs20000025_01	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000025_02	flat_Qth_R	23:29	15			LRS2	cal							Yes
lrs20000025_03	flat_Qth_R	23:31	15			LRS2	cal							Yes
lrs20000025_04	flat_Qth_R	23:32	15			LRS2	cal							Yes
lrs20000025_05	flat_Qth_R	23:33	15			LRS2	cal							Yes
lrs20000026_01	flat_ldls_long_B	23:34	20			LRS2	cal							Yes
lrs20000026_02	flat_ldls_long_B	23:36	20			LRS2	cal							Yes
lrs20000026_03	flat_ldls_long_B	23:37	20			LRS2	cal							Yes
lrs20000027_01	Cd-A_B	23:38	29			LRS2	cal							Yes
lrs20000027_02	Cd-A_B	23:40	29			LRS2	cal							Yes
lrs20000027_03	Cd-A_B	23:41	29			LRS2	cal							Yes
lrs20000028_01	FeAr_R	23:43	15			LRS2	cal							Yes
lrs20000028_02	FeAr_R	23:44	15			LRS2	cal							Yes
lrs20000028_03	FeAr_R	23:45	15			LRS2	cal							Yes
lrs20000029_01	Hg_R	23:46	20			LRS2	cal							Yes
lrs20000029_02	Hg_R	23:48	20			LRS2	cal							Yes
lrs20000029_03	Hg_R	23:49	20			LRS2	cal							Yes
lrs20000030_01	Hg_B	23:50	15			LRS2	cal							Yes
lrs20000030_02	Hg_B	23:51	15			LRS2	cal							Yes
lrs20000030_03	Hg_B	23:53	15			LRS2	cal							Yes
lrs20000031_01	bias	23:54	0			LRS2	cal							Yes
virus0000030_01	bias	23:54	0			VIRUS	cal							Yes
lrs20000031_02	bias	23:55	0			LRS2	cal							Yes
virus0000030_02	bias	23:55	0			VIRUS	cal							Yes
lrs20000031_03	bias	23:56	0			LRS2	cal							Yes
virus0000030_03	bias	23:56	0			VIRUS	cal							Yes
lrs20000031_04	bias	23:57	0			LRS2	cal							Yes
0103	LFC Cal	23:57	106.5			HPF	cal							Yes
virus0000030_04	bias	23:57	0			VIRUS	cal							Yes
lrs20000031_05	bias	23:57	0			LRS2	cal							Yes
virus0000030_05	bias	23:58	0			VIRUS	cal							Yes
lrs20000031_06	bias	23:58	0			LRS2	cal							Yes
virus0000030_06	bias	23:59	0			VIRUS	cal							Yes
lrs20000031_07	bias	23:59	0			LRS2	cal							Yes
virus0000030_07	bias	23:59	0			VIRUS	cal							Yes