HET Night Report Reader

Civil Date	Ephemerides
2026-02-08	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:45	01:31	02:00	12:20	12:48	13:35	07:35	-
Night Length	10:20		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Sergey Rostopchin	Cassie Crowe

Overlaps
TO Overlap	RA Overlap
-	Zach Vanderbosch

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:42	12.9	10.6	08:23	clouds	07:41
Total Time Open					7:41

Program	Night Priority	Science
02:00	Idle due to weather (clouds, low transparency)
03:06	Science
04:07	Idle due to weather (clouds, low transparency)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:10	01:49	0.51	0.96	80	-4281	12.1	10.8	10.7	271	9	First of Night

Problem Reports					no PRs

TO Comments	Fighting clouds all night.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	Etalon Cal	00:01	159.8			HPF	cal							Yes
0002	UNe Slave Cal	00:05	426			HPF	cal							Yes
lrs20000001_01	bias	00:06	0			LRS2	cal							Yes
virus0000001_01	bias	00:06	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:06	0			LRS2	cal							Yes
virus0000001_02	bias	00:07	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:07	0			LRS2	cal							Yes
virus0000001_03	bias	00:07	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:08	0			LRS2	cal							Yes
virus0000001_04	bias	00:08	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:09	0			LRS2	cal							Yes
virus0000001_05	bias	00:09	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:10	0			LRS2	cal							Yes
virus0000001_06	bias	00:10	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:11	0			LRS2	cal							Yes
virus0000001_07	bias	00:11	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:12	0			LRS2	cal							Yes
virus0000001_08	bias	00:12	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:12	0			LRS2	cal							Yes
0003	UNe Slave Cal	00:13	426			HPF	cal							Yes
virus0000001_09	bias	00:13	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:13	0			LRS2	cal							Yes
virus0000001_10	bias	00:14	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:14	0			LRS2	cal							Yes
virus0000001_11	bias	00:14	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:15	360			LRS2	cal							Yes
virus0000002_01	dark	00:15	360			VIRUS	cal							Yes
0004	UNe Slave Cal	00:21	426			HPF	cal							Yes
lrs20000002_02	dark	00:22	360			LRS2	cal							Yes
virus0000002_02	dark	00:22	360			VIRUS	cal							Yes
0005	UNe Slave Cal	00:28	426			HPF	cal							Yes
lrs20000002_03	dark	00:29	360			LRS2	cal							Yes
virus0000002_03	dark	00:29	360			VIRUS	cal							Yes
0006	UNe Slave Cal	00:36	426			HPF	cal							Yes
0007	UNe Slave Cal	00:44	426			HPF	cal							Yes
lrs20000003_01	skyflat	00:50	7			LRS2	cal							Yes
lrs20000004_01	skyflat	00:51	10			LRS2	cal							Yes
lrs20000005_01	skyflat	00:52	13			LRS2	cal							Yes
lrs20000006_01	skyflat	00:54	16			LRS2	cal							Yes
lrs20000007_01	skyflat	00:55	22			LRS2	cal							Yes
lrs20000008_01	skyflat	00:56	30			LRS2	cal							Yes
virus0000003_01	skyflat	00:59	7			VIRUS	cal							Yes
virus0000004_01	skyflat	01:00	10			VIRUS	cal							Yes
virus0000005_01	skyflat	01:01	14			VIRUS	cal							Yes
virus0000006_01	skyflat	01:03	18			VIRUS	cal							Yes
virus0000007_01	skyflat	01:04	26			VIRUS	cal							Yes
virus0000008_01	flat_ldls_long	01:11	15			VIRUS	cal							Yes
virus0000008_02	flat_ldls_long	01:12	15			VIRUS	cal							Yes
virus0000008_03	flat_ldls_long	01:14	15			VIRUS	cal							Yes
virus0000009_01	Cd-A	01:15	15			VIRUS	cal							Yes
virus0000009_02	Cd-A	01:17	15			VIRUS	cal							Yes
virus0000009_03	Cd-A	01:18	15			VIRUS	cal							Yes
virus0000010_01	Hg	01:19	15			VIRUS	cal							Yes
virus0000010_02	Hg	01:21	15			VIRUS	cal							Yes
virus0000010_03	Hg	01:22	15			VIRUS	cal							Yes
lrs20000009_01	flat_Qth_R	01:37	15			LRS2	cal							Yes
lrs20000009_02	flat_Qth_R	01:38	15			LRS2	cal							Yes
lrs20000009_03	flat_Qth_R	01:39	15			LRS2	cal							Yes
lrs20000009_04	flat_Qth_R	01:40	15			LRS2	cal							Yes
lrs20000009_05	flat_Qth_R	01:41	15			LRS2	cal							Yes
lrs20000010_01	flat_ldls_long_B	01:43	20			LRS2	cal							Yes
lrs20000010_02	flat_ldls_long_B	01:44	20			LRS2	cal							Yes
lrs20000010_03	flat_ldls_long_B	01:45	20			LRS2	cal							Yes
lrs20000011_01	Cd-A_B	01:47	29			LRS2	cal							Yes
lrs20000011_02	Cd-A_B	01:48	29			LRS2	cal							Yes
lrs20000011_03	Cd-A_B	01:50	29			LRS2	cal							Yes
virus0000011_01	parallel	01:59	360			VIRUS	sci							Yes
lrs20000012_01	QID 1725	01:59	360	4.0	UT26-1-016	LRS2-R	sci	1.40	0.84	20.37	0.66			P4
0008	LFC Cal	02:00	106.5			HPF	cal							Yes
0009	LFC Cal	02:02	106.5			HPF	cal							Yes
0010	LFC Cal	02:09	106.5			HPF	cal							Yes
lrs20000013_01	QID 1726	02:09	180	4.0	UT26-1-016	LRS2-B	sci	1.62	0.94	21.55	0.39		clouds	No
0011	LFC Cal	02:17	106.5			HPF	cal							Yes
lrs20000014_01	parallel	02:17	360			LRS2	sci							Yes
virus0000012_01	QID 362	02:17	360	5.0	UT26-1-008	VIRUS	sci	1.43	0.84	21.64	0.37		clouds, low transparency	No
0012	LFC Cal	02:19	106.5			HPF	cal							Yes
lrs20000015_01	FeAr_R	02:35	15			LRS2	cal							Yes
lrs20000015_02	FeAr_R	02:36	15			LRS2	cal							Yes
lrs20000015_03	FeAr_R	02:37	15			LRS2	cal							Yes
lrs20000016_01	Hg_R	02:38	20			LRS2	cal							Yes
lrs20000016_02	Hg_R	02:40	20			LRS2	cal							Yes
lrs20000016_03	Hg_R	02:41	20			LRS2	cal							Yes
lrs20000017_01	Hg_B	02:42	15			LRS2	cal							Yes
lrs20000017_02	Hg_B	02:44	15			LRS2	cal							Yes
lrs20000017_03	Hg_B	02:45	15			LRS2	cal							Yes
0013	HR2395_tell_std	03:11	117.2	5.0		HPF	telluric	1.36	0.96	20.05	0.65			Yes
lrs20000018_01	BD+541216_056_E	03:25	60	12.0		LRS2	spec	1.43	0.94	21.70	0.70			Yes
lrs20000019_01	BD+541216_066_E	03:28	30	2.5		LRS2	spec	1.57	0.93	20.42	0.52			Yes
0014	QID 1481	03:34	969.1	4.8	UT26-1-010	HPF	sci	1.45	0.85	20.10	0.71	252		P4
virus0000013_01	parallel	03:34	2047			VIRUS	sci							Yes
0015	QID 1481	03:51	969.1	0.8	UT26-1-010	HPF	sci	1.34	1.11	20.15	0.65	245		P4
0016	LFC Cal	04:09	106.5			HPF	cal							Yes
virus0000014_01	parallel	04:14	1984			VIRUS	sci							Yes
0017	QID 332	04:15	617.7	7.7	UT26-1-007	HPF	sci	1.41	1.08	20.24	0.59	58	clouds, low transparency	No
0018	QID 332	04:26	617.7	0.7	UT26-1-007	HPF	sci	1.46	0.92	20.23	0.58	66		No
0019	QID 332	04:37	617.7	0.7	UT26-1-007	HPF	sci	1.53	0.83	20.16	0.35	47		No
0020	LFC Cal	04:49	106.5			HPF	cal							Yes
lrs20000020_01	parallel	04:52	540			LRS2	sci							Yes
virus0000015_01	QID 2541	04:52	540	5.0	UT26-1-013	VIRUS	sci	1.49	0.88	21.50	0.33		clouds, low transparency	No
0021	LFC Cal	04:53	106.5			HPF	cal							Yes
0022	LFC Cal	04:55	106.5			HPF	cal							Yes
0023	LFC Cal	04:57	106.5			HPF	cal							Yes
lrs20000020_02	parallel	05:03	540			LRS2	sci							Yes
virus0000015_02	QID 2541	05:03	540	2.0	UT26-1-013	VIRUS	sci	1.49	0.78	21.50	0.21			No
lrs20000020_03	parallel	05:13	540			LRS2	sci							Yes
virus0000015_03	QID 2541	05:13	540	1.0	UT26-1-013	VIRUS	sci	1.50	0.79	21.51	0.20			No
0024	LFC Cal	05:55	106.5			HPF	cal							Yes
0025	LFC Cal	05:58	106.5			HPF	cal							Yes
0026	LFC Cal	06:00	106.5			HPF	cal							Yes
0027	LFC Cal	07:49	106.5			HPF	cal							Yes
0028	LFC Cal	07:51	106.5			HPF	cal							Yes
0029	LFC Cal	07:54	106.5			HPF	cal							Yes
lrs20000021_01	flat_Qth_R	07:58	15			LRS2	cal							Yes
lrs20000021_02	flat_Qth_R	08:00	15			LRS2	cal							Yes
lrs20000021_03	flat_Qth_R	08:01	15			LRS2	cal							Yes
lrs20000021_04	flat_Qth_R	08:02	15			LRS2	cal							Yes
lrs20000021_05	flat_Qth_R	08:03	15			LRS2	cal							Yes
lrs20000022_01	flat_ldls_long_B	08:05	20			LRS2	cal							Yes
lrs20000022_02	flat_ldls_long_B	08:06	20			LRS2	cal							Yes
lrs20000022_03	flat_ldls_long_B	08:07	20			LRS2	cal							Yes
lrs20000023_01	Cd-A_B	08:09	29			LRS2	cal							Yes
lrs20000023_02	Cd-A_B	08:10	29			LRS2	cal							Yes
lrs20000023_03	Cd-A_B	08:11	29			LRS2	cal							Yes
lrs20000024_01	FeAr_R	08:13	15			LRS2	cal							Yes
lrs20000024_02	FeAr_R	08:14	15			LRS2	cal							Yes
lrs20000024_03	FeAr_R	08:15	15			LRS2	cal							Yes
lrs20000025_01	Hg_R	08:17	20			LRS2	cal							Yes
lrs20000025_02	Hg_R	08:18	20			LRS2	cal							Yes
lrs20000025_03	Hg_R	08:19	20			LRS2	cal							Yes
lrs20000026_01	Hg_B	08:21	15			LRS2	cal							Yes
lrs20000026_02	Hg_B	08:22	15			LRS2	cal							Yes
lrs20000026_03	Hg_B	08:23	15			LRS2	cal							Yes
0030	LFC Cal	09:37	106.5			HPF	cal							Yes
0031	LFC Cal	09:40	106.5			HPF	cal							Yes
0032	LFC Cal	09:42	106.5			HPF	cal							Yes
lrs20000027_01	bias	10:56	0			LRS2	cal							Yes
virus0000016_01	bias	10:57	0			VIRUS	cal							Yes
virus0000017_01	Cd-A	11:02	15		ENG26-1-002	VIRUS	cal							Yes
virus0000018_01	Hg	11:03	15		ENG26-1-002	VIRUS	cal							Yes
0033	Dark	11:11	319.5			HPF	cal							Yes
0034	Quartz FCU	11:23	74.5			HPF	cal							Yes
0035	Quartz FCU	11:25	74.5			HPF	cal							Yes
0036	Quartz FCU	11:26	74.5			HPF	cal							Yes
0037	Quartz FCU	11:28	74.5			HPF	cal							Yes
0038	Quartz FCU	11:30	74.5			HPF	cal							Yes
0039	Quartz FCU	11:32	74.5			HPF	cal							Yes
0040	Quartz FCU	11:34	74.5			HPF	cal							Yes
0041	Alpha Bright Cal	11:36	85.2			HPF	cal							Yes
0042	Alpha Bright Cal	11:38	85.2			HPF	cal							Yes
0043	Alpha Bright Cal	11:40	85.2			HPF	cal							Yes
0044	Alpha Bright Cal	11:42	85.2			HPF	cal							Yes
0045	LFC FCU	11:44	106.5			HPF	cal							Yes
0046	LFC FCU	11:47	106.5			HPF	cal							Yes
0047	LFC FCU	11:49	106.5			HPF	cal							Yes
0048	LFC FCU	11:51	106.5			HPF	cal							Yes
0049	LFC FCU	11:54	106.5			HPF	cal							Yes
0050	LFC FCU	11:56	106.5			HPF	cal							Yes
0051	LFC Cal	11:59	106.5			HPF	cal							Yes
0052	LFC Cal	12:01	106.5			HPF	cal							Yes
0053	Etalon Cal	12:09	159.8			HPF	cal							Yes
0054	Etalon Cal	12:12	159.8			HPF	cal							Yes
0055	Etalon Cal	12:15	159.8			HPF	cal							Yes
0056	Etalon Cal	12:19	159.8			HPF	cal							Yes
0057	UNe Slave Cal	12:22	426			HPF	cal							Yes
0058	UNe Slave Cal	12:30	426			HPF	cal							Yes
0059	UNe Slave Cal	12:38	426			HPF	cal							Yes
0060	UNe Slave Cal	12:45	426			HPF	cal							Yes
0061	UNe Slave Cal	12:53	426			HPF	cal							Yes
0062	UNe Slave Cal	13:01	426			HPF	cal							Yes
0051	LFC Cal	23:01	106.5			HPF	cal							Yes
lrs20009900_01	bias	23:08	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	23:09	20			VIRUS	cal							Yes
virus0009901_01	bias	23:10	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	23:11	20			LRS2	cal							Yes
virus0009902_01	dark	23:12	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	23:13	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	23:15	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	23:16	15			LRS2	cal							Yes
virus0009905_01	dark	23:20	15			VIRUS	cal							Yes
virus0009906_01	bias	23:22	0			VIRUS	cal							Yes
0052	Dark	23:23	319.5			HPF	cal							Yes
0053	Quartz FCU	23:30	74.5			HPF	cal							Yes
0054	Quartz FCU	23:32	74.5			HPF	cal							Yes
0055	Quartz FCU	23:33	74.5			HPF	cal							Yes
0056	Quartz FCU	23:35	74.5			HPF	cal							Yes
0057	Quartz FCU	23:37	74.5			HPF	cal							Yes
0058	Quartz FCU	23:39	74.5			HPF	cal							Yes
0059	Quartz FCU	23:41	74.5			HPF	cal							Yes
0060	Alpha Bright Cal	23:43	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	23:45	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	23:47	85.2			HPF	cal							Yes
0063	Alpha Bright Cal	23:49	85.2			HPF	cal							Yes
0064	LFC FCU	23:51	106.5			HPF	cal							Yes
0065	LFC FCU	23:54	106.5			HPF	cal							Yes
0066	LFC Cal	23:56	106.5			HPF	cal							Yes
0067	LFC Cal	23:59	106.5			HPF	cal							Yes