HET Night Report Reader

Civil Date	Ephemerides
2026-02-20	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:55	01:40	02:08	12:10	12:38	13:24	-	04:16
Night Length	10:02		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
Zach Vanderbosch	Amy Westfall

Overlaps
TO Overlap	RA Overlap
-	Sergey Rostopchin

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:50	14.4	12.6	03:10	dust	02:20
06:46	8.0	9.0	12:40	twilight	05:54
Total Time Open					8:14

Program	Night Priority	Science
02:08	Engineering (hpf)
02:29	Science
03:09	Idle due to weather (Dust)
06:56	Science
11:50	Engineering (hpf)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:22	01:49	0.66	1.18	90		13.6	13.4	13.1	270	12	First of Night
06:56	07:31	0.66	1.07	70	-2228	7.8	8.8	8.9	296	14	Stack/Re-stack
12:32	12:39	1.58	2.48	235	-2303	2.9	6.2	6.5	342	14	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6645	09:14-09:20	00:06	HObs Aborted Target When Azimuth Recalculation Failed	Issued remaining setup and iexp commands from the terminal.
6646	10:39-10:42	00:03	"Stuck Bits" on V326 L/R, Attempted vreload but Problem Persisted	After attempting the vreload, we continued with science operations.

TO Comments	Closed briefly by dust, moderate seeing issues.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
virus0000034_02	Cd-A	00:01	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:02	426			HPF	cal							Yes
virus0000034_03	Cd-A	00:02	15			VIRUS	cal							Yes
virus0000035_01	Hg	00:04	15			VIRUS	cal							Yes
virus0000035_02	Hg	00:05	15			VIRUS	cal							Yes
virus0000035_03	Hg	00:06	15			VIRUS	cal							Yes
lrs20000001_01	bias	00:08	0			LRS2	cal							Yes
virus0000001_01	bias	00:08	0			VIRUS	cal							Yes
lrs20000001_02	bias	00:09	0			LRS2	cal							Yes
virus0000001_02	bias	00:09	0			VIRUS	cal							Yes
lrs20000001_03	bias	00:09	0			LRS2	cal							Yes
virus0000001_03	bias	00:10	0			VIRUS	cal							Yes
lrs20000001_04	bias	00:10	0			LRS2	cal							Yes
virus0000001_04	bias	00:11	0			VIRUS	cal							Yes
lrs20000001_05	bias	00:11	0			LRS2	cal							Yes
virus0000001_05	bias	00:11	0			VIRUS	cal							Yes
lrs20000001_06	bias	00:12	0			LRS2	cal							Yes
virus0000001_06	bias	00:12	0			VIRUS	cal							Yes
lrs20000001_07	bias	00:13	0			LRS2	cal							Yes
virus0000001_07	bias	00:13	0			VIRUS	cal							Yes
lrs20000001_08	bias	00:14	0			LRS2	cal							Yes
virus0000001_08	bias	00:14	0			VIRUS	cal							Yes
lrs20000001_09	bias	00:15	0			LRS2	cal							Yes
virus0000001_09	bias	00:15	0			VIRUS	cal							Yes
lrs20000001_10	bias	00:16	0			LRS2	cal							Yes
virus0000001_10	bias	00:16	0			VIRUS	cal							Yes
lrs20000001_11	bias	00:17	0			LRS2	cal							Yes
virus0000001_11	bias	00:17	0			VIRUS	cal							Yes
lrs20000002_01	dark	00:17	360			LRS2	cal							Yes
virus0000002_01	dark	00:18	360			VIRUS	cal							Yes
lrs20000002_02	dark	00:24	360			LRS2	cal							Yes
virus0000002_02	dark	00:25	360			VIRUS	cal							Yes
lrs20000002_03	dark	00:31	360			LRS2	cal							Yes
virus0000002_03	dark	00:31	360			VIRUS	cal							Yes
lrs20000003_01	skyflat	00:59	7			LRS2	cal							Yes
lrs20000004_01	skyflat	01:00	10			LRS2	cal							Yes
lrs20000005_01	skyflat	01:02	13			LRS2	cal							Yes
lrs20000006_01	skyflat	01:03	16			LRS2	cal							Yes
lrs20000007_01	skyflat	01:04	22			LRS2	cal							Yes
lrs20000008_01	skyflat	01:05	30			LRS2	cal							Yes
virus0000003_01	skyflat	01:08	7			VIRUS	cal							Yes
virus0000004_01	skyflat	01:09	10			VIRUS	cal							Yes
virus0000005_01	skyflat	01:10	14			VIRUS	cal							Yes
virus0000006_01	skyflat	01:12	18			VIRUS	cal							Yes
virus0000007_01	skyflat	01:13	26			VIRUS	cal							Yes
0002	Teegarden	01:56	969.1	6.8	ENG26-1-000	HPF	eng	1.99	0.93	19.82	0.82	232		Yes
virus0000008_01	parallel	01:56	2047			VIRUS	eng							Yes
0003	Teegarden	02:13	969.1	0.8	ENG26-1-000	HPF	eng	1.66	1.32	19.75	0.83	244		Yes
0004	LFC Cal	02:31	106.5			HPF	cal							Yes
virus0000009_01	parallel	02:35	2047			VIRUS	sci							Yes
0005	QID 2616	02:36	969.1	6.8	UT26-1-003	HPF	sci	1.95	1.31	19.98	0.92	31		P4
0006	QID 2616	02:53	969.1	0.8	UT26-1-003	HPF	sci	1.99	1.14	19.94	0.92	26		P4
0007	LFC Cal	04:04	106.5			HPF	cal							Yes
0008	LFC Cal	04:07	106.5			HPF	cal							Yes
0009	LFC Cal	04:09	106.5			HPF	cal							Yes
0010	LFC Cal	05:11	106.5			HPF	cal							Yes
0011	LFC Cal	05:14	106.5			HPF	cal							Yes
0012	LFC Cal	05:16	106.5			HPF	cal							Yes
0013	LFC Cal	07:32	106.5			HPF	cal							Yes
virus0000010_01	parallel	07:37	1984			VIRUS	sci							Yes
0014	QID 1599	07:38	617.7	6.7	UT26-1-007	HPF	sci	1.93		20.38	0.91	14		Yes
0015	QID 1599	07:49	617.7	0.7	UT26-1-007	HPF	sci	1.86		20.35	0.95	19		Yes
0016	QID 1599	08:00	617.7	0.7	UT26-1-007	HPF	sci	1.91		20.36	0.92	16		Yes
0017	LFC Cal	08:12	106.5			HPF	cal							Yes
0018	QID 2567	08:20	308.9	9.9	UT26-1-009	HPF	sci	1.61		20.46	0.94	99		Yes
virus0000011_01	parallel	08:20	1417			VIRUS	sci							Yes
0019	QID 2567	08:26	308.9	0.9	UT26-1-009	HPF	sci	1.62		20.47	0.95	99		Yes
0020	QID 2567	08:32	308.9	0.9	UT26-1-009	HPF	sci	1.69		20.47	0.96	95		Yes
0021	QID 2567	08:38	308.9	0.9	UT26-1-009	HPF	sci	1.67		20.47	0.95	91		Yes
lrs20000009_01	BD+262606_056_E	08:50	60	7.0		LRS2	spec	1.87		22.03	0.70			Yes
lrs20000010_01	BD+262606_066_E	08:53	30	2.5		LRS2	spec	1.84		21.07	0.79			Yes
0022	LFC Cal	09:00	106.5			HPF	cal							Yes
virus0000012_01	parallel	09:00	800			VIRUS	sci							Yes
lrs20000011_01	QID 418	09:00	800	5.7	PSU26-1-022	LRS2-B	sci	1.99		21.81	0.75			P4
0023	LFC Cal	09:02	106.5			HPF	cal							Yes
0024	LFC Cal	09:05	106.5			HPF	cal							Yes
0025	LFC Cal	09:25	106.5			HPF	cal							Yes
virus0000013_01	parallel	09:25	2800			VIRUS	sci							Yes
lrs20000012_01	QID 2522	09:25	2800	5.3	UT26-1-004	LRS2-R	sci	2.02		20.82	1.05			Yes
0026	LFC Cal	09:27	106.5			HPF	cal							Yes
0027	LFC Cal	09:30	106.5			HPF	cal							Yes
lrs20000013_01	parallel	10:18	360			LRS2	sci							Yes
0028	LFC Cal	10:19	106.5			HPF	cal							Yes
virus0000014_01	QID 1985	10:19	360	7.0	UT26-1-008	VIRUS	sci	1.66		22.15	0.77			Yes
0029	LFC Cal	10:21	106.5			HPF	cal							Yes
lrs20000013_02	parallel	10:26	360			LRS2	sci							Yes
virus0000014_02	QID 1985	10:26	360	1.0	UT26-1-008	VIRUS	sci	1.70		22.14	0.81			Yes
lrs20000013_03	parallel	10:33	360			LRS2	sci							Yes
virus0000014_03	QID 1985	10:33	360	1.0	UT26-1-008	VIRUS	sci	1.73		22.11	0.81			Yes
lrs20000014_01	bias	10:42	0			LRS2	cal							Yes
virus0000015_01	bias	10:42	0			VIRUS	cal							Yes
0030	LFC Cal	10:48	106.5			HPF	cal							Yes
lrs20000015_01	parallel	10:48	360			LRS2	sci							Yes
virus0000016_01	QID 352	10:48	360	6.0	UT26-1-008	VIRUS	sci	1.60		21.92	0.77			Yes
0031	LFC Cal	10:50	106.5			HPF	cal							Yes
lrs20000015_02	parallel	10:55	360			LRS2	sci							Yes
virus0000016_02	QID 352	10:55	360	1.0	UT26-1-008	VIRUS	sci	1.73		21.93	0.80			Yes
lrs20000015_03	parallel	11:02	360			LRS2	sci							Yes
virus0000016_03	QID 352	11:02	360	1.0	UT26-1-008	VIRUS	sci	1.73		21.94	0.79			Yes
virus0000017_01	parallel	11:13	1728			VIRUS	sci							Yes
0032	LFC Cal	11:14	106.5			HPF	cal							Yes
lrs20000016_01	QID 2559	11:14	1728	5.2	M26-1-005	LRS2-R	sci	1.73		20.87	1.11			Yes
0033	LFC Cal	11:16	106.5			HPF	cal							Yes
0034	LFC Cal	11:18	106.5			HPF	cal							Yes
0035	QID 2746	11:49	42.6	7.3	UT26-1-014	HPF	sci	2.00		20.22	0.90	496		Yes
0036	LFC Cal	11:51	106.5			HPF	cal							Yes
0037	GJ_1214	11:57	969.1	6.8	ENG26-1-000	HPF	eng	2.17		20.17	0.87	99		Yes
virus0000018_01	parallel	11:57	2047			VIRUS	eng							Yes
0038	GJ_1214	12:14	969.1	0.8	ENG26-1-000	HPF	eng	2.20		19.95	1.00	118		Yes
0039	LFC Cal	12:32	106.5			HPF	cal							Yes
lrs20000017_01	bias	12:33	0			LRS2	cal							Yes
virus0000019_01	bias	12:33	0			VIRUS	cal							Yes
virus0000020_01	Cd-A	12:38	15		ENG26-1-002	VIRUS	cal							Yes
virus0000021_01	Hg	12:39	15		ENG26-1-002	VIRUS	cal							Yes
0040	Dark	12:47	319.5			HPF	cal							Yes
0041	Quartz FCU	12:58	74.5			HPF	cal							Yes
0042	Quartz FCU	13:00	74.5			HPF	cal							Yes
0043	Quartz FCU	13:02	74.5			HPF	cal							Yes
0044	Quartz FCU	13:04	74.5			HPF	cal							Yes
0045	Quartz FCU	13:06	74.5			HPF	cal							Yes
0046	Quartz FCU	13:07	74.5			HPF	cal							Yes
0047	Quartz FCU	13:09	74.5			HPF	cal							Yes
0048	Alpha Bright Cal	13:11	85.2			HPF	cal							Yes
0049	Alpha Bright Cal	13:13	85.2			HPF	cal							Yes
0050	Alpha Bright Cal	13:15	85.2			HPF	cal							Yes
0051	Alpha Bright Cal	13:17	85.2			HPF	cal							Yes
0052	LFC FCU	13:20	106.5			HPF	cal							Yes
0053	LFC FCU	13:22	106.5			HPF	cal							Yes
0054	LFC FCU	13:25	106.5			HPF	cal							Yes
0055	LFC FCU	13:27	106.5			HPF	cal							Yes
0056	LFC FCU	13:29	106.5			HPF	cal							Yes
0057	LFC FCU	13:31	106.5			HPF	cal							Yes
0058	LFC Cal	13:34	106.5			HPF	cal							Yes
0059	LFC Cal	13:37	106.5			HPF	cal							Yes
0060	Etalon Cal	13:44	159.8			HPF	cal							Yes
0061	Etalon Cal	13:48	159.8			HPF	cal							Yes
0062	Etalon Cal	13:51	159.8			HPF	cal							Yes
0063	Etalon Cal	13:54	159.8			HPF	cal							Yes
0064	UNe Slave Cal	13:58	426			HPF	cal							Yes
0065	UNe Slave Cal	14:05	426			HPF	cal							Yes
0066	UNe Slave Cal	14:13	426			HPF	cal							Yes
0067	UNe Slave Cal	14:21	426			HPF	cal							Yes
0068	UNe Slave Cal	14:29	426			HPF	cal							Yes
0069	UNe Slave Cal	14:36	426			HPF	cal							Yes
lrs20009900_01	bias	22:26	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:27	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	22:33	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:34	15			LRS2	cal							Yes
0084	LFC Cal	22:38	106.5			HPF	cal							Yes
0085	Dark	22:41	319.5			HPF	cal							Yes
0086	Quartz FCU	22:48	74.5			HPF	cal							Yes
0087	Quartz FCU	22:49	74.5			HPF	cal							Yes
0088	Quartz FCU	22:51	74.5			HPF	cal							Yes
0089	Quartz FCU	22:53	74.5			HPF	cal							Yes
0090	Quartz FCU	22:55	74.5			HPF	cal							Yes
0091	Quartz FCU	22:57	74.5			HPF	cal							Yes
0092	Quartz FCU	22:58	74.5			HPF	cal							Yes
0093	Alpha Bright Cal	23:01	85.2			HPF	cal							Yes
0094	Alpha Bright Cal	23:03	85.2			HPF	cal							Yes
0095	Alpha Bright Cal	23:05	85.2			HPF	cal							Yes
0096	Alpha Bright Cal	23:07	85.2			HPF	cal							Yes
0097	LFC FCU	23:09	106.5			HPF	cal							Yes
0098	LFC FCU	23:12	106.5			HPF	cal							Yes
0099	LFC Cal	23:14	106.5			HPF	cal							Yes
0100	LFC Cal	23:16	106.5			HPF	cal							Yes
0101	Etalon Cal	23:19	159.8			HPF	cal							Yes
0102	UNe Slave Cal	23:23	426			HPF	cal							Yes
lrs20000017_01	flat_Qth_R	23:24	15			LRS2	cal							Yes
lrs20000017_02	flat_Qth_R	23:25	15			LRS2	cal							Yes
lrs20000017_03	flat_Qth_R	23:27	15			LRS2	cal							Yes
lrs20000017_04	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000017_05	flat_Qth_R	23:29	15			LRS2	cal							Yes
lrs20000018_01	flat_ldls_long_B	23:30	20			LRS2	cal							Yes
0103	UNe Slave Cal	23:31	426			HPF	cal							Yes
lrs20000018_02	flat_ldls_long_B	23:32	20			LRS2	cal							Yes
lrs20000018_03	flat_ldls_long_B	23:33	20			LRS2	cal							Yes
lrs20000019_01	Cd-A_B	23:34	29			LRS2	cal							Yes
lrs20000019_02	Cd-A_B	23:36	29			LRS2	cal							Yes
lrs20000019_03	Cd-A_B	23:37	29			LRS2	cal							Yes
0104	UNe Slave Cal	23:38	426			HPF	cal							Yes
lrs20000020_01	FeAr_R	23:39	15			LRS2	cal							Yes
lrs20000020_02	FeAr_R	23:40	15			LRS2	cal							Yes
lrs20000020_03	FeAr_R	23:41	15			LRS2	cal							Yes
lrs20000021_01	Hg_R	23:42	20			LRS2	cal							Yes
lrs20000021_02	Hg_R	23:44	20			LRS2	cal							Yes
lrs20000021_03	Hg_R	23:45	20			LRS2	cal							Yes
0105	UNe Slave Cal	23:46	426			HPF	cal							Yes
lrs20000022_01	Hg_B	23:46	15			LRS2	cal							Yes
lrs20000022_02	Hg_B	23:47	15			LRS2	cal							Yes
lrs20000022_03	Hg_B	23:49	15			LRS2	cal							Yes
0106	UNe Slave Cal	23:54	426			HPF	cal							Yes
virus0000033_01	flat_ldls_long	23:55	15			VIRUS	cal							Yes
virus0000033_02	flat_ldls_long	23:57	15			VIRUS	cal							Yes
virus0000033_03	flat_ldls_long	23:58	15			VIRUS	cal							Yes
virus0000034_01	Cd-A	23:59	15			VIRUS	cal							Yes