HET Night Report Reader

Civil Date	Ephemerides
2026-05-07	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:46	02:35	03:08	10:36	11:09	11:59	07:05	-
Night Length	7:28		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Zach Vanderbosch	Amy Westfall	-	-

Overlaps		none

Other Personnel	Herman Kriel

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:43	13.1	13.7	02:47	clouds	01:04
05:05	15.2	13.9	11:09	twilight	06:04
Total Time Open					7:08

Program	Night Priority	Science
03:08	Idle due to weather (Radar, clouds)
05:41	Science
08:24	Idle due to weather (Clouds)
08:29	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
05:07	05:41	0.47	0.75	-380	+3545	16.3	14.7	14.5	10	4	First of Night
11:02	11:08	0.48	0.73	-520	+3545	14.7	14.9	14.5	66	12	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6316	05:00-05:00	00:00	Cloud Cam/Meter Not Showing in Weather Gui after planned power outage
6674	02:00-02:47	00:47	Homing MARS actuators caused mechanical issue with MARS X stage that required work in CCAS tower

Ops Comments	none

TO Comments	Some interruptions by clouds, and some radar in county during night. Stable temperature.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20009900_01	bias	00:10	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	00:10	20			VIRUS	cal							Yes
virus0009901_01	bias	00:12	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	00:12	20			LRS2	cal							Yes
virus0009902_01	dark	00:14	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	00:15	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	00:16	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	00:18	15			LRS2	cal							Yes
0001	Dark	00:30	319.5			HPF	cal							Yes
0002	Quartz FCU	00:36	74.5			HPF	cal							Yes
0003	Quartz FCU	00:38	74.5			HPF	cal							Yes
0004	Quartz FCU	00:40	74.5			HPF	cal							Yes
0005	Quartz FCU	00:42	74.5			HPF	cal							Yes
0006	Quartz FCU	00:43	74.5			HPF	cal							Yes
0007	Quartz FCU	00:45	74.5			HPF	cal							Yes
0008	Quartz FCU	00:47	74.5			HPF	cal							Yes
0009	Alpha Bright Cal	00:49	85.2			HPF	cal							Yes
0010	Alpha Bright Cal	00:51	85.2			HPF	cal							Yes
0011	Alpha Bright Cal	00:53	85.2			HPF	cal							Yes
0012	Alpha Bright Cal	00:55	85.2			HPF	cal							Yes
0013	LFC FCU	00:58	106.5			HPF	cal							Yes
0014	LFC FCU	01:00	106.5			HPF	cal							Yes
0015	LFC Cal	01:03	106.5			HPF	cal							Yes
0016	LFC Cal	01:05	106.5			HPF	cal							Yes
0017	Etalon Cal	01:08	159.8			HPF	cal							Yes
0018	UNe Slave Cal	01:12	426			HPF	cal							Yes
lrs20000001_01	bias	01:12	0			LRS2	cal							Yes
virus0000001_01	bias	01:12	0			VIRUS	cal							Yes
lrs20000001_02	bias	01:13	0			LRS2	cal							Yes
lrs20000001_03	bias	01:13	0			LRS2	cal							Yes
virus0000001_02	bias	01:13	0			VIRUS	cal							Yes
virus0000001_03	bias	01:14	0			VIRUS	cal							Yes
lrs20000001_04	bias	01:14	0			LRS2	cal							Yes
virus0000001_04	bias	01:14	0			VIRUS	cal							Yes
lrs20000001_05	bias	01:15	0			LRS2	cal							Yes
virus0000001_05	bias	01:15	0			VIRUS	cal							Yes
lrs20000001_06	bias	01:16	0			LRS2	cal							Yes
virus0000001_06	bias	01:16	0			VIRUS	cal							Yes
lrs20000001_07	bias	01:17	0			LRS2	cal							Yes
virus0000001_07	bias	01:17	0			VIRUS	cal							Yes
lrs20000001_08	bias	01:18	0			LRS2	cal							Yes
virus0000001_08	bias	01:18	0			VIRUS	cal							Yes
lrs20000001_09	bias	01:18	0			LRS2	cal							Yes
virus0000001_09	bias	01:19	0			VIRUS	cal							Yes
lrs20000001_10	bias	01:19	0			LRS2	cal							Yes
0019	UNe Slave Cal	01:19	426			HPF	cal							Yes
virus0000001_10	bias	01:20	0			VIRUS	cal							Yes
lrs20000001_11	bias	01:20	0			LRS2	cal							Yes
virus0000001_11	bias	01:20	0			VIRUS	cal							Yes
lrs20000002_01	dark	01:21	360			LRS2	cal							Yes
virus0000002_01	dark	01:21	360			VIRUS	cal							Yes
0020	UNe Slave Cal	01:27	426			HPF	cal							Yes
lrs20000002_02	dark	01:28	360			LRS2	cal							Yes
virus0000002_02	dark	01:28	360			VIRUS	cal							Yes
0021	UNe Slave Cal	01:35	426			HPF	cal							Yes
lrs20000002_03	dark	01:35	360			LRS2	cal							Yes
virus0000002_03	dark	01:35	360			VIRUS	cal							Yes
0022	UNe Slave Cal	01:43	426			HPF	cal							Yes
0023	UNe Slave Cal	01:51	426			HPF	cal							Yes
lrs20000003_01	skyflat	01:51	7			LRS2	cal							Yes
lrs20000004_01	skyflat	01:52	10			LRS2	cal							Yes
lrs20000005_01	skyflat	01:54	13			LRS2	cal							Yes
lrs20000006_01	skyflat	01:55	16			LRS2	cal							Yes
lrs20000007_01	skyflat	01:56	22			LRS2	cal							Yes
lrs20000008_01	skyflat	01:57	30			LRS2	cal							Yes
virus0000003_01	skyflat	02:00	7			VIRUS	cal							Yes
virus0000004_01	skyflat	02:02	10			VIRUS	cal							Yes
virus0000005_01	skyflat	02:03	14			VIRUS	cal							Yes
virus0000006_01	skyflat	02:04	18			VIRUS	cal							Yes
virus0000007_01	skyflat	02:06	26			VIRUS	cal							Yes
lrs20000009_01	flat_Qth_R	02:08	15			LRS2	cal							Yes
lrs20000009_02	flat_Qth_R	02:10	15			LRS2	cal							Yes
lrs20000009_03	flat_Qth_R	02:11	15			LRS2	cal							Yes
lrs20000009_04	flat_Qth_R	02:12	15			LRS2	cal							Yes
lrs20000009_05	flat_Qth_R	02:14	15			LRS2	cal							Yes
lrs20000010_01	flat_ldls_long_B	02:15	20			LRS2	cal							Yes
lrs20000010_02	flat_ldls_long_B	02:16	20			LRS2	cal							Yes
lrs20000010_03	flat_ldls_long_B	02:17	20			LRS2	cal							Yes
lrs20000011_01	Cd-A_B	02:19	29			LRS2	cal							Yes
lrs20000011_02	Cd-A_B	02:20	29			LRS2	cal							Yes
lrs20000011_03	Cd-A_B	02:22	29			LRS2	cal							Yes
lrs20000012_01	FeAr_R	02:23	15			LRS2	cal							Yes
lrs20000012_02	FeAr_R	02:24	15			LRS2	cal							Yes
lrs20000012_03	FeAr_R	02:26	15			LRS2	cal							Yes
lrs20000013_01	Hg_R	02:27	20			LRS2	cal							Yes
lrs20000013_02	Hg_R	02:28	20			LRS2	cal							Yes
lrs20000013_03	Hg_R	02:30	20			LRS2	cal							Yes
lrs20000014_01	Hg_B	02:31	15			LRS2	cal							Yes
lrs20000014_02	Hg_B	02:32	15			LRS2	cal							Yes
lrs20000014_03	Hg_B	02:33	15			LRS2	cal							Yes
virus0000008_01	flat_ldls_long	02:40	15			VIRUS	cal							Yes
virus0000008_02	flat_ldls_long	02:42	15			VIRUS	cal							Yes
virus0000008_03	flat_ldls_long	02:43	15			VIRUS	cal							Yes
virus0000009_01	Cd-A	02:44	15			VIRUS	cal							Yes
virus0000009_02	Cd-A	02:46	15			VIRUS	cal							Yes
virus0000009_03	Cd-A	02:47	15			VIRUS	cal							Yes
virus0000010_01	Hg	02:49	15			VIRUS	cal							Yes
virus0000010_02	Hg	02:50	15			VIRUS	cal							Yes
virus0000010_03	Hg	02:52	15			VIRUS	cal							Yes
0024	LFC Cal	04:01	106.5			HPF	cal							Yes
0025	LFC Cal	04:03	106.5			HPF	cal							Yes
0026	LFC Cal	04:05	106.5			HPF	cal							Yes
0027	LFC Cal	04:51	106.5			HPF	cal							Yes
0028	LFC Cal	04:53	106.5			HPF	cal							Yes
0029	LFC Cal	04:56	106.5			HPF	cal							Yes
0030	LFC Cal	05:46	106.5			HPF	cal							Yes
virus0000011_01	parallel	05:46	600			VIRUS	sci							Yes
lrs20000015_01	QID 19	05:46	600	5.0	PSU26-2-012	LRS2-B	sci	1.95		21.80	0.90			Yes
0031	LFC Cal	05:48	106.5			HPF	cal							Yes
0032	LFC Cal	05:50	106.5			HPF	cal							Yes
0033	LFC Cal	06:01	106.5			HPF	cal							Yes
lrs20000016_01	parallel	06:01	360			LRS2	sci							Yes
virus0000012_01	QID 554	06:01	360	5.0	UT26-2-016	VIRUS	sci	1.72		21.95	0.90			Yes
0034	LFC Cal	06:04	106.5			HPF	cal							Yes
lrs20000016_02	parallel	06:08	360			LRS2	sci							Yes
virus0000012_02	QID 554	06:08	360	1.0	UT26-2-016	VIRUS	sci	1.69		21.95	0.89			Yes
lrs20000016_03	parallel	06:16	360			LRS2	sci							Yes
virus0000012_03	QID 554	06:16	360	2.0	UT26-2-016	VIRUS	sci	1.63		21.96	0.86			Yes
0035	LFC Cal	06:26	106.5			HPF	cal							Yes
lrs20000017_01	parallel	06:26	360			LRS2	sci							Yes
virus0000013_01	QID 558	06:26	360	4.0	UT26-2-016	VIRUS	sci	1.76		21.79	0.90			Yes
0036	LFC Cal	06:28	106.5			HPF	cal							Yes
lrs20000017_02	parallel	06:33	360			LRS2	sci							Yes
virus0000013_02	QID 558	06:33	360	1.0	UT26-2-016	VIRUS	sci	1.76		21.70	0.93			Yes
lrs20000017_03	parallel	06:40	360			LRS2	sci							Yes
virus0000013_03	QID 558	06:40	360	1.0	UT26-2-016	VIRUS	sci	1.79		21.59	0.99			Yes
virus0000014_01	HZ21_034_W	06:51	60	5.0		VIRUS	spec	1.54		21.91	0.77			Yes
virus0000014_02	HZ21_034_W	06:53	60	1.0		VIRUS	spec	1.54		21.87	0.79			Yes
virus0000014_03	HZ21_034_W	06:55	60	1.0		VIRUS	spec	1.45		21.84	0.77			Yes
lrs20000018_01	BD+601753_056_E	07:02	30	5.5		LRS2	spec	1.72		21.68	0.87			Yes
lrs20000019_01	BD+601753_066_E	07:06	30	3.5		LRS2	spec	1.61		20.88	0.95			Yes
0037	LFC Cal	07:08	106.5			HPF	cal							Yes
virus0000015_01	parallel	07:12	1959			VIRUS	sci							Yes
0038	QID 478	07:13	915.9	6.7	G26-2-002	HPF	sci	1.63		20.21	0.74	40		Yes
0039	QID 478	07:29	915.9	0.7	G26-2-002	HPF	sci	1.73		20.10	0.72	32		Yes
0040	LFC Cal	07:46	106.5			HPF	cal							Yes
0041	QID 807	07:51	969.1	6.8	PSU26-2-015	HPF	sci	1.64		20.14	0.90	111		Yes
virus0000016_01	parallel	07:51	2047			VIRUS	sci							Yes
0042	QID 807	08:08	969.1	0.8	PSU26-2-015	HPF	sci	1.83		20.11	0.96	111		Yes
0043	LFC Cal	08:26	106.5			HPF	cal							Yes
0044	QID 859	08:36	926.6	7.6	UT26-2-009	HPF	sci	1.44		19.73	0.89	103		Yes
virus0000017_01	parallel	08:36	1959			VIRUS	sci							Yes
0045	QID 859	08:53	926.6	0.6	UT26-2-009	HPF	sci	1.38		19.88	0.71	84		Yes
0046	HR7734_tell_std	09:16	330.2	8.5		HPF	telluric	1.31		19.94	0.74			Yes
0047	LFC Cal	09:28	106.5			HPF	cal							Yes
virus0000018_01	parallel	09:28	4500			VIRUS	sci							Yes
lrs20000020_01	QID 542	09:28	4500	6.0	UT26-2-013	LRS2-B	sci	1.41		20.52	0.83			Yes
0048	LFC Cal	09:30	106.5			HPF	cal							Yes
0049	LFC Cal	09:33	106.5			HPF	cal							Yes
0050	QID 181	10:50	170.4	7.2	UT26-2-011	HPF	sci	1.45		18.83	0.91	406		Yes
lrs20000021_01	QID 668	10:59	90	6.5	PSU26-2-004	LRS2-B	sci	1.40		19.68	0.85			Yes
lrs20000022_01	bias	11:03	0			LRS2	cal							Yes
virus0000019_01	bias	11:04	0			VIRUS	cal							Yes
virus0000020_01	Cd-A	11:08	15		ENG26-2-002	VIRUS	cal							Yes
virus0000021_01	Hg	11:09	15		ENG26-2-002	VIRUS	cal							Yes
0051	Dark	11:17	319.5			HPF	cal							Yes
0052	Quartz FCU	11:29	74.5			HPF	cal							Yes
0053	Quartz FCU	11:31	74.5			HPF	cal							Yes
0054	Quartz FCU	11:32	74.5			HPF	cal							Yes
0055	Quartz FCU	11:34	74.5			HPF	cal							Yes
0056	Quartz FCU	11:36	74.5			HPF	cal							Yes
0057	Quartz FCU	11:38	74.5			HPF	cal							Yes
0058	Quartz FCU	11:39	74.5			HPF	cal							Yes
0059	Alpha Bright Cal	11:42	85.2			HPF	cal							Yes
0060	Alpha Bright Cal	11:44	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	11:46	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	11:48	85.2			HPF	cal							Yes
0063	LFC FCU	11:50	106.5			HPF	cal							Yes
0064	LFC FCU	11:53	106.5			HPF	cal							Yes
0065	LFC FCU	11:55	106.5			HPF	cal							Yes
0066	LFC FCU	11:57	106.5			HPF	cal							Yes
0067	LFC FCU	12:00	106.5			HPF	cal							Yes
0068	LFC FCU	12:02	106.5			HPF	cal							Yes
0069	LFC Cal	12:05	106.5			HPF	cal							Yes
0070	LFC Cal	12:07	106.5			HPF	cal							Yes
0071	Etalon Cal	12:15	159.8			HPF	cal							Yes
0072	Etalon Cal	12:18	159.8			HPF	cal							Yes
0073	Etalon Cal	12:21	159.8			HPF	cal							Yes
0074	Etalon Cal	12:25	159.8			HPF	cal							Yes
0075	UNe Slave Cal	12:28	426			HPF	cal							Yes
0076	UNe Slave Cal	12:36	426			HPF	cal							Yes
0077	UNe Slave Cal	12:44	426			HPF	cal							Yes
0078	UNe Slave Cal	12:51	426			HPF	cal							Yes
0079	UNe Slave Cal	12:59	426			HPF	cal							Yes
0080	UNe Slave Cal	13:07	426			HPF	cal							Yes
0057	LFC Cal	22:47	106.5			HPF	cal							Yes

Previous Day:		May 07, 2026 Civil		Next Day:
HET Night Report	VIRUS Biases	VIRUS Biases	LRS2 Biases	HET Night Report	VIRUS Biases
LRS2 Biases	EON Charts	EON Charts		LRS2 Biases	EON Charts