HET Night Report Reader

Civil Date	Ephemerides
2026-08-08	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	01:52	02:40	03:12	10:50	11:22	12:12	08:39	-
Night Length	7:38		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Sergey Rostopchin	Amy Westfall	-	-

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
01:45	23.4	22.9	11:30	twilight	09:45
Total Time Open					9:45

Program	Night Priority	Science
03:12	Science
05:23	Idle due to weather (IQ degradation)
06:41	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
02:19	02:48	0.39	0.61	-440	-465	22.3	23.0	23.0	112	14	First of Night
06:02	06:41					18.3	20.6	20.9	135	6	Stack/Re-stack
11:23	11:29	1.01	1.51	-530	+2068	18.1	19.6	19.8	176	6	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6554	02:50-02:55	00:05	HPFACQ not updating images	Restarted pas server
6703	11:06-11:12	00:06	Many "Timeout waiting for message help ID 1 ACK, spent 5.000085 seconds." errors tonight

Ops Comments	none

TO Comments	Clear and calm night. Some poor seeing caused by temperature drop and likely bad dome seeing.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	LFC Cal	00:10	106.5			HPF	cal							Yes
virus0009900_01	flat_Qth	00:14	20			VIRUS	cal							Yes
virus0009901_01	bias	00:16	0			VIRUS	cal							Yes
virus0009906_01	flat_Qth	00:20	20			VIRUS	cal							Yes
virus0009907_01	bias	00:21	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	00:23	20			LRS2	cal							Yes
virus0009908_01	dark	00:24	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	00:25	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	00:27	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	00:28	15			LRS2	cal							Yes
lrs20009909_01	bias	00:32	0			LRS2	cal							Yes
virus0009913_01	flat_Qth	00:33	20			VIRUS	cal							Yes
virus0009914_01	bias	00:34	0			VIRUS	cal							Yes
lrs20009910_01	flat_ldls_long_B	00:35	20			LRS2	cal							Yes
virus0009915_01	dark	00:36	15			VIRUS	cal							Yes
lrs20009911_01	Cd-A_B	00:37	29			LRS2	cal							Yes
lrs20009912_01	FeAr_R	00:39	15			LRS2	cal							Yes
lrs20009913_01	Hg_B	00:40	15			LRS2	cal							Yes
0002	Dark	00:45	319.5			HPF	cal							Yes
0003	Dark	00:52	319.5			HPF	cal							Yes
0004	Quartz FCU	00:59	74.5			HPF	cal							Yes
0005	Quartz FCU	01:01	74.5			HPF	cal							Yes
0006	Quartz FCU	01:02	74.5			HPF	cal							Yes
0007	Quartz FCU	01:04	74.5			HPF	cal							Yes
0008	Quartz FCU	01:06	74.5			HPF	cal							Yes
0009	Quartz FCU	01:08	74.5			HPF	cal							Yes
0010	Quartz FCU	01:09	74.5			HPF	cal							Yes
0011	Alpha Bright Cal	01:12	85.2			HPF	cal							Yes
0012	Alpha Bright Cal	01:14	85.2			HPF	cal							Yes
0013	Alpha Bright Cal	01:16	85.2			HPF	cal							Yes
0014	Alpha Bright Cal	01:18	85.2			HPF	cal							Yes
0015	LFC FCU	01:20	106.5			HPF	cal							Yes
0016	LFC FCU	01:23	106.5			HPF	cal							Yes
0017	LFC Cal	01:25	106.5			HPF	cal							Yes
0018	LFC Cal	01:28	106.5			HPF	cal							Yes
0019	Etalon Cal	01:30	159.8			HPF	cal							Yes
0020	twilight	01:49	298.2			HPF	cal					502		Yes
0021	UNe Slave Cal	01:57	426			HPF	cal							Yes
lrs20000001_01	skyflat	01:57	7			LRS2	cal							Yes
lrs20000002_01	skyflat	01:58	10			LRS2	cal							Yes
lrs20000003_01	skyflat	01:59	13			LRS2	cal							Yes
lrs20000004_01	skyflat	02:01	16			LRS2	cal							Yes
lrs20000005_01	skyflat	02:02	22			LRS2	cal							Yes
lrs20000006_01	skyflat	02:03	30			LRS2	cal							Yes
0022	UNe Slave Cal	02:05	426			HPF	cal							Yes
virus0000001_01	skyflat	02:06	7			VIRUS	cal							Yes
virus0000002_01	skyflat	02:08	10			VIRUS	cal							Yes
virus0000003_01	skyflat	02:09	14			VIRUS	cal							Yes
virus0000004_01	skyflat	02:10	18			VIRUS	cal							Yes
virus0000005_01	skyflat	02:12	26			VIRUS	cal							Yes
0023	UNe Slave Cal	02:13	426			HPF	cal							Yes
lrs20000007_01	flat_Qth_R	02:14	15			LRS2	cal							Yes
lrs20000007_02	flat_Qth_R	02:15	15			LRS2	cal							Yes
lrs20000007_03	flat_Qth_R	02:16	15			LRS2	cal							Yes
lrs20000007_04	flat_Qth_R	02:18	15			LRS2	cal							Yes
lrs20000007_05	flat_Qth_R	02:19	15			LRS2	cal							Yes
lrs20000008_01	flat_ldls_long_B	02:20	20			LRS2	cal							Yes
0024	UNe Slave Cal	02:21	426			HPF	cal							Yes
lrs20000008_02	flat_ldls_long_B	02:22	20			LRS2	cal							Yes
lrs20000008_03	flat_ldls_long_B	02:23	20			LRS2	cal							Yes
lrs20000009_01	Cd-A_B	02:24	29			LRS2	cal							Yes
lrs20000009_02	Cd-A_B	02:26	29			LRS2	cal							Yes
lrs20000009_03	Cd-A_B	02:27	29			LRS2	cal							Yes
0025	UNe Slave Cal	02:28	426			HPF	cal							Yes
lrs20000010_01	FeAr_R	02:29	15			LRS2	cal							Yes
lrs20000010_02	FeAr_R	02:30	15			LRS2	cal							Yes
lrs20000010_03	FeAr_R	02:31	15			LRS2	cal							Yes
lrs20000011_01	Hg_R	02:32	20			LRS2	cal							Yes
lrs20000011_02	Hg_R	02:34	20			LRS2	cal							Yes
lrs20000011_03	Hg_R	02:35	20			LRS2	cal							Yes
0026	UNe Slave Cal	02:36	426			HPF	cal							Yes
lrs20000012_01	Hg_B	02:36	15			LRS2	cal							Yes
lrs20000012_02	Hg_B	02:37	15			LRS2	cal							Yes
lrs20000012_03	Hg_B	02:39	15			LRS2	cal							Yes
0027	QID 816	02:59	138.5	10.7	PSU26-3-012	HPF	sci	1.40	0.93	20.23		423		Yes
virus0000006_01	parallel	02:59	2699.3			VIRUS	sci							Yes
0028	QID 816	03:02	138.5	0.7	PSU26-3-012	HPF	sci	1.43	0.98	20.22		410		Yes
0029	QID 816	03:05	138.5	0.7	PSU26-3-012	HPF	sci	1.48	0.99	20.27		403		Yes
0030	QID 816	03:08	138.5	0.7	PSU26-3-012	HPF	sci	1.49	1.23	20.29		400		Yes
0031	QID 816	03:11	138.5	0.7	PSU26-3-012	HPF	sci	1.63	1.27	20.28		396		Yes
0032	QID 816	03:14	138.5	0.7	PSU26-3-012	HPF	sci	1.70	1.10	20.27	0.89	365		Yes
0033	QID 816	03:17	138.5	0.7	PSU26-3-012	HPF	sci	1.84	1.15	20.23	0.88	357		Yes
0034	QID 816	03:19	138.5	0.7	PSU26-3-012	HPF	sci	1.85	1.31	20.20	0.88	348		Yes
0035	QID 816	03:22	138.5	0.7	PSU26-3-012	HPF	sci	1.79	1.25	20.19	0.89	362		Yes
0036	QID 816	03:25	138.5	0.7	PSU26-3-012	HPF	sci	1.64	1.12	20.18	0.89	374		Yes
0037	QID 816	03:28	138.5	-0.3	PSU26-3-012	HPF	sci	1.62	1.13	20.16	0.90	380		Yes
0038	QID 816	03:31	138.5	0.7	PSU26-3-012	HPF	sci	1.78	1.11	20.16	0.89	368		Yes
0039	QID 816	03:34	138.5	0.7	PSU26-3-012	HPF	sci	1.60	1.25	20.15	0.88	381		Yes
0040	QID 816	03:37	138.5	0.7	PSU26-3-012	HPF	sci	1.65	1.21	20.14	0.89	366		Yes
0041	QID 816	03:40	138.5	0.7	PSU26-3-012	HPF	sci	1.60	0.95	20.11	0.89	375		Yes
0042	LFC Cal	03:43	106.5			HPF	cal							Yes
0043	LFC Cal	03:49	106.5			HPF	cal							Yes
lrs20000013_01	parallel	03:49	1000			LRS2	sci							Yes
virus0000007_01	QID 166	03:49	1000	6.3	M26-3-003	VIRUS	sci	1.64	0.80	22.28	0.84			Yes
0044	LFC Cal	03:51	106.5			HPF	cal							Yes
0045	LFC Cal	03:54	106.5			HPF	cal							Yes
lrs20000013_02	parallel	04:07	1000			LRS2	sci							Yes
virus0000007_02	QID 166	04:07	1000	1.3	M26-3-003	VIRUS	sci	1.76	0.77	22.26	0.83			Yes
lrs20000013_03	parallel	04:24	1000			LRS2	sci							Yes
virus0000007_03	QID 166	04:25	1000	1.3	M26-3-003	VIRUS	sci	1.82	1.75	22.26	0.80			Yes
virus0000008_01	parallel	04:49	2000			VIRUS	sci							Yes
0046	QID 811	04:50	969.1	8.8	PSU26-3-012	HPF	sci	1.80	1.14	20.33	0.84	294		Yes
0047	QID 811	05:07	969.1	0.8	PSU26-3-012	HPF	sci	1.83	0.98	20.25	0.87	257		Yes
0048	LFC Cal	05:25	106.5			HPF	cal							Yes
virus0000009_01	parallel	05:28	318.4			VIRUS	sci							Yes
0049	QID 195	05:29	276.9	5.4	UT26-3-002	HPF	sci	2.11	1.26	20.20	0.89	355	sudden temp drop cause IQ degradation	No
0050	QID 194	05:40	372.8	6.8	UT26-3-002	HPF	sci	2.79	1.08	19.82	0.93	237		No
virus0000010_01	parallel	05:40	2071.3			VIRUS	sci							Yes
0051	QID 194	05:47	372.8	0.8	UT26-3-002	HPF	sci	2.77	0.90	19.96	0.90	246	sudden temp drop cause IQ degradation, aborted	No
0052	QID 194	05:54	372.8	0.8	UT26-3-002	HPF	sci	2.83	0.91	20.02	0.87	254		No
0053	QID 194	06:01	372.8	0.8	UT26-3-002	HPF	sci	2.83	0.99	20.06	0.85	35		No
lrs20000014_01	dark	06:09	360			LRS2	cal							Yes
virus0000011_01	dark	06:09	360			VIRUS	cal							Yes
lrs20000014_02	dark	06:15	360			LRS2	cal							Yes
virus0000011_02	dark	06:16	360			VIRUS	cal							Yes
lrs20000014_03	dark	06:22	360			LRS2	cal							Yes
virus0000011_03	dark	06:22	360			VIRUS	cal							Yes
lrs20000015_01	bias	06:30	0			LRS2	cal							Yes
virus0000012_01	bias	06:30	0			VIRUS	cal							Yes
lrs20000015_02	bias	06:31	0			LRS2	cal							Yes
lrs20000015_03	bias	06:31	0			LRS2	cal							Yes
virus0000012_02	bias	06:31	0			VIRUS	cal							Yes
virus0000012_03	bias	06:32	0			VIRUS	cal							Yes
lrs20000015_04	bias	06:32	0			LRS2	cal							Yes
lrs20000015_05	bias	06:33	0			LRS2	cal							Yes
virus0000012_04	bias	06:33	0			VIRUS	cal							Yes
virus0000012_05	bias	06:33	0			VIRUS	cal							Yes
lrs20000015_06	bias	06:34	0			LRS2	cal							Yes
virus0000012_06	bias	06:34	0			VIRUS	cal							Yes
lrs20000015_07	bias	06:35	0			LRS2	cal							Yes
virus0000012_07	bias	06:35	0			VIRUS	cal							Yes
lrs20000015_08	bias	06:36	0			LRS2	cal							Yes
virus0000012_08	bias	06:36	0			VIRUS	cal							Yes
lrs20000015_09	bias	06:37	0			LRS2	cal							Yes
virus0000012_09	bias	06:37	0			VIRUS	cal							Yes
lrs20000015_10	bias	06:37	0			LRS2	cal							Yes
lrs20000015_11	bias	06:38	0			LRS2	cal							Yes
virus0000012_10	bias	06:38	0			VIRUS	cal							Yes
virus0000012_11	bias	06:39	0			VIRUS	cal							Yes
virus0000013_01	parallel	06:49	2000			VIRUS	sci							Yes
0054	QID 804	06:50	969.1	8.8	PSU26-3-012	HPF	sci	2.10	0.93	20.39	0.82	90		Yes
0055	QID 804	07:07	969.1	0.8	PSU26-3-012	HPF	sci	2.19	0.82	20.34	0.79	86		Yes
0056	LFC Cal	07:25	106.5			HPF	cal							Yes
0057	LFC Cal	07:29	106.5			HPF	cal							Yes
lrs20000016_01	parallel	07:29	360			LRS2	sci							Yes
virus0000014_01	QID 824	07:29	360	6.0	UT26-3-014	VIRUS	sci	2.04	0.83	21.82	0.76			Yes
0058	LFC Cal	07:32	106.5			HPF	cal							Yes
lrs20000016_02	parallel	07:36	360			LRS2	sci							Yes
virus0000014_02	QID 824	07:36	360	1.0	UT26-3-014	VIRUS	sci	1.96	0.73	21.82	0.77			Yes
lrs20000016_03	parallel	07:43	360			LRS2	sci							Yes
virus0000014_03	QID 824	07:44	360	2.0	UT26-3-014	VIRUS	sci	2.00	0.78	21.82	0.76			Yes
0059	LFC Cal	07:54	106.5			HPF	cal							Yes
lrs20000017_01	parallel	07:54	360			LRS2	sci							Yes
virus0000015_01	QID 828	07:54	360	4.0	UT26-3-014	VIRUS	sci	2.18	0.90	21.80	0.82			Yes
0060	LFC Cal	07:57	106.5			HPF	cal							Yes
lrs20000017_02	parallel	08:01	360			LRS2	sci							Yes
virus0000015_02	QID 828	08:01	360	1.0	UT26-3-014	VIRUS	sci	2.09	0.83	21.81	0.81			Yes
lrs20000017_03	parallel	08:08	360			LRS2	sci							Yes
virus0000015_03	QID 828	08:08	360	1.0	UT26-3-014	VIRUS	sci	2.03	0.93	21.80	0.80			Yes
virus0000016_01	LDS749B_052_W	08:23	60	9.0		VIRUS	spec	1.91	1.04	21.91	0.76			Yes
virus0000016_02	LDS749B_052_W	08:25	60	1.0		VIRUS	spec	2.07	0.94	21.90	0.74			Yes
virus0000016_03	LDS749B_052_W	08:27	60	1.0		VIRUS	spec	1.88	0.92	21.89	0.72			Yes
0061	QID 104	08:37	937.2	9.4	UT26-3-004	HPF	sci	1.80		20.35	0.82	153		Yes
virus0000017_01	parallel	08:37	1957.4			VIRUS	sci							Yes
0062	QID 104	08:54	937.2	1.4	UT26-3-004	HPF	sci	1.76	0.81	20.21	0.84	132		Yes
0063	LFC Cal	09:16	106.5			HPF	cal							Yes
virus0000018_01	parallel	09:16	300			VIRUS	sci							Yes
lrs20000018_01	QID 22	09:16	300	6.0	PSU26-3-002	LRS2-R	sci	2.00	0.77	20.84	0.75			P4
0064	LFC Cal	09:19	106.5			HPF	cal							Yes
virus0000019_01	parallel	09:29	1500			VIRUS	sci							Yes
0065	LFC Cal	09:30	106.5			HPF	cal							Yes
lrs20000019_01	QID 205	09:30	1500	9.0	PSU26-3-003	LRS2-B	sci	2.31	0.83	21.46	0.53			Yes
0066	LFC Cal	09:32	106.5			HPF	cal							Yes
0067	LFC Cal	09:34	106.5			HPF	cal							Yes
virus0000019_02	parallel	09:56	1500			VIRUS	sci							Yes
lrs20000019_02	QID 205	09:56	1500	1.0	PSU26-3-003	LRS2-B	sci	2.20	0.85	21.40	0.61			Yes
virus0000020_01	parallel	10:27	1190.6			VIRUS	sci							Yes
0068	QID 182	10:28	553.8	6.8	UT26-3-002	HPF	sci	1.86	0.76	20.21	0.55	332		Yes
0069	QID 182	10:37	553.8	0.8	UT26-3-002	HPF	sci	1.98	0.84	20.18	0.60	365		Yes
0070	QID 183	10:55	404.7	8.3	UT26-3-002	HPF	sci	2.06	1.04	19.99	0.80	449		Yes
virus0000021_01	parallel	10:55	446.2			VIRUS	sci							Yes
lrs20000020_01	BD+210607_066_E	11:07	15	4.8		LRS2	spec	2.15	1.27	20.01	0.83			Yes
0071	HR1207_tell_std	11:18	117.2	11.0		HPF	telluric	2.33	1.06	18.97	0.69			Yes
lrs20000021_01	bias	11:21	0			LRS2	cal							Yes
virus0000022_01	bias	11:22	0			VIRUS	cal							Yes
virus0000023_01	Cd-A	11:23	15		ENG26-3-002	VIRUS	cal							Yes
virus0000024_01	Hg	11:25	15		ENG26-3-002	VIRUS	cal							Yes
0072	Dark	11:36	319.5			HPF	cal							Yes
0073	Quartz FCU	11:47	74.5			HPF	cal							Yes
0074	Quartz FCU	11:49	74.5			HPF	cal							Yes
0075	Quartz FCU	11:51	74.5			HPF	cal							Yes
0076	Quartz FCU	11:53	74.5			HPF	cal							Yes
0077	Quartz FCU	11:55	74.5			HPF	cal							Yes
0078	Quartz FCU	11:56	74.5			HPF	cal							Yes
0079	Quartz FCU	11:58	74.5			HPF	cal							Yes
0080	Alpha Bright Cal	12:00	85.2			HPF	cal							Yes
0081	Alpha Bright Cal	12:02	85.2			HPF	cal							Yes
0082	Alpha Bright Cal	12:04	85.2			HPF	cal							Yes
0083	Alpha Bright Cal	12:06	85.2			HPF	cal							Yes
0084	LFC FCU	12:09	106.5			HPF	cal							Yes
0085	LFC FCU	12:11	106.5			HPF	cal							Yes
0086	LFC FCU	12:14	106.5			HPF	cal							Yes
0087	LFC FCU	12:16	106.5			HPF	cal							Yes
0088	LFC FCU	12:18	106.5			HPF	cal							Yes
0089	LFC FCU	12:21	106.5			HPF	cal							Yes
0090	LFC Cal	12:24	106.5			HPF	cal							Yes
0091	LFC Cal	12:26	106.5			HPF	cal							Yes
0092	Etalon Cal	12:34	159.8			HPF	cal							Yes
virus0000025_01	flat_ldls_long	12:35	15			VIRUS	cal							Yes
0093	Etalon Cal	12:37	159.8			HPF	cal							Yes
virus0000025_02	flat_ldls_long	12:37	15			VIRUS	cal							Yes
virus0000025_03	flat_ldls_long	12:38	15			VIRUS	cal							Yes
virus0000026_01	Cd-A	12:39	15			VIRUS	cal							Yes
0094	Etalon Cal	12:40	159.8			HPF	cal							Yes
virus0000026_02	Cd-A	12:41	15			VIRUS	cal							Yes
virus0000026_03	Cd-A	12:42	15			VIRUS	cal							Yes
0095	Etalon Cal	12:43	159.8			HPF	cal							Yes
virus0000027_01	Hg	12:44	15			VIRUS	cal							Yes
virus0000027_02	Hg	12:45	15			VIRUS	cal							Yes
0096	UNe Slave Cal	12:47	426			HPF	cal							Yes
virus0000027_03	Hg	12:47	15			VIRUS	cal							Yes
0097	UNe Slave Cal	12:55	426			HPF	cal							Yes
0098	UNe Slave Cal	13:02	426			HPF	cal							Yes
0099	UNe Slave Cal	13:10	426			HPF	cal							Yes
0100	UNe Slave Cal	13:18	426			HPF	cal							Yes
0101	UNe Slave Cal	13:26	426			HPF	cal							Yes

Previous Day:		Aug 08, 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