HET Night Report Reader

Civil Date	Ephemerides
2026-02-06	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:44	01:30	01:58	12:21	12:49	13:36	05:40	-
Night Length	10:23		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator
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
00:41			12:54	twilight	12:13
Total Time Open					12:13

Program	Night Priority	Science
01:58	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:10	01:45	0.71	1.17	100	-4858	12.7	13.2	13.1	73	8	First of Night
12:47	12:53	0.68	1.10	-100	-2748	12.9	12.4	12.3	191	8	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6604	01:46-01:52	00:06	Probe sanity check error while moving to trajectory. We abandoned the target and moved on.

TO Comments	Clear and calm with 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
virus0000026_01	Cd-A	00:00	15			VIRUS	cal							Yes
virus0000026_02	Cd-A	00:02	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:03	426			HPF	cal							Yes
virus0000026_03	Cd-A	00:03	15			VIRUS	cal							Yes
virus0000027_01	Hg	00:05	15			VIRUS	cal							Yes
virus0000027_02	Hg	00:06	15			VIRUS	cal							Yes
virus0000027_03	Hg	00:07	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:09	360			LRS2	cal							Yes
virus0000001_01	dark	00:09	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:15	360			LRS2	cal							Yes
virus0000001_02	dark	00:16	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:22	360			LRS2	cal							Yes
virus0000001_03	dark	00:22	360			VIRUS	cal							Yes
0002	twilight	00:41	298.2			HPF	cal					444		Yes
lrs20000002_01	skyflat	00:48	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:49	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:51	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:52	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:53	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:54	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:57	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:58	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:59	14			VIRUS	cal							Yes
virus0000005_01	skyflat	01:01	18			VIRUS	cal							Yes
virus0000006_01	skyflat	01:02	26			VIRUS	cal							Yes
lrs20000008_01	bias	01:15	0			LRS2	cal							Yes
virus0000007_01	bias	01:15	0			VIRUS	cal							Yes
lrs20000008_02	bias	01:16	0			LRS2	cal							Yes
virus0000007_02	bias	01:16	0			VIRUS	cal							Yes
lrs20000008_03	bias	01:17	0			LRS2	cal							Yes
virus0000007_03	bias	01:17	0			VIRUS	cal							Yes
lrs20000008_04	bias	01:18	0			LRS2	cal							Yes
virus0000007_04	bias	01:18	0			VIRUS	cal							Yes
lrs20000008_05	bias	01:19	0			LRS2	cal							Yes
virus0000007_05	bias	01:19	0			VIRUS	cal							Yes
lrs20000008_06	bias	01:20	0			LRS2	cal							Yes
virus0000007_06	bias	01:20	0			VIRUS	cal							Yes
lrs20000008_07	bias	01:20	0			LRS2	cal							Yes
virus0000007_07	bias	01:21	0			VIRUS	cal							Yes
lrs20000008_08	bias	01:21	0			LRS2	cal							Yes
virus0000007_08	bias	01:22	0			VIRUS	cal							Yes
lrs20000008_09	bias	01:22	0			LRS2	cal							Yes
virus0000007_09	bias	01:22	0			VIRUS	cal							Yes
lrs20000008_10	bias	01:23	0			LRS2	cal							Yes
virus0000007_10	bias	01:23	0			VIRUS	cal							Yes
lrs20000008_11	bias	01:24	0			LRS2	cal							Yes
virus0000007_11	bias	01:24	0			VIRUS	cal							Yes
0003	HR2585_tell_std	02:00	117.2	6.0		HPF	telluric	1.71	1.03	20.60	0.70			Yes
lrs20000009_01	parallel	02:05	360			LRS2	sci							Yes
virus0000008_01	QID 362	02:05	360	3.0	UT26-1-008	VIRUS	sci	1.68	1.27	21.79	0.85			Yes
0004	LFC Cal	02:06	106.5			HPF	cal							Yes
0005	LFC Cal	02:08	106.5			HPF	cal							Yes
lrs20000009_02	parallel	02:13	360			LRS2	sci							Yes
virus0000008_02	QID 362	02:13	360	2.0	UT26-1-008	VIRUS	sci	1.62	1.21	21.81	0.84			Yes
lrs20000009_03	parallel	02:20	360			LRS2	sci							Yes
virus0000008_03	QID 362	02:20	360	1.0	UT26-1-008	VIRUS	sci	1.62	1.06	21.82	0.84			Yes
0006	LFC Cal	02:32	106.5			HPF	cal							Yes
lrs20000010_01	parallel	02:32	360			LRS2	sci							Yes
virus0000009_01	QID 364	02:32	360	6.0	UT26-1-008	VIRUS	sci	1.51	1.20	21.68	0.76			Yes
0007	LFC Cal	02:35	106.5			HPF	cal							Yes
lrs20000010_02	parallel	02:39	360			LRS2	sci							Yes
virus0000009_02	QID 364	02:39	360	1.0	UT26-1-008	VIRUS	sci	1.49	1.16	21.60	0.83			Yes
lrs20000010_03	parallel	02:46	360			LRS2	sci							Yes
virus0000009_03	QID 364	02:46	360	1.0	UT26-1-008	VIRUS	sci	1.46	1.15	21.60	0.88			Yes
0008	LFC Cal	02:56	106.5			HPF	cal							Yes
lrs20000011_01	parallel	02:56	360			LRS2	sci							Yes
virus0000010_01	QID 368	02:56	360	4.0	UT26-1-008	VIRUS	sci	1.60	0.94	21.85	0.87			Yes
0009	LFC Cal	02:59	106.5			HPF	cal							Yes
lrs20000011_02	parallel	03:03	360			LRS2	sci							Yes
virus0000010_02	QID 368	03:03	360	1.0	UT26-1-008	VIRUS	sci	1.55	0.83	21.81	0.85			Yes
lrs20000011_03	parallel	03:11	360			LRS2	sci							Yes
virus0000010_03	QID 368	03:11	360	2.0	UT26-1-008	VIRUS	sci	1.59	1.47	21.76	0.89			Yes
0010	LFC Cal	03:21	106.5			HPF	cal							Yes
lrs20000012_01	parallel	03:21	450			LRS2	sci							Yes
virus0000011_01	QID 1206	03:21	450	4.5	M26-1-002	VIRUS	sci	1.91	1.15	21.56	0.98			Yes
0011	LFC Cal	03:24	106.5			HPF	cal							Yes
0012	LFC Cal	03:26	106.5			HPF	cal							Yes
lrs20000012_02	parallel	03:30	450			LRS2	sci							Yes
virus0000011_02	QID 1206	03:30	450	0.5	M26-1-002	VIRUS	sci	1.94	1.14	21.31	0.98			Yes
lrs20000012_03	parallel	03:39	450			LRS2	sci							Yes
virus0000011_03	QID 1206	03:39	450	1.5	M26-1-002	VIRUS	sci	1.85	1.32	21.37	0.98			Yes
0013	LFC Cal	03:50	106.5			HPF	cal							Yes
lrs20000013_01	parallel	03:50	450			LRS2	sci							Yes
virus0000012_01	QID 1205	03:50	450	3.5	M26-1-002	VIRUS	sci	2.00	1.10	21.54	0.96			Yes
0014	LFC Cal	03:52	106.5			HPF	cal							Yes
0015	LFC Cal	03:54	106.5			HPF	cal							Yes
lrs20000013_02	parallel	03:58	450			LRS2	sci							Yes
virus0000012_02	QID 1205	03:58	450	1.5	M26-1-002	VIRUS	sci	2.00	1.01	21.28	0.95			Yes
lrs20000013_03	parallel	04:07	450			LRS2	sci							Yes
virus0000012_03	QID 1205	04:07	450	1.5	M26-1-002	VIRUS	sci	1.85	1.04	21.34	0.93			Yes
0016	QID 1763	04:20	532.5	5.1	UT26-1-014	HPF	sci	1.77	1.07	20.57	0.97	440		Yes
virus0000013_01	parallel	04:20	583			VIRUS	sci							Yes
0017	LFC Cal	04:31	106.5			HPF	cal							Yes
virus0000014_01	parallel	04:35	1023			VIRUS	sci							Yes
0018	QID 1819	04:36	969.1	6.8	UT26-1-014	HPF	sci	1.45	1.27	20.61	0.83	307		Yes
0019	LFC Cal	04:54	106.5			HPF	cal							Yes
0020	LFC Cal	04:57	106.5			HPF	cal							Yes
lrs20000014_01	parallel	04:57	400			LRS2	sci							Yes
virus0000015_01	QID 2541	04:57	400	5.3	UT26-1-013	VIRUS	sci	1.65	1.21	21.78	0.84			Yes
0021	LFC Cal	04:59	106.5			HPF	cal							Yes
0022	LFC Cal	05:02	106.5			HPF	cal							Yes
lrs20000014_02	parallel	05:05	400			LRS2	sci							Yes
virus0000015_02	QID 2541	05:05	400	1.3	UT26-1-013	VIRUS	sci	1.75	1.34	21.77	0.80			Yes
lrs20000014_03	parallel	05:13	400			LRS2	sci							Yes
virus0000015_03	QID 2541	05:13	400	0.3	UT26-1-013	VIRUS	sci	1.73	1.04	21.80	0.82			Yes
0023	QID 2536	05:25	308.9	5.9	UT26-1-009	HPF	sci	1.69	0.82	20.38	0.88	99		Yes
virus0000016_01	parallel	05:25	1417			VIRUS	sci							Yes
0024	QID 2536	05:31	308.9	0.9	UT26-1-009	HPF	sci	1.65	0.96	20.34	0.91	106		Yes
0025	QID 2536	05:37	308.9	0.9	UT26-1-009	HPF	sci	1.58	0.88	20.21	0.91	117		Yes
0026	QID 2536	05:42	308.9	0.9	UT26-1-009	HPF	sci	1.61	0.92	20.16	0.90	120		Yes
0027	QID 1765	05:55	532.5	7.1	UT26-1-014	HPF	sci	1.53	0.98	20.32	0.70	456		P4
virus0000017_01	parallel	05:55	583			VIRUS	sci							Yes
0028	LFC Cal	06:06	106.5			HPF	cal							Yes
0029	QID 137	06:12	713.6	8.1	UT26-1-009	HPF	sci	1.63	0.88	20.13	1.00	94		P4
virus0000018_01	parallel	06:12	1541			VIRUS	sci							Yes
0030	QID 137	06:25	713.6	1.1	UT26-1-009	HPF	sci	1.51	0.96	20.03	0.98	86		P4
virus0000019_01	HZ21_034_E	06:45	60	8.0		VIRUS	spec	1.54	0.76	19.96	0.78			Yes
virus0000019_02	HZ21_034_E	06:48	60	2.0		VIRUS	spec	1.49	0.76	19.96	0.79			Yes
virus0000019_03	HZ21_034_E	06:50	60	1.0		VIRUS	spec	1.53	0.79	19.96	0.81			Yes
virus0000020_01	parallel	06:58	2047			VIRUS	sci							Yes
0031	QID 1460	06:59	969.1	7.8	UT26-1-010	HPF	sci	1.41	0.74	20.23	1.00	204		P4
0032	QID 1460	07:16	969.1	0.8	UT26-1-010	HPF	sci	1.39	0.65	20.21	0.96	192		P4
0033	LFC Cal	07:34	106.5			HPF	cal							Yes
0034	QID 1777	07:38	969.1	5.8	UT26-1-014	HPF	sci	1.34	0.63	20.21	0.98	541		Yes
virus0000021_01	parallel	07:38	1023			VIRUS	sci							Yes
0035	LFC Cal	07:56	106.5			HPF	cal							Yes
0036	QID 1784	08:02	969.1	7.8	UT26-1-014	HPF	sci	1.49	0.77	19.96	0.70	392		Yes
virus0000022_01	parallel	08:02	1023			VIRUS	sci							Yes
0037	LFC Cal	08:20	106.5			HPF	cal							Yes
virus0000023_01	parallel	08:26	891			VIRUS	sci							Yes
0038	QID 1770	08:27	841.4	9.0	UT26-1-014	HPF	sci	1.50	0.85	20.00	0.84	551		Yes
0039	LFC Cal	08:42	106.5			HPF	cal							Yes
virus0000024_01	parallel	08:54	1060			VIRUS	sci							Yes
0040	QID 321	08:55	308.9	13.9	UT26-1-007	HPF	sci	1.46		20.10	0.85	109		P4
0041	QID 321	09:00	308.9	0.9	UT26-1-007	HPF	sci	1.41		20.09	0.84	107		P4
0042	QID 321	09:06	308.9	-0.1	UT26-1-007	HPF	sci	1.38		20.08	0.85	100		P4
0043	QID 138	09:18	617.7	6.7	UT26-1-009	HPF	sci	1.41		20.02	0.92	156		P4
virus0000025_01	parallel	09:18	1321			VIRUS	sci							Yes
0044	QID 138	09:29	617.7	1.7	UT26-1-009	HPF	sci	1.43		19.99	0.92	144		P4
0045	QID 1821	09:48	969.1	7.8	UT26-1-014	HPF	sci	1.42		19.59	0.88	335		P4
virus0000026_01	parallel	09:48	1023			VIRUS	sci							Yes
0046	LFC Cal	10:06	106.5			HPF	cal							Yes
0047	LFC Cal	10:12	106.5			HPF	cal							Yes
virus0000027_01	parallel	10:12	3300			VIRUS	sci							Yes
lrs20000015_01	QID 11	10:12	3300	8.0	PSU26-1-009	LRS2-B	sci	1.28	0.79	19.60	0.82			P4
0048	LFC Cal	10:15	106.5			HPF	cal							Yes
0049	LFC Cal	10:17	106.5			HPF	cal							Yes
0050	QID 1962	11:13	969.1	5.8	UT26-1-010	HPF	sci	1.46	1.01	19.74	0.80	83		Yes
virus0000028_01	parallel	11:13	2047			VIRUS	sci							Yes
0051	QID 1962	11:30	969.1	1.8	UT26-1-010	HPF	sci	1.37	0.70	19.81	0.88	106		Yes
0052	LFC Cal	11:48	106.5			HPF	cal							Yes
lrs20000016_01	GRW+705824_056_E	11:53	180	6.0		LRS2	spec	1.41	0.71	20.26	0.66			Yes
0053	QID 1728	12:04	969.1	7.8	UT26-1-003	HPF	sci	1.37	0.68	18.63	0.94	32		Yes
virus0000029_01	parallel	12:04	2047			VIRUS	sci							Yes
0054	QID 1728	12:21	969.1	1.8	UT26-1-003	HPF	sci	1.25	0.71	18.27	1.00	28		Yes
0055	QID 1749	12:44	42.6	5.3	UT26-1-014	HPF	sci	1.22	0.72	18.30	0.83	727		Yes
0056	LFC Cal	12:46	106.5			HPF	cal							Yes
lrs20000017_01	bias	12:46	0			LRS2	cal							Yes
virus0000030_01	bias	12:47	0			VIRUS	cal							Yes
virus0000031_01	Cd-A	12:50	15		ENG26-1-002	VIRUS	cal							Yes
virus0000032_01	Hg	12:51	15		ENG26-1-002	VIRUS	cal							Yes
0057	Dark	13:00	319.5			HPF	cal							Yes
0058	Quartz FCU	13:12	74.5			HPF	cal							Yes
0059	Quartz FCU	13:14	74.5			HPF	cal							Yes
0060	Quartz FCU	13:15	74.5			HPF	cal							Yes
0061	Quartz FCU	13:17	74.5			HPF	cal							Yes
0062	Quartz FCU	13:19	74.5			HPF	cal							Yes
0063	Quartz FCU	13:21	74.5			HPF	cal							Yes
0064	Quartz FCU	13:22	74.5			HPF	cal							Yes
0065	Alpha Bright Cal	13:25	85.2			HPF	cal							Yes
0066	Alpha Bright Cal	13:27	85.2			HPF	cal							Yes
0067	Alpha Bright Cal	13:29	85.2			HPF	cal							Yes
0068	Alpha Bright Cal	13:31	85.2			HPF	cal							Yes
0069	LFC FCU	13:33	106.5			HPF	cal							Yes
0070	LFC FCU	13:36	106.5			HPF	cal							Yes
0071	LFC FCU	13:38	106.5			HPF	cal							Yes
0072	LFC FCU	13:40	106.5			HPF	cal							Yes
0073	LFC FCU	13:43	106.5			HPF	cal							Yes
0074	LFC FCU	13:45	106.5			HPF	cal							Yes
0075	LFC Cal	13:48	106.5			HPF	cal							Yes
0076	LFC Cal	13:50	106.5			HPF	cal							Yes
0077	Etalon Cal	13:58	159.8			HPF	cal							Yes
0078	Etalon Cal	14:01	159.8			HPF	cal							Yes
0079	Etalon Cal	14:04	159.8			HPF	cal							Yes
0080	Etalon Cal	14:07	159.8			HPF	cal							Yes
0081	UNe Slave Cal	14:11	426			HPF	cal							Yes
0082	UNe Slave Cal	14:19	426			HPF	cal							Yes
0083	UNe Slave Cal	14:27	426			HPF	cal							Yes
0084	UNe Slave Cal	14:34	426			HPF	cal							Yes
0085	UNe Slave Cal	14:42	426			HPF	cal							Yes
0086	UNe Slave Cal	14:50	426			HPF	cal							Yes
0096	LFC Cal	22:17	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:27	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:28	20			VIRUS	cal							Yes
virus0009901_01	bias	22:30	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:30	20			LRS2	cal							Yes
virus0009902_01	dark	22:32	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:32	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:34	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:35	15			LRS2	cal							Yes
0097	Dark	22:42	319.5			HPF	cal							Yes
0098	Quartz FCU	22:48	74.5			HPF	cal							Yes
0099	Quartz FCU	22:50	74.5			HPF	cal							Yes
0100	Quartz FCU	22:52	74.5			HPF	cal							Yes
0101	Quartz FCU	22:54	74.5			HPF	cal							Yes
0102	Quartz FCU	22:55	74.5			HPF	cal							Yes
0103	Quartz FCU	22:57	74.5			HPF	cal							Yes
0104	Quartz FCU	22:59	74.5			HPF	cal							Yes
0105	Alpha Bright Cal	23:01	85.2			HPF	cal							Yes
0106	Alpha Bright Cal	23:03	85.2			HPF	cal							Yes
0107	Alpha Bright Cal	23:05	85.2			HPF	cal							Yes
0108	Alpha Bright Cal	23:07	85.2			HPF	cal							Yes
0109	LFC FCU	23:10	106.5			HPF	cal							Yes
0110	LFC FCU	23:12	106.5			HPF	cal							Yes
0111	LFC Cal	23:15	106.5			HPF	cal							Yes
0112	LFC Cal	23:17	106.5			HPF	cal							Yes
0113	Etalon Cal	23:20	159.8			HPF	cal							Yes
0114	UNe Slave Cal	23:24	426			HPF	cal							Yes
lrs20000017_01	flat_Qth_R	23:25	15			LRS2	cal							Yes
lrs20000017_02	flat_Qth_R	23:26	15			LRS2	cal							Yes
lrs20000017_03	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000017_04	flat_Qth_R	23:29	15			LRS2	cal							Yes
lrs20000017_05	flat_Qth_R	23:30	15			LRS2	cal							Yes
0115	UNe Slave Cal	23:31	426			HPF	cal							Yes
lrs20000018_01	flat_ldls_long_B	23:31	20			LRS2	cal							Yes
lrs20000018_02	flat_ldls_long_B	23:33	20			LRS2	cal							Yes
lrs20000018_03	flat_ldls_long_B	23:34	20			LRS2	cal							Yes
lrs20000019_01	Cd-A_B	23:35	29			LRS2	cal							Yes
lrs20000019_02	Cd-A_B	23:37	29			LRS2	cal							Yes
lrs20000019_03	Cd-A_B	23:38	29			LRS2	cal							Yes
0116	UNe Slave Cal	23:39	426			HPF	cal							Yes
lrs20000020_01	FeAr_R	23:40	15			LRS2	cal							Yes
lrs20000020_02	FeAr_R	23:41	15			LRS2	cal							Yes
lrs20000020_03	FeAr_R	23:42	15			LRS2	cal							Yes
lrs20000021_01	Hg_R	23:43	20			LRS2	cal							Yes
lrs20000021_02	Hg_R	23:45	20			LRS2	cal							Yes
lrs20000021_03	Hg_R	23:46	20			LRS2	cal							Yes
0117	UNe Slave Cal	23:47	426			HPF	cal							Yes
lrs20000022_01	Hg_B	23:47	15			LRS2	cal							Yes
lrs20000022_02	Hg_B	23:49	15			LRS2	cal							Yes
lrs20000022_03	Hg_B	23:50	15			LRS2	cal							Yes
0118	UNe Slave Cal	23:55	426			HPF	cal							Yes
virus0000025_01	flat_ldls_long	23:56	15			VIRUS	cal							Yes
virus0000025_02	flat_ldls_long	23:58	15			VIRUS	cal							Yes
virus0000025_03	flat_ldls_long	23:59	15			VIRUS	cal							Yes