HET Night Report Reader

Civil Date	Ephemerides
2025-12-25	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:09	00:58	01:27	12:25	12:55	13:44	-	05:23
Night Length	10:58		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
00:03	17.0	14.9	11:41	clouds	11:38
Total Time Open					11:38

Program	Night Priority	Science
01:27	Idle due to weather (overcast)
02:52	Science
09:52	Idle due to weather (clouds)
10:03	Science
10:10	Idle due to weather (clouds)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
00:35	01:03	0.46	0.69	-20	-3160	16.6	15.4	15.2	271	4	First of Night
11:34	11:40	0.37	0.60	35	-3160	14.0	14.1	14.1	313	16	Post-Observing

Problem Reports					no PRs

TO Comments	Clear and calm night with stable temperature, clouded out at EON.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	twilight	00:09	298.2			HPF	cal					315		Yes
lrs20000001_01	skyflat	00:15	7			LRS2	cal							Yes
lrs20000002_01	skyflat	00:16	10			LRS2	cal							Yes
lrs20000003_01	skyflat	00:17	13			LRS2	cal							Yes
lrs20000004_01	skyflat	00:18	16			LRS2	cal							Yes
lrs20000005_01	skyflat	00:19	22			LRS2	cal							Yes
lrs20000006_01	skyflat	00:21	30			LRS2	cal							Yes
virus0000001_01	skyflat	00:23	7			VIRUS	cal							Yes
virus0000002_01	skyflat	00:24	10			VIRUS	cal							Yes
virus0000003_01	skyflat	00:26	14			VIRUS	cal							Yes
virus0000004_01	skyflat	00:27	18			VIRUS	cal							Yes
virus0000005_01	skyflat	00:29	26			VIRUS	cal							Yes
lrs20000007_01	bias	00:30	0			LRS2	cal							Yes
virus0000006_01	bias	00:30	0			VIRUS	cal							Yes
lrs20000007_02	bias	00:31	0			LRS2	cal							Yes
virus0000006_02	bias	00:31	0			VIRUS	cal							Yes
lrs20000007_03	bias	00:32	0			LRS2	cal							Yes
virus0000006_03	bias	00:32	0			VIRUS	cal							Yes
lrs20000007_04	bias	00:32	0			LRS2	cal							Yes
virus0000006_04	bias	00:33	0			VIRUS	cal							Yes
lrs20000007_05	bias	00:33	0			LRS2	cal							Yes
virus0000006_05	bias	00:34	0			VIRUS	cal							Yes
lrs20000007_06	bias	00:34	0			LRS2	cal							Yes
virus0000006_06	bias	00:34	0			VIRUS	cal							Yes
lrs20000007_07	bias	00:35	0			LRS2	cal							Yes
virus0000006_07	bias	00:35	0			VIRUS	cal							Yes
lrs20000007_08	bias	00:36	0			LRS2	cal							Yes
virus0000006_08	bias	00:36	0			VIRUS	cal							Yes
lrs20000007_09	bias	00:37	0			LRS2	cal							Yes
virus0000006_09	bias	00:37	0			VIRUS	cal							Yes
lrs20000007_10	bias	00:38	0			LRS2	cal							Yes
virus0000006_10	bias	00:38	0			VIRUS	cal							Yes
lrs20000007_11	bias	00:39	0			LRS2	cal							Yes
virus0000006_11	bias	00:39	0			VIRUS	cal							Yes
0002	LFC Cal	00:51	106.5			HPF	cal							Yes
0003	LFC Cal	00:54	106.5			HPF	cal							Yes
0004	LFC Cal	00:56	106.5			HPF	cal							Yes
0005	QID 333	01:09	308.9	5.9	UT26-1-007	HPF	sci	1.32	0.71	19.13	0.11	25	clouds	No
virus0000007_01	parallel	01:09	1060			VIRUS	sci							Yes
0006	QID 333	01:15	308.9	-0.1	UT26-1-007	HPF	sci	1.32	0.88	19.15	0.10	39		No
0007	QID 333	01:21	308.9	0.9	UT26-1-007	HPF	sci	1.14		19.15	0.10	30		No
virus0000008_01	dark	01:36	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_02	dark	01:43	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_03	dark	01:50	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_04	dark	01:57	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_05	dark	02:04	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_06	dark	02:11	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_07	dark	02:18	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_08	dark	02:24	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_09	dark	02:31	360		ENG26-1-004	VIRUS	cal							Yes
virus0000008_10	dark	02:38	360		ENG26-1-004	VIRUS	cal							Yes
0008	LFC Cal	02:57	106.5			HPF	cal							Yes
virus0000009_01	parallel	02:57	300			VIRUS	sci							Yes
lrs20000008_01	QID 450	02:57	300	5.0	PSU26-1-014	LRS2-B	sci	1.54		20.93	0.48			P4
0009	LFC Cal	02:59	106.5			HPF	cal							Yes
0010	QID 1095	03:10	74.5	7.8	PSU26-1-011	HPF	sci	1.49		20.09	0.91	731		P4
0011	LFC Cal	03:18	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:18	1000			VIRUS	sci							Yes
lrs20000009_01	QID 1431	03:18	1000	7.3	PSU26-1-012	LRS2-B	sci	1.44		21.08	0.91			Yes
0012	LFC Cal	03:20	106.5			HPF	cal							Yes
0013	LFC Cal	03:23	106.5			HPF	cal							Yes
virus0000010_02	parallel	03:36	1000			VIRUS	sci							Yes
lrs20000009_02	QID 1431	03:36	1000	0.3	PSU26-1-012	LRS2-B	sci	1.44		21.12	0.96			Yes
0014	QID 1102	04:00	74.5	7.8	PSU26-1-011	HPF	sci	1.26		19.97	0.93	546		P4
0015	QID 1795	04:08	969.1	6.8	UT26-1-014	HPF	sci	1.37		20.18	0.94	486		Yes
virus0000011_01	parallel	04:08	1023			VIRUS	sci							Yes
0016	LFC Cal	04:26	106.5			HPF	cal							Yes
0017	LFC Cal	04:33	106.5			HPF	cal							Yes
virus0000012_01	parallel	04:33	360			VIRUS	sci							Yes
lrs20000010_01	QID 1061	04:33	360	9.0	PSU26-1-016	LRS2-B	sci	1.39		20.95	0.93			Yes
0018	LFC Cal	04:36	106.5			HPF	cal							Yes
virus0000012_02	parallel	04:40	360			VIRUS	sci							Yes
lrs20000010_02	QID 1061	04:40	360	1.0	PSU26-1-016	LRS2-B	sci	1.35		20.95	0.92			Yes
0019	LFC Cal	04:51	106.5			HPF	cal							Yes
lrs20000011_01	QID 1062	04:51	180	5.0	PSU26-1-016	LRS2-B	sci	1.41		20.95	0.97			Yes
lrs20000011_02	QID 1062	04:55	180	1.0	PSU26-1-016	LRS2-B	sci	1.47		20.96	0.97			Yes
0020	LFC Cal	05:02	106.5			HPF	cal							Yes
virus0000013_01	parallel	05:02	360			VIRUS	sci							Yes
lrs20000012_01	QID 1063	05:02	360	4.0	PSU26-1-016	LRS2-B	sci	1.35		21.00	0.89			Yes
0021	LFC Cal	05:04	106.5			HPF	cal							Yes
virus0000013_02	parallel	05:09	360			VIRUS	sci							Yes
lrs20000012_02	QID 1063	05:09	360	1.0	PSU26-1-016	LRS2-B	sci	1.29		21.03	0.89			Yes
lrs20000013_01	HD55677_056_E	05:21	30	6.5		LRS2	spec	1.77		21.26	0.99			Yes
lrs20000014_01	HD55677_066_E	05:25	30	2.5		LRS2	spec	1.53		20.57	0.94			Yes
lrs20000015_01	parallel	05:29	360			LRS2	sci							Yes
virus0000014_01	QID 1558	05:29	360	4.0	UT26-1-008	VIRUS	sci	1.61		21.70	0.70			Yes
0022	LFC Cal	05:30	106.5			HPF	cal							Yes
0023	LFC Cal	05:32	106.5			HPF	cal							Yes
lrs20000015_02	parallel	05:37	360			LRS2	sci							Yes
virus0000014_02	QID 1558	05:37	360	2.0	UT26-1-008	VIRUS	sci	1.65		21.69	0.74			Yes
lrs20000015_03	parallel	05:44	360			LRS2	sci							Yes
virus0000014_03	QID 1558	05:44	360	1.0	UT26-1-008	VIRUS	sci	1.62		21.70	0.75			Yes
lrs20000016_01	parallel	05:55	360			LRS2	sci							Yes
virus0000015_01	QID 1561	05:55	360	5.0	UT26-1-008	VIRUS	sci	1.48		21.58	0.88			Yes
0024	LFC Cal	05:56	106.5			HPF	cal							Yes
0025	LFC Cal	05:58	106.5			HPF	cal							Yes
lrs20000016_02	parallel	06:03	360			LRS2	sci							Yes
virus0000015_02	QID 1561	06:03	360	2.0	UT26-1-008	VIRUS	sci	1.49		21.56	0.92			Yes
lrs20000016_03	parallel	06:10	360			LRS2	sci							Yes
virus0000015_03	QID 1561	06:10	360	1.0	UT26-1-008	VIRUS	sci	1.75		21.58	0.92			Yes
0026	LFC Cal	06:21	106.5			HPF	cal							Yes
lrs20000017_01	parallel	06:21	450			LRS2	sci							Yes
virus0000016_01	QID 1200	06:21	450	4.5	M26-1-002	VIRUS	sci	1.47		21.46	1.03			Yes
0027	LFC Cal	06:24	106.5			HPF	cal							Yes
0028	LFC Cal	06:26	106.5			HPF	cal							Yes
lrs20000017_02	parallel	06:30	450			LRS2	sci							Yes
virus0000016_02	QID 1200	06:30	450	1.5	M26-1-002	VIRUS	sci	1.64		21.46	1.03			Yes
lrs20000017_03	parallel	06:38	450			LRS2	sci							Yes
virus0000016_03	QID 1200	06:38	450	1.5	M26-1-002	VIRUS	sci	1.63		21.46	1.02			Yes
0029	QID 1210	06:54	969.1	7.8	UT26-1-003	HPF	sci	1.73		20.26	0.96	24		Yes
virus0000017_01	parallel	06:54	2047			VIRUS	sci							Yes
0030	QID 1210	07:11	969.1	0.8	UT26-1-003	HPF	sci	1.48		20.31	0.89	23		Yes
lrs20000018_01	QID 1824	07:33	25	5.6	PSU26-1-012	LRS2-B	sci	1.65		21.20	0.98			Yes
0031	LFC Cal	07:39	106.5			HPF	cal							Yes
lrs20000019_01	parallel	07:39	360			LRS2	sci							Yes
virus0000018_01	QID 356	07:39	360	6.0	UT26-1-008	VIRUS	sci	1.65		21.46	1.04			Yes
0032	LFC Cal	07:41	106.5			HPF	cal							Yes
lrs20000019_02	parallel	07:46	360			LRS2	sci							Yes
virus0000018_02	QID 356	07:46	360	1.0	UT26-1-008	VIRUS	sci	1.56		21.39	1.12			Yes
lrs20000019_03	parallel	07:53	360			LRS2	sci							Yes
virus0000018_03	QID 356	07:53	360	1.0	UT26-1-008	VIRUS	sci	1.49		21.39	1.15			Yes
0033	LFC Cal	08:02	106.5			HPF	cal							Yes
lrs20000020_01	parallel	08:02	360			LRS2	sci							Yes
virus0000019_01	QID 358	08:02	360	3.0	UT26-1-008	VIRUS	sci	1.52		21.42	1.15			Yes
0034	LFC Cal	08:05	106.5			HPF	cal							Yes
lrs20000020_02	parallel	08:09	360			LRS2	sci							Yes
virus0000019_02	QID 358	08:09	360	1.0	UT26-1-008	VIRUS	sci	1.56		21.42	1.14			Yes
lrs20000020_03	parallel	08:17	360			LRS2	sci							Yes
virus0000019_03	QID 358	08:17	360	2.0	UT26-1-008	VIRUS	sci	1.53		21.41	1.15			Yes
0035	LFC Cal	08:27	106.5			HPF	cal							Yes
lrs20000021_01	parallel	08:27	360			LRS2	sci							Yes
virus0000020_01	QID 371	08:27	360	4.0	UT26-1-008	VIRUS	sci	1.62		21.61	0.93			Yes
0036	LFC Cal	08:29	106.5			HPF	cal							Yes
lrs20000021_02	parallel	08:34	360			LRS2	sci							Yes
virus0000020_02	QID 371	08:34	360	1.0	UT26-1-008	VIRUS	sci	1.62		21.58	0.92			Yes
lrs20000021_03	parallel	08:41	360			LRS2	sci							Yes
virus0000020_03	QID 371	08:41	360	1.0	UT26-1-008	VIRUS	sci	1.52		21.55	0.82			Yes
lrs20000022_01	parallel	08:53	600			LRS2	sci							Yes
virus0000021_01	QID 480	08:53	600	6.0	UT26-1-018	VIRUS	sci	1.56		21.60	0.87		passing clouds during last dither	Yes
0037	LFC Cal	08:54	106.5			HPF	cal							Yes
0038	LFC Cal	08:56	106.5			HPF	cal							Yes
0039	LFC Cal	08:58	106.5			HPF	cal							Yes
lrs20000022_02	parallel	09:05	600			LRS2	sci							Yes
virus0000021_02	QID 480	09:05	600	2.0	UT26-1-018	VIRUS	sci	1.56		21.59	0.88			Yes
lrs20000022_03	parallel	09:16	600			LRS2	sci							Yes
virus0000021_03	QID 480	09:16	600	1.0	UT26-1-018	VIRUS	sci	1.56		21.56	0.71			Yes
0040	LFC Cal	09:32	106.5			HPF	cal							Yes
lrs20000023_01	parallel	09:32	360			LRS2	sci							Yes
virus0000022_01	QID 354	09:32	360	6.0	UT26-1-008	VIRUS	sci	1.47		21.87	0.91			Yes
0041	LFC Cal	09:34	106.5			HPF	cal							Yes
lrs20000023_02	parallel	09:39	360			LRS2	sci							Yes
virus0000022_02	QID 354	09:39	360	1.0	UT26-1-008	VIRUS	sci	1.42	0.82	21.82	0.93			Yes
lrs20000023_03	parallel	09:46	360			LRS2	sci							Yes
virus0000022_03	QID 354	09:46	360	1.0	UT26-1-008	VIRUS	sci	1.51	0.97	21.79	0.94			Yes
0042	HR3486_tell_std	10:08	117.2	5.0		HPF	telluric	1.50	0.86	19.86	0.86			Yes
lrs20000024_01	bias	11:36	0			LRS2	cal							Yes
virus0000023_01	bias	11:36	0			VIRUS	cal							Yes
virus0000024_01	Cd-A	11:41	15		ENG26-1-002	VIRUS	cal							Yes
virus0000025_01	Hg	11:42	15		ENG26-1-002	VIRUS	cal							Yes
0043	Dark	11:50	319.5			HPF	cal							Yes
0044	Quartz FCU	12:01	74.5			HPF	cal							Yes
0045	Quartz FCU	12:03	74.5			HPF	cal							Yes
0046	Quartz FCU	12:05	74.5			HPF	cal							Yes
0047	Quartz FCU	12:06	74.5			HPF	cal							Yes
0048	Quartz FCU	12:08	74.5			HPF	cal							Yes
0049	Quartz FCU	12:10	74.5			HPF	cal							Yes
0050	Quartz FCU	12:12	74.5			HPF	cal							Yes
0051	Alpha Bright Cal	12:14	85.2			HPF	cal							Yes
0052	Alpha Bright Cal	12:16	85.2			HPF	cal							Yes
0053	Alpha Bright Cal	12:18	85.2			HPF	cal							Yes
0054	Alpha Bright Cal	12:20	85.2			HPF	cal							Yes
0055	LFC FCU	12:23	106.5			HPF	cal							Yes
0056	LFC FCU	12:25	106.5			HPF	cal							Yes
0057	LFC FCU	12:27	106.5			HPF	cal							Yes
0058	LFC FCU	12:30	106.5			HPF	cal							Yes
0059	LFC FCU	12:32	106.5			HPF	cal							Yes
0060	LFC FCU	12:34	106.5			HPF	cal							Yes
0061	LFC Cal	12:37	106.5			HPF	cal							Yes
0062	LFC Cal	12:39	106.5			HPF	cal							Yes
0063	Etalon Cal	12:47	159.8			HPF	cal							Yes
0064	Etalon Cal	12:50	159.8			HPF	cal							Yes
0065	Etalon Cal	12:54	159.8			HPF	cal							Yes
0066	Etalon Cal	12:57	159.8			HPF	cal							Yes
0067	UNe Slave Cal	13:00	426			HPF	cal							Yes
0068	UNe Slave Cal	13:08	426			HPF	cal							Yes
0069	UNe Slave Cal	13:16	426			HPF	cal							Yes
0070	UNe Slave Cal	13:24	426			HPF	cal							Yes
0071	UNe Slave Cal	13:31	426			HPF	cal							Yes
0072	UNe Slave Cal	13:39	426			HPF	cal							Yes
0092	LFC Cal	21:47	106.5			HPF	cal							Yes
lrs20009900_01	bias	21:58	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	21:59	20			VIRUS	cal							Yes
virus0009901_01	bias	22:00	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:01	20			LRS2	cal							Yes
virus0009902_01	dark	22:02	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:03	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:05	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:06	15			LRS2	cal							Yes
0093	Dark	22:08	319.5			HPF	cal							Yes
0094	Quartz FCU	22:15	74.5			HPF	cal							Yes
0095	Quartz FCU	22:17	74.5			HPF	cal							Yes
0096	Quartz FCU	22:19	74.5			HPF	cal							Yes
0097	Quartz FCU	22:20	74.5			HPF	cal							Yes
0098	Quartz FCU	22:22	74.5			HPF	cal							Yes
0099	Quartz FCU	22:24	74.5			HPF	cal							Yes
0100	Quartz FCU	22:26	74.5			HPF	cal							Yes
0101	Alpha Bright Cal	22:28	85.2			HPF	cal							Yes
0102	Alpha Bright Cal	22:30	85.2			HPF	cal							Yes
0103	Alpha Bright Cal	22:32	85.2			HPF	cal							Yes
0104	Alpha Bright Cal	22:34	85.2			HPF	cal							Yes
0105	LFC FCU	22:37	106.5			HPF	cal							Yes
0106	LFC FCU	22:39	106.5			HPF	cal							Yes
0107	LFC Cal	22:42	106.5			HPF	cal							Yes
0108	LFC Cal	22:44	106.5			HPF	cal							Yes
0109	Etalon Cal	22:47	159.8			HPF	cal							Yes
0110	UNe Slave Cal	22:50	426			HPF	cal							Yes
lrs20000031_01	flat_Qth_R	22:51	15			LRS2	cal							Yes
lrs20000031_02	flat_Qth_R	22:52	15			LRS2	cal							Yes
lrs20000031_03	flat_Qth_R	22:54	15			LRS2	cal							Yes
lrs20000031_04	flat_Qth_R	22:55	15			LRS2	cal							Yes
lrs20000031_05	flat_Qth_R	22:56	15			LRS2	cal							Yes
lrs20000032_01	flat_ldls_long_B	22:57	20			LRS2	cal							Yes
0111	UNe Slave Cal	22:58	426			HPF	cal							Yes
lrs20000032_02	flat_ldls_long_B	22:59	20			LRS2	cal							Yes
lrs20000032_03	flat_ldls_long_B	23:00	20			LRS2	cal							Yes
lrs20000033_01	Cd-A_B	23:01	29			LRS2	cal							Yes
lrs20000033_02	Cd-A_B	23:03	29			LRS2	cal							Yes
lrs20000033_03	Cd-A_B	23:04	29			LRS2	cal							Yes
0112	UNe Slave Cal	23:06	426			HPF	cal							Yes
lrs20000034_01	FeAr_R	23:06	15			LRS2	cal							Yes
lrs20000034_02	FeAr_R	23:07	15			LRS2	cal							Yes
lrs20000034_03	FeAr_R	23:08	15			LRS2	cal							Yes
lrs20000035_01	Hg_R	23:09	20			LRS2	cal							Yes
lrs20000035_02	Hg_R	23:11	20			LRS2	cal							Yes
lrs20000035_03	Hg_R	23:12	20			LRS2	cal							Yes
lrs20000036_01	Hg_B	23:13	15			LRS2	cal							Yes
0113	UNe Slave Cal	23:14	426			HPF	cal							Yes
lrs20000036_02	Hg_B	23:15	15			LRS2	cal							Yes
lrs20000036_03	Hg_B	23:16	15			LRS2	cal							Yes
0114	UNe Slave Cal	23:22	426			HPF	cal							Yes
virus0000036_01	flat_ldls_long	23:22	15			VIRUS	cal							Yes
virus0000036_02	flat_ldls_long	23:24	15			VIRUS	cal							Yes
virus0000036_03	flat_ldls_long	23:25	15			VIRUS	cal							Yes
virus0000037_01	Cd-A	23:27	15			VIRUS	cal							Yes
virus0000037_02	Cd-A	23:28	15			VIRUS	cal							Yes
0115	UNe Slave Cal	23:29	426			HPF	cal							Yes
virus0000037_03	Cd-A	23:29	15			VIRUS	cal							Yes
virus0000038_01	Hg	23:31	15			VIRUS	cal							Yes
virus0000038_02	Hg	23:32	15			VIRUS	cal							Yes
virus0000038_03	Hg	23:34	15			VIRUS	cal							Yes
lrs20000037_01	dark	23:35	360			LRS2	cal							Yes
virus0000039_01	dark	23:35	360			VIRUS	cal							Yes
lrs20000037_02	dark	23:42	360			LRS2	cal							Yes
virus0000039_02	dark	23:42	360			VIRUS	cal							Yes
lrs20000037_03	dark	23:49	360			LRS2	cal							Yes
virus0000039_03	dark	23:49	360			VIRUS	cal							Yes