HET Night Report Reader

Civil Date	Ephemerides
2026-02-04	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:42	01:28	01:57	12:22	12:50	13:38	03:45	-
Night Length	10:25		Sunset Temperature

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

Overlaps		none

Other Personnel	none

Guests	none

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:40	2.7	5.7	12:55	twilight	12:15
Total Time Open					12:15

Program	Night Priority	Science
01:57	Science
10:21	Idle due to weather (Sky brightness)
10:29	Science

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
01:13	02:09	0.71	1.11	360	+133	2.4	3.7	3.8	115	5	First of Night
12:47	12:54	0.95	1.51	300	+1112	2.9	3.6	3.4	111	6	Post-Observing

Problem Reports
PR Number	Times	Time Lost	Description	Response
6581	13:00-13:00	00:00	Dome shutter stuck at NEAR_CLOSED at EON. The usual trick of moving the dome (stowing) and then attempting to close shutter again did not work. Left dome in NEAR_CLOSED state for day staff.
5588	01:13-01:15	00:02	Pfip server crashed without any indication as to why in the log.

TO Comments	Clear and calm night 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
virus0000028_02	flat_ldls_long	00:01	15			VIRUS	cal							Yes
virus0000028_03	flat_ldls_long	00:02	15			VIRUS	cal							Yes
virus0000029_01	Cd-A	00:04	15			VIRUS	cal							Yes
virus0000029_02	Cd-A	00:05	15			VIRUS	cal							Yes
0001	UNe Slave Cal	00:06	426			HPF	cal							Yes
virus0000029_03	Cd-A	00:06	15			VIRUS	cal							Yes
virus0000030_01	Hg	00:08	15			VIRUS	cal							Yes
virus0000030_02	Hg	00:09	15			VIRUS	cal							Yes
virus0000030_03	Hg	00:11	15			VIRUS	cal							Yes
lrs20000001_01	dark	00:12	360			LRS2	cal							Yes
virus0000001_01	dark	00:12	360			VIRUS	cal							Yes
lrs20000001_02	dark	00:19	360			LRS2	cal							Yes
virus0000001_02	dark	00:19	360			VIRUS	cal							Yes
lrs20000001_03	dark	00:26	360			LRS2	cal							Yes
virus0000001_03	dark	00:26	360			VIRUS	cal							Yes
0002	twilight	00:39	298.2			HPF	cal					491		Yes
lrs20000002_01	skyflat	00:46	7			LRS2	cal							Yes
lrs20000003_01	skyflat	00:47	10			LRS2	cal							Yes
lrs20000004_01	skyflat	00:49	13			LRS2	cal							Yes
lrs20000005_01	skyflat	00:50	16			LRS2	cal							Yes
lrs20000006_01	skyflat	00:51	22			LRS2	cal							Yes
lrs20000007_01	skyflat	00:52	30			LRS2	cal							Yes
virus0000002_01	skyflat	00:55	7			VIRUS	cal							Yes
virus0000003_01	skyflat	00:56	10			VIRUS	cal							Yes
virus0000004_01	skyflat	00:58	14			VIRUS	cal							Yes
virus0000005_01	skyflat	00:59	18			VIRUS	cal							Yes
virus0000006_01	skyflat	01:01	26			VIRUS	cal							Yes
lrs20000008_01	bias	01:05	0			LRS2	cal							Yes
virus0000007_01	bias	01:05	0			VIRUS	cal							Yes
lrs20000008_02	bias	01:06	0			LRS2	cal							Yes
virus0000007_02	bias	01:06	0			VIRUS	cal							Yes
lrs20000008_03	bias	01:07	0			LRS2	cal							Yes
virus0000007_03	bias	01:07	0			VIRUS	cal							Yes
lrs20000008_04	bias	01:07	0			LRS2	cal							Yes
virus0000007_04	bias	01:08	0			VIRUS	cal							Yes
lrs20000008_05	bias	01:08	0			LRS2	cal							Yes
virus0000007_05	bias	01:09	0			VIRUS	cal							Yes
lrs20000008_06	bias	01:09	0			LRS2	cal							Yes
virus0000007_06	bias	01:10	0			VIRUS	cal							Yes
lrs20000008_07	bias	01:10	0			LRS2	cal							Yes
virus0000007_07	bias	01:10	0			VIRUS	cal							Yes
lrs20000008_08	bias	01:11	0			LRS2	cal							Yes
virus0000007_08	bias	01:11	0			VIRUS	cal							Yes
lrs20000008_09	bias	01:12	0			LRS2	cal							Yes
virus0000007_09	bias	01:12	0			VIRUS	cal							Yes
lrs20000008_10	bias	01:13	0			LRS2	cal							Yes
virus0000007_10	bias	01:13	0			VIRUS	cal							Yes
lrs20000008_11	bias	01:14	0			LRS2	cal							Yes
virus0000007_11	bias	01:14	0			VIRUS	cal							Yes
0003	QID 1948	02:17	969.1	6.8	UT26-1-010	HPF	sci	1.93		20.22	1.05	62		Yes
virus0000008_01	parallel	02:17	2047			VIRUS	sci							Yes
0004	QID 1948	02:34	969.1	1.8	UT26-1-010	HPF	sci	2.08	1.35	20.25	1.01	53		Yes
0005	LFC Cal	02:52	106.5			HPF	cal							Yes
0006	QID 1946	02:58	969.1	7.8	UT26-1-010	HPF	sci	2.14	1.23	20.23	0.78	103		Yes
virus0000009_01	parallel	02:58	2047			VIRUS	sci							Yes
0007	QID 1946	03:16	969.1	0.8	UT26-1-010	HPF	sci	1.91	1.29	20.02	0.61	83		Yes
0008	LFC Cal	03:33	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:40	891			VIRUS	sci							Yes
0009	QID 1770	03:41	841.4	9.0	UT26-1-014	HPF	sci	1.70	1.32	19.59	0.90	444		Yes
0010	LFC Cal	03:56	106.5			HPF	cal							Yes
0011	QID 1932	04:00	617.7	4.7	UT26-1-007	HPF	sci	1.82	1.38	19.02	0.73	20		Yes
virus0000011_01	parallel	04:00	1984			VIRUS	sci							Yes
0012	QID 1932	04:11	617.7	1.7	UT26-1-007	HPF	sci	1.72	1.27	18.93	0.77	19		Yes
0013	QID 1932	04:22	617.7	0.7	UT26-1-007	HPF	sci	1.70	1.38	18.90	0.83	18		Yes
0014	LFC Cal	04:34	106.5			HPF	cal							Yes
lrs20000009_01	BD+210607_056_W	04:40	30	7.5		LRS2	spec	2.10	1.34	19.59	0.77			Yes
lrs20000010_01	BD+210607_066_W	04:44	15	2.8		LRS2	spec	1.95	1.35	19.32	0.86			Yes
0015	HR1770_tell_std	04:51	117.2	7.0		HPF	telluric	1.75	1.43	19.07	0.75			Yes
0016	QID 1763	04:59	532.5	6.1	UT26-1-014	HPF	sci	1.82	1.17	19.30	0.80	464		Yes
virus0000012_01	parallel	04:59	583			VIRUS	sci							Yes
0017	LFC Cal	05:09	106.5			HPF	cal							Yes
virus0000013_01	parallel	05:16	1023			VIRUS	sci							Yes
0018	QID 1798	05:17	969.1	8.8	UT26-1-014	HPF	sci	1.83	1.60	19.52	0.99	415		Yes
0019	LFC Cal	05:35	106.5			HPF	cal							Yes
0020	QID 2533	05:41	308.9	7.9	UT26-1-009	HPF	sci	2.14	1.27	19.12	0.91	85		Yes
virus0000014_01	parallel	05:41	1417			VIRUS	sci							Yes
0021	QID 2533	05:47	308.9	0.9	UT26-1-009	HPF	sci	2.03	1.41	19.25	0.93	94		Yes
0022	QID 2533	05:53	308.9	0.9	UT26-1-009	HPF	sci	1.87	1.50	19.31	0.92	104		Yes
0023	QID 2533	05:58	308.9	-0.1	UT26-1-009	HPF	sci	1.83	1.45	19.32	0.92	109		Yes
0024	QID 1474	06:15	969.1	12.8	UT26-1-010	HPF	sci	1.87	1.29	19.52	0.78	100		P4
virus0000015_01	parallel	06:15	2047			VIRUS	sci							Yes
0025	QID 1474	06:33	969.1	0.8	UT26-1-010	HPF	sci	2.11	2.16	19.55	0.78	91		P4
0026	LFC Cal	06:50	106.5			HPF	cal							Yes
0027	HR2966_tell_std	06:59	330.2	10.5		HPF	telluric	2.13	1.50	19.55	0.92			Yes
0028	QID 1107	07:11	915.9	6.7	UT26-1-006	HPF	sci	1.73	1.35	19.64	0.86	100		Yes
virus0000016_01	parallel	07:11	2941			VIRUS	sci							Yes
0029	QID 1107	07:28	915.9	0.7	UT26-1-006	HPF	sci	1.83	1.34	19.60	0.96	108		Yes
0030	QID 1107	07:44	915.9	0.7	UT26-1-006	HPF	sci	1.85	1.07	19.54	0.93	92		Yes
0031	QID 1777	08:06	969.1	7.8	UT26-1-014	HPF	sci	1.78	1.29	19.54	0.89	410		Yes
virus0000017_01	parallel	08:06	1023			VIRUS	sci							Yes
0032	LFC Cal	08:24	106.5			HPF	cal							Yes
0033	QID 1784	08:30	969.1	6.8	UT26-1-014	HPF	sci	1.66	1.59	19.37	0.82	367		Yes
virus0000018_01	parallel	08:30	1023			VIRUS	sci							Yes
0034	LFC Cal	08:48	106.5			HPF	cal							Yes
0035	QID 1600	08:55	617.7	9.7	UT26-1-007	HPF	sci	1.61		19.41	0.97	25		Yes
virus0000019_01	parallel	08:55	1984			VIRUS	sci							Yes
0036	QID 1600	09:07	617.7	0.7	UT26-1-007	HPF	sci	1.75		19.37	0.97	22		Yes
0037	QID 1600	09:18	617.7	0.7	UT26-1-007	HPF	sci	1.72		19.30	0.96	19		Yes
0038	LFC Cal	09:30	106.5			HPF	cal							Yes
virus0000020_01	parallel	09:35	1321			VIRUS	sci							Yes
0039	QID 138	09:36	617.7	7.7	UT26-1-009	HPF	sci	1.64		19.61	0.90	144		P4
0040	QID 138	09:47	617.7	0.7	UT26-1-009	HPF	sci	1.70		19.67	0.88	134		P4
0041	LFC Cal	10:07	106.5			HPF	cal							Yes
virus0000021_01	parallel	10:07	360			VIRUS	sci							Yes
lrs20000011_01	QID 1697	10:07	360	10.0	UT26-1-016	LRS2-R	sci	1.61		19.43	0.91			P4
0042	LFC Cal	10:10	106.5			HPF	cal							Yes
lrs20000012_01	QID 1698	10:18	180	5.0	UT26-1-016	LRS2-B	sci	1.78		19.41	0.87			P4
0043	LFC Cal	10:19	106.5			HPF	cal							Yes
0044	QID 20	10:34	969.1	5.8	UT26-1-003	HPF	sci	1.80	1.22	19.54	0.99	46		Yes
virus0000022_01	parallel	10:34	2047			VIRUS	sci							Yes
0045	QID 20	10:51	969.1	0.8	UT26-1-003	HPF	sci	1.61	1.38	19.60	1.00	46		Yes
virus0000023_01	parallel	11:15	2047			VIRUS	sci							Yes
0046	QID 1972	11:16	969.1	7.8	UT26-1-003	HPF	sci	1.57	1.31	19.61	0.88	46		Yes
0047	QID 1972	11:33	969.1	0.8	UT26-1-003	HPF	sci	1.49	1.19	19.54	0.89	47		Yes
virus0000024_01	parallel	11:56	1695			VIRUS	sci							Yes
0048	QID 1110	11:57	798.8	7.7	UT26-1-006	HPF	sci	1.55	1.13	19.51	0.84	132		Yes
0049	QID 1110	12:11	798.8	0.7	UT26-1-006	HPF	sci	1.43	1.21	19.52	0.87	139		Yes
virus0000025_01	parallel	12:29	1023			VIRUS	sci							Yes
0050	QID 1811	12:30	969.1	5.8	UT26-1-014	HPF	sci	1.44	1.18	19.42	0.74	399		Yes
0051	LFC Cal	12:48	106.5			HPF	cal							Yes
lrs20000013_01	bias	12:49	0			LRS2	cal							Yes
virus0000026_01	bias	12:50	0			VIRUS	cal							Yes
virus0000027_01	Cd-A	12:54	15		ENG26-1-002	VIRUS	cal							Yes
virus0000028_01	Hg	12:55	15		ENG26-1-002	VIRUS	cal							Yes
0052	Dark	13:07	319.5			HPF	cal							Yes
0053	Quartz FCU	13:18	74.5			HPF	cal							Yes
0054	Quartz FCU	13:20	74.5			HPF	cal							Yes
0055	Quartz FCU	13:22	74.5			HPF	cal							Yes
0056	Quartz FCU	13:23	74.5			HPF	cal							Yes
0057	Quartz FCU	13:25	74.5			HPF	cal							Yes
0058	Quartz FCU	13:27	74.5			HPF	cal							Yes
0059	Quartz FCU	13:29	74.5			HPF	cal							Yes
0060	Alpha Bright Cal	13:31	85.2			HPF	cal							Yes
0061	Alpha Bright Cal	13:33	85.2			HPF	cal							Yes
0062	Alpha Bright Cal	13:35	85.2			HPF	cal							Yes
0063	Alpha Bright Cal	13:37	85.2			HPF	cal							Yes
0064	LFC FCU	13:40	106.5			HPF	cal							Yes
0065	LFC FCU	13:42	106.5			HPF	cal							Yes
0066	LFC FCU	13:45	106.5			HPF	cal							Yes
0067	LFC FCU	13:47	106.5			HPF	cal							Yes
0068	LFC FCU	13:49	106.5			HPF	cal							Yes
0069	LFC FCU	13:52	106.5			HPF	cal							Yes
0070	LFC Cal	13:55	106.5			HPF	cal							Yes
0071	LFC Cal	13:57	106.5			HPF	cal							Yes
0072	Etalon Cal	14:05	159.8			HPF	cal							Yes
0073	Etalon Cal	14:08	159.8			HPF	cal							Yes
0074	Etalon Cal	14:11	159.8			HPF	cal							Yes
0075	Etalon Cal	14:14	159.8			HPF	cal							Yes
0076	UNe Slave Cal	14:18	426			HPF	cal							Yes
0077	UNe Slave Cal	14:25	426			HPF	cal							Yes
0078	UNe Slave Cal	14:33	426			HPF	cal							Yes
0079	UNe Slave Cal	14:41	426			HPF	cal							Yes
0080	UNe Slave Cal	14:49	426			HPF	cal							Yes
0081	UNe Slave Cal	14:57	426			HPF	cal							Yes
0088	LFC Cal	22:16	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:32	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:32	20			VIRUS	cal							Yes
virus0009901_01	bias	22:34	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:35	20			LRS2	cal							Yes
virus0009902_01	dark	22:36	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:37	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:39	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:40	15			LRS2	cal							Yes
0089	Dark	22:45	319.5			HPF	cal							Yes
0090	Quartz FCU	22:52	74.5			HPF	cal							Yes
0091	Quartz FCU	22:54	74.5			HPF	cal							Yes
0092	Quartz FCU	22:55	74.5			HPF	cal							Yes
0093	Quartz FCU	22:57	74.5			HPF	cal							Yes
0094	Quartz FCU	22:59	74.5			HPF	cal							Yes
0095	Quartz FCU	23:01	74.5			HPF	cal							Yes
0096	Quartz FCU	23:03	74.5			HPF	cal							Yes
0097	Alpha Bright Cal	23:05	85.2			HPF	cal							Yes
0098	Alpha Bright Cal	23:07	85.2			HPF	cal							Yes
0099	Alpha Bright Cal	23:09	85.2			HPF	cal							Yes
0100	Alpha Bright Cal	23:11	85.2			HPF	cal							Yes
0101	LFC FCU	23:13	106.5			HPF	cal							Yes
0102	LFC FCU	23:16	106.5			HPF	cal							Yes
0103	LFC Cal	23:18	106.5			HPF	cal							Yes
0104	LFC Cal	23:21	106.5			HPF	cal							Yes
0105	Etalon Cal	23:23	159.8			HPF	cal							Yes
0106	UNe Slave Cal	23:27	426			HPF	cal							Yes
lrs20000017_01	flat_Qth_R	23:28	15			LRS2	cal							Yes
lrs20000017_02	flat_Qth_R	23:29	15			LRS2	cal							Yes
lrs20000017_03	flat_Qth_R	23:31	15			LRS2	cal							Yes
lrs20000017_04	flat_Qth_R	23:32	15			LRS2	cal							Yes
lrs20000017_05	flat_Qth_R	23:33	15			LRS2	cal							Yes
lrs20000018_01	flat_ldls_long_B	23:34	20			LRS2	cal							Yes
0107	UNe Slave Cal	23:35	426			HPF	cal							Yes
lrs20000018_02	flat_ldls_long_B	23:36	20			LRS2	cal							Yes
lrs20000018_03	flat_ldls_long_B	23:37	20			LRS2	cal							Yes
lrs20000019_01	Cd-A_B	23:38	29			LRS2	cal							Yes
lrs20000019_02	Cd-A_B	23:40	29			LRS2	cal							Yes
lrs20000019_03	Cd-A_B	23:41	29			LRS2	cal							Yes
0108	UNe Slave Cal	23:42	426			HPF	cal							Yes
lrs20000020_01	FeAr_R	23:43	15			LRS2	cal							Yes
lrs20000020_02	FeAr_R	23:44	15			LRS2	cal							Yes
lrs20000020_03	FeAr_R	23:45	15			LRS2	cal							Yes
lrs20000021_01	Hg_R	23:47	20			LRS2	cal							Yes
lrs20000021_02	Hg_R	23:48	20			LRS2	cal							Yes
lrs20000021_03	Hg_R	23:49	20			LRS2	cal							Yes
0109	UNe Slave Cal	23:50	426			HPF	cal							Yes
lrs20000022_01	Hg_B	23:50	15			LRS2	cal							Yes
lrs20000022_02	Hg_B	23:52	15			LRS2	cal							Yes
lrs20000022_03	Hg_B	23:53	15			LRS2	cal							Yes
0110	UNe Slave Cal	23:58	426			HPF	cal							Yes
virus0000028_01	flat_ldls_long	23:59	15			VIRUS	cal							Yes