HET Night Report Reader

Civil Date	Ephemerides
2025-12-05	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:02	00:51	01:20	12:14	12:43	13:33	00:30	-
Night Length	10:54		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Zach Vanderbosch	Cassie Crowe	-	-

Overlaps		none

Other Personnel	Jose Fernandez, Justen Pautzke, Amy Westfall

Guests	RA candidate

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:00	7.9	8.4	13:15	twilight	13:15
Total Time Open					13:15

Program	Night Priority	Science
01:20	Science
02:04	Engineering (Non-sidereal tracking attempt (C2025 K1))
02:25	Science
11:30	Engineering (Non-sidereal tracking attempt (C2025 N1))

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
00:26	00:51	0.40	0.61	-25	-182	7.3	8.1	8.2	288	14	First of Night
09:53	10:25	0.45	0.73	-45	+1521	5.3	5.9	5.7	279	10	Stack/Re-stack
12:43	12:49	0.56	0.84	-85	+1671	6.0	6.5	6.5	268	17	Post-Observing
12:50	13:11				+1696	5.8	6.2	6.3	264	14	End of Night

Problem Reports
PR Number	Times	Time Lost	Description	Response
5588	01:54-01:55	00:01	PFIP crashed
6078	02:22-02:23, 03:05-03:16, 05:15-05:22, 06:45-07:36, 08:22-08:23, 10:36-10:39, 10:52-10:54	01:16	1st) WFS2 oscillation rest) WFS2 faulted

Ops Comments	none

TO Comments	Lots of WFS2 faults. Otherwise clear.

RA Comments	none

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
0001	UNe Slave Cal	00:05	426			HPF	cal							Yes
lrs20000001_01	skyflat	00:07	7			LRS2	cal							Yes
lrs20000002_01	skyflat	00:08	10			LRS2	cal							Yes
lrs20000003_01	skyflat	00:09	13			LRS2	cal							Yes
lrs20000004_01	skyflat	00:10	16			LRS2	cal							Yes
lrs20000005_01	skyflat	00:12	22			LRS2	cal							Yes
0002	UNe Slave Cal	00:13	426			HPF	cal							Yes
lrs20000006_01	skyflat	00:13	30			LRS2	cal							Yes
virus0000001_01	skyflat	00:15	7			VIRUS	cal							Yes
virus0000002_01	skyflat	00:17	10			VIRUS	cal							Yes
virus0000003_01	skyflat	00:18	14			VIRUS	cal							Yes
virus0000004_01	skyflat	00:19	18			VIRUS	cal							Yes
virus0000005_01	skyflat	00:21	26			VIRUS	cal							Yes
lrs20000007_01	flat_Qth_R	00:24	15			LRS2	cal							Yes
lrs20000007_02	flat_Qth_R	00:25	15			LRS2	cal							Yes
lrs20000007_03	flat_Qth_R	00:26	15			LRS2	cal							Yes
lrs20000007_04	flat_Qth_R	00:28	15			LRS2	cal							Yes
lrs20000007_05	flat_Qth_R	00:29	15			LRS2	cal							Yes
lrs20000008_01	flat_ldls_long_B	00:30	20			LRS2	cal							Yes
lrs20000008_02	flat_ldls_long_B	00:31	20			LRS2	cal							Yes
lrs20000008_03	flat_ldls_long_B	00:33	20			LRS2	cal							Yes
lrs20000009_01	Cd-A_B	00:34	29			LRS2	cal							Yes
lrs20000009_02	Cd-A_B	00:36	29			LRS2	cal							Yes
lrs20000009_03	Cd-A_B	00:37	29			LRS2	cal							Yes
lrs20000010_01	FeAr_R	00:39	15			LRS2	cal							Yes
lrs20000010_02	FeAr_R	00:40	15			LRS2	cal							Yes
lrs20000010_03	FeAr_R	00:41	15			LRS2	cal							Yes
lrs20000011_01	Hg_R	00:43	20			LRS2	cal							Yes
lrs20000011_02	Hg_R	00:44	20			LRS2	cal							Yes
lrs20000011_03	Hg_R	00:45	20			LRS2	cal							Yes
lrs20000012_01	Hg_B	00:47	15			LRS2	cal							Yes
lrs20000012_02	Hg_B	00:48	15			LRS2	cal							Yes
lrs20000012_03	Hg_B	00:49	15			LRS2	cal							Yes
0003	LFC Cal	00:59	106.5			HPF	cal							Yes
virus0000006_01	parallel	00:59	360			VIRUS	sci							Yes
lrs20000013_01	parallel	00:59	360	6.0	UT26-1-016	LRS2-R	sci	1.99		18.94	0.47		Clouds, low transparency.	No
0004	LFC Cal	01:02	106.5			HPF	cal							Yes
0005	LFC Cal	01:09	106.5			HPF	cal							Yes
lrs20000014_01	parallel	01:09	180	4.0	UT26-1-016	LRS2-B	sci	1.88		19.44	0.15		Clouds, low transparency.	No
0006	LFC Cal	01:19	106.5			HPF	cal							Yes
virus0000007_01	parallel	01:19	1200			VIRUS	sci							Yes
lrs20000015_01	parallel	01:19	1200	7.0	UT26-1-016	LRS2-R	sci	1.71		18.62	0.64			Yes
0007	LFC Cal	01:22	106.5			HPF	cal							Yes
0008	LFC Cal	01:24	106.5			HPF	cal							Yes
virus0000008_01	parallel	01:43	600			VIRUS	sci							Yes
0009	LFC Cal	01:44	106.5			HPF	cal							Yes
lrs20000016_01	parallel	01:44	600	5.0	UT26-1-016	LRS2-B	sci	1.78		18.93	0.71			Yes
0010	LFC Cal	01:46	106.5			HPF	cal							Yes
0011	LFC Cal	01:48	106.5			HPF	cal							Yes
0012	parallel	02:02	74.5	8.8	PSU26-1-011	HPF	sci	1.65		19.03	0.76	552		Yes
virus0000009_01	parallel	02:31	2047			VIRUS	sci							Yes
0013	parallel	02:32	969.1	6.8	PSU26-1-023	HPF	sci	1.87		19.40	0.91	294		Yes
0014	parallel	02:49	969.1	0.8	PSU26-1-023	HPF	sci	2.00		19.02	0.84	234		Yes
0015	LFC Cal	03:07	106.5			HPF	cal							Yes
virus0000010_01	parallel	03:17	1984			VIRUS	sci							Yes
0016	parallel	03:18	617.7	1.7	UT26-1-009	HPF	sci	2.17		17.87	0.71	38	Sky brightness slightly brighter than 18 mag. Please check data quality.	Yes
0017	parallel	03:29	617.7	0.7	UT26-1-009	HPF	sci	2.21		17.97	0.73	37		Yes
0018	parallel	03:40	617.7	0.7	UT26-1-009	HPF	sci	2.14		17.81	0.76	36		Yes
0019	LFC Cal	03:57	106.5			HPF	cal							Yes
virus0000011_01	parallel	03:57	1050			VIRUS	sci							Yes
lrs20000017_01	parallel	03:57	1050	7.5	PSU26-1-021	LRS2-B	sci	2.01		18.84	0.87		Sky brightness slightly brighter than 19 mag. Please check data quality.	Yes
0020	LFC Cal	04:00	106.5			HPF	cal							Yes
0021	LFC Cal	04:02	106.5			HPF	cal							Yes
0022	LFC Cal	04:19	106.5			HPF	cal							Yes
virus0000012_01	parallel	04:19	1050			VIRUS	sci							Yes
lrs20000018_01	parallel	04:19	1050	3.5	PSU26-1-021	LRS2-R	sci	1.74		18.83	0.87			Yes
0023	LFC Cal	04:21	106.5			HPF	cal							Yes
0024	LFC Cal	04:24	106.5			HPF	cal							Yes
virus0000013_01	parallel	04:41	2047			VIRUS	sci							Yes
0025	parallel	04:42	969.1	5.8	UT26-1-003	HPF	sci	1.67		18.44	0.86	16	Image quality slightly above 1.5". Please check data quality.	Yes
0026	parallel	04:59	969.1	0.8	UT26-1-003	HPF	sci	1.56		18.58	0.87	18		Yes
0027	HR223_tell_std	05:26	117.2	4.0		HPF	telluric	1.75		19.01	0.98			Yes
0028	parallel	05:34	969.1	5.8	PSU26-1-023	HPF	sci	1.50	1.09	18.71	0.97	62		Yes
virus0000014_01	parallel	05:34	2047			VIRUS	sci							Yes
0029	parallel	05:51	969.1	0.8	PSU26-1-023	HPF	sci	1.64	0.98	18.79	0.91	64		Yes
0030	LFC Cal	06:09	106.5			HPF	cal							Yes
0031	parallel	06:14	915.9	6.7	G26-1-002	HPF	sci	1.84	1.40	19.02	0.87	101		Yes
virus0000015_01	parallel	06:14	1959			VIRUS	sci							Yes
0032	parallel	06:30	915.9	0.7	G26-1-002	HPF	sci	1.85	1.25	18.63	0.87	85		Yes
0033	LFC Cal	06:47	106.5			HPF	cal							Yes
virus0000016_01	parallel	07:00	2047			VIRUS	sci							Yes
0034	parallel	07:01	969.1	0.8	PSU26-1-023	HPF	sci	2.05	1.19	18.77	0.88	4	Issue with wave front sensor, target drifted off the science fiber.	No
0035	parallel	07:18	969.1	0.8	PSU26-1-023	HPF	sci	1.99	1.17	18.32	0.73			No
0036	LFC Cal	07:36	106.5			HPF	cal							Yes
virus0000017_01	parallel	07:40	2047			VIRUS	sci							Yes
0037	parallel	07:41	969.1	6.8	PSU26-1-023	HPF	sci	1.85	1.35	18.59	0.99	76		Yes
0038	parallel	07:58	969.1	0.8	PSU26-1-023	HPF	sci	1.91	1.28	18.39	0.96	65		Yes
0039	LFC Cal	08:16	106.5			HPF	cal							Yes
lrs20000019_01	BD+210607_056_W	08:20	30	6.5		LRS2	spec	2.15	1.46	17.94	0.81			Yes
lrs20000020_01	BD+210607_066_W	08:25	15	4.8		LRS2	spec	2.12	1.35	17.82	0.92			Yes
virus0000018_01	parallel	08:30	1145			VIRUS	sci							Yes
0040	parallel	08:31	521.9	5.3	UT26-1-015	HPF	sci	1.93	1.38	18.15	0.92	121		Yes
0041	parallel	08:40	521.9	0.3	UT26-1-015	HPF	sci	1.89	1.40	18.29	0.93	129		Yes
0042	parallel	08:59	245	9.9	UT26-1-015	HPF	sci	1.82	1.37	16.38	0.89	392	Sky brightness brighter than 18 mag, too close to moon.	Yes
virus0000019_01	parallel	09:08	2047			VIRUS	sci							Yes
0043	parallel	09:09	969.1	5.8	UT26-1-015	HPF	sci	1.91	1.40	17.69	0.91	223	Sky brightness brighter than 18 mag, too close to moon.	No
0044	parallel	09:26	969.1	0.8	UT26-1-015	HPF	sci	1.73	1.20	17.61	0.89	219	Sky brightness brighter than 18 mag, too close to moon.	No
0045	parallel	09:48	245	5.9	UT26-1-015	HPF	sci	1.98	1.31	17.16	0.96	395	Sky brightness brighter than 18 mag, too close to moon.	No
virus0000020_01	flat_ldls_long	09:59	15			VIRUS	cal							Yes
virus0000020_02	flat_ldls_long	10:01	15			VIRUS	cal							Yes
virus0000020_03	flat_ldls_long	10:02	15			VIRUS	cal							Yes
virus0000021_01	Cd-A	10:03	15			VIRUS	cal							Yes
virus0000021_02	Cd-A	10:05	15			VIRUS	cal							Yes
virus0000021_03	Cd-A	10:06	15			VIRUS	cal							Yes
virus0000022_01	Hg	10:08	15			VIRUS	cal							Yes
virus0000022_02	Hg	10:09	15			VIRUS	cal							Yes
virus0000022_03	Hg	10:11	15			VIRUS	cal							Yes
lrs20000021_01	bias	10:13	0			LRS2	cal							Yes
virus0000023_01	bias	10:13	0			VIRUS	cal							Yes
lrs20000021_02	bias	10:14	0			LRS2	cal							Yes
lrs20000021_03	bias	10:14	0			LRS2	cal							Yes
virus0000023_02	bias	10:14	0			VIRUS	cal							Yes
virus0000023_03	bias	10:15	0			VIRUS	cal							Yes
lrs20000021_04	bias	10:15	0			LRS2	cal							Yes
virus0000023_04	bias	10:16	0			VIRUS	cal							Yes
lrs20000021_05	bias	10:16	0			LRS2	cal							Yes
virus0000023_05	bias	10:17	0			VIRUS	cal							Yes
lrs20000021_06	bias	10:17	0			LRS2	cal							Yes
virus0000023_06	bias	10:17	0			VIRUS	cal							Yes
lrs20000021_07	bias	10:18	0			LRS2	cal							Yes
virus0000023_07	bias	10:18	0			VIRUS	cal							Yes
lrs20000021_08	bias	10:19	0			LRS2	cal							Yes
virus0000023_08	bias	10:19	0			VIRUS	cal							Yes
lrs20000021_09	bias	10:20	0			LRS2	cal							Yes
virus0000023_09	bias	10:20	0			VIRUS	cal							Yes
lrs20000021_10	bias	10:21	0			LRS2	cal							Yes
virus0000023_10	bias	10:21	0			VIRUS	cal							Yes
lrs20000021_11	bias	10:22	0			LRS2	cal							Yes
virus0000023_11	bias	10:22	0			VIRUS	cal							Yes
0046	LFC Cal	10:29	106.5			HPF	cal							Yes
virus0000024_01	parallel	10:29	360			VIRUS	sci							Yes
lrs20000022_01	parallel	10:29	360	4.0	UT26-1-016	LRS2-R	sci	1.89	1.30	18.17	0.99			Yes
0047	LFC Cal	10:32	106.5			HPF	cal							Yes
0048	LFC Cal	10:40	106.5			HPF	cal							Yes
lrs20000023_01	parallel	10:40	180	5.0	UT26-1-016	LRS2-B	sci	1.70	1.24	18.11	0.91			Yes
0049	parallel	10:48	74.5	4.8	PSU26-1-011	HPF	sci	1.87	1.44	18.54	0.87	550		Yes
0050	parallel	10:58	74.5	8.8	PSU26-1-011	HPF	sci	1.69	1.42	16.86	0.94	456		Yes
virus0000025_01	parallel	11:03	360			VIRUS	sci							Yes
0051	LFC Cal	11:04	106.5			HPF	cal							Yes
lrs20000024_01	parallel	11:04	360	5.0	UT26-1-016	LRS2-R	sci	1.71	1.26	18.27	0.92			Yes
0052	LFC Cal	11:06	106.5			HPF	cal							Yes
0053	LFC Cal	11:13	106.5			HPF	cal							Yes
lrs20000025_01	parallel	11:13	180	3.0	UT26-1-016	LRS2-B	sci	1.85	1.09	18.22	0.99			Yes
0054	parallel	11:21	74.5	4.8	PSU26-1-011	HPF	sci	1.66	1.39	18.67	0.95	513		P4
0055	parallel	11:28	74.5	6.8	PSU26-1-011	HPF	sci	1.63	1.11	17.52	0.85	412		Yes
0056	LFC Cal	11:46	106.5			HPF	cal							Yes
lrs20000026_01	parallel	11:46	360			LRS2	eng							Yes
virus0000026_01	2025N1_20251206_000_E	11:46	360	16.0	ENG26-1-000	VIRUS	eng	2.46	1.79	18.30	1.03		Missed one or two 1.3" fiducial offsets during first guider switch, may have affacted comet position on IFU.	Yes
0057	LFC Cal	11:48	106.5			HPF	cal							Yes
lrs20000026_02	parallel	11:53	360			LRS2	eng							Yes
virus0000026_02	2025N1_20251206_000_E	11:53	360	1.0	ENG26-1-000	VIRUS	eng	2.42	1.78	18.71	1.15			Yes
lrs20000026_03	parallel	12:00	360			LRS2	eng							Yes
virus0000026_03	2025N1_20251206_000_E	12:00	360	1.0	ENG26-1-000	VIRUS	eng	2.62	1.75	18.88	1.04		Image quality slightly above 2.5".	Yes
lrs20000027_01	parallel	12:12	1800			LRS2	eng							Yes
virus0000027_01	2025N1_20251206_000_E	12:12	1800	6.0	ENG26-1-000	VIRUS	eng	2.46	1.57	18.98	0.89		Initial RA/Dec coordinates were for 11:20 UT rather than the start time of this exposure.	Yes
0058	LFC Cal	12:13	106.5			HPF	cal							Yes
0059	LFC Cal	12:15	106.5			HPF	cal							Yes
0060	LFC Cal	12:17	106.5			HPF	cal							Yes
lrs20000028_01	bias	12:44	0			LRS2	cal							Yes
virus0000028_01	bias	12:45	0			VIRUS	cal							Yes
virus0000029_01	Cd-A	12:49	15		ENG26-1-002	VIRUS	cal							Yes
virus0000030_01	Hg	12:50	15		ENG26-1-002	VIRUS	cal							Yes
0061	Dark	13:18	319.5			HPF	cal							Yes
0062	Quartz FCU	13:30	74.5			HPF	cal							Yes
0063	Quartz FCU	13:31	74.5			HPF	cal							Yes
0064	Quartz FCU	13:33	74.5			HPF	cal							Yes
0065	Quartz FCU	13:35	74.5			HPF	cal							Yes
0066	Quartz FCU	13:37	74.5			HPF	cal							Yes
0067	Quartz FCU	13:38	74.5			HPF	cal							Yes
0068	Quartz FCU	13:40	74.5			HPF	cal							Yes
0069	Alpha Bright Cal	13:42	85.2			HPF	cal							Yes
0070	Alpha Bright Cal	13:44	85.2			HPF	cal							Yes
0071	Alpha Bright Cal	13:46	85.2			HPF	cal							Yes
0072	Alpha Bright Cal	13:48	85.2			HPF	cal							Yes
0073	LFC FCU	13:51	106.5			HPF	cal							Yes
0074	LFC FCU	13:53	106.5			HPF	cal							Yes
0075	LFC FCU	13:56	106.5			HPF	cal							Yes
0076	LFC FCU	13:58	106.5			HPF	cal							Yes
0077	LFC FCU	14:00	106.5			HPF	cal							Yes
0078	LFC FCU	14:03	106.5			HPF	cal							Yes
0079	LFC Cal	14:06	106.5			HPF	cal							Yes
0080	LFC Cal	14:08	106.5			HPF	cal							Yes
0081	Etalon Cal	14:16	159.8			HPF	cal							Yes
0082	Etalon Cal	14:19	159.8			HPF	cal							Yes
0083	Etalon Cal	14:22	159.8			HPF	cal							Yes
0084	Etalon Cal	14:25	159.8			HPF	cal							Yes
0085	UNe Slave Cal	14:29	426			HPF	cal							Yes
0086	UNe Slave Cal	14:36	426			HPF	cal							Yes
0087	UNe Slave Cal	14:44	426			HPF	cal							Yes
0088	UNe Slave Cal	14:52	426			HPF	cal							Yes
0061	LFC Cal	22:29	106.5			HPF	cal							Yes
lrs20009900_01	bias	22:42	0			LRS2	cal							Yes
virus0009900_01	flat_Qth	22:43	20			VIRUS	cal							Yes
virus0009901_01	bias	22:44	0			VIRUS	cal							Yes
lrs20009901_01	flat_ldls_long_B	22:45	20			LRS2	cal							Yes
virus0009902_01	dark	22:46	15			VIRUS	cal							Yes
lrs20009902_01	Cd-A_B	22:47	29			LRS2	cal							Yes
lrs20009903_01	FeAr_R	22:49	15			LRS2	cal							Yes
lrs20009904_01	Hg_B	22:50	15			LRS2	cal							Yes
0062	Dark	22:52	319.5			HPF	cal							Yes
0063	Quartz FCU	22:59	74.5			HPF	cal							Yes
0064	Quartz FCU	23:01	74.5			HPF	cal							Yes
0065	Quartz FCU	23:02	74.5			HPF	cal							Yes
0066	Quartz FCU	23:04	74.5			HPF	cal							Yes
0067	Quartz FCU	23:06	74.5			HPF	cal							Yes
0068	Quartz FCU	23:08	74.5			HPF	cal							Yes
0069	Quartz FCU	23:09	74.5			HPF	cal							Yes
0070	Alpha Bright Cal	23:12	85.2			HPF	cal							Yes
0071	Alpha Bright Cal	23:14	85.2			HPF	cal							Yes
0072	Alpha Bright Cal	23:16	85.2			HPF	cal							Yes
0073	Alpha Bright Cal	23:18	85.2			HPF	cal							Yes
0074	LFC FCU	23:20	106.5			HPF	cal							Yes
0075	LFC FCU	23:23	106.5			HPF	cal							Yes
0076	LFC Cal	23:25	106.5			HPF	cal							Yes
0077	LFC Cal	23:28	106.5			HPF	cal							Yes
0078	Etalon Cal	23:30	159.8			HPF	cal							Yes
0079	UNe Slave Cal	23:34	426			HPF	cal							Yes
lrs20000015_01	dark	23:35	360			LRS2	cal							Yes
virus0000013_01	dark	23:35	360			VIRUS	cal							Yes
lrs20000015_02	dark	23:41	360			LRS2	cal							Yes
0080	UNe Slave Cal	23:42	426			HPF	cal							Yes
virus0000013_02	dark	23:42	360			VIRUS	cal							Yes
lrs20000015_03	dark	23:48	360			LRS2	cal							Yes
virus0000013_03	dark	23:48	360			VIRUS	cal							Yes
0081	UNe Slave Cal	23:50	426			HPF	cal							Yes
0082	UNe Slave Cal	23:57	426			HPF	cal							Yes

Previous Day:		Dec 05, 2025 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