HET Night Report Reader

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Civil Date	Ephemerides
2018-02-26	Sunset			Sunrise			Moon
	Set	12°	18°	18°	12°	Rise	Rise	Set
	00:56	01:45	02:13	12:04	12:32	13:21	-	11:40
Night Length	9:51		Sunset Temperature

On-Duty Personnel
Resident Astronomer	Telescope Operator	OPS Engineer	Day Ops
Stephen Odewahn	Emily Bevins	-	-

Overlaps		none

Other Personnel	none

Guests	HPF and NIST crew

Open/Close Log
Open time	Outdoor temp	Truss temp	Close time	Reason	Time open
00:44	13.2	13.2	12:48	twilight	12:04
Total Time Open					12:04

Program	Night Priority	Engineering
02:13	Engineering (hpf)

Stack Data
Start	Stop	ee50	ee80	Hefi Focus	Mars Focus	Outside Temp	Dome Temp	Truss Temp	Wind Direction	Wind Speed	Stack Type
00:51	02:04	0.47	0.72	895	-1986	11.7	11.7	12.4	166	10	First of Night
↪ Comments			Large temperature change from last night. Many segments out as well as ~800 GRoC made before able to stack.
06:57	07:00	1.16	71	1005	-932	9.7	9.7	10.2	193	14	Post-Observing
↪ Comments			Late restack for HPF work and potential for incoming clouds.
07:01	07:27	0.45	0.69	895	-421	9.4	9.4	9.9	191	14	Stack/Re-stack

Problem Reports					no PRs

Ops Comments	none

TO Comments	Periodic clouds throughout the night. Night devoted to HPF testing.

RA Comments	Moderately cloudy at sunset. Night devoted to HPF engineering. No LRS2/VIRUS skyflats at sunset.

Observations
File	Target/QID	Exp Start	Exposure	Overhead	Program	Instrument Configuration	Data Type	IQ	Dimm	SkySBrt	Skytrans	SNR	Comments	Charge
lrs20009994_01	bias	23:09	0			LRS2	cal				S			Yes
lrs20009995_01	FeAr_R	23:14	33.2			LRS2	cal				S			Yes
lrs20009996_01	flat_Qth_R	23:15	33			LRS2	cal				S			Yes
lrs20009997_01	dark	23:17	300			LRS2	cal				S			Yes
virus0008500_01	bias	23:31	0			VIRUS	cal				S			Yes
virus0008501_01	bias	23:34	0			VIRUS	cal				S			Yes
virus0008502_01	Hg	23:40	22.3			VIRUS	cal				S			Yes
virus0008503_01	Cd-A	23:41	162.7			VIRUS	cal				S			Yes
virus0008504_01	flat_ldls_long	23:44	22.2			VIRUS	cal				S			Yes