Clavius | 30000 frames @ 142fps | 2 hours after sunrise (turfpit)

Clavius | 30000 frames @ 142fps | 2 hours after sunrise

Acquisition type: Lucky imaging

A 30,000 frame capture resulting in a 2.25Gb SER video. Captured 2 hours after sunrise, winds around 5 mph. Moon altitude was 44°, 48% waning. The capture took approximately 4 minutes.

Equipment: Celestron C8 SCT, Celestron AVX Mount, Celestron Wratten #25 (red) filter, JMI Motor Focuser, QHY5LII-M camera.

Capture: AstroDMx Capture 0.61.46 (alpha) running on Linux under Fedora 30, SER, MONO8, 320x240, 30,000 frames @ 643 microseconds, gain=35%, USB Bandwidth=0, Speed=2. Capture at 142 fps.

Processing: Autostakkert!3, 200 Alignment Points, stack best 25% . GIMP for Sharpen (Unsharp Mask), Shadows-Highlights, Contrast.

The capture laptop was a Lenovo x220, i5 processor, 8Gb RAM, 480GB SSD, USB2. The capture was a stress test for an alpha release of AstroDMx - it passed.

30,000 frames is playing a numbers game to beat the 'seeing'. The top 25% of frames gave a quality rating in Autostakkert of 75% up to 100%. 7,500 frames were stacked.

Dave

Camera Log File: AstroDMx Capture (0.61.46)

--------------------------------------------

AstroDMx Mode = Hardware Acceleration

Camera Name = QHY5LII-M

Camera Format = MONO 8

Resolution = 320 x 240

Output Format = SER (8-Bit)

Capture Mode = Frame Limit

Colour Mode = Greyscale

Frame Integration = NOT ACTIVE

Exposure = 643 Microseconds

Gain = 35 % (native: 11)

Gamma = 50 % (native: 10)

Brightness = 50 % (native: 0)

Contrast = 50 % (native: 0)

USB Bandwidth = 0

USB Speed = 2

ROI Position = X = 480 Y = 360

Binning = 1x1

Flip Position = NOT ACTIVE

Bit Depth = 8-Bit

Realtime Calibration = NOT ACTIVE

Frames Saved = 30000

Average Frame Rate = 141.975 fps

Histogram Mode = LOG

Histogram Channel = Greyscale

Data Collection Started = 2019/7/25 at 7:9:3

Data Collection Ended = 2019/7/25 at 7:12:54

NB: This file should be viewed using a fixed width font

	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

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