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OccuRec - Specialized OccuRec - Specialized Software for Video Software for Video Occultation RecordingOccultation Recording

Hristo PavlovHristo PavlovTTSO8, Melbourne, 21 Apr 2014TTSO8, Melbourne, 21 Apr 2014

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Integrating Cameras – Repeated Integrating Cameras – Repeated FramesFrames

Repeated MeasurementsRepeated Measurements

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Measurements - Software BinningMeasurements - Software Binning

Issues with AVI filesIssues with AVI files

• Repeated information Repeated information

• Larger file sizeLarger file size

• Measurement issues requiring binningMeasurement issues requiring binning

Recording Time Binning or Recording Time Binning or AveragingAveraging

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Composing a Clear TimestampComposing a Clear Timestamp

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Preserving VTI-OSD LinesPreserving VTI-OSD Lines

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Demo 1Demo 1OccuRec – VTI-OSD PreservationOccuRec – VTI-OSD Preservation

Demo 2Demo 2Playing and measuring AAV filesPlaying and measuring AAV files

Integration DetectionIntegration Detection

• Algorithm – Automatic DetectionAlgorithm – Automatic Detection

• Calibration and AdjustmentsCalibration and Adjustments

• Algorithm - Manual Integration RateAlgorithm - Manual Integration Rate

• Integration Rates of x1 and x2Integration Rates of x1 and x2

Demo 3Demo 3

OccuRec – Integration DetectionOccuRec – Integration Detection

Learnings from Implementing Learnings from Implementing Integration DetectionIntegration Detection

• Combining Wrong Video FieldsCombining Wrong Video Fields

• Video Grabbers have Quirks – Periodic and Video Grabbers have Quirks – Periodic and Predictable Field Combination ErrorsPredictable Field Combination Errors

Demo 4Demo 4

OccuRec – Recording SchedulerOccuRec – Recording Scheduler

On-The-Fly Tracking and MeasuringOn-The-Fly Tracking and Measuring

• Guiding and Tracking StarsGuiding and Tracking Stars• Live LightcurveLive Lightcurve

Demo 5Demo 5

OccuRec – Tracking and LightcurveOccuRec – Tracking and Lightcurve

NTP TimespamingNTP Timespaming• Enabling and Recording NTP Enabling and Recording NTP

Timestamps using OccuRecTimestamps using OccuRec

• Testing Against NTP Time ReferenceTesting Against NTP Time Reference• Testing Against HTCC Time Reference Testing Against HTCC Time Reference

(over USB)(over USB)• Testing Against IOTA-VTI Time Testing Against IOTA-VTI Time

ReferenceReference

• Timing Events Timestamped with NTP Timing Events Timestamped with NTP Time using Tangra3Time using Tangra3

Time Drift of Windows ClockTime Drift of Windows Clock

Windows Time may show large Windows Time may show large random offsets on *some* systemsrandom offsets on *some* systems

24 Hours Continuous Test – Tangra 24 Hours Continuous Test – Tangra ObservatoryObservatory

48 Hours Continuous Test48 Hours Continuous Test

Observatory ControlObservatory Control

• Telescope and Focuser control via Telescope and Focuser control via ASCOMASCOM

• Direct control of WAT-910BDDirect control of WAT-910BD

• Video Camera control via ASCOMVideo Camera control via ASCOM

Future Development …Future Development …

• Mutual events modeMutual events mode• Auto focusingAuto focusing• Auto pulse-guidingAuto pulse-guiding• Improved Observatory ControlImproved Observatory Control• ADVS – Windows SupportADVS – Windows Support• Plate-solving and field identificationPlate-solving and field identification• Fully automated and unattended Fully automated and unattended

occultation recording occultation recording

Questions?Questions?

http://www.hristopavlov.net/OccuRechttp://www.hristopavlov.net/OccuRec