Using the Time Box for precise timing of

Using the Time. Box for precise timing of astronomical phenomena using digital video devices Cesar VALENCIA GALLARDO, Ph. D. Time. Box General Manager Astrometry/photometry of Solar System objects after the Gaia project. 18 October 2015. Observatoire de Paris

UTC time in astronomy Get the UTC (Coordinated Universal Time) from GPS satellites with great precision (200 n. Sec UTCOP, 1 PPS). Astronomy • Astrometry. • PHEMU’s. • Occultations (Asteroid, TNO, Planets and Moon) • Pulsar timing. PC time synchronization. SYRTE (CNRS, Observatoire de Paris) Atomic Clock tests.

UTC precision timing using Digital video devices Amateur CCD and CMOS Cameras are digital Planetary imaging, Autoguiding, Occultations, etc… Basler TIS (DMK) IDS ZWO New CMOS image sensors and Cameras arriving in the market! Digital Raptor Kite EMCCD Professional CCD, EMCCD and s. CMOS digital Andor Neo 5. 5 s. CMOS Photonics Evolve EMCCD Windows and Mac OSXGenika (Windows) ~90. 5% Windows ~7. 72% Mac OS X ~1. 74% Linux ~1. 37% Others [8] https: //www. netmarketshare. com/operating-system-market-share. aspx? qprid=10&qpcustomd=0&qpsp=201&qpnp=1&qptimeframe=M

Time. Box: Precise timing of astronomical phenomena using digital video devices Time. Box is a device designed to date a PC/Server time and digital video recordings with the Coordinated Universal Time (UTC). The Time. Box was primarily designed for precise timing of astronomic phenomena.

LED firing Use the time. BOX LED to insert the UTC time on any video recording: Features: ü Low delay (<1 m. Sec) from UTC. ü Time-controlled pulse. ü Disable the 59 th second firing (optional).

LED firing Stream + LED

Computer time synchronization Use the time. BOX to synchronize the PC time with the UTC. Features: ü One-click synchronization of the PC clock. ü Precise (± 2 milliseconds UTC). ü Serial latency estimation to correct the conversion and transmission delay. ü PC time drift measured over time.

Computer time synchronization Stream Sync +

<1 msec UTC precision Genika + Time. Box computer mode

Example: PHEMU 04 mars 2015 Europe eclipse IO Duration 6. 8 min and Dmag 0. 849 Newtonian Skywatcher 150 mm (f/5) with Eq 3 -2 mount + Camera Basler 640100 gm (1/4” CCD). Time. Box (Computer mode) + Genika Astro in free run. 10 fps, 40 msec exposure and Gain 500 (max 3500).

Triggering Use the time. BOX to trigger UTC-phased frames of selected CCD/CMOS cameras. Features: ü Logic square pulses (3. 3 v). Optional (Trigger Plus and Time. Box PRO): 6 v/9 v/11 v. ü Low delay (<1 m. Sec UTC), Low jitter (<25 m. Sec UTC). ü Phase constant pulses. ü Wide range frequency: 0. 1 -1 and 7 -60 Hz.

Triggering Stream Trigger +

Frame timing using the LOG file: Genika to microsecond precision Image stream LOG file Easy determination of each frame UTC time HH: mm: sss. mmm

Benchtest: Watec 910 HX/GPS inserter (analogic) vs Raptor KITE EMCCD/Genika/Time. Box Trigger mode (digital) The general average is +0. 2 millisecond. The extremes are -42 ms (i 4) and 32 ms (e 4) , the order of the duration of a video image. No systematic difference between the two time frames is detected (up to 6 msec at 95% confidence). Jean Lecacheux (LESIA, Observatoire de Paris) and François Colas (IMCCE, Observatoire de Paris). La Blaque FRANCE, 10 juin 2015.

Features: Time. BOX PRO: All in one for professional users and advanced amateurs ü Integrated Trigger PLUS for triggering between 312 v at a given current (12120 m. Amp). ü Low and High frequency triggering with a single switch. ü Custom triggering Frequencies (0. 1 -60 Hz). ü Support for Professional applications and Cameras (Basler, IDS, Raptor, among others) with Genika Astro.

Occultation Kit PRO: Time. Box PRO + Raptor EMCCD Kite + Genika Astro Pro • Camera EMCCD Kite Raptor Photonics (TI TC 247 ½ ‘’ 658*496 pixels 10 x 10 mm, 50 fps) + power cable. • Frame grabber Camera. Link EPIX for Express Card 34/54 mm. • A 5 m cable Camera. Link SDR-MDR. • Time. Box Pro + USB cable, GPS antenna and BNC cable for triggering and Software. • Genika Astro Pro free run/trigger mode. The license allows to support up to 2 cameras in addition (among the supported manufacturers). • A portable workstation type 15 '' (Dell , Lenovo or HP to availability) with an Express card slot , 8 GB of memory, a i. Core processor and a 180 GB SSD to a minimum • Pelican suitcase transportation. 1495 compatible with aircraft cabin 11700€ HT:

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