NINETEENTH TRANS-TASMAN SYMPOSIUM ON OCCULTATIONS
in Whakatane, NZ and via Zoom
2025 May 12

(Updated 23 April 2025)

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UPDATE – 23 April 2025

The Trans-Tasman Occultation Alliance held the Nineteenth Trans-Tasman Symposium on Occultations (TTSO19) on 12 May 2025. TTSO19 will be held in conjunction with the 2025 RASNZ Conference in Whakatane, New Zealand. As well as the physical meeting, it will be accessible online using Zoom.

Registration to attend the physical meeting is done through the RASNZ Conference website - https://www.rasnzconference.org.nz/

Anyone interested in presenting to TTSO19 either in person or via Zoom is encouraged to contact the Director at Director@occultations.org.nz

We will be calling for ‘expressions of interest’ for online attendance closer to the date.

The draft Program for TTSO19 is as below:

UTC Sun 11/5/2025	AEST	NZST	Duration (min)	Speaker	Title	Description
	Mon 12/5/2025
21:00:00	7:00:00	9:00:00	0:10:00	S. Kerr	Welcome and Introduction
21:10:00	7:10:00	9:10:00	0:30:00	S. Kerr	Round Up of TTOA Observing	Reviewing the results of observations by TTOA through 2024 with summary and statistics
21:40:00	7:40:00	9:40:00	0:40:00	D. Herald	World Wide Result Roundup
22:20:00	8:20:00	10:20:00	0:30:00	Morning Break
22:50:00	8:50:00	10:50:00	0:25:00	V. Bao	A beginners perspective on Occultations
23:15:00	9:15:00	11:15:00	0:45:00	M. Camilleri	It's about time!	How accurate and reliable is your timing source.
0:00:00	10:00:00	12:00:00	1:00:00	Lunch
1:00:00	11:00:00	13:00:00	1:30:00	M. Camilleri	PC Disciplined Timing	A workshop (hands on encouraged) on setting up a GPS disciplined PC for occultation recording using digital cameras.
2:30:00	12:30:00	14:30:00	0:30:00	Afternoon Break
3:00:00	13:00:00	15:00:00	0:30:00	D. Herald	Handling double star observations
3:30:00	13:30:00	15:30:00	0:30:00	S. Kerr	Extracting better light curves	A walk through the various options in Tangra to get a better light curve from difficult videos.
4:00:00	14:00:00	16:00:00	0:30:00	S. Kerr	Upcoming Occultations and Campaigns
4:30:00	14:30:00	16:30:00	0:10:00	S. Kerr	Wrap Up

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