[current map by Steve Preston showing the path]
Information on different methods to time occultations
Timing CCD video with a smartphone flash timing app
Runcam Mighty Mini Systems for the May 10th occultation of 14 Cancri by (363) Padua
(may work for this event also)
Reporting your observation
Link to this event
2020 Jul 27 UT, (530) Turandot
Pre-Point charts ZIP file (UNDER CONSTRUCTION)
Finder charts ZIP file  (UNDER CONSTRUCTION)
Summary (from asteroidoccultations.com)

On 2020 Jul 27 UT, the 85 km diameter asteroid (530) Turandot will occult a
10.2 mag star in the constellation Capricornus for observers along a path
across USA, Mexico.

In the case of an occultation, the combined light of the asteroid and the star
will drop by  2.25 mag to 12.33 mag (the magnitude of the asteroid) for at most
8.9 seconds.

This update is based on, astrometry for the asteroid kindly provided by the IAU
Minor Planet Center.

This work has made use of data from the European Space Agency (ESA)
mission Gaia (http://www.cosmos.esa.int/gaia), processed by the
Gaia Data Processing and Analysis Consortium
(DPAC, http://www.cosmos.esa.int/web/gaia/dpac/consortium).
Funding for the DPAC has been provided by national institutions, in
particular the institutions participating in the Gaia Multilateral Agreement.

The event at a glimpse
----------------------
    * Rank: 99
    * date and approx. time of event: 2020 Jul 27, 08:27 - 2020 Jul 27, 08:48
    * geocentric midpoint of event [JD]: 2459057.86000417
    * magnitude of target star: 10.23
    * magnitude drop [mag]: 2.25
    * estimated maximum duration [s]: 8.9
    * Moon: 49 % sunlit, 93 distance
    * Sun: 178 distance
    * rough path description: USA, Mexico

Additional comments
-------------------
wide double star
===================