Sunday (11-August-2019) — New Jersey

Backyard Summertime Night Sky Over New Jersey.

Night two trying to capture some of the Perseid Meteor Shower. This time with two cameras out 1) Nikon D810a camera with a 8-15 mm fisheye lens (ISO 800, 8 mm, f/4, 8 sec) and 2) Nikon D850 with a 19 mm f/4 PC-E lens (ISO 800, 19 mm, f/4, 8 sec). After reviewing the images, not must luck. In order to process this many images I have four Surface computers running full time and at full power. By full power, I mean all four cores on the Microsoft Surface Studio 2 (with a dedicated video processor) are running hot — close to 100 °C (45 watts). The computer automatically shuts down if these temperatures are exceeded. The Microsoft Surface Book 2 (with a dedicated video processor) has this bad habit when being stressed to run only on the battery until the battery runs out even though it is plugged into an external power supply. So I had to go back and forth between the four computers to monitor how they were doing. My power usage for the day was nearly 4 kWh larger just because of the extra processing work being done by the computers and servers. Just glad it was a bit cooler outside and the sun was out most of the day to charge the solar panels.


Click on the above image to access the individual images in the slideshow.



Click on the above image to access the individual images in the slideshow.


Daily Electric Energy Used (51.5 kWh) from Sense and Daily Solar Electric Energy Produced (77.1 kWh) from SolSystems and Locus Energy. Just glad that it was cooler outside, even though the sun was out most of the day. Electrical Energy surplus for the day was 25.6 kWh. The weekly stats 384 kWh used, 440 kWh generated for a surplus of 56 kWh.

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Author: David Mathre

I am a scientist by training (Eckerd College, BSc; Caltech, Ph.D.). I worked for 27 years as a Chemist in the Pharmaceutical Industry developing processes to manufacture medicines for human and animal health. I now spend my time as a photographer and world traveler. My interests include the natural world, wildlife, landscapes, sky, and seascapes, travel, and astrophotography. I look for unique ways of viewing the world and presenting my images. I have traveled to over 55 countries in six continents, often on Semester at Sea voyages. While at home in New Jersey, I spend time on home renovation and expansion of a wildflower garden/meadow.

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