A new memo in our memo series is available, on the measurement of the mean lunar temperature using 2.6cm radio flux measurements.
The CCERA website has been restored to normal operation, after a “glitch” with a WP update having been, apparently, partially applied.
Some time in the 2nd week of July, our WordPress website became damaged, by mechanisms still under investigation.
You’ll be getting “404: Not Found” for almost everything from our homepage. We’re working to get functionality restored and appreciate your patience.
President, Canadian Centre for Experimental Radio Astronomy
In the winter of 2022, we were contacted by the current owners of a former NATO satellite ground terminal. The facility includes a 14m satellite dish, capable of motion in both azimith and elevation.
We have already begun the work to restore some functionality to this instrument, including changing the feed structures to include a 21cm, 10.7cm, and 611MHz feed. We have a small photo-album here:
Our near-term science goals include monitoring for a potential Black Hole merger in SDSS J1430+2303 along with FRB monitoring of the region around J1935+2154 and looking for super-giant pulses from the Crab Pulsar at J0534+2200.
On May 20, 2022, we were able to complete work to re-motorize (using new motor and controller) the elevation axis and were able to drive it under motor power up to an elevation of +20 DEG (-24 DEG in declination).
Look for more announcements as progress is made!
Owing to an unfortunate confluence of both corporate and municipal politics here in Smiths Falls, we were asked to vacate the premises we have occupied at the Gallipeau Centre since 2016.
We secured an access arrangement to a site near Rideau Ferry, ON that houses a private optical observatory, and 38 acres of flat, clear land.
The new site is much more “primitive”, and many of our activities have had to be scaled-back and/or moved to our respective private residences.
Work to restore our science capabilities is on-going, and expect further announcements as the spring and summer of 2021 progress.
This recent memorandum at http://www.ccera.ca/files/memos/ccera-memo-0012.pdf describes the equipment and techniques used to engage in routine monitoring of bright pulsars, in particular, J0332+5434. Our equipment choices have been largely dictated by our observing goals—we wish to observe J0332+5434 on a daily basis to provide data to a local university for their undergraduate-level course in astrophysics. The target pulsar is “bright” at lower frequencies, which means that an antenna with quite-modest gain is required to observe it. All of the radio astronomy signal processing at CCERA is based on the Gnu Radio 5 software DSP platform. The pulsar signal-processing chain is no different.
In support of our Deuterium survey project CCERA has acquired a surplus 5.5M dish antenna that was formerly deployed at the Smiths Falls Gateway of the Globalstar network. Thanks to the careful and precise work of the expert salvage technicians at Falls Iron and Metal we were able to acquire just the critical reflector surface, without the exceedingly-heavy and expensive equipment hub and mounting hardware, which made the whole assembly weight roughly 1800Kg–much to heavy and cumbersome for CCERA to manage. The surface is made in 12 equal segments that bolt together, and combined weigh in at less than 400kg–this will make it vastly easier to handle, and to create a mounting arrangement for it.
An external photo-album shows the various pieces, and the final disposition of the reflector segments at the CCERA lab site.
Look for updates in the coming weeks as we assemble the reflector, and design and build a mount that will have it pointing full-time at the North Celestial Pole in support of our Deuterium survey.
We have taken advantage of part of our lab space to design and fabricate protective face-masks for our local community here in Smiths Falls. Part of our lab space has been converted into a “mask lab”, seen below.
Masks, including the filtration layer, are made from non-woven materials, included “up-cycled” materials normally used in other applications.
Typical materials are shown below, with a number of filter+liner segments ready to be sewn to the outer layers.
Here is a mask being made, with a custom “unicorn” stamp for a friend of CCERA.
The outer layer is a non-woven polypropylene fabric, often used to make inexpensive reusable shopping bags, but it also has excellent properties for reusable, washable, protective masks.
If you are interested in receiving a mask, they are available for a reasonable cost–please send an inquiry to firstname.lastname@example.org
The 2020 Open Day update presentation was captured at last minute on video and is available in 3 parts on YouTube.
Sorry about the sound quality.