In order to better communicate with our spacecraft we are building our third ground station on the Cal Poly campus. This new ground station will feature quad phased yagi antennas with ability to transmit up to 1.5KW. The new system will be using the Cal Poly developed systemboard as our radio. It will also feature automatic pass operations. We recently began construction of the new groundstation on the roof of building 192 with hopes of finishing by the end of the summer.
A particularly exciting and educational aspect of PolySat’s comprehensive production process is the design and in-house manufacturing of various structural components. ExoCube, PolySat’s most recent project, implements a modification of the flight-proven and student-designed HyperCube structure that was recently flown as a 1U form-factor for the IPEX mission. To increase educational benefits and expand the technical capabilities of the PolySat lab, many of the components used within the ExoCube mechanical structure have been manufactured by PolySat students using Cal Poly‘s on-campus machine shops. For the past several months, the ExoCube mechanical team has been working to finalize design and manufacturing, and we are excited to have finalized hardware that has been machined in recent weeks!
The PolySat team has been working diligently at continued improvements to the groundstation. Since the last post, we have downlinked several more images, and below are some of the best images yet!
A shot of the Hawaiian islands:
Beautiful clouds over the Pacific:
A frigid looking shot near the Pacific Rim:
All TLE images obtained using STK10
We will continue to post images as we receive them!
For the past several weeks following P-POD deployment, IPEX has been downlinking images to Cal Poly’s upgraded groundstation to verify that the imaging and communications systems are working as expected. We have recently received approval to release one of the first IPEX images captured post-deployment, and are excited to share with the community! This image was taken on December 6, 2013 at 11:05 UTC using the -Z camera while IPEX was traversing over the Australian coast, pointed southwest towards the terminator line.
The successful capture, storage, and downlink of the recent IPEX images represents an important milestone for PolySat’s technical and operational capabilities. IPEX is the first CubeSat to use PolySat’s new avionics suite, comprised of a variety of custom PCBs and a Tyvak Intrepid systemboard/comm board package. The timely and efficient downlink of one of IPEX’s high-resolution deployment images such as this one adequately verifies not only PolySat’s new avionics bus, but the recent upgrades to the Cal Poly ground station as well. We are excited to continue IPEX operations!
Obtained using STK10
12/10/2013 – 11:55PM
The payload processor and software have been activated.
12/7/2013 – 10:00AM
Japan has gotten a very clear recording of IPEX.
Check it out here: http://www.dk3wn.info/p/?p=39287
Two types of beacons can be heard in the recording, a health beacon and the morse code beacon.
12/7/2013 – 12:00AM
Image thumbnails have been downlinked from each of the five cameras along with a telemetry packet.
12/6/2013 – 8:30AM
IPEX has received over 50 packets since the launch the night before. Decoded packets indicate the satellite is so far nominal. Initial checkout is still underway and updates will be posted.
Packets are being decoded from about 1.5 degrees above the horizon
PolySat is very excited to announce the upcoming launch of IPEX! The launch is scheduled for December 5, 2013, out of Vandenberg Air Force Base, along with 11 other CubeSats.
We would greatly appreciate the help of the HAM radio community in gathering data about our satellite. To see tracking information and to submit packets, see the tab above labeled IPEX Tracking.
On August 2nd, the CP9 team performed a basic fit check and functional check out of our flight unit, which included using the solar-panel mounted sidepanels created during May. Here is a cool picture of it: