that's spectacular ... when did you start on the design. I suspect this was a long time coming and you're feeling pretty good today.I was one of the designers on the processor that controls the landing and rover.... we were all pretty nervous watching it on a big zoom call at work. I can't imagine how nervous the NASA folks are when they do things like this. (If you're curious, the processor is a BAE Systems RAD750, https://en.wikipedia.org/wiki/RAD750)
Well the base design actually probably was started around 1995... with IBM and Motorola making the PowerPC 750 processor used in the colorful 1997 iMac (if you remember those). That design was licensed, and reworked for space mission starting around 2000 I think (initially by Lockheed Martin, then BAE Systems), which would have been when I started working on it. We redid all the circuitry, but maintained the same architecture and function.that's spectacular ... when did you start on the design. I suspect this was a long time coming and you're feeling pretty good today.
Yes they can... to some extent it's necessary because of the high cost to create small volume designs - you can't operate like the commercial folks. If Intel only sold as many processors as we do, each would cost millions of dollars. They only get cheap through the huge numbers produced.It somewhat kills me the reliability (knock on wood) of so many "hi tech" spectacular missions are older technology. It just shows how good designs by good designers can bring about some amazing tech.
Absolutely incredible that they could get this photo. Keep in mind that radio commands currently take about ~11 minutes to reach Mars.February 19, 2021
The descent stage holding NASA’s Perseverance rover can be seen falling through the Martian atmosphere, its parachute trailing behind, in this image taken on Feb. 18, 2021, by the High Resolution Imaging Experiment (HiRISE) camera aboard the Mars Reconnaissance Orbiter. The ancient river delta, which is the target of the Perseverance mission, can be seen entering Jezero Crater from the left.
HiRISE was approximately 435 miles (700 kilometers) from Perseverance and traveling at about 6750 mile per hour (3 kilometers per second) at the time the image was taken. The extreme distance and high speeds of the two spacecraft were challenging conditions that required precise timing and for Mars Reconnaissance Orbiter to both pitch upward and roll hard to the left so that Perseverance was viewable by HiRISE at just the right moment.
The Mars Reconnaissance Orbiter that took that photo was launched in 2005, and actually has a variant of the same processor that's in Perseverance. It has sent back around 7 million photos of Mars.I think the coolest image is this one showing it descending on a parachute:
Absolutely incredible that they could get this photo. Keep in mind that radio commands currently take about ~11 minutes to reach Mars.
Well, actually...Interesting that the parachute is colored at all. I guess there is color to facilitate failure investigation if needed?
I enjoy how teams put hidden messages into their toys ... Mars Curiosity tires/wheels had JPL spelled out in morse code in it's pattern (holes).Well, actually...
Early macs (or maybe it was pre-release ones I saw when working for Apple) had the signatures of the team on the inside of the case. I have an Apple //e pre-release motherboard with the names of the 4 designers in the artwork.