Members of the DSOC staff react to the primary high-definition streaming video to be despatched by way of laser by the DSOC tranceiver aboard the Psyche spacecraft, practically 19 million miles from Earth, that includes a cat named Taters, on December 11, 2023 at NASA’s Jet Propulsion Laboratory in Pasadena, California. NASA on December 18, 2023 introduced it had used a state-of-the-art laser communication system on a spaceship 19 million miles (31 million kilometers) away from Earth — to ship a high-definition cat video. The 15-second meow-vie that includes an orange tabby named Taters is the primary to be streamed from deep house, and demonstrates it’s attainable to transmit the higher-data-rate communications wanted to help complicated missions similar to sending people to Mars. (Picture by Handout / NASA/JPL-Caltech / AFP)
WELLINGTON — NASA on Monday introduced it had used a state-of-the-art laser communication system on a spaceship 19 million miles (31 million kilometers) away from Earth — to ship a high-definition cat video.
The 15-second meow-vie that includes an orange tabby named Taters is the primary to be streamed from deep house, and demonstrates it’s attainable to transmit the higher-data-rate communications wanted to help complicated missions similar to sending people to Mars.
The video was beamed to Earth utilizing a laser transceiver on the Psyche probe, which is journeying to the principle asteroid belt between Mars and Jupiter to discover a mysterious metal-rich object. When it despatched the video, the spaceship was 80 occasions the space between the Earth and Moon.
The encoded near-infrared sign was acquired by the Hale Telescope at Caltech’s Palomar Observatory in San Diego County, and from there despatched to NASA’s Jet Propulsion Laboratory (JPL) in Southern California.
“One of many objectives is to exhibit the flexibility to transmit broadband video throughout tens of millions of miles. Nothing on Psyche generates video information, so we often ship packets of randomly generated check information,” stated Invoice Klipstein, the tech demo’s mission supervisor at JPL.
“However to make this vital occasion extra memorable, we determined to work with designers at JPL to create a enjoyable video, which captures the essence of the demo as a part of the Psyche mission.”
Area missions have historically relied on radio waves to ship and obtain information, however working with lasers can improve the information price by 10 to 100 occasions.
Big pounce for catkind
The ultra-HD video took 101 seconds to ship to Earth on the system’s most bit price of 267 megabits per second — quicker than most dwelling broadband connections.
“In reality, after receiving the video at Palomar, it was despatched to JPL over the web, and that connection was slower than the sign coming from deep house,” stated Ryan Rogalin, the mission’s receiver electronics lead at JPL.
So why a cat video? First, there’s the historic connection, stated JPL. When American curiosity in tv started rising within the Twenties, a statue of Felix the Cat was broadcast to function a check picture.
And whereas cats could not declare the title as man’s greatest good friend, few can dispute their number-one place on the subject of web movies and meme tradition.
Uploaded earlier than launch, the clip exhibits Tabby, the pet of a JPL worker, chasing a laser mild on a sofa, with check graphics overlayed. These embody Psyche’s orbital path and technical details about the laser and its information bit price.
Whereas laser transmission has been demonstrated in low Earth orbit and as far-off because the Moon, the Psyche mission is the primary time it’s been deployed in deep house. Aiming a laser beam from tens of millions of miles away requires extraordinarily exact “pointing,” a serious technical hurdle engineering groups needed to resolve.
The know-how demonstration even must compensate for the truth that within the time it takes for mild to journey from the spacecraft to Earth, each the probe and the planet may have moved — so the uplink and downlink lasers want to regulate for the change accordingly.
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