T1 = T0 + 4h20: We receive the first bit of the first image on Earth.T0 + 42 mn: New Horizons sends the next image, and at T0+84 mn another one, etc.T0: New Horizons sends the first bit of an image and continues sending bits during 42 mn.The radio waves travel at about 300,000 km/s. Pluto and New Horizons are now at a distance of about 4.6 billion km. How long does it take to receive the image file? But the signal has yet to travel to Earth. . . . It takes about 42 mn to send this from the probe. How long does it take to send an image file?Ī LORRI image can be compressed aboard New Horizons, down to the size of 2.5 Mbits (depending on the content of the image). (That's not completely accurate because additional control and correction bits are added to the pixel bits. So to transmit an image it takes time: 1 kilobit image will take more or less 8 seconds, 1 megabit will take 1,000 seconds or 17 mn, etc. It says that the traffic between the probe and the Earth is possible at about 1 kb/s.
The 70 m (230 ft) NASA Deep Space Network (DSN)ĭishes are used to relay commands once it is beyond Jupiter. Besides the lowīandwidth, Pluto's distance also causes a latency of about 4.5 Rate of approximately 1 kbit/s is expected. The craft had aĬommunication rate of 38 kbit/s at Jupiter at Pluto's distance, a How slow is the communication between New Horizons and Earth?Ĭommunication with the spacecraft is via X band. Many more images are coming, some in the following days, but at only 1 image per hour, this will take months, so an image shot today might be transmitted to Earth only in several months.Īll the details in the following full (and long) answer! While the probe had more time available for transmitting images in the previous days, now that the probe is close to Pluto and its moons the high-priority task is to collect scientific data (including images) and store them aboard the probe.ĭata will be downloaded to Earth as other activities permit. If New Horizons could do the scientific work, take images, and send them at the same time, this would be great, but that's not the case. It takes about 1 hour to the probe to send one image bit by bit, and about 4 hours for the bits to travel from the probe to Earth.
Permits universities, not-for-profits, and small businesses to obtain title to inventions developed with federal fundingįederal Technology Transfer Act of 1985 (P.L.Yes, what you see in the news are recent images. Requires federal agencies to have formal technology transfer programs Stevenson-Wydler Technology Innovation Act of 1980 (P.L. To provide for the widest practicable and appropriate dissemination of information concerning its activities and results thereof Put simply: If we don't know about it, we can't share it effectively. NTRs provide a means to capture information about technical discoveries, improvements, innovations, and inventions so that NASA can disseminate it appropriately.įurthermore, several federal laws require technology transfer be pursued for new technologies developed with taxpayers dollars.
NASA's founding legislation (see "US Law - Technology Transfer" info/graphic presented below) requires the Agency to disseminate information about its work as widely as is practical and appropriate.
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