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The NIXT, or Normal Incidence X-ray Telescope, was a sounding rocket payload flown in the 1990s by Professor Leon Golub of the Smithsonian Astrophysical Observatory, to prototype normal-incidence (conventional) optical designs in extreme ultraviolet (EUV) solar imaging. In the EUV, the surface of the Sun appears dark, and hot structures in the solar corona appear bright; this allows study of the structure and dynamics of the solar corona near the surface of the Sun, which is not possible using visible light.
NIXT and its sister rocket, the MSSTA, were the prototypes for all normal-incidence EUV imaging instruments in use today, including SOHO/EIT, TRACE, and STEREO/SECCHI.
In 1989, a NIXT sounding rocket launch detected soft X-Rays coming from a Solar flare.[1] It was launched when the solar event was detected to allow high resolution imaging of the Sun's corona.[1] Results from the observations were presented in 1990 in different papers.[1] NIXT was launched throughout the early 1990s and a paper summarizing the results from these mission was published in 1996.[2]
A successor program to NIXT, was the TXI (Tunable XUV Imager) sounding rocket program[2][3]
^ abcHerant, M.; Pardo, F.; Spiller, E.; Golub, L. (1991). "1991ApJ...376..797H Page 797". The Astrophysical Journal. 376: 797. Bibcode:1991ApJ...376..797H. doi:10.1086/170328.
^ abGolub, Leon (September 1996). "A Normal Incidence X-ray Telescope (NIXT) Sounding Rocket Payload" (PDF).
^Brinton, John; Golub, Leon (July 2004). "The Tunable XUV Imager (TXI) Sounding Rocket Payload".
The NIXT, or Normal Incidence X-ray Telescope, was a sounding rocket payload flown in the 1990s by Professor Leon Golub of the Smithsonian Astrophysical...
imaging with multilayer EUV optics was pioneered in the 1990s by the MSSTA and NIXT sounding rockets, each of which flew on several five-minute missions into...
for solar imaging in the late 1980s and 1990s, notably by the MSSTA and NIXT sounding rocket payloads. The telescope is of Cassegrain design, 1.6 m (5 ft...
radiation at normal incidence is possible. This technology was pioneered by the NIXT and MSSTA sounding rockets in the 1990s, and it has been used to make telescopes...
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received during the flight. The payload was recovered. Spaceflight portal NIXT (Sounding rocket program) MSSTA "NASA-Funded Sounding Rocket Will Take 1500...
in the Middle English of Chaucer's time the word night was phonemically /nixt/; later the /x/ was lost, but the /i/ was lengthened to /iː/ to compensate...
have been required for its many telescopes. MSSTA and its sister rocket, NIXT, were prototypes for normal incidence EUV imaging telescopes that are in...
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pronounced as [x], and not differentiated into [x] and [ç], e.g. in nicht [nɪxt] instead of [nɪçt] 'not'. For some speakers, /k/ is pronounced as velar affricate...
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and X-rays by many satellites (Pioneer 5, 6, 7, 8, 9, Helios, Skylab, SMM, NIXT, Yohkoh, SOHO, TRACE, Hinode). The emitting plasma is almost completely ionized...
retrieved on 13 April 12 April 17:18 Black Brant IX White Sands LC-36 NASA NIXT NASA Suborbital Solar 12 April Successful Apogee: 226 kilometres (140 mi)...
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