TXI Sounding Rocket Program

GIF:
Image of the corona at 3 MK
Coronal Image in Ni XVII

For a summary of TXI images click here

Sounding Rocket Flight, 6/21/01
QUICK LOOK at some of the EUV Images of the corona from the June 21, 2001, TXI Flight
Flight Time Wavelength Exposure
87 sec 174.5 Å
105 sec 171.1 Å
120 sec 174.5 Å
169 sec 178.4 Å
184 sec 180.4 Å Image 7
233 sec 182.4 Å
248 sec 192.4 Å Image 9
263 sec 193.5 Å Image 11
NEW! Full disk image of Ni XVII at 249 Å
319 sec 195.1 Å
202.0 Å
203.8 Å
392 sec 193.5
180.4 Å
420 sec 174.5 Å
    Objectives
  • Demonstrate the TXI design
  • Image the multi-temperature solar corona at high resolution
  • Search for coronal flows & polarization
    Mission Enabling Technology
  • Tuneable monochromator moves narrow (10 A) passband through the broad passband on the primary mirror
  • Large format (2k×2k) backside thinned CCD allows 1.0"/pixel resolution with full sun imaging
    Status
  • Launch June 21 2001
  • Fabrication completed Spring 2000
    Measurement Strategy
  • The TXI will sweep through the spectral region 170-210Å, obtaining images in a wide range of spectral lines (see Table 1 and figure below) with formation temperatures varying smoothly from .25MK to 3Mk, plus 20MK.
  • A pair of images at 180 ± 2Å will measure flows
  • A pair of images with 90° rotation around sun center will determine polarization






Diagram of the TXI Telescope
4k GIF: Drawing of the TXI telescope, showing filters, mirrors and ccd camera



TABLE 1
Emission Lines and
Estimated Pixel Count Rates
Ion log(T)Wavelength (Å)
FeIX 5.8 171.0
OV 5.4 172.2
OVI 5.5 172.9
FeX 6.0 174.5
177.2
FeXI 6.1 180.4
188.2
FeXXIV * 7.4 192.0
FeXII 6.2 192.4
193.5
195.1
FeXIII 6.2 202.0
203.8
* A weaker line, except very strong during flares.




TXI Team

Leon Golub (PI), SAO
George Nystrom (PE), SAO
Wolfgang Schmidt, MPAe
Edward DeLuca
Frank Licata
Frank Rivera
Paul Hamilton
Chess Stetson

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TXI Telescope After The Flight: R.I.P.
The TXI telescope after chute failed to open



The Salvage Operation
Data and Camera Retrieval


Web curator: Edward E. DeLuca

edeluca@cfa

Last revised 2000 June 29 - Chess Stetson

New journal: New Arcadia Review