Abstract

The ASSI experiment aboard the San Marco D/L aeronomy satellite will monitor the airglow, solar, and interplanetary radiations from the EUV through the visible spectral regions. Four spectrometers with solar pointing control cover this broad region using channels with eighteen overlapping wavelength ranges with spectral resolutions from 0.8 to 3.0 nm are adequate for aeronomy. Large dynamic ranges up to 1:1011 permit the measurement of faint airglow or interplanetary radiation and intense solar emissions with one and the same instrument. Instrumental details such as the special optical design and calibration procedures are presented in detail.

© 1985 Optical Society of America

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References

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  1. H. E. Hinteregger, “Representation of Solar EUV-Fluxes for Aeronomic Application,” Adv. Space Res. 1, 39 (1981).
    [CrossRef]
  2. G. Schmidtke, “EUV-Indices for Solar-Terrestrial Relations,” Geophys. Res. Lett. 3, 573 (1976).
    [CrossRef]
  3. J. W. Cook, G. E. Brueckner, M. E. van Hoosier, “Variability of the Solar Flux in the Far Ultraviolet 1175–2100 Å,” J. Geophys. Res. 85, 2257 (1980).
    [CrossRef]
  4. G. Schmidtke, “Modelling of the Solar Extreme Ultraviolet Irradiation for Aeronomic Applications,” Handb. Phys. 4917, 1 (1984).
  5. P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
    [CrossRef]
  6. G. Schmidtke, W. Schweizer, M. Knothe, “The AEROS-EUV-Spectrometer,” J. Geophys. 50, 577 (1974).
  7. G. Schmidtke, M. Knothe, F. Heidinger, “Magnetic Electron Multipliers: Efficiency Changes, Appl. Opt. 14, 1645 (1975).
    [CrossRef] [PubMed]
  8. G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).
  9. P. B. Seidl, G. Stasek, C. Wita, G. Schmidtke, “Rocket-borne Measurements in the EUV-Visible Spectral Range During Auroral Events,” at Sixth ESA Symposium on European Rocket and Balloon Programmes (ESA SP-183) (1983), pp. 77–81.

1984

G. Schmidtke, “Modelling of the Solar Extreme Ultraviolet Irradiation for Aeronomic Applications,” Handb. Phys. 4917, 1 (1984).

1983

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

1981

H. E. Hinteregger, “Representation of Solar EUV-Fluxes for Aeronomic Application,” Adv. Space Res. 1, 39 (1981).
[CrossRef]

1980

J. W. Cook, G. E. Brueckner, M. E. van Hoosier, “Variability of the Solar Flux in the Far Ultraviolet 1175–2100 Å,” J. Geophys. Res. 85, 2257 (1980).
[CrossRef]

1976

G. Schmidtke, “EUV-Indices for Solar-Terrestrial Relations,” Geophys. Res. Lett. 3, 573 (1976).
[CrossRef]

1975

1974

G. Schmidtke, W. Schweizer, M. Knothe, “The AEROS-EUV-Spectrometer,” J. Geophys. 50, 577 (1974).

1973

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Baker, K. D.

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

Brueckner, G. E.

J. W. Cook, G. E. Brueckner, M. E. van Hoosier, “Variability of the Solar Flux in the Far Ultraviolet 1175–2100 Å,” J. Geophys. Res. 85, 2257 (1980).
[CrossRef]

Carignan, G.

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Cook, J. W.

J. W. Cook, G. E. Brueckner, M. E. van Hoosier, “Variability of the Solar Flux in the Far Ultraviolet 1175–2100 Å,” J. Geophys. Res. 85, 2257 (1980).
[CrossRef]

Hays, P. B.

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Heidinger, F.

Hinteregger, H. E.

H. E. Hinteregger, “Representation of Solar EUV-Fluxes for Aeronomic Application,” Adv. Space Res. 1, 39 (1981).
[CrossRef]

Kennedy, B. C.

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Knothe, M.

G. Schmidtke, M. Knothe, F. Heidinger, “Magnetic Electron Multipliers: Efficiency Changes, Appl. Opt. 14, 1645 (1975).
[CrossRef] [PubMed]

G. Schmidtke, W. Schweizer, M. Knothe, “The AEROS-EUV-Spectrometer,” J. Geophys. 50, 577 (1974).

Schmidtke, G.

G. Schmidtke, “Modelling of the Solar Extreme Ultraviolet Irradiation for Aeronomic Applications,” Handb. Phys. 4917, 1 (1984).

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

G. Schmidtke, “EUV-Indices for Solar-Terrestrial Relations,” Geophys. Res. Lett. 3, 573 (1976).
[CrossRef]

G. Schmidtke, M. Knothe, F. Heidinger, “Magnetic Electron Multipliers: Efficiency Changes, Appl. Opt. 14, 1645 (1975).
[CrossRef] [PubMed]

G. Schmidtke, W. Schweizer, M. Knothe, “The AEROS-EUV-Spectrometer,” J. Geophys. 50, 577 (1974).

P. B. Seidl, G. Stasek, C. Wita, G. Schmidtke, “Rocket-borne Measurements in the EUV-Visible Spectral Range During Auroral Events,” at Sixth ESA Symposium on European Rocket and Balloon Programmes (ESA SP-183) (1983), pp. 77–81.

Schweizer, W.

G. Schmidtke, W. Schweizer, M. Knothe, “The AEROS-EUV-Spectrometer,” J. Geophys. 50, 577 (1974).

Seidl, P.

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

Seidl, P. B.

P. B. Seidl, G. Stasek, C. Wita, G. Schmidtke, “Rocket-borne Measurements in the EUV-Visible Spectral Range During Auroral Events,” at Sixth ESA Symposium on European Rocket and Balloon Programmes (ESA SP-183) (1983), pp. 77–81.

Shepherd, G. G.

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Stasek, G.

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

P. B. Seidl, G. Stasek, C. Wita, G. Schmidtke, “Rocket-borne Measurements in the EUV-Visible Spectral Range During Auroral Events,” at Sixth ESA Symposium on European Rocket and Balloon Programmes (ESA SP-183) (1983), pp. 77–81.

van Hoosier, M. E.

J. W. Cook, G. E. Brueckner, M. E. van Hoosier, “Variability of the Solar Flux in the Far Ultraviolet 1175–2100 Å,” J. Geophys. Res. 85, 2257 (1980).
[CrossRef]

Walker, J. C. G.

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Wita, C.

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

P. B. Seidl, G. Stasek, C. Wita, G. Schmidtke, “Rocket-borne Measurements in the EUV-Visible Spectral Range During Auroral Events,” at Sixth ESA Symposium on European Rocket and Balloon Programmes (ESA SP-183) (1983), pp. 77–81.

Adv. Space Res.

H. E. Hinteregger, “Representation of Solar EUV-Fluxes for Aeronomic Application,” Adv. Space Res. 1, 39 (1981).
[CrossRef]

G. Schmidtke, K. D. Baker, G. Stasek, C. Wita, P. Seidl, “Rocket-borne EUV-Visible Emission Measurements,” Adv. Space Res. 2, 10, 103 (1983).

Appl. Opt.

Geophys. Res. Lett.

G. Schmidtke, “EUV-Indices for Solar-Terrestrial Relations,” Geophys. Res. Lett. 3, 573 (1976).
[CrossRef]

Handb. Phys.

G. Schmidtke, “Modelling of the Solar Extreme Ultraviolet Irradiation for Aeronomic Applications,” Handb. Phys. 4917, 1 (1984).

J. Geophys.

G. Schmidtke, W. Schweizer, M. Knothe, “The AEROS-EUV-Spectrometer,” J. Geophys. 50, 577 (1974).

J. Geophys. Res.

J. W. Cook, G. E. Brueckner, M. E. van Hoosier, “Variability of the Solar Flux in the Far Ultraviolet 1175–2100 Å,” J. Geophys. Res. 85, 2257 (1980).
[CrossRef]

Radio Sci.

P. B. Hays, G. Carignan, B. C. Kennedy, G. G. Shepherd, J. C. G. Walker, “The Visible Airglow Experiment on Atmosphere Explorer,” Radio Sci. 8, 369 (1973).
[CrossRef]

Other

P. B. Seidl, G. Stasek, C. Wita, G. Schmidtke, “Rocket-borne Measurements in the EUV-Visible Spectral Range During Auroral Events,” at Sixth ESA Symposium on European Rocket and Balloon Programmes (ESA SP-183) (1983), pp. 77–81.

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Figures (8)

Fig. 1
Fig. 1

Top and side view scheme of the San Marco satellite showing the position of ASSI A and ASSI B.

Fig. 2
Fig. 2

Views of one ASSI experiment with the light entrances 1 at the two spectrometer planes, the sun sensor 2, the ±30° sun pointing mechanism 3, and the mechanical frame structure 4.

Fig. 3
Fig. 3

(a) Optical systems of ASSI; (b) spectrometer layout.

Fig. 4
Fig. 4

Spectral ranges of the four spectrometers ASSI A, I and III with channels 1–4 and 9–12, ASSI B, II and IV with channels 5–8 and 13–17.

Fig. 5
Fig. 5

Nitrogen spectrum from a gas discharge source recorded with ASSI A, channel 4, with two emission lines separated as used for calibration.

Fig. 6
Fig. 6

Instrumental efficiencies for channels 5 and 11.

Fig. 7
Fig. 7

Degree of polarization P in channel 9.

Fig. 8
Fig. 8

Squint reduction at fixed voltages for channels 1 and 5 in the 490–650-nm spectral range.

Tables (1)

Tables Icon

Table I Characteristics of the Four Spectrometers

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