Abstract

Pioneer 10 has successfully encountered Jupiter and several of its satellites. The two-channel infrared radiometer used to obtain data relating to thermal properties of the planet and its atmosphere is described. The instrument features a body-fixed, 7.62-cm diam aperture Cassegrainian telescope with reststrahlen filters defining the 14-μm to 25-μm and 30-μm to 56-μm bands. Detectors are 88-junction evaporated thin-film thermopiles. Stringent weight constraints of 2 kg dictated all-beryllium construction. Power consumption was 1.2 W.

© 1974 Optical Society of America

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References

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  1. S. C. Chase et al., Science 183 (1974).
    [PubMed]
  2. K. R. Armstrong et al., Astrophysi. J. 178, L89 1 (1972).
  3. G. Münch, “Probing the Structure and Composition of the Jupiter Atmosphere from Pioneer 10/11,” AIAA/AGU Space Science Conference, Denver, Colo., Paper No. 73-561, 10–12 July 1973.
  4. W. Kaiser et al., Phys. Rev. 127 (1962).
    [CrossRef]
  5. G. Andermann, E. Duesler, J. Opt. Soc. Am. 60 (1970).
    [CrossRef]
  6. O. Stafsudd, N. B. Stevens, Appl. Opt. 7, 2320 (1968).
    [CrossRef] [PubMed]
  7. N. B. Stevens, in Semiconductors and Semimetals, Vol. 5, Infrared Detectors, R. K. Willardson, A. C. Beer, Eds. (Academic Press, New York, 1970), Chap. 7.
    [CrossRef]

1974

S. C. Chase et al., Science 183 (1974).
[PubMed]

1972

K. R. Armstrong et al., Astrophysi. J. 178, L89 1 (1972).

1970

G. Andermann, E. Duesler, J. Opt. Soc. Am. 60 (1970).
[CrossRef]

1968

1962

W. Kaiser et al., Phys. Rev. 127 (1962).
[CrossRef]

Andermann, G.

G. Andermann, E. Duesler, J. Opt. Soc. Am. 60 (1970).
[CrossRef]

Armstrong, K. R.

K. R. Armstrong et al., Astrophysi. J. 178, L89 1 (1972).

Chase, S. C.

S. C. Chase et al., Science 183 (1974).
[PubMed]

Duesler, E.

G. Andermann, E. Duesler, J. Opt. Soc. Am. 60 (1970).
[CrossRef]

Kaiser, W.

W. Kaiser et al., Phys. Rev. 127 (1962).
[CrossRef]

Münch, G.

G. Münch, “Probing the Structure and Composition of the Jupiter Atmosphere from Pioneer 10/11,” AIAA/AGU Space Science Conference, Denver, Colo., Paper No. 73-561, 10–12 July 1973.

Stafsudd, O.

Stevens, N. B.

O. Stafsudd, N. B. Stevens, Appl. Opt. 7, 2320 (1968).
[CrossRef] [PubMed]

N. B. Stevens, in Semiconductors and Semimetals, Vol. 5, Infrared Detectors, R. K. Willardson, A. C. Beer, Eds. (Academic Press, New York, 1970), Chap. 7.
[CrossRef]

Appl. Opt.

Astrophysi. J.

K. R. Armstrong et al., Astrophysi. J. 178, L89 1 (1972).

J. Opt. Soc. Am.

G. Andermann, E. Duesler, J. Opt. Soc. Am. 60 (1970).
[CrossRef]

Phys. Rev.

W. Kaiser et al., Phys. Rev. 127 (1962).
[CrossRef]

Science

S. C. Chase et al., Science 183 (1974).
[PubMed]

Other

G. Münch, “Probing the Structure and Composition of the Jupiter Atmosphere from Pioneer 10/11,” AIAA/AGU Space Science Conference, Denver, Colo., Paper No. 73-561, 10–12 July 1973.

N. B. Stevens, in Semiconductors and Semimetals, Vol. 5, Infrared Detectors, R. K. Willardson, A. C. Beer, Eds. (Academic Press, New York, 1970), Chap. 7.
[CrossRef]

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Figures (8)

Fig. 1
Fig. 1

Geometry between Jupiter and Pioneer 10’s trajectory with Io, earth, and sun occultation.

Fig. 2
Fig. 2

Photograph of Pioneer 10/11 infrared radiometer.

Fig. 3
Fig. 3

Jupiter Pioneer radiometer roll timing diagram.

Fig. 4
Fig. 4

Infrared Radiometer block diagram—analog circuits.

Fig. 5
Fig. 5

Optical schematic diagram.

Fig. 6
Fig. 6

Spectral response.

Fig. 7
Fig. 7

Photomicrograph of 88-junction thin film thermopile detector.

Fig. 8
Fig. 8

System SNR as a function of planet brightness temperature.

Equations (1)

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14 25 μ m : ~ 500 30 56 μ m : ~ 3500 } Ratios of out-of-band to in-band response corrected for radiance levels at Jupiter .

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