Physical sciences: Perturbations of Pioneer 6 telemetry signal during solar occultation

Details Physical sciences: Perturbations of Pioneer 6 telemetry signal during solar occultation Physical sciences: Perturbations of Pioneer 6 telemetry signal during solar occultation

May 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974natur.249...21c&link_type=abstract

Nature, Volume 249, Issue 5452, pp. 21-22 (1974).

Physics

5

Scientific paper

ATTENTION has been drawn recently to unexplained perturbations in the telemetry signal of Pioneer 6 (2,300 MHz) during solar occultation. The results1 shown in Fig. 1 present the following odd features: (1) An anomalous redshift is added to a normal linear redshift due to the spacecraft oscillator. This residual redshift which is symmetrical with respect to the centre of the Sun is of the order of z = 5.18-8 at four solar radii. (2) The bandwidth increases sharply when the telemetry signal grazes the Sun. (3) There are some extremely sharp pulses in the bandwidth. In Fig. 2 we show that these pulses are clearly associated with a sharp increase of the redshift and correspond to solar flares.

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