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#41
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Gravitational Scalar & Redshift Distortion
On 04/03/14 11:32, Richard D. Saam wrote:
Bill: Is there anyway the Voyagers can test this hypothesis? JPL continues to communicate with the Voyagers -- commands up, telemetry down -- but we have not requested any radio tracking data for either Voyager since October 1992. Our final trajectory update, issued in March 1993, was believed then to be accurate enough (less than 0.01 degree geocentric) to keep the spacecraft within the beamwidth of the DSN 70 meter antennas through at least 2019. The last two solutions for Voyager 2, done one year apart, differ by about 1 arcsec in 2020. (I still have the memo that documented the final solution, and I'm looking at it as I write this. Some things are worth keeping.) So from both an engineering and a budget standpoint there was no more reason to continue to collect tracking data. It's too late to test your hypothesis with Voyager 1. It's uncertain that Voyager 2 will reach the heliopause before its power runs out. -- Bill [Mod. note: quoted text trimmed -- mjh] |
#42
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Gravitational Scalar & Redshift Distortion
On 4/9/14, 9:24 AM, Bill Owen wrote:
JPL continues to communicate with the Voyagers -- commands up, telemetry down -- but we have not requested any radio tracking data for either Voyager since October 1992. Our final trajectory update, issued in March 1993, was believed then to be accurate enough (less than 0.01 degree geocentric) to keep the spacecraft within the beamwidth of the DSN 70 meter antennas through at least 2019. The last two solutions for Voyager 2, done one year apart, differ by about 1 arcsec in 2020. (I still have the memo that documented the final solution, and I'm looking at it as I write this. Some things are worth keeping.) So from both an engineering and a budget standpoint there was no more reason to continue to collect tracking data. Do this indicate that the Voyagers' trajectories based on 1993 calculation define reference telemetry frequencies with adequate resolution such that any difference to actual received telemetry frequencies may be correlated to the Pioneer acceleration effect or anomaly? Is this data archived in any manner for current or future analysis? Richard |
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