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P10Accel:Light Speed Does Not Extrapolate.
Markwardt has said that you need many years of data to show what I
claim here with about 90 data points. I disagree for the reasons given in the initial post and clarified here. In short it is that the conventional light speed delay model uses earth motions that are often in the Anderson data to some degree opposite or at least not essentially the sam while the nearly instantaneous model uses earth motions on the uplink and downlink that are nearly the same. Thus if one shows that the anomalous acceleration disappears for the nearly instantaneous model for 90 data points then one could expect to do so for other randomly chosen set of available data points. He also denies saying earlier that radar sent from earth and reflected back from Venus had such large error bars that the results were effectively noise. As I recall he did say this or that the error bars were so great that differences in topography pixel by pixel over the image were not distinguishable. Thus the good pictures that came from radar reflections from spacecraft near Venus and sent back to Earth as data from these spacecraft were not inconsistent with the effective noise that was recorded earlier. Light speed delay is assumed to extrapolate to the most distant stars and galaxies but for distances beyond the GPSS satellites at 11,000 miles etc, the evidence is not as clearcut. (Roemer’s so called light speed measurement and Pulsar phenomena could be due to changes in perspective of the appearance and reappearance of Jupiter’s moons or binary stars at different times of year while Bradley’s measurement could be ascribed alternatively to nanosecond delay times in the response to light from a polar star as the Earth, passing under the star, moved in opposite directions at opposite times of the year. Etc..Radar reflections from Venus etc could just as well be noise and spacecraft navigation to Mars and Saturn etc can evidently be programmed ahead of time to take into account various contingencies etc.. see http://www.bestweb.net/~sansbury) The recently observed anomalous acceleration of Pioneer 10 provides the first clear evidence that light speed delay does not extrapolate beyond one minute. That is, the predicted Doppler shifted frequencies of a radar frequency sent to the spacecraft and returned to earth two light times later were used to adjust successive Newtonian calculated positions and velocities of Pioneer 10 as it moved away from the Earth. When the transmission and receptions earth site motions hours apart, used to compute the Doppler shifted return frequency, are replaced by earth site motions 1 minute apart, the anomalous acceleration disappears. No longer do the observed frequencies increase slightly but systematically with respect to the frequencies implied by the relative motions of the earth and the spacecraft. Thus it is no longer necessary to assume an anomalous acceleration of the craft to the sun to keep the predicted frequencies equal to the observed. (Thankfully, the planets can continue in their orbital paths without gradually being pulled into the sun.) The method is to choose a time when tracking radar reception is available and to compare the received frequency with that expected if the transmission which produced it was from the same earthsite within the previous minute and the craft was at the position and moving with the velocity given in the ephemeris. The ephemeris position and velocity data is based on previous conventional light speed delay assumptions used to the adjust the Newtonian calculation position and velocity given the effects of velocities imparted to the craft and those due to attraction by the sun and other other planets. The ephemeris position and velocity has not constantly been readjusted to match this tracking data perhaps since 1980 or earlier but it can be readjusted at any time using the conventional model or the nearly instantaneous light speed delay model. The procedure is similar in the two cases but is simpler when we assume the nearly instantaneous light speed delay model. First,referring to the NASA Horizons ephemeris, we project the Madrid earthsite velocity wrt sun,V=(u,v,w), a vector starting at Madrid at a specific time( eg t=21:24 Oct 7 1987) onto the line between Madrid and the craft position assuming the nearly instantantaneous light delay model, at this same time. The coordinates of the craft positions however are based on the above estimation procedure and earth site motions assuming the conventional light delay model. The velocity coordinates of the earth site wrt sun are u(t)=(x(t)-x(t-1))/60sec., etc. (in this example the earthsite velocity is V=30.028km/sec and the projected velocity on the line from the earth site to the ephemeris craft position at this same time is W= 25.43728km per second toward the craft.. The projected velocity of the craft onto this same line is 12.841164 (from 13.06)away from the earthsite. Thus the difference, 12.5801242 is the total uplink velocity and twice this is the total total uplink plus downlink velocity which is 25.16022929. The ratio of the projected earth site part of the total is 25/30=10/12 whereas the projected craft part of the total is 12/13 which is a smaller fraction. If we change the position of the craft by changing these angles of projection implied by a change in the angle of projection of the total total uplink plus downlink velocites and assume tentatively a slight change in the velocity of the craft, we can make the ephemeris position of the craft and its velocity give results that match more closely the received radar tracking data-at least for this minute. After repeating this procedure a few times we find no further changes are needed to sustain a close match minute by minute, and we can have confirmation of the trajectory determined in this way. 1) We take as the the angle of projection arcos(25.16023/30.02854)The angle of projection is arcos(0.837877)= 33.083 deg. 2) change the magnitude of the projected earthsite velocity at the Madrid earthsite by trial and error in the spreadsheet to 24.8392593 ( arccos(24.8392593/30.02854)= 34.1890 deg; or 1.106 degrees more than initially assumed) This means that if the craft position is at a slightly larger angle of projection,the motion of the earthsite to the craft would be reduced enough so that when the craft velocity away from the earth assumed to be the same as in the old position, is subtracted, the net velocity of the earth to the craft is smaller and enough smaller to make the predicted frequency match the observed frequency to within ..001Hz. We have ignored the effect of the implied craft position change on the craft velocity to Madrid but we can assume tentatively that the actual craft velocity wrt the sun is slightly greater so as to compensate for this effect. Of course we could also assume an even larger velocity of the craft away from the earth and a smaller increase in the angle of projection of the earthsite velocity onto the line between the earthsite and the new craft position. If this assumption produces a trajectory that requires even less adjustment than our first assumption we have arrived at an even more accurate trajectory. In this example the positions of the earth sites given by the ephemeris(NASA Horizons Telnet, observer table) are 55 seconds later than the times for the frequencies in the tracking data. Thus the change in position of the Madrid earthsite wrt the Sun from 21:23 to 21:24 divided by 60 seconds and associated with the spreadsheet time, 21:24, represents the average velocity during this minute in the CT time system but in the GMT time system this is the average velocity from 21:22 to 21:23 which produces the received frequency in the tracking data recorded at 21:23 etc. So we compare the spreadsheet predicted frequency for 21:24 with the observed received frequency for 21:23 (or a linear interpolation of the value for 21:23:05)etc. |
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P10Accel:Light Speed Does Not Extrapolate.
In message , Ralph
Sansbury writes Markwardt has said that you need many years of data to show what I claim here with about 90 data points. I disagree for the reasons given in the initial post and clarified here. In short it is that the conventional light speed delay model uses earth motions that are often in the Anderson data to some degree opposite or at least not essentially the sam while the nearly instantaneous model uses earth motions on the uplink and downlink that are nearly the same. Thus if one shows that the anomalous acceleration disappears for the nearly instantaneous model for 90 data points then one could expect to do so for other randomly chosen set of available data points. He also denies saying earlier that radar sent from earth and reflected back from Venus had such large error bars that the results were effectively noise. As I recall he did say this or that the error bars were so great that differences in topography pixel by pixel over the image were not distinguishable. Thus the good pictures that came from radar reflections from spacecraft near Venus and sent back to Earth as data from these spacecraft were not inconsistent with the effective noise that was recorded earlier. There are four hits on Google Groups for Markwardt and "error bar" and none of them are about Venus. Try again. I don't have access to Rumsey and Goldstein's original papers, but I'd guess that the noise at the pixel level was considerable. So you add lots of signals to remove it. I'm snipping the rest; it's almost word for word what you wrote before, and unlike radar signals, repeating doesn't make it any more accurate. |
#3
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P10Accel:Light Speed Does Not Extrapolate.
In message , Ralph
Sansbury writes Markwardt has said that you need many years of data to show what I claim here with about 90 data points. I disagree for the reasons given in the initial post and clarified here. In short it is that the conventional light speed delay model uses earth motions that are often in the Anderson data to some degree opposite or at least not essentially the sam while the nearly instantaneous model uses earth motions on the uplink and downlink that are nearly the same. Thus if one shows that the anomalous acceleration disappears for the nearly instantaneous model for 90 data points then one could expect to do so for other randomly chosen set of available data points. He also denies saying earlier that radar sent from earth and reflected back from Venus had such large error bars that the results were effectively noise. As I recall he did say this or that the error bars were so great that differences in topography pixel by pixel over the image were not distinguishable. Thus the good pictures that came from radar reflections from spacecraft near Venus and sent back to Earth as data from these spacecraft were not inconsistent with the effective noise that was recorded earlier. There are four hits on Google Groups for Markwardt and "error bar" and none of them are about Venus. Try again. I don't have access to Rumsey and Goldstein's original papers, but I'd guess that the noise at the pixel level was considerable. So you add lots of signals to remove it. I'm snipping the rest; it's almost word for word what you wrote before, and unlike radar signals, repeating doesn't make it any more accurate. |
#4
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P10Accel:Light Speed Does Not Extrapolate.
Jonathan Silverlight wrote in message ...
In message , Ralph Sansbury writes Markwardt has said that you need many years of data to show what I claim here with about 90 data points. I disagree for the reasons given in the initial post and clarified here. In short it is that the conventional light speed delay model uses earth motions that are often in the Anderson data to some degree opposite or at least not essentially the sam while the nearly instantaneous model uses earth motions on the uplink and downlink that are nearly the same. Thus if one shows that the anomalous acceleration disappears for the nearly instantaneous model for 90 data points then one could expect to do so for other randomly chosen set of available data points. He also denies saying earlier that radar sent from earth and reflected back from Venus had such large error bars that the results were effectively noise. As I recall he did say this or that the error bars were so great that differences in topography pixel by pixel over the image were not distinguishable. Thus the good pictures that came from radar reflections from spacecraft near Venus and sent back to Earth as data from these spacecraft were not inconsistent with the effective noise that was recorded earlier. There are four hits on Google Groups for Markwardt and "error bar" and none of them are about Venus. Try again. I don't have access to Rumsey and Goldstein's original papers, but I'd guess that the noise at the pixel level was considerable. So you add lots of signals to remove it. I think the Venus signals cannot be distinguished from noise and that the variations in the average associated with each pixel of surface could not be distinguished from the average which may itself have been noise. ie there is no evidence that it is not noise and the statistical method itself is non standard. I have tried to clarify this in my paper and other things like the ..209 degree angle of projection of the earthsite velocity on the craft-earthsite line that would give an accurate(withing ..001Hz)predicted frequency assuming the nearly instantaneous model. Of course an even smaller angle would be needed using the conventional model because the previous positions were based on the conventional model assumption. Light speed delay is assumed to extrapolate to the most distant stars and galaxies but for distances beyond the GPSS satellites at 11,000 miles etc, the evidence is not as clearcut. (Roemer’s so called light speed measurement and Pulsar phenomena could be due to changes in perspective of the appearance and reappearance of Jupiter’s moons or binary stars at different times of year while Bradley’s measurement could be ascribed alternatively to nanosecond delay times in the response to light from a polar star as the Earth, passing under the star, moved in opposite directions at opposite times of the year. Etc.. Weak reflections from Venus of radar transmitted from Earth show variations in surface height but with such large error bars that these variations AND the mean values could just as well be noise. Spacecraft navigation to Mars and Saturn etc can evidently be programmed ahead of time to take into account various contingencies without depending on the time delay assumptions used in sending and receiving data to the spacecraft. see http://www.bestweb.net/~sansbury) The recently observed anomalous acceleration of Pioneer 10 provides the first clear evidence that light speed delay does not extrapolate beyond one minute. That is, the predicted Doppler shifted frequencies of a radar frequency sent to the spacecraft and returned to earth two light times later were used to adjust successive Newtonian calculated positions and velocities of Pioneer 10 as it moved away from the Earth. When the transmission and receptions earth site motions hours apart, used to compute the Doppler shifted return frequency, are replaced by earth site motions 1 minute apart, the anomalous acceleration disappears. No longer do the observed frequencies increase slightly but systematically with respect to the frequencies implied by the relative motions of the earth and the spacecraft. Thus it is no longer necessary to assume an anomalous acceleration of the craft to the sun to keep the predicted frequencies equal to the observed. (Thankfully, the planets can continue in their orbital paths without gradually being pulled into the sun.) The method is to choose a time when tracking radar reception is available and to compare the received frequency with that expected if the transmission which produced it was from the same earthsite within the previous minute and the craft was at the position and moving with the velocity given in the ephemeris. The ephemeris position and velocity data is based on previous conventional light speed delay assumptions used to the adjust the Newtonian calculation position and velocity given the effects of velocities imparted to the craft and those due to attraction by the sun and other other planets. The ephemeris position and velocity have not been readjusted constantly to match this tracking data perhaps since 1980 or earlier but it can be readjusted at any time using the conventional model or the nearly instantaneous light speed delay model. The procedure is similar in the two cases but is simpler when we assume the nearly instantaneous light speed delay model. Also the nearly instantaneous model leads to a greater adjustment because the previous positions of the craft are based on the conventional model and so more closely match subsequent observed frequencies. First,referring to the NASA Horizons ephemeris, we project the Madrid earthsite velocity wrt sun,V=(u,v,w), a vector starting at Madrid at a specific time( eg t=21:24 Oct 7 1987) onto the line between Madrid and the craft position assuming the nearly instantantaneous light delay model, at this same time. The coordinates of the craft positions however are based on the above estimation procedure and earth site motions assuming the conventional light delay model. The velocity coordinates of the earth site wrt sun are u(t)=(x(t)-x(t-1))/60sec., etc. (at this time 21:24, the earthsite velocity is V=30.028539km/sec and the projected velocity on the line from the earth site to the ephemeris craft position at this same time is W= 25.421291km per second toward the craft. The projected velocity of the craft onto this same line is 12.841164 (from 13.06) away from the earthsite. Thus the difference, 12.5801257 is the total uplink velocity and twice this is the combined total uplink plus downlink velocity which is 25.16022929. arcos(25.16023/30.02854)The angle of projection is arcos(0.837877)= 33.083 deg. The ratio of the projected earth site part of the total is about 25/30=10/12 whereas the projected craft part of the total is 12/13 which is a smaller fraction. We can by trial and error change the position of the craft by changing the angle of projection so that the projected earthsite velocity is reduced from 25.421304 to 25.100317, so the angle is arccos(25.100317/30.02854)= 33.292 deg. This is .209 degrees more. We assume the projected craft velocity remains the same which implies a slight increase in its unprojected velocity since its projection angle must also change. By doing this we reduce the discrepancy between predicted and observed frequency to .001Hz. Then, assuming this new craft position and the previous velocity of the craft modified by the acceleration of the craft toward the sun during the next minute, and assuming the correct earthsite velocity at the next minute, the predicted frequency should also be within .001Hz of the observed,etc.. The test of the validity of our assumptions is that no further changes are needed to sustain a close match minute by minute, and we can have confirmation of the trajectory determined in this way. In this example the positions of the earth sites given by the ephemeris(NASA Horizons Telnet, observer table) are 55 seconds later than the times for the frequencies in the tracking data. Thus the change in position of the Madrid earthsite wrt the Sun from 21:23 to 21:24 divided by 60 seconds and associated with the spreadsheet time, 21:24, represents the average velocity during this minute in the CT time system but in the GMT time system this is the average velocity from 21:22 to 21:23 which produces the received frequency in the tracking data recorded at 21:23 etc. So we compare the spreadsheet predicted frequency for 21:24 with the observed received frequency for 21:23 (or a linear interpolation of the value for 21:23:05)etc. |
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