THE BIG PICTURE
Sign in to track this film in your collection or want list.
Year Published: 1958
Format: 16mm
Description: This episode of the U.S. Army's TV program "The Big Picture" deals with the the first satellite of the United States Explorer 1, launched as part of its participation in the International Geophysical Year. The mission followed the first two satellites the previous year; the Soviet Union's Sputnik 1 and 2, beginning the Cold War Space Race between the two nations. Army General John Medaris headed the Army Ballistic Missile Agency, which oversaw both JPL and Wernher von Braun’s rocket team in Huntsville, Ala. JPL and the Army teamed up to launch Explorer 1. The Huntsville team provided the first-stage rocket, while JPL built the upper stages and the satellite that carried the science payload. Medaris played a pivotal role in advancing the development of Explorer 1. Explorer 1 was launched on January 31, 1958 at 22:48 Eastern Time (equal to February 1, 03:48 UTC) atop the first Juno booster from LC-26 at the Cape Canaveral Missile Annex, Florida. It was the first spacecraft to detect the Van Allen radiation belt, returning data until its batteries were exhausted after nearly four months. It remained in orbit until 1970, and has been followed by more than 90 scientific spacecraft in the Explorer series. Explorer 1 was given Satellite Catalog Number 4, and the Harvard designation 1958 Alpha 1, the forerunner to the modern International Designator. To the surprise of mission experts, Explorer 1 changed rotation axis after launch. The elongated body of the spacecraft had been designed to spin about its long (least-inertia) axis but refused to do so, and instead started precessing due to energy dissipation from flexible structural elements. Later it was understood that on general grounds, the body ends up in the spin state that minimizes the kinetic rotational energy for a fixed angular momentum (this being the maximal-inertia axis). This motivated the first further development of the Eulerian theory of rigid body dynamics after nearly 200 years—to address this kind of momentum-preserving energy dissipation. Sometimes the instrumentation would report the expected cosmic ray count (approximately 30 counts per second) but sometimes it would show a peculiar zero counts per second. The University of Iowa (under Van Allen) noted that all of the zero counts per second reports were from an altitude of 2,000+ km (1,250+ miles) over South America, while passes at 500 km (310 mi) would show the expected level of cosmic rays. Later, after Explorer 3, it was concluded that the original Geiger counter had been overwhelmed ("saturated") by strong radiation coming from a belt of charged particles trapped in space by the Earth's magnetic field. This belt of charged particles is now known as the Van Allen radiation belt. The discovery was considered to be one of the outstanding discoveries of the International Geophysical Year. The acoustic micrometeorite detector detected 145 impacts of cosmic dust in 78,750 seconds. This calculates to an average impact rate of 8.0×10−3 impacts m−2 s−1 over the twelve-day period (29 impacts per hour per square meter).
Complete Record:
Transcription
this is the big picture an official television report of the united states army produced for the armed forces and the american people now to show you part of the big picture here is master sergeant stuart queen at 10 48 p.m eastern standard time on january 31 1958 the attention of the american people was focused on cape canaveral florida as a giant rocket was catapulted toward outer space few events in american history have been so awake prayed for worked for as the army's successful launching of explorer one today's big picture will reveal the dramatic suspenseful story of how the army when the prestige of the united states throughout the world had been shaken by events beyond its control stirred the hearts and emotions of the american people with an epic display of scientific and technical teamwork our story starts 84 days before the launching of explorer one the date the morning of november 8 1957 at huntsville alabama a sudden meeting has been called by general john b medeiros commanding general of the army ballistic missile agency good morning gentlemen be seated please i have a very important announcement for you we've been assigned the mission of launching a scientific earth satellite and we will use the jupiter c configuration as a carrier that we developed along with the jet propulsion laboratory i promised the secretary of the army that we would be ready in 90 days or less let's go werner this is what they've been waiting for the deadline is 90 days 90 days to put a satellite into orbit a crash program an emergency and the american people had become aware of that emergency long before when a soviet sputnik beep beeped its way across the skies the reaction was one of astonishment and concern for it was now known that a potential enemy was at least temporarily ahead in developing means for space travel reaction counter reaction all at once americans were interested in the oncoming age of space and with the curiosity came a mounting swelling demand to get a satellite into the air on the double but there were disappointments it was an immensely difficult job and the first american attempt with a vanguard rocket was apparent and that was the background for the assignment to the army ballistic missile agency on november 8 1957 put a satellite into orbit within 90 days there was no sense of panic as the capability for doing the job had been a bma since 1954. abma was a crack team headed by old pros of the missile field dr werner von braun director of the development operations division supervised over 3 000 scientists engineers and technicians with more years of practical experience than any similar group elsewhere long before a countdown starts at a launching pad precise miniature replicas of the individual sections are made and subjected to numerous tests and even the model work comes after a countless number of hours at the drafting table each new experiment each test means more knowledge which may mean a change of design there are often no precedence it is creative work by creative men and women absorbed in the fascinating problems of space flight and it would be difficult to find a science which does not have something to contribute even as the research and design work along with the incessant testing goes on the missiles take shape in the vast construction shops in the development phase no two missiles are alike each one contains changes and improvements on what has come before all efforts are made to perfect the missiles quickly but every day presents an obstacle course of unique problem even the welding for example involves special techniques needed to satisfy the very specific requirements of a missile now added to the already numerous complications the abma development team had the job of modifying an existing missile system for the purpose of achieving orbital capacity the decision was passed down modify the redstone ballistic missile the army's most powerful weapons carrier over a 200 mile range why the redstone it improved itself again and again on the abma launching pads at cape canaveral florida at huntsville alabama the steady success of the redstone firings confirmed the feeling they were going to be the ones to put up a satellite work on modifications was accelerated around the clock the tests of components assemblies everything that goes into the missile question will a small piece of metal alloy withstand the hottest part of the rocket's exhaust no guesswork abma people have to know the rockets exhaust will be too much for the alloy it melts so they will develop a better one but the final test at apma the big one where the results of thousands of tests are checked out is the static firing held firmly in place its rocket engines filled with fuel the assembled missile is studied during full force firing in the blockhouse sheaved in concrete where the operating controls and personnel are located the countdown has started a few seconds before firing the water is turned on four thousand gallons a minute are required to cool the flame deflector of the test stand in this simulated flight where the missile will stay right where she is the countdown moves along to the fateful moment the static test is over the rocket is taken down and dried out a closer examination of the rocket by observer teams will determine how various parts withstood the static test firing the static firing was successful and the modified redstone which would serve as the first stage of the satellite bearing rocket was loaded aboard a plane next stop cape canaveral florida but meanwhile far across the country at the jet propulsion laboratory a sprawling 80-acre research and development complex in pasadena california scientists and engineers were racing toward the same deadline 90 days to put a satellite into orbit their job furnish the high-speed upper stages to take over after the first stage powered the satellite to the prescribed distance from the earth jpl also assembled the satellite and provided instrumentation to transmit the scientific data when completed the cylinder contained two transmitters their battery power supplies and instrumentation for transmitting data on cosmic rays meteorite erosion and temperature measurements the data would be dispatched continuously by the two transmitters assembled the satellite appears small but if all went well seven and a half minutes from the time the giant missile bearing it would leave the earth the cylinder would be hurtling independently through space at a little over eighteen thousand miles per hour if all went well the checkout on the jpl test stand went smoothly but only the launching pad at cape canaveral florida would tell the story the date wednesday 29 january 1958 eight days before the deadline set down by general madaris on the morning of the 29th the weather was not good the prediction was for thunderstorms and unsatisfactory jet stream conditions aloft a 24-hour postponement was decided upon the hours passed with the rocket crews working swiftly intensively but there is a whole set of operations to be completed at least 24 hours before the countdown stars it was not until friday january 31st that the weather cleared sufficiently for general medaris to order launch at 10 30 pm men worked on the lines pipes and servicing units on the pad others clamped about the various gantry levels as is so often said in the army but rarely with more accuracy this was it before the countdown was to start the satellite and last stage rocket shrouded to prevent even the slightest abrasion was at the launching pad dwarfed by the giant missile and the protective scaffold of the gantry the payload weighing 30.8 pounds 80 inches in length is raised toward the top where it will be carefully fitted into place like a glittering jewel in a luminous set at x minus two hours hyden an exotic liquid oxygen oxidizer for the fuel begins to flow into the tanks frosty white vapor hisses from the vents minutes click past relentlessly the beams of powerful searchlights light up the missile truly the star of one of the greatest suspense dramas of our time the drama approaches the final act the army's first attempt to fire a man-made moon into orbit time late evening friday january 31st 1958 in a block house at canaveral the countdown to explorer 1. okay we'll start now finish fuel loading take a weight reading okay check the utility room fuel vapors and notify the block house when we're clear to start generators on loading has been completed roger okay tie down the lead all right okay weight reading after last scaffold is removed afmtc telemeter calibration tape on start vibration and rpm recorders check all operating lights and meters for proper operation power panel check control panel checked roger measuring panel check this game roger cluster control panel check the control panel okay roger gyro rudder drive on power transfer test on observe and record all voltages fire transfer off we've either got a relay kicking out or the there's something uh dropping down on the dead vein instantaneously here hold the telometer indicates that jetbane 2 is deflected what do you want to do forget it okay resume count okay shall we go ahead 45 frequency 111 three two one five command five command fuel tank pressurized blocks missile power the missile is in flight but the success of its mission is still in doubt it will take another hour and a half to know whether the satellite is in orbit the most tense and harrowing weight of all minitrac stations operated throughout the world by the army air force and navy followed the movements of the army earth satellite at each of the stations a minute track radio system received signals from a transmitter in the satellite about midnight not far from the now empty launching pad general medaires finally called his assistant colonel leonard orman hello lynn you can send this off to the secretary that our satellite is definitely on orbit now get that off and then i'll give you the figures in a few minutes okay boy in washington at the national academy of science a packed auditorium of reporters radio and tv interviewers heard the announcement of dr richard porter chairman of the igy committee the national academy of sciences and the national science foundation announced that as part of the u.s international geophysical year program a scientific earth satellite was placed in orbit at five seconds after 10 55 pm by means of a jupiter c rocket vehicle launched by the army at cape canaveral florida a similar statement is being issued by the president i should like to add my personal congratulations to the army ballistics missiles agency and to dr von braun and dr pickering and their colleagues for a job well done before the news conference the big picture camera and sergeant stuart queen drew dr von braun aside for a special interview dr von braun i wonder if you could tell our big picture viewers just what did transpire during those 84 days well those were rather hectic 84 days i can assure you of that a project like firing a satellite into orbit is only possible if there's splendid teamwork all the way through in this particular case this teamwork involved at first close cooperation between our own army ballistic missile agency in huntsville alabama and the jet propulsion laboratory in pasadena california between the two of us the vehicle was developed that carried the satellite into orbit there was also very close cooperation between us and iowa state university which pioneered the payload jet propulsion laboratory also had a big hand in repackaging this payload for our vehicle because this payload was originally designed with a vanguard vehicle in mind as a potential carrier other groups that deserve much credit in our successful satellite try are the military and civilian personnel of patrick air force base down in florida from where the missile was fired the range operation down there and everybody from the command of the pooling ground down to the last camera man gave us splendid support the tracking of the missile as it circles around the globe is in the hands of both igy personnel and personnel of the naval research laboratory so you have an example here of splendid teamwork involving all three services and i hope this uh example will show that you need not believe everything you hear and read about inter-service rivalry and its detrimental effects there's actually a lot of fine teamwork between the services when it comes to getting things done 20 minutes later dr porter opened the question and answer session by introducing three of the key men in the success story of explorer one credit for the technical part of this achievement than any others in this country first dr werner von braun director for development operations of the army ballistic missiles agency dr von braun would you rise please uh dr uh james a van allen head of the physics department the state university of iowa who is chairman of the working group on internal instrumentation of the panel for the earth satellite program dr van allen and dr william h pickering director of the jet propulsion laboratory of the california institute of technology chairman of our working group on tracking and computation these three gentlemen have all had a direct and important part in this achievement now if you would like to address your questions uh i will try to repeat the question and uh we'll ask uh one of these gentlemen best qualified to answer it for you dr von braun how many stages in the device we have a total of four stages the first stage is an elongated redstone missile you currently show it an elongated redstone missile with extra long tanks and a special fuel combination which uh burns for approximately 140 seconds 145 seconds after cut off immediately after cut off we separate the front portion of this missile the so-called instrument compartment from the tank section this equip this uh instrument compartment is equipped with a spatial aptitude control system as we call it that aligns this portion including this spinning launcher in the nose into an exactly horizontal position once this nose section with the spinning cluster configuration and the nose goes through the apex of the trajectory the top stages are fired and there are three solid rocket stages in the top so it's the four stage vehicles how does this altitude compare with the sputnik this is so much greater than the uh altitude of either sputnik one or squidward two now the question is has any form of life been placed in the saga light i think i could answer that one almost myself not intentionally maybe we have a florida cockroach inside we don't know everybody welcomed the touches of humor for it was after all an hour of jubilation just one more came the inevitable plea from the photographers and exhausted as they were the trio obliged with what was to be the page one spread in newspapers all over the world in plain language the united states was in the space business along with the russians and explorer one was the beginning just under two months after explorer one was put into orbit and close on the heels of a successful firing of the navy's vanguard a launching pad at canaveral awaited another army satellite explorer 3. the army's first success had not washed away the rocket men's humility for there are a countless number of things that can go wrong in the operation and indeed explorer two fired successfully had failed to go into orbit because of one tiny component in the last stage maybe that was why along the florida beaches many fingers were crossed as eyes stared toward explorer three shortly before launch the upper stages are set rotating if the spin were not provided the payload would be hopelessly deflected two explorer 3 was reported in orbit again news flashed instantaneously throughout the world in every language to every country and wherever the news went it had an effect of transcendent importance the scientific and technical prestige of the united states was enhanced people everywhere knew the free world would not be left behind in the all-important race toward outer space now americans could once again look up toward their future with faith and with confidence and so two explorers were in orbit momentous achievements made possible by the close cooperation of the army with some of the best technical and scientific mines in the land as these satellites raced through the uncharted upper atmospheres there would come a steady stream of information to enrich our knowledge of the worlds of baltimore the infinity that lies far far beyond the wild blue yonder now this is sergeant stuart queen your host for the big picture the big picture is an official television report for the armed forces and the american people produced by the army pictorial center presented by the united states army in cooperation with this station
1 user has this film:
Periscope Film
No related films.
Original permalink · Record added: 2025-01-23 16:47:24