AS-102

Last updated

AS-102
Saturn SA7 launch.jpg
Launch of AS-102
Mission typeSpacecraft aerodynamics
Operator NASA
COSPAR ID 1964-057A OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 883
Mission duration~7 hours, 30 minutes
Orbits completed59
Spacecraft properties
Spacecraft Apollo BP-15
Launch mass16,700 kilograms (36,800 lb)
Start of mission
Launch dateSeptember 18, 1964, 16:22:43 (1964-09-18UTC16:22:43Z) UTC
Rocket Saturn I SA-7
Launch site Cape Kennedy LC-37B
End of mission
DisposalUncontrolled reentry
Last contactSeptember 18, 1964 (1964-09-19Z) UTC
Decay dateSeptember 22, 1964 (1964-09-23Z) UTC
Orbital parameters
Reference system Geocentric
Regime Low Earth orbit
Perigee altitude 177 kilometers (96 nmi)
Apogee altitude 206 kilometers (111 nmi)
Inclination 31.7 degrees
Period 88.32 minutes
Epoch September 20, 1964 [1]
  AS-101
AS-103  
 

AS-102 (also designated SA-7) was the seventh flight of the Saturn I launch vehicle, which carried the boilerplate Apollo spacecraft BP-15 into low Earth orbit. [2] The test took place on September 18, 1964, lasting for five orbits (about seven and a half hours). The spacecraft and its upper stage completed 59 orbits before reentering the atmosphere and crashing in the Indian Ocean on September 22, 1964.

Contents

Objectives

AS-102 was designed to repeat the flight of AS-101. It would once again carry a boilerplate Apollo command and service module. The only difference from Boilerplate 13 carried on AS-101 was that on Boilerplate 15, one of the simulated reaction control system thruster quads (attitude control thrusters) was instrumented to record launch temperatures and vibrations. [3] :103 Another major difference on AS-102 was that the launch escape system (LES) tower would be jettisoned using the launch escape and pitch control motors. [3] :3

AS-102 was the first time a Saturn rocket carried the ST-124 programmable guidance computer. Previous launches had used an onboard "black box" that was preprogrammed. [3] :2 On AS-102 it would be possible to reprogram the computer during flight so that any anomalous behavior could potentially be corrected.

Apollo Command Module boiler plate #15 checked out prior to SA-7 launch on September 18, 1964 Apollo sa-7.jpg
Apollo Command Module boiler plate #15 checked out prior to SA-7 launch on September 18, 1964

Flight

In early July, a small crack in engine number six was found. This meant removing the engine, the first time that the ground crew had to do this with a Saturn rocket. It was then decided to return all eight engines to the manufacturer, which meant a job that would take about ten hours because of the large number of tubes, hoses and wires that connected each engine to the rocket. The replacement delayed the launch by about two weeks, followed by another delay of several days because of Hurricanes Cleo and Dora. [3] :6

Launch was on 18 September from Cape Kennedy, Florida just before noon local time. The first stage burned for 147.7 seconds, with separation 0.8 seconds later. The second stage ignited 1.7 seconds later, and the LES jettisoned at 160.2 seconds after launch. It burned until +621.1 seconds with the stage and boilerplate in a 212.66 by 226.50 km orbit.

The flight met all its objectives. The spacecraft continued to transmit telemetry for five orbits and was tracked until re-entry on its 59th orbit over the Indian Ocean. [3] :103

The only anomalous event on the flight was the failure to recover the eight film-camera pods. They had landed downrange of the expected area, where Hurricane Gladys forestalled a continued search. However, two of the pods did wash ashore two months later. The pods were covered with barnacles, but the film inside was undamaged. [3] :3

Related Research Articles

<span class="mw-page-title-main">Apollo 5</span> Uncrewed first test flight of the Apollo Lunar Module

Apollo 5, also known as AS-204, was the uncrewed first flight of the Apollo Lunar Module (LM) that would later carry astronauts to the surface of the Moon. The Saturn IB rocket bearing the LM lifted off from Cape Kennedy on January 22, 1968. The mission was successful, though due to programming problems an alternate mission to that originally planned was executed.

<span class="mw-page-title-main">Apollo 6</span> Second test flight of the Apollo Saturn V rocket

Apollo 6, also known as AS-502, was the third and final uncrewed flight in the United States' Apollo Program and the second test of the Saturn V launch vehicle. It qualified the Saturn V for use on crewed missions, and it was used beginning with Apollo 8 in December 1968.

<span class="mw-page-title-main">S-IVB</span> Third stage on the Saturn V and second stage on the Saturn IB

The S-IVB was the third stage on the Saturn V and second stage on the Saturn IB launch vehicles. Built by the Douglas Aircraft Company, it had one J-2 rocket engine. For lunar missions it was fired twice: first for Earth orbit insertion after second stage cutoff, and then for translunar injection (TLI).

<span class="mw-page-title-main">AS-201</span> 1966 uncrewed, suborbital test flight within the Apollo program

AS-201, flown February 26, 1966, was the first uncrewed test flight of an entire production Block I Apollo command and service module and the Saturn IB launch vehicle. The spacecraft consisted of the second Block I command module and the first Block I service module. The suborbital flight was a partially successful demonstration of the service propulsion system and the reaction control systems of both modules, and successfully demonstrated the capability of the command module's heat shield to survive re-entry from low Earth orbit.

<span class="mw-page-title-main">AS-202</span> Uncrewed test flight of the Apollo Program

AS-202 was the second uncrewed, suborbital test flight of a production Block I Apollo command and service module launched with the Saturn IB launch vehicle. It was launched on August 25, 1966, and was the first flight which included the spacecraft guidance, navigation control system and fuel cells. The success of this flight enabled the Apollo program to judge the Block I spacecraft and Saturn IB ready to carry men into orbit on the next mission, AS-204.

<span class="mw-page-title-main">Saturn I SA-3</span> Third flight of the Saturn I

Saturn-Apollo 3 (SA-3) was the third flight of the Saturn I launch vehicle, the second flight of Project Highwater, and part of the American Apollo program. The rocket was launched on November 16, 1962, from Cape Canaveral, Florida.

<span class="mw-page-title-main">Saturn I SA-5</span> Apollo program test launch

Saturn-Apollo 5 (SA-5) was the first launch of the Block II Saturn I rocket and was part of the Apollo program. In 1963, President Kennedy identified this launch as the one which would place US lift capability ahead of the Soviets, after being behind for more than six years since Sputnik.

<span class="mw-page-title-main">AS-101</span> 1964 Apollo Program test flight

AS-101 was the sixth flight of the Saturn I launch vehicle, which carried the first boilerplate Apollo spacecraft into low Earth orbit. The test took place on May 28, 1964, lasting for four orbits. The spacecraft and its upper stage completed a total of 54 orbits before reentering the atmosphere and crashing in the Pacific Ocean on June 1, 1964.

<span class="mw-page-title-main">Apollo (spacecraft)</span> Saturn V-launched payload that took men to the Moon

The Apollo spacecraft was composed of three parts designed to accomplish the American Apollo program's goal of landing astronauts on the Moon by the end of the 1960s and returning them safely to Earth. The expendable (single-use) spacecraft consisted of a combined command and service module (CSM) and an Apollo Lunar Module (LM). Two additional components complemented the spacecraft stack for space vehicle assembly: a spacecraft–LM adapter (SLA) designed to shield the LM from the aerodynamic stress of launch and to connect the CSM to the Saturn launch vehicle and a launch escape system (LES) to carry the crew in the command module safely away from the launch vehicle in the event of a launch emergency.

<span class="mw-page-title-main">Saturn IB</span> American rocket used in the Apollo program during the 1960s and 70s

The Saturn IB(also known as the uprated Saturn I) was an American launch vehicle commissioned by the National Aeronautics and Space Administration (NASA) for the Apollo program. It uprated the Saturn I by replacing the S-IV second stage, with the S-IVB. The S-IB first stage also increased the S-I baseline's thrust from 1,500,000 pounds-force (6,700,000 N) to 1,600,000 pounds-force (7,100,000 N) and propellant load by 3.1%. This increased the Saturn I's low Earth orbit payload capability from 20,000 pounds (9,100 kg) to 46,000 pounds (21,000 kg), enough for early flight tests of a half-fueled Apollo command and service module (CSM) or a fully fueled Apollo Lunar Module (LM), before the larger Saturn V needed for lunar flight was ready.

<span class="mw-page-title-main">AS-104</span> 1965 orbital test of a Apollo spacecraft

AS-104 was the fourth orbital test of a boilerplate Apollo spacecraft, and the second flight of the Pegasus micrometeoroid detection satellite. It was launched by SA-8, the ninth Saturn I carrier rocket.

<span class="mw-page-title-main">AS-103</span> Third orbital flight test of a boilerplate Apollo spacecraft, February 16, 1965

AS-103 was the third orbital flight test of a boilerplate Apollo spacecraft, and the first flight of a Pegasus micrometeoroid detection satellite. Also known as SA-9, it was the third operational launch of a two-stage Saturn I launch vehicle.

<span class="mw-page-title-main">AS-105</span> Fifth and final orbital flight of a boilerplate Apollo spacecraft, July 30, 1965

AS-105 was the fifth and final orbital flight of a boilerplate Apollo spacecraft, and the third and final launch of a Pegasus micrometeoroid detection satellite. It was launched by SA-10, the tenth and final Saturn I rocket, in 1965.

Apollo abort modes were procedures by which the nominal launch of an Apollo spacecraft, either the Saturn IB or Saturn V rocket, could be terminated. The abort of the flight allowed for the rescue of the crew if the rocket failed catastrophically. Depending on how far the flight had progressed, different procedure or modes would be used. In the history of the Apollo Program, none of the abort modes were ever used on any of the fifteen crewed Apollo spacecraft flights.

<span class="mw-page-title-main">Launch escape system</span> A system to get the crew to safety if a rocket launch fails

A launch escape system (LES) or launch abort system (LAS) is a crew-safety system connected to a space capsule. It is used in the event of a critical emergency to quickly separate the capsule from its launch vehicle in case of an emergency requiring the abort of the launch, such as an impending explosion. The LES is typically controlled by a combination of automatic rocket failure detection, and a manual activation for the crew commander's use. The LES may be used while the launch vehicle is still on the launch pad, or during its ascent. Such systems are usually of three types:

<span class="mw-page-title-main">Pegasus (satellite)</span> Three American satellites launched in 1965

The Pegasus Project was a NASA initiative to study the frequency of micrometeoroid impacts on spacecraft by means of a constellation of three satellites launched in 1965. All three Pegasus satellites were launched by Saturn I rockets, and remained connected with their upper stages.

<span class="mw-page-title-main">Boilerplate (spaceflight)</span> Nonfunctional spacecraft or payload

A boilerplate spacecraft, also known as a mass simulator, is a nonfunctional craft or payload that is used to test various configurations and basic size, load, and handling characteristics of rocket launch vehicles. It is far less expensive to build multiple, full-scale, non-functional boilerplate spacecraft than it is to develop the full system. In this way, boilerplate spacecraft allow components and aspects of cutting-edge aerospace projects to be tested while detailed contracts for the final project are being negotiated. These tests may be used to develop procedures for mating a spacecraft to its launch vehicle, emergency access and egress, maintenance support activities, and various transportation processes.

<span class="mw-page-title-main">Saturn V dynamic test vehicle</span> Moon rocket test article in Huntsville, Alabama

The Saturn V dynamic test vehicle, designated SA-500D, is a prototype Saturn V rocket used by NASA to test the performance of the rocket when vibrated to simulate the shaking which subsequent rockets would experience during launch. It was the first full-scale Saturn V completed by the Marshall Space Flight Center (MSFC). Though SA-500D never flew, it was instrumental in the development of the Saturn V rocket which propelled the first men to the Moon as part of the Apollo program. Built under the direction of Dr. Wernher von Braun, it served as the test vehicle for all of the Saturn support facilities at MSFC.

<span class="mw-page-title-main">Saturn V</span> American super heavy-lift expendable rocket

The Saturn V is a retired American super heavy-lift launch vehicle developed by NASA under the Apollo program for human exploration of the Moon. The rocket was human-rated, had three stages, and was powered by liquid fuel. Flown from 1967 to 1973, it was used for nine crewed flights to the Moon, and to launch Skylab, the first American space station.

<span class="mw-page-title-main">Pegasus 2</span> American satellite

Pegasus 2 or Pegasus II, known before launch as Pegasus B was an American satellite which was launched in 1965 to study micrometeoroid impacts in Low Earth orbit. It was the second of three Pegasus satellites to be launched, following the launch of Pegasus 1 three months earlier. The Pegasus spacecraft were manufactured by Fairchild Hiller, and operated by NASA.

References

PD-icon.svg This article incorporates public domain material from websites or documents of the National Aeronautics and Space Administration .

  1. McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved October 31, 2013.
  2. NSSDC: SA-7
  3. 1 2 3 4 5 6 Results of The Seventh Saturn I Launch Vehicle Test Flight SA-7 (Report). NASA. December 30, 1964. Retrieved May 7, 2023.