World Library  
Flag as Inappropriate
Email this Article

AS-104 (spacecraft)

Article Id: WHEBN0000776998
Reproduction Date:

Title: AS-104 (spacecraft)  
Author: World Heritage Encyclopedia
Language: English
Subject: Apollo program, AS-103 (spacecraft), List of Apollo missions, WikiProject Space missions/Space Missions, Saturn I SA-4
Collection: 1965 in the United States, Apollo Program, Spacecraft Launched in 1965
Publisher: World Heritage Encyclopedia
Publication
Date:
 

AS-104 (spacecraft)

AS-104
Launch of Saturn AS-104
Mission type Spacecraft aerodynamics;
micrometeroid investigation
Operator NASA
COSPAR ID 1965-039B
SATCAT № 1385
Mission duration 5,275 days
Distance travelled 3,282,050,195 kilometers (2.039371443×109 mi)
Orbits completed ~79,790
Spacecraft properties
Spacecraft Apollo BP-26
Pegasus 2
Launch mass 1,451.5 kilograms (3,200 lb)
Start of mission
Launch date May 25, 1965, 07:35:01 (1965-05-25T07:35:01Z) UTC
Rocket Saturn I SA-8
Launch site Cape Canaveral LC-37B
End of mission
Decay date Did not recognize date. Try slightly modifying the date in the first parameter.
Orbital parameters
Reference system Geocentric
Regime Low Earth orbit
Perigee 511 kilometers (318 mi)
Apogee 739 kilometers (459 mi)
Inclination 31.7 degrees
Period 97.2 minutes
Epoch 4 July 1965[1]

Apollo program
← AS-103 AS-105

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

Contents

  • Objectives 1
  • Launch 2
  • References 3
  • External links 4

Objectives

The primary mission objective was to demonstrate the launch vehicle iterative guidance mode and evaluation of system accuracy. The launch trajectory was similar to that of mission AS-103.

The Saturn launch vehicle (SA-8) and payload were similar to those of mission AS-103 except that a single reaction control engine assembly was mounted on the boilerplate service module (BP-26) and the assembly was instrumented to acquire additional data on launch environment temperatures. This assembly also differed from the one on the AS-101 mission in that two of the four engines were of a prototype configuration instead of all engines being simulated.

Launch

This was the first nighttime launch in the Saturn I series. A built-in 35 minute hold was used to ensure that launch time coincided with the opening of the launch window.

AS-104 was launched from Cape Kennedy Launch Complex 37B at 02:35:01 a.m. EST (07:35:01 GMT) on May 25. 1965, The launch was normal and the payload was inserted into orbit approximately 10.6 minutes after lift-off. The total mass placed in orbit, including the spacecraft, Pegasus B, adapter, instrument unit, and S-IV stage, was 34,113 pounds (15,473 kg). The perigee and apogee were 314.0 and 464.1 miles (505 and 747 km), respectively; the orbital inclination was 31.78'. The 1397 kilogram (3080-pound) Pegasus 2 satellite was also carried to orbit by SA-8, being stowed inside the boilerplate's service module, and remaining attached to the S-IV stage.

The actual trajectory was close to the one predicted, and the spacecraft was separated 806 seconds after lift-off. Several minor malfunctions occurred in the S-I stage propulsion system; however, all mission objectives were achieved.

References

  1. ^ McDowell, Jonathan. "Satellite Catalog". Jonathan's Space Page. Retrieved 31 October 2013. 

External links

  • NSSDC: SA-8
  • SA-8 Operational Trajectory
  • Manned space flight network performance analysis for the SA-8 mission
  • SA-8 flight test data report

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

This article was sourced from Creative Commons Attribution-ShareAlike License; additional terms may apply. World Heritage Encyclopedia content is assembled from numerous content providers, Open Access Publishing, and in compliance with The Fair Access to Science and Technology Research Act (FASTR), Wikimedia Foundation, Inc., Public Library of Science, The Encyclopedia of Life, Open Book Publishers (OBP), PubMed, U.S. National Library of Medicine, National Center for Biotechnology Information, U.S. National Library of Medicine, National Institutes of Health (NIH), U.S. Department of Health & Human Services, and USA.gov, which sources content from all federal, state, local, tribal, and territorial government publication portals (.gov, .mil, .edu). Funding for USA.gov and content contributors is made possible from the U.S. Congress, E-Government Act of 2002.
 
Crowd sourced content that is contributed to World Heritage Encyclopedia is peer reviewed and edited by our editorial staff to ensure quality scholarly research articles.
 
By using this site, you agree to the Terms of Use and Privacy Policy. World Heritage Encyclopedia™ is a registered trademark of the World Public Library Association, a non-profit organization.
 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.