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{{Short description|Fifth and final orbital flight of a boilerplate Apollo spacecraft, July 30, 1965}}
{{use mdy dates|date=September 2021}}
{{Infobox spaceflight
| name = AS-105
| image = Saturn SA10 launch.jpg
| image_caption = Launch of SA-10 carrying AS-105
| insignia =

| mission_type = Spacecraft aerodynamics;<br>[[micrometeoroid]] investigation
| operator = [[NASA]]
| COSPAR_ID = 1965-060B
| SATCAT = 1468
| orbits_completed = ~22,152
| distance_travelled = {{convert|912064090|km|mi|sp=us}}

| spacecraft = [[Apollo (spacecraft)|Apollo]] BP-9<br>[[Pegasus 3]]
| manufacturer =
| launch_mass = {{convert|3199|lb|kg|disp=flip}}
| landing_mass =

| launch_date = {{start date text|July 30, 1965, 13:00:00|timezone=yes}} UTC
| launch_rocket = [[Saturn I]] SA-10
| launch_site = [[Cape Canaveral Air Force Station|Cape Kennedy]] [[Cape Canaveral Air Force Station Space Launch Complex 37|LC-37B]]
| decay_date = {{end date text|November 22, 1975}}<ref name="satcat"/>

| orbit_epoch = 3 September 1965<ref name="satcat">{{cite web|url=http://planet4589.org/space/log/satcat.txt|title=Satellite Catalog|first=Jonathan|last=McDowell|work=Jonathan's Space Page|access-date=31 October 2013}}</ref>
| orbit_reference = [[geocentric orbit|Geocentric]]
| orbit_regime = [[Low Earth orbit]]
| orbit_periapsis = {{convert|521|km|mi|sp=us}}
| orbit_apoapsis = {{convert|536|km|mi|sp=us}}
| orbit_inclination = 28.8 degrees
| orbit_period = 95.2 minutes
| apsis = gee

| previous_mission = [[AS-104]]
| next_mission = [[AS-201]]
| programme = [[Apollo program]]
}}

'''AS-105''' was the fifth and final [[orbit]]al flight of a [[boilerplate (spacecraft)|boilerplate]] [[Apollo spacecraft]], and the third and final launch of a [[Pegasus (satellite)|Pegasus micrometeoroid detection satellite]]. It was launched by '''SA-10''', the tenth and final [[Saturn I]] rocket, in 1965.

== Overview ==
AS-105 was an [[Project Apollo|Apollo]] [[Boilerplate (spaceflight)|boilerplate]] spacecraft; boilerplate BP-9A was used for the flight. The spacecraft reentered on November 22, 1975.<ref>{{cite web | url=http://www.astronautix.com/lvs/saturni.htm | title=Saturn I | access-date=February 28, 2011 | publisher=Astronautix | url-status=dead | archive-url=https://web.archive.org/web/20101207080648/http://www.astronautix.com/lvs/saturni.htm | archive-date=December 7, 2010 }}</ref> The Saturn launch vehicle (SA-10) was similar to those of missions AS-103 and AS-104. As on the previous mission, the boilerplate [[Apollo service module|service module]] was equipped with a test installation of a reaction control engine package.

The primary flight objective was to continue demonstration of the launch vehicle's iterative guidance mode and evaluation of system accuracy.

== Launch ==
AS-105 was launched from [[Cape Canaveral Air Force Station|Cape Kennedy]] Launch Complex 37B at 08:00 [[Eastern Standard Time|EST]] (13:00 [[GMT]]) on July 30, 1965, on the last Saturn I rocket, SA-10. A planned thirty-minute hold ensured that launch time coincided with the opening of the [[Pegasus (satellite)|Pegasus]] launch window. The launch was normal and the payload was inserted into orbit approximately 10.7 minutes after lift-off. The total mass placed in orbit, including the spacecraft, Pegasus spacecraft, adapter, instrument unit, and [[S-IV]] stage, was 34,438 pounds (15,621 kg).

The spacecraft was separated 812 seconds after lift-off and the separation and ejection system operated as planned. The [[Pegasus 3]] spacecraft, which was attached to the S-IV stage of the Saturn I and stowed inside the boilerplate service module, was deployed 40 seconds after command initiation at 872 seconds. Pegasus 3 was a 1423.6 kilogram (3138.6 pound) micrometeoroid detection satellite, which was bolted to the S-IV.

== References ==
{{Include-NASA}}
{{reflist}}

== External links==
{{Portal|Spaceflight}}
*[https://nssdc.gsfc.nasa.gov/nmc/spacecraft/display.action?id=1965-060A NSSDC: SA-10]
*[https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19660023504_1966023504.pdf Range safety data for Saturn SA-10]
*[https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19650018730_1965018730.pdf SA-10 flight mechanical summary technical memorandum, Jul. 13, 1965]
*[https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19660005493_1966005493.pdf Vibration and acoustic analyzes, Saturn SA-10 flight]
*[https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19920075303_1992075303.pdf Saturn SA-10/Pegasus C postflight trajectory]

{{Commons category}}

{{Apollo program| before=[[AS-104]] <br> [[Pad Abort Test-2 (Apollo)|Pad Abort Test-2]]| after=[[AS-201]] <br> [[A-004]]}}
{{Orbital launches in 1965}}

{{Use American English|date=January 2014}}

[[Category:Apollo program]]
[[Category:Spacecraft launched in 1965]]
[[Category:1965 in the United States]]
[[Category:Test spaceflights]]
[[Category:Spacecraft launched by Saturn rockets]]
[[Category:Saturn I]]

AS-105 - Revision history

imported>Robby: link to Commons is now defined on Wikidata