Technology for Autonomous Operational Survivability

{{For|other uses of 'Taos'|Taos (disambiguation){{!}}Taos}}

{{Infobox spaceflight

| name = Technology for Autonomous Operational Survivability (TAOS)

| names_list = Space Test Experiment Platform 0 (STEP-0)
USA 101

| image = 200px

| image_caption =

| image_alt =

| image_size =

| mission_type = Technology demonstrator

| operator = AFRL

| Harvard_designation =

| COSPAR_ID = 1994-017A

| SATCAT = 23030

| website =

| mission_duration =

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| spacecraft_bus = LEOStar

| manufacturer = Orbital Sciences

| launch_mass = {{convert|502|kg|abbr=on}}

| BOL_mass =

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| dry_mass =

| payload_mass =

| dimensions =

| power =

| launch_date = {{start date|1994|03|13|22|32|00|7=Z}}

| launch_rocket = Taurus 1110

| launch_site = Vandenberg AFB

| launch_contractor =

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}}

Technology for Autonomous Operational Survivability (TAOS) (also known as Space Test Experiment Platform 0 (STEP 0) and USA101) was a satellite developed by the US Air Force's Phillips Laboratory (now part of the Air Force Research Laboratory Space Vehicles Directorate) to test technology for autonomous operation of spacecraft.{{cite web | url=http://www.globalsecurity.org/space/systems/taos.htm | title=Technology for Autonomous Operational Survivability | accessdate=2008-08-03 | publisher=GlobalSecurity.org}}{{cite web | url=http://www.astronautix.com/s/step0taosp90-5.html | archive-url=https://web.archive.org/web/20170613131020/http://www.astronautix.com/s/step0taosp90-5.html | url-status=dead | archive-date=June 13, 2017 | title=Encyclopedia Astronautica: TAOS | accessdate=2011-08-27 | publisher=Encyclopedia Astronautica}}

The TAOS mission was operated by heritage Space Test and Development Wing and the 1st Space Operations Squadron.{{cite web|title=Schriever AFB Public Affairs: 1st Space Operations Squadron Fact Sheet|url=http://www.schriever.af.mil/library/factsheets/factsheet.asp?id=3912|archiveurl=https://web.archive.org/web/20090412042641/http://www.schriever.af.mil/library/factsheets/factsheet.asp?id=3912|archivedate=2009-04-12|url-status=dead|accessdate=2009-04-14}}