NASA Taxonomy

  1. Oberon
  2. object oriented programming USE Computer Programming and Software
  3. observation of celestial bodies USE Astronomy
  4. observation satellites USE Spacecraft Design, Testing and Performance
  5. observatories USE Astronomy
  6. OCCASSIST USE Employee Assistance
  7. OCCHEALTH USE Occupational and Environmental Health
  8. OCCHYGIENE USE Industrial Hygiene
  9. OCCMED USE Occupational Medicine
  10. OCCPHYSICS USE Health Physics
  11. occultation (astronomy) USE Astronomy
  12. Occupational and Environmental Health
  13. Occupational Health
  14. Occupational Medicine
  15. Occupational Safety Program Office
  16. ocean circulation USE Oceanography
  17. ocean color (remote sensing) USE Earth Resources and Remote Sensing
  18. ocean currents USE Oceanography
  19. ocean floor studies USE Oceanography
  20. Ocean Surface Topography Mission
  21. ocean wave studies USE Oceanography
  22. Oceanographic Science
  23. Oceanography
  24. OCEANSCI USE Oceanographic Science
  25. OCIO USE Office of the Chief Information Officer
  26. ODEO USE Office of Diversity and Equal Opportunity
  27. OER USE Office of External Relations
  28. OFCO USE Office of the Chief Financial Officer
  29. offgassing/outgassing (composite materials) USE Composite Materials
  30. offgassing/outgassing (metallic materials) USE Metals and Metallic Materials
  31. offgassing/outgassing (nonmetallic materials) USE Nonmetallic Materials
  32. Office
  33. Office of Center Operations
  34. Office of Chief Counsel (GSFC)
  35. Office of Chief Counsel (SSC)
  36. Office of Communication
  37. Office of Communications & Public Affairs
  38. Office of Communications and Education
  39. Office of Communications Planning
  40. Office of Diversity and Equal Opportunity
  41. Office of Diversity and Equal Opportunity (KSC)
  42. Office of Diversity and Equal Opportunity (MSFC)
  43. Office of Diversity and Equal Opportunity (SSC)
  44. Office of Education
  45. Office of Equal Opportunity Programs (GRC)
  46. Office of Equal Opportunity Programs (GSFC)
  47. Office of Export Compliance
  48. Office of External Affairs and Education
  49. Office of External Relations
  50. Office of Health and Medical Systems
  51. Office of Human Capital (MSFC)
  52. Office of Human Capital (SSC)
  53. Office of Human Capital Management
  54. Office of Human Capital Management (GSFC)
  55. Office of Infrastructure and Administration
  56. Office of Inspector General
  57. Office of Inspector General (KSC)
  58. Office of Legislative Affairs
  59. Office of Mission Integration
  60. Office of Mission Success
  61. Office of Procurement
  62. Office of Procurement (JSC)
  63. Office of Procurement (MSFC)
  64. Office of Program Analysis and Evaluation
  65. Office of Protective Services
  66. Office of Public Affairs (GSFC)
  67. Office of Research
  68. Office of Safety and Mission Assurance
  69. Office of Safety and Mission Assurance (SSC)
  70. Office of Safety and Mission Success
  71. Office of Science Planning
  72. Office of Security and Program Protection
  73. Office of Small and Disadvantaged Business Utilization
  74. Office of Strategic Analysis and Communications
  75. Office of Strategic Management
  76. Office of Systems Safety and Mission Assurance
  77. Office of the Administrator
  78. Office of the Associate Director (GSFC)
  79. Office of the Chief Counsel (ARC)
  80. Office of the Chief Counsel (GRC)
  81. Office of the Chief Counsel (JSC)
  82. Office of the Chief Counsel (KSC)
  83. Office of the Chief Counsel (MSFC)
  84. Office of the Chief Engineer
  85. Office of the Chief Engineer (ARC)
  86. Office of the Chief Engineer (JSC)
  87. Office of the Chief Engineer (KSC)
  88. Office of the Chief Financial Officer
  89. Office of the Chief Information Officer
  90. Office of the Chief Information Officer (GRC)
  91. Office of the Chief Information Officer (MSFC)
  92. Office of the Chief Scientist
  93. Office of the Chief Technologist
  94. Office of the Director (ARC)
  95. Office of the Director (DFRC)
  96. Office of the Director (GRC)
  97. Office of the Director (GSFC)
  98. Office of the Director (JPL)
  99. Office of the Director (JSC)
  100. Office of the Director (KSC)
  101. Office of the Director (LARC)
  102. Office of the Director (MSFC)
  103. Office of the Director (NESC)
  104. Office of the Director (SSC)
  105. Office of the Director (STSI)
  106. Office of the Director of Project Management and Engineering Directorate
  107. Office of the Director of Science
  108. Office of the Executive Director
  109. Office of the General Counsel
  110. Office of the Inspector General
  111. Office of the Management System
  112. Official Reports
  113. Officials
  114. Ofice of Equal Opportunity and Diversity (JSC)
  115. OIG USE Office of Inspector General
  116. Omega navigation system USE Aircraft Communications and Navigation
  117. Omnidirectional Radio Range System (OMNI) USE Aircraft Communications and Navigation
  118. onboard computer systems for aircraft USE Avionics and Aircraft Instrumentation
  119. onboard computer systems for spacecraft USE Spacecraft Instrumentation and Astrionics
  120. onboard instrument systems for spacecraft USE Spacecraft Instrumentation and Astrionics
  121. onboard sensors and recorders for spacecraft USE Spacecraft Instrumentation and Astrionics
  122. onboard solar arrays USE Spacecraft Propulsion and Power
  123. onboard solar generators USE Spacecraft Propulsion and Power
  124. Online Help USE Help Files
  125. operating systems (computers) USE Computer Programming and Software
  126. operational effects of atmospheric variables USE Aircraft Stability and Control
  127. Operational Interface Agreements USE Agreements
  128. Operational Precursor and Technology Demonstration
  129. Operations
  130. Operations
  131. Operations and Data Management
  132. operations research USE Systems Analysis and Operations Research
  133. operator theory (mathematics) USE Theoretical Mathematics
  134. Ophelia
  135. Optical and Infrared Astronomy
  136. optical bistability USE Optics
  137. optical coatings USE Optics
  138. optical communication (space) USE Space Communications, Spacecraft Communications, Command and Tracking
  139. optical communications (applications) USE Communications and Radar
  140. optical communications (theory) USE Optics
  141. optical fibers USE Optics
  142. optical imaging devices (design and techniques) USE Instrumentation and Photography
  143. optical imaging devices (theory) USE Optics
  144. optical materials USE Optics
  145. optical measuring instruments (design and techniques) USE Instrumentation and Photography
  146. optical properties USE Optics
  147. optical scanners (computer, peripheral equipment) USE Computer Operations and Hardware
  148. Optical Spectrographs
  149. Optical Systems
  150. optical telescope facilities USE Astronomy
  151. optical telescopes USE Astronomy
  152. Optical Telescopes
  153. optical tracking stations USE Ground Support Systems and Facilities (Space)
  154. optical waveguides USE Optics
  155. Optics
  156. optimization (mathematics) USE Systems Analysis and Operations Research
  157. opto-acoustic electronics USE Electronics and Electrical Engineering
  158. optoelectronics (applications) USE Electronics and Electrical Engineering
  159. optoelectronics (optics) USE Optics
  160. OPTSYS USE Optical Systems
  161. or are affected by design, development, testing, USE Aircraft Design, Testing and Performance
  162. Orbit determination
  163. orbit dynamics of spacecraft USE Astrodynamics
  164. orbit-on-demand vehicles USE Launch Vehicles and Launch Operations
  165. orbital maneuvers (control) USE Space Communications, Spacecraft Communications, Command and Tracking
  166. orbital maneuvers (trajectories) USE Astrodynamics
  167. orbital rendezvous USE Astrodynamics
  168. Orbital Sciences
  169. Orbiting Carbon Observatory Mission
  170. orbiting maneuvering vehicles USE Space Transportation and Safety
  171. OrbView-2
  172. ORFEUS-SPAS I
  173. ORFEUS-SPAS II
  174. organic chemistry USE Inorganic, Organic and Physical Chemistry
  175. Organizational Science Fundamental Research
  176. Organizational Structure
  177. Organizations
  178. organometallic materials USE Inorganic, Organic and Physical Chemistry
  179. origin of life (extraterrestrial) USE Exobiology
  180. origin of life (terrestrial) USE Life Sciences (General)
  181. Orion Crew Vehicle
  182. orography USE Earth Resources and Remote Sensing
  183. orotrons USE Lasers and Masers
  184. orthostatic tolerance USE Aerospace Medicine
  185. oscillators USE Electronics and Electrical Engineering
  186. oscilloscopes USE Instrumentation and Photography
  187. OSDBU USE Office of Small and Disadvantaged Business Utilization
  188. osmosis (biological) USE Life Sciences (General)
  189. osmosis (chemistry) USE Inorganic, Organic and Physical Chemistry
  190. OSPP USE Office of Security and Program Protection
  191. Other associated launch services
  192. Other NASA Partners
  193. outer Earth radiation belts USE Space Radiation
  194. output devices (computers) USE Computer Operations and Hardware
  195. overhaul facilities (aircraft) USE Research and Support Facilities (Air)
  196. overhaul facilities (space) USE Ground Support Systems and Facilities (Space)
  197. oxidizers USE Propellants and Fuels
  198. oxygen generation USE Aerospace Medicine
  199. oxygen systems (life support) USE Man/System Technology and Life Support
  200. ozone depletion (atmospheric physics) USE Geophysics