OBS meaning in Space Science ?

Answer: What is Observation mean?

Observation is the active acquisition of information from a primary source. In living beings, observation employs the senses. In science, observation can also involve the perception and recording of data via the use of scientific instruments. The term may also refer to any data collected during the scientific activity. Observations can be qualitative, that is, only the absence or presence of a property is noted, or quantitative if a numerical value is attached to the observed phenomenon by counting or measuring.

reference

Full Form	Category
Ocean Bottom Seismometer	Academic & Science
Orbiting Brown-dwarf Star	Academic & Science
Observatory	Academic & Science
Oklahoma Bicycle Society	Academic & Science
Organization of Bengali Students	Academic & Science
Optical Back Scatter	Accounts and Finance
Aubenas	Airport Code
Olympus BioSystems	Business
Open Book Systems	Business
Ocala Breeders' Sales Company	Business
Online Business School	Business
Organization Breakdown Structure	Business
Office of Business Services	Business
Overbrook School for the Blind	Community
Open broadcast software	Computing
Open Broadcasting Software	Computing
Object Script	Computing
On Board Switching	Computing
Oracle Balance Scorecard	Computing
Online Banking Solutions	Computing
Online Banking Services	Computing
One Basis	Cryptocurrency
Oracle Bridging System	Database Management
Objectscript Script File	File Type
Old Brandy Stunt	General
Organization of Black Screenwriters	General
Organization for Black Struggle	General
Orange Blossom Special	General
Organisational Breakdown Structure	General
Oriental Boy Soldiers	General
Oil Bunker Surcharge	General
Owen Biddle Shorty	General
Old Bastard Soros	General
Open Budget Survey	General
Oromia Broadcasting Service	General
Organizational Breakdown Structure	General
One Beautiful Steed	General
Office of Board Services	General
Orders of Battle System	General
Ocean Baseline System	General
O Broadcasting System	General
Other Beastly Secrets	General
Output Block Size	General
The Open Battle System	General
Others Before Self	General
Omni Bearing Selector	General
Online Book Store	General
Open Bidding Service	General
On Board System	General
Old Body Style	General
Road Obstruction	General
Outward Bound Singapore	Governmental
Oriental Blank Stare	Governmental
OBServe	Governmental
Operational Biomedical Sensor	Governmental
Organic Brain Syndrome	Medical
OBServer	Medical
Obliterative Bronchiolitis Syndrome	Medical
obstetric service	Medical
obstruction	Medical
Obstructive Bowel Syndrome	Medical
Oligoclonal Bands	Medical
Office Based Surgery	Medical
Osis (ocean Surveillance Information System) Baseline System	Military and Defence
Aubenas, France	Regional
Output-based Specification	Softwares
Opensuse Build Service	Softwares
Open Build Service	Softwares
Open Broadcaster Software	Softwares
On Board Software	Softwares
Observe, Observer	Space Science
Operational Bioinstrumentation System	Space Science
Operational Biomed Sensors	Space Science
Operational Biomedical System	Space Science
Observation	Space Science
Olympic Broadcasting Services	Sports
Out Back Sport	Sports