ALT meaning in Space Science ?

Answer: What is Altimeter mean?

An altimeter or an altitude meter is an instrument used to measure the altitude of an object above a fixed level. The measurement of altitude is called altimetry, which is related to the term bathymetry, the measurement of depth under water. The most common unit for altimeter calibration worldwide is hectopascals (hPa), except for North America and Japan where inches of mercury (inHg) are used. To obtain an accurate altitude reading in either feet or meters, the local barometric pressure must be calibrated correctly.

reference

Full Form	Category
Achievement Level Tests	Academic & Science
Arts Lecture Theatre	Academic & Science
Alenquer	Airport Code
Alternative	Banking
Allegheny Teledyne, Inc. (delisted)	Business
Association Leadership Team	Business
Analytica, Liimited	Business
Association for Linguistic Typology	Community
Advanced Learning Technologies	Community
Automatic Link Transfer	Computer and Networking
Assembly Line Type	Computer Assembly Language
Application Load Table	Computing
Algorithmic Learning Theory	Computing
Advanced Logic Technology	Computing
Automated Loop Test	Computing
Adaptive Lighting Technology	Computing
Analogue Loopback Transfer	Computing
Alt Linux Team	Computing
Alitas	Cryptocurrency
AltCrusaders	Cryptocurrency
AltCoin	Cryptocurrency
Alt.Estate token	Cryptocurrency
Alternating	Electronics
Wordperfect Library Menu File	File Type
Anti Labour Technican	General
Arte Lavoro Territorio	General
Angelic Light Transmissions	General
Alternative Method	General
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Aveo Lt	General
Assistant Language Teacher	Jobs
Alternative Lengthening of Telomeres	Medical
Abundant Larval Transcript	Medical
Argon Laser Trabeculoplasty	Medical
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Amino Alanine Transferase	Medical
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Administrative Lead Time	Military and Defence
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Airlake Terminal Railway	Regional
Alternate Key	Softwares
Altimeter	Space Science
Altitude	Space Science
Approach and Landing Test	Space Science
Alternate	Space Science
Association for Learning Technology	Technology