ISO 27875:2019/Amd 1:2020 PDF

Name: ISO 27875:2019/Amd 1:2020 — Space systems — Re-entry risk management for unmanned spacecraft and launch vehicle orbital stages — Amendment 1: Formula to obtain Ec by the product of the probability of impact on a specific latitude band, and the population within the band, which is integrated over the latitude range covered by the orbital inclination
SKU: ISO 27875:2019/Amd 1:2020
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Space systems — Re-entry risk management for unmanned spacecraft and launch vehicle orbital stages — Amendment 1: Formula to obtain Ec by the product of the probability of impact on a specific latitude band, and the population within the band, which is integrated over the latitude range covered by the orbital inclination

Название (английский):

ISO 27875:2019/Amd 1:2020

Space systems — Re-entry risk management for unmanned spacecraft and launch vehicle orbital stages — Amendment 1: Formula to obtain Ec by the product of the probability of impact on a specific latitude band, and the population within the band, which is integrated over the latitude range covered by the orbital inclination

Статус документа:: Отменён
Формат:: Электронный (PDF)
Количество страниц:: 1
Дата публикации:: 8 сентября 2020 г.
Издание:: ISO IS 27875 edition 2 version 1
ICS:: 49.140

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Abstract

Overview

Key Topics

Re-entry Risk Management Focuses on evaluating and minimizing potential risks when unmanned spacecraft and orbital vehicle stages re-enter Earth's atmosphere.
Casualty Expectation Formula (Ec) Ec is calculated as the product of:
- The probability of impact on discrete latitude bands (Pi)
- The population within those latitude bands (Ni) The summation integrates this product over the range of latitudes defined by the spacecraft’s orbital inclination.
Latitude-based Probability Integration The amendment replaces previous approximations with a more exact calculation by dividing Earth's surface into latitude bands, allowing for a nuanced risk evaluation.
Population Exposure Assessment Incorporates the spatial distribution of human populations across latitude bands to assess potential casualty impact more realistically.
Orbital Inclination Consideration Recognizes how different orbital paths affect the latitude bands over which risk calculations must be integrated.

Applications

Space Mission Safety Analysis Enables aerospace engineers and mission planners to better predict casualty risks from uncontrolled re-entries by factoring in geographic and demographic variations.
Launch Vehicle and Spacecraft Design Supports designers in incorporating safety margins related to possible debris fallout zones, aiding compliance with international safety standards.
Regulatory Compliance and Risk Reporting Facilitates adherence to international regulations on space debris mitigation and re-entry risk disclosure by providing a standardized risk evaluation method.
Disaster Preparedness and Emergency Response Planning Improves authorities’ ability to anticipate and mitigate the humanitarian impact of spacecraft debris re-entry incidents on affected populations.

Related Standards

ISO 27874 - Space systems - Debris mitigation planning for spacecraft
UL 4600 - Safety analysis of autonomous and unmanned space systems
NASA-STD-8719 - NASA safety requirements for flight operations and re-entry risk management
ISO 24113 - Space debris mitigation requirements

These related standards complement ISO 27875 by addressing broader aspects of space system safety, debris mitigation, and operational risk management.

By adopting ISO 27875:2019/Amd 1:2020, aerospace organizations gain a scientifically rigorous framework to quantify and manage re-entry risks geographically and demographically. This helps reduce hazards from unmanned re-entries, promoting safer space operations worldwide.

Технические детали

Технический комитет: ISO/TC 20/SC 14 - Space systems and operations
SKU: ISO 27875:2019/Amd 1:2020

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ISO 27875:2019

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