Definition

A set of characteristics describing a Transfer Object (such as the size of this object, the description of its content, and its makeup in terms of one or more Data Object Types). Typically there can be multiple Transfer Objects conforming to the same Transfer Object Type.

Source: Producer-Archive Interface Specification (PAIS). Recommendation for Space Data System Standards, CCSDS 651.1-B-1. Blue Book. Issue 1. Washington, D.C.: CCSDS, February 2014. [Equivalent to ISO 20104:2015]

Introduction

Submission Information Packages (SIPs) include one or more Transfer Objects. A Transfer Object is a set of one or more Transfer Object Groups containing at least one Data Object that are to be transferred to the Archive.

PAIS 2.2 explains that:

Each Transfer Object is an instance of a particular Transfer Object Type. Each Transfer Object Type is described in detail by a Transfer Object Type Descriptor. A Transfer Object Type Descriptor consists of a set of mandatory, optional, and possibly user-defined attributes, and is generated for each type of Transfer Object.

Types of Transfer Objects

Coming soon.