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Contents

Purpose

The purpose of the Swarm Product Data Handbook is to provide a detailed description of the Swarm Level 1b and Swarm Level 2 products distributed to the Swarm users. These products include Swarm magnetic field models, ionospheric and thermospheric products, and Precise Orbit Solutions including supporting information. The product handbook is intended to support the use of the Level 1b and Level 2 products for further processing or application.

The Swarm Level 1b data products are the corrected and formatted output from each of the three Swarm satellites. By a complex assimilation of these individual satellite measurements into one set of products for the satellite constellation, the Swarm Level 2 Processor ensures a very significant improvement of the quality of the final scientific data products.

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Scope

This document defines the contents of the Swarm Level 1b Products, the intermediate and final data products, the auxiliary products of the Swarm Level 2 Processor, and the Quick look reports of Level 1b data. The definition and justification of Swarm Level 1b data is documented in [AD-5], Swarm Level 2 data and auxiliary products are documented in [AD-1] and [AD-2] of the ESA Swarm study under ESA contract no. 20969/07/NL/JA.

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Abbreviations

Acronym Description
ACC Accelerometer
ADC Analogue to Digital Converter
ADD Architecture Design Document
APDF Archiving and Payload Data Facility
AOCS Attitude & Orbit Control Subsystem
ANGARA Analysis of Non-Gravitational Accelerations due to Radiation and Aerodynamics
ASM Absolute Scalar Magnetometer
BGS British Geological Survey
CCDB Characterisation and Calibration Data Base
CDC Compact Detector Coil
CDR Critical Design Review
CI Comprehensive Inversion
CoG Center of Gravity
CSC Compact Spherical Coil
CRC Cycle Redundancy Code
CRF Common Reference Frame
DCG Document Contents Guidelines
DS Data Set
DSD Data Set Description
DSR Data Set Records
DNSC Danish National Space Center (now DTU Space)
DTU Technical University of Denmark
EADS European Aeronautic Defence and Space
EEF Earth Explorer Format / Eastward Electric Field
EESS End-to-End System Simulator
EFI Electric Field Instrument
EPS Electrical Power Subsystem ITRF
ESA European Space Agency
eu engineering unit
FAC Field-Aligned Current
GFZ GeoForschungsZentrum, Potsdam, germany
GNSS Global Navigation Satellite System
GPS Global Positioning System
GPSR GPS/GNSS Receiver
GS Ground Segment
HWM Horizontal Wind Model
ICRS International Celestial Reference System
ICGFM International Center for Global Earth Models
IERS International Earth Rotation Service
IGRF International Geomagnetic Reference Field
IGS International GNSS Service
IPGP Institut de Physique du Globe de Paris, France
IRI International Reference Ionosphere
ITRF International Terrestrial Reference Frame
ISP Instrument Source Packet
ITRS International Terrestrial Reference System
JPL Jet Propulsion Laboratory
KO Kick-Off
LDA Local Data Archive
LP Langmuir Probe
L2PS Level 2 Processing System
MSIS Mass Spectrometer and Incoherent Scatter
MOD Medium precision Orbit Determination
MPH Main Product Header
MPPF Mission Performance & Planning System
NEC North-East-Centre reference frame
N/A Not Applicable
NRL Naval Research Laboratory
PC Polar Cap index
PDGS Payload Data Ground Segment
PDS Payload Data Segment
PPS Pulse per Second
POD Precise Orbit Determination
S/C Spacecraft
SCARF Satellite Constellation Application and Research Facility
SMART Swarm Magnetic and Atmospheric Research Team
SOW Statement of Work
SPH Specific Product Header
SRD System Requirements Document
STR Star Tracker
SV Secular Variation
TBC To Be Confirmed
TBD To Be Defined
TCF Temporal Calibration File
TII Thermal Ion Imager
uc unsigned character
UTC Universal Time Coordinated
VFM Vector Field Magnetometer

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Swarm Product Filename Extension

The Swarm filename extensions have been changed since 19 January 2017 (11:00 UTC) in order to rationalise the product's filename extensions. There are no changes to files which have already been disseminated. More detailed information can be found in Swarm news changes introduced in Swarm product filename extension.

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