<?xml version="1.0" encoding="UTF-8"?>
<Instrument xmlns="https://metadata.pithia.eu/schemas/2.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink" xsi:schemaLocation="https://metadata.pithia.eu/schemas/2.2 https://metadata.pithia.eu/schemas/2.2/pithia.xsd">
<identifier>
<PITHIA_Identifier>
<localID>Instrument_GNSS_Scintillation_Receiver_PolaRxS_PolaRx5S</localID>
<namespace>septentrio</namespace>
<version>1</version>
<creationDate>2022-09-15T17:00:00Z</creationDate>
<lastModificationDate>2022-09-15T17:00:00Z</lastModificationDate>
</PITHIA_Identifier>
</identifier>
<name>GNSS Scintillation Receiver - PolaRxS/5S</name>
<description>
The Septentrio (https://www.septentrio.com/) PolaRxS and the newest PolaRx5S are multi-frequency multi-constellation receivers able to track GPS L1CA, L1P, L2C, L2P, L5; GLONASS L1CA, L2CA; Galileo E1, E5a, E5b, E5AltBoc; BeiDou B1, B2; SBAS L1. They are equipped with a low-noise OCXO oscillator and store, for every satellite in view and for every available frequency, the raw phase (in cycles) and post-correlation I and Q samples acquired at a sampling rate of 50/100 Hz. They are able to provide, with a 1-minute resolution, the amplitude (S4) and phase (sigma-phi) scintillation indices, together with the Total Electron Content (TEC) and its rate of change (ROT).
</description>
<type xlink:href="https://metadata.pithia.eu/ontology/2.2/instrumentType/GNSS-receiverScintillation"/> <!-- use the instrumentType ontology to describe the type of the instrument -->
<operationalMode>
<InstrumentOperationalMode>
<id>GNSS-high-sampling-rate</id> <!-- the id should not include any space characters. It is used to be referenced by Acquisition -->
<name>High-rate-GNSS-signals-sampling</name> <!-- it would be preferable the name of the mode not to include any space characters -->
<description>The sistem is capable to record the GNSS signal Raw phase (in cycles) and post-correlation I and Q samples acquired at high sampling rate (usually from 20 to 50/100 Hz).</description>
</InstrumentOperationalMode>
</operationalMode>
</Instrument>
