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	<Identification_Area>
		<logical_identifier>urn:esa:psa:em16_tgo_acs:data_raw</logical_identifier>
		<version_id>1.0</version_id>
		<title>ExoMars 2016 ACS Raw-level Data Product Collection</title>
		<information_model_version>1.21.0.0</information_model_version>
		<product_class>Product_Collection</product_class>
		<Citation_Information>
			<author_list>Oleg Korablev</author_list>
			<publication_year>2018</publication_year>
			<description>ExoMars TGO ACS Instrument</description>
		</Citation_Information>

		<Modification_History>
			<Modification_Detail>
				<modification_date>2025-08-11</modification_date>
				<version_id>1.0</version_id>
				<description>Collection file automatically created by the PSA PDS4 Delivery Packager</description>
			</Modification_Detail>
		</Modification_History>

	</Identification_Area>

	<Context_Area>
		<Time_Coordinates>
			<start_date_time>2016-03-05T00:00:00Z</start_date_time>
			<stop_date_time>2030-12-31T23:59:59Z</stop_date_time>
		</Time_Coordinates>
		<Primary_Result_Summary>
			<purpose>Science</purpose>
			<processing_level>Raw</processing_level>
			<description>Raw Data Collection</description>
			<Science_Facets>
				<wavelength_range>Infrared</wavelength_range>
				<domain>Atmosphere</domain>
				<discipline_name>Spectroscopy</discipline_name>
			</Science_Facets>
		</Primary_Result_Summary>
		
		<!-- Mission -->
		<Investigation_Area>
			<name>ExoMars 2016</name>
			<type>Mission</type>
			<Internal_Reference>
				<lid_reference>urn:esa:psa:context:investigation:mission.em16</lid_reference>
				<reference_type>collection_to_investigation</reference_type>
			</Internal_Reference>
		</Investigation_Area>
		
		<Observing_System>
			<name>ExoMars 2016 ACS</name>
			
			<!-- Instrument Host -->
			<Observing_System_Component>
				<name>TGO</name>
				<type>Host</type>
				<Internal_Reference>
					<lid_reference>urn:esa:psa:context:instrument_host:spacecraft.tgo</lid_reference>
					<reference_type>is_instrument_host</reference_type>
				</Internal_Reference>
			</Observing_System_Component>
			
			<!-- Instrument -->
			<Observing_System_Component>
				<name>ACS</name>
				<type>Instrument</type>
				<description>Instrument ACS</description>
				<Internal_Reference>
					<lid_reference>urn:esa:psa:context:instrument:tgo.acs</lid_reference>
					<reference_type>is_instrument</reference_type>
				</Internal_Reference>
			</Observing_System_Component>
			
		</Observing_System>
		
		<Target_Identification>
			<name>MARS</name>
			<type>Planet</type>
			<description>Planet Mars</description>
			<Internal_Reference>
				<lid_reference>urn:nasa:pds:context:target:planet.mars</lid_reference>
				<reference_type>data_to_target</reference_type>
			</Internal_Reference>
		</Target_Identification>
		
	</Context_Area>
	
	<Reference_List>
		<External_Reference>
			<doi>10.57780/esa-yy83w6t</doi>
			<reference_text>ExoMars 2016 ACS Raw-level Data Product Collection</reference_text>
		</External_Reference>
	</Reference_List>
	
	<Collection>
		<collection_type>Data</collection_type>
		<description>
			ACS
			===
			
			The Atmospheric Chemistry Suite (ACS) instrument is an element of the Russian contribution to the 
			ESA/Roscosmos ExoMars 2016 Trace Gas Orbiter (TGO) mission. The instrument hardware was built in 
			the Space Research Institute of the Russian Academy of Sciences (IKI) with international collaborations of 
			LATMOS (CNRS) in France, the German Institut für Planetenforschung (DLR) and the Institute of Physics 
			of interplanetary Space (IFSI) in Italy. 
			
			ACS consists of three separate infrared channels, sharing common mechanical, electrical, 
			and thermal interfaces: NIR (0.73 to 1.6 μm), MIR (2.3 to 4.3 μm) and TIRVIM (or TIR, 1.7 to 17 μm). 			
			Measurements are carried out in solar occultation mode for all channels, and in nadir mode for NIR and TIRVIM.
			Note that TIRVIM was working in science mode up to December 3rd, 2019.
			
			This ensemble of spectrometers has been designed and developed in response to the TGO objectives that specifically 
			address the requirement of high sensitivity instruments to enable the unambiguous detection of trace gases of 
			potential geophysical or biological interest.
						
			The Principal Investigator is Oleg Korablev, Space Research Institute (IKI), Russian Academy of Sciences.
			
			The data_raw collection
			=======================
			
			The raw data collection contains the raw science and housekeeping data from the instrument and the data is released 
			publicly on a daily basis with a six month lag from the data being obtained. 
				
			Physically the collection is organised by science phase, then orbit range in groups of 100 orbits, then orbit. 
			
			A description of the raw data products is given in the ACS Experiment to Archive Interface Control Document (EAICD), available  
			under the Documents tab in the PSA user interface or via the Document Collection on the PSA 
			ftp page (http://archives.esac.esa.int/psa/ftp/ExoMars2016/em16_tgo_acs/document). 
			
			A quick start guide can also be found at: https://issues.cosmos.esa.int/socciwiki/display/PSAPUB1/ACS+Quick+Start+Guide. 
		</description>
	</Collection>

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			<file_name>collection_data_raw.csv</file_name>
			<records>274032</records>
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			<offset unit="byte">0</offset>
			<parsing_standard_id>PDS DSV 1</parsing_standard_id>
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			<record_delimiter>Carriage-Return Line-Feed</record_delimiter>
			<field_delimiter>Comma</field_delimiter>

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					<data_type>ASCII_String</data_type>
					<maximum_field_length unit="byte">1</maximum_field_length>
					<description>
						This columns specifies the status type of the files that
						comprise the collection.
					</description>
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			<reference_type>inventory_has_member_product</reference_type>

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