<_Note>Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness. 2.6.1 <_MasterURL>https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/imap_codice_l3a_lo-direct-events_00000000_v01.json (from all.xml) <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json IMAP Mission CoDICE Lo Instrument Direct Events <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description imap_codice_l3a_lo-direct-events <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source Like its sister instrument Solar Wind and Pickup Ions (SWAPI), the CoDICE instrument collects and counts two types of particles: ones from the solar wind flowing from the Sun and particles called pick-up ions (PUIs) that entered the heliosphere from outside our solar neighborhood and traveled inwards where IMAP orbits about a million miles from the Earth. The solar wind particles CoDICE collects and sorts are highly energized particles, called suprathermal particles, which are moving faster (and therefore have higher energy) than the solar wind particles that SWAPI collects. CoDICE also simultaneously measures the velocity, direction of travel, energies, and types of specific species of PUIs from the local interstellar medium, the interstellar material surrounding our solar system found directly outside of the heliosphere. Some of these are hydrogen and helium ions like SWAPI, but CoDICE is also able to collect and analyze heavier ions than SWAPI can. <_Description>Source: Master/CDFglobalAttributes/TEXT Users should acknowledge the sources of data used in all publications, presentations, and reports using an appropriate DOI. Appropriate acknowledgement to institutions, personnel, and funding agencies should be given, including acknowledging the IMAP Mission Principal Investigator, Prof. David J. McComas of Princeton University (Contract #80GSFC19C0027). IMAP Rules-of-the-Road for data usage can be found in the IMAP CMAD. <_Acknowledgement>Source: Master/CDFglobalAttributes/Acknowledgement <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ https://imap.princeton.edu/ IMAP The Interstellar Mapping and Acceleration Probe <_Note>URL also in all.xml. Using master. https://link.springer.com/collections/djacjcecei IMAP Mission and Science Instruments Special Paper Collection <_Note>URL also in all.xml. Using master. https://spdf.gsfc.nasa.gov/pub/data/imap/documents/cmad/ IMAP Calibration and Measurement Algorithms Document (CMAD) <_Note>URL also in all.xml. Using master. All IMAP data products are publicly released and citable for use in publications. Please consult the IMAP team publications and personnel for further details on production, processing, and usage of these data. <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2026-02-01T00:01:01Z 2026-04-30T15:13:04Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT3M58.863009S <_Cadence>Counts based on variable 'epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/imap/codice/l3a/lo-direct-events/2026/imap_codice_l3a_lo-direct-events_20260201_v001.0009.cdf. The most common cadence, 238863009000 [ns] = PT3M58.863009S, occurred for 3.8889% of the 14 timesteps. <_ObservedRegion>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json <_ProcessingLevel>Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/imap/codice/l3a/lo-direct-events In CDF via HTTP from CDAWeb imap_codice_l3a_lo-direct-events_%Y%m%d_%Q.cdf %Y IMAP_CODICE_L3A_LO-DIRECT-EVENTS CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/imap/codice/l3a/lo-direct-events In CDF via HTTP from CDAWeb imap_codice_l3a_lo-direct-events_%Y%m%d_%Q.cdf %Y IMAP_CODICE_L3A_LO-DIRECT-EVENTS CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University CDAWeb Web Service https://cdaweb.gsfc.nasa.gov/WebServices/ Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made. IMAP_CODICE_L3A_LO-DIRECT-EVENTS CDF CSV GIF NetCDF PNG PS PDF XML x_Script.IDL x_Script.Python Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=IMAP_CODICE_L3A_LO-DIRECT-EVENTS IMAP_CODICE_L3A_LO-DIRECT-EVENTS Web service user interface for this product. CDF GIF PDF Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/IMAP_CODICE_L3A_LO-DIRECT-EVENTS/clientLibraryExample/ IMAP_CODICE_L3A_LO-DIRECT-EVENTS Web service that generates a Python script to access this product. x_Script.IDL x_Script.Python spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/SSCWeb. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=IMAP_CODICE_L3A_LO-DIRECT-EVENTS IMAP_CODICE_L3A_LO-DIRECT-EVENTS Web Service to this product. HTML spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=IMAP_CODICE_L3A_LO-DIRECT-EVENTS IMAP_CODICE_L3A_LO-DIRECT-EVENTS Web Service to this product using the HAPI interface. CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=IMAP_CODICE_L3A_LO-DIRECT-EVENTS&return=script IMAP_CODICE_L3A_LO-DIRECT-EVENTS Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API. x_Script.IDL x_Script.Javascript x_Script.MATLAB x_Script.Python x_Script.Autoplot x_Script.curl x_Script.wget spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Prof. David J. McComas at Princeton University HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=IMAP_CODICE_L3A_LO-DIRECT-EVENTS&format=gallery IMAP_CODICE_L3A_LO-DIRECT-EVENTS Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Interstellar Mapping and Acceleration Probe (from all.xml/observatory/description/@short) Compact Dual Ion Composition Experiment (from all.xml/instrument/description/@short) Solar Physics (from Master/CDFglobalAttributes/Discipline) Heliospheric Physics (from Master/CDFglobalAttributes/Discipline) IMAP (from Master/CDFglobalAttributes/Source_name) Interstellar Mapping and Acceleration Probe (from Master/CDFglobalAttributes/Source_name) L3A_lo-direct-events (from Master/CDFglobalAttributes/Data_type) Level-3A direct events (from Master/CDFglobalAttributes/Data_type) CoDICE (from all.xml/instrument/@ID) Epoch epoch CATDESC: 'Time, number of nanoseconds since J2000 with leap seconds included'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' ns Scalar Temporal Epoch Delta epoch_delta Master CDF CATDESC: 'Epoch delta'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' ns -9223372036854775808 Acquisition Time acquisition_time_per_esa_step Master CDF CATDESC: 'Acquisition time for each step of energy'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' ms -1e+31 128 APD Energy apd_energy Master CDF CATDESC: 'Deposited energy at APD'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' keV -1e+31 7 10000 APD ID apd_id Master CDF CATDESC: 'APD ID'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 7 10000 Data quality data_quality Master CDF CATDESC: 'Data quality (0=good, 1=suspect)'. Master CDF VAR_NOTES: 'Propagated from packet-level suspect bit via level 2. 0=good packet group. 1=suspect packet group.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 0=good 1=suspect 255 7 Elevation elevation Master CDF CATDESC: 'Elevation per event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' degrees -1e+31 7 10000 Energy per Charge energy_per_charge Master CDF CATDESC: 'Energy per Charge'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' keV/q -1e+31 7 10000 Energy Step energy_step Master CDF CATDESC: 'Energy Step Index'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 7 10000 Gain gain Master CDF CATDESC: 'Gain'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 7 10000 Half Spin Number half_spin_per_esa_step Master CDF CATDESC: 'Half spin number for each step of energy'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 128 Mass mass Master CDF CATDESC: 'Mass of event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' amu -1e+31 7 10000 Mass per charge mass_per_charge Master CDF CATDESC: 'Mass per charge of event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' amu/q -1e+31 7 10000 Multi flag multi_flag Master CDF CATDESC: 'Multiple detector flag (1=multiple APDs triggered)'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 1=multiple APDs triggered 255 7 10000 Normalization factor normalization Master CDF CATDESC: 'Normalization factor'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' -1e+31 7 128 24 Normalization factor normalization_per_event Master CDF CATDESC: 'Normalization per event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' -1e+31 7 10000 NSO Energy Step nso_esa_step Master CDF CATDESC: 'Energy Step When No Scan Operation (NSO) was activated'. Master CDF VAR_NOTES: 'Indicates the energy step when No Scan Operation (NSO) was activated. In NSO, the ESA voltage is set to the first step in the scan and remains fixed until the next cycle boundary.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 NSO Spin Sector nso_spin_sector Master CDF CATDESC: 'Spin Sector When No Scan Operation (NSO) was activated'. Master CDF VAR_NOTES: 'Indicates the spin sector when No Scan Operation (NSO) was activated. In NSO, the ESA voltage is set to the first step in the scan and remains fixed until the next cycle boundary.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 NSO Half Spin nso_half_spin Master CDF CATDESC: 'When No Scan Operation (NSO) was activated'. Master CDF VAR_NOTES: 'Indicates the half spin when No Scan Operation (NSO) was activated. In NSO, the ESA voltage is set to the first step in the scan and remains fixed until the next cycle boundary.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' half spin number 255 Number of events num_events Master CDF CATDESC: 'Number of events'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 65535 7 Position index position Master CDF CATDESC: 'Position index per event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 7 10000 RGFO Energy Step rgfo_esa_step Master CDF CATDESC: 'Energy Step When Reduced Gain Factor Operation (RGFO) was activated'. Master CDF VAR_NOTES: 'Indicates the energy step when Reduced Gain Factor Operation (RGFO) was activated. In RGFO, the Entrance ESA voltage is reduced in order to limit the number of ions that reach the detectors.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 RGFO Spin Sector rgfo_spin_sector Master CDF CATDESC: 'Spin Sector When Reduced Gain Factor Operation (RGFO) was activated'. Master CDF VAR_NOTES: 'Indicates the spin sector when Reduced Gain Factor Operation (RGFO) was activated. In RGFO, the Entrance ESA voltage is reduced in order to limit the number of ions that reach the detectors.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 RGFO Half Spin rgfo_half_spin Master CDF CATDESC: 'Half Spin When Reduced Gain Factor Operation (RGFO) was activated'. Master CDF VAR_NOTES: 'Indicates the half spin when Reduced Gain Factor Operation (RGFO) was activated. In RGFO, the Entrance ESA voltage is reduced in order to limit the number of ions that reach the detectors.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 Spin angle spin_angle Master CDF CATDESC: 'Spin angle per event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' degrees -1e+31 7 10000 Spin sector spin_sector Master CDF CATDESC: 'Spin sector per event'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 255 7 10000 Time of flight tof Master CDF CATDESC: 'Time of flight'. Master CDF VAR_NOTES: ''. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' ns -1e+31 7 10000 PHA Type type Master CDF CATDESC: 'Event PHA Type: 0=TCR; 1=DCR, 2=APD only'. Master CDF VAR_NOTES: 'PHA type code. 0 = TCR (Triple Coincidence, STA + STB + SP + APD); 1 = DCR (Double Coincidence, STA + STB + SP); 2 = APD-only energy event (APD with one or two of STA, STB, SP).'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is epoch.' 0=TCR; 1=DCR, 2=APD only 255 7 10000