CDAWeb Data Explorer

Select start and stop times from which to GET or PLOT data:

        Start time (YYYY/MM/DD HH:MM:SS.mmm):

        Stop time  (YYYY/MM/DD HH:MM:SS.mmm):

Compute uniformly spaced binned data for scalar/vector/spectrogram data (not available with noise filtering)

Use spike removal to filter data without binning (not available with noise filtering)(Warning: Experimental !!).

Select an activity:

Data Availability Chart : Generate a chart showing when data is available for the selected data set(s) and time range (Select > 1day).

List Data (ASCII/CSV): select one or more variables from list below and press submit. (Works best for < 31 days)

Download original files : press submit button to retrieve list of files. (Max. 200 days - use HTTPS site for larger requests)

Create V3.9 CDFs for download: select one or more variables from the list below and press submit.

Create audio files based on data from selected variables. More information about audification.

Note: CDF patch required for reading Version 3.9 CDFs in IDL or MATLAB.

Get CDFX - IDL GUI plotting/listing toolkit software. To be used with either the daily or "created" CDF files available above.

Pressing the "Submit" button will spawn a new window/tab in order to support the new "Previous" and "Next" functions.

Variable parameters (required for Listing, Creating and Plotting data only)

THD_L2_FGM: Spacecraft-collected fluxgate magnetometer, Decimated TeleMetry High, DSL, GSE and GSM coordinates - V. Angelopoulos, U. Auster & K.H. Glassmeier and W. Baumjohann (UCB, TUBS and IWF respectively, NASA NAS5-02099)
Available dates: 2007/02/23 00:00:00 - 2025/04/02 00:00:00 Info/DOI Metadata Archive
(Continuous coverage not guaranteed - check the inventory graph for coverage)

FGM-FGS Data Quality (0: Good data, 1:boom not deployed, 2:in shadow, 3:uncorrected shadow, 4:noisy waveforms)
(Good data only) FGS magnetic field B magnitude
---- FGS (spin-resolution/~3 sec) magnetic field B in XYZ GSE Coordinates
---- FGS (spin-resolution/~3 sec) magnetic field B in XYZ GSM Coordinates
---- FGS magnetic field B in DSL (Despun Spacecraft) Coordinates
(All Qualities data) FGS magnetic field B magnitude
---- FGS (spin-resolution/~3 sec) magnetic field B in XYZ GSE Coordinates
---- FGS magnetic field B in XYZ GSM Coordinates
---- FGS magnetic field B in XYZ DSL (Despun Spacecraft) Coordinates
FGM-FGL Data Quality (0: Good data, 1:boom not deployed, 2:in shadow, 3:uncorrected shadow, 4:noisy waveforms)
(Good data only) FGL magnetic field B magnitude
---- FGL (low-resolution/~0.25 sec) magnetic field B in XYZ GSE Coordinates
---- FGL (low-resolution/~0.25 sec) magnetic field B in XYZ GSM Coordinates
---- FGL magnetic field B in DSL (Despun Spacecraft) Coordinates
---- FGL magnetic field B in SSL (Spinning Spacecraft) Coordinates
(All Qualitities data) FGL magnetic field B magnitude
---- FGL (low-resolution/~0.25 sec) field B in XYZ GSE Coordinates
---- FGL magnetic field B in XYZ GSM Coordinates
---- FGL magnetic field B in XYZ DSL (Despun Spacecraft) Coordinates
---- FGL magnetic field B in XYZ SSL (Spinning Spacecraft) Coordinates
FGM-FGH Data Quality (0: Good data, 1:boom not deployed, 2:in shadow, 3:uncorrected shadow, 4:noisy waveforms)
(Good data only) FGH magnetic field B magnitude
---- FGH (high-resolution/~0.008 sec) magnetic field B in XYZ GSE Coordinates
---- FGH (high-resolution/~0.008 sec) magnetic field B in XYZ GSM Coordinates
---- FGH magnetic field B in DSL (Despun Spacecraft) Coordinates
---- FGH magnetic field B in SSL (Spinning Spacecraft) Coordinates
(All Qualities) FGH magnetic field B magnitude
---- FGH (high-resolution/~0.008 sec) magnetic field B in XYZ GSE Coordinates
---- FGH magnetic field B in XYZ GSM Coordinates
---- FGH magnetic field B in XYZ DSL (Despun Spacecraft) Coordinates
----FGH magnetic field B in XYZ SSL (Spinning Spacecraft) Coordinates
FGM-FGE Data Quality (0: Good data, 1:boom not deployed, 2:in shadow, 3:uncorrected shadow, 4:noisy waveforms)
(Good data only) FGE magnetic field B magnitude
---- FGE (engineering mode) magnetic field B in XYZ GSE Coordinates
---- FGE (engineering mode) magnetic field B in XYZ GSM Coordinates
---- FGE (engineering mode) magnetic field B in DSL Coordinates
---- FGE (engineering mode) magnetic field B in SSL Coordinates
(All Qualities) FGE (engineering) magnetic field B magnitude
---- FGE (engineering mode) magnetic field B in XYZ GSE Coordinates
---- FGE magnetic field B in XYZ GSM Coordinates
---- FGE magnetic field B in XYZ DSL (Despun Spacecraft) Coordinates
---- FGE magnetic field B in XYZ SSL (Spinning Spacecraft) Coordinates

[THEMIS FGM Processing History]
[Higher resolution data and analysis s/w from THEMIS mission website]
[Detailed description of the FGM instrument]

Pressing the "Submit" button will spawn a new window/tab in order to support the new "Previous" and "Next" functions.

Notices/Warnings
Data Inventory Graphs (full, 5 year and by mission)
Full list of CDAWeb data sets.
CDFX - IDL GUI plotting/listing toolkit software.
CDAWeb Data File Directories (shows actual data inventory)
SPDF Home Page

NASA Official: Robert M. Candey
(301)286-6707, Robert.M.Candey@nasa.gov
Curator: Tami Kovalick
Last Modified: 3 Apr 2025

Contact SPDF: NASA-SPDF-Support@nasa.onmicrosoft.com
+ Privacy Policy and Important Notices
+ Accessibility

Binning interval:
Method to handle missing values:	Use Fill Value	Interpolate
Spike removal method:
More information about binning is available here.