Citing OMNI data set usage Thanks for using SPDF's OMNIWeb! Citations to use of OMNI data should be made inline in the body of text when first appropriate and/or in an Acknowledgement section. Examples of the first would be "...[mention of parameters used] as extracted from NASA/GSFC's OMNI data set through OMNIWeb..." In an Acknowledgement section: "We acknowledge use of NASA/GSFC's Space Physics Data Facility's OMNIWeb (or CDAWeb or ftp) service, and OMNI data." If you have used data from few sources within OMNI, you should also cite the Principal Investigators who provided those data to OMNI and who are identified in the OMNIWeb-accessible OMNI documentation files. See https://omniweb.sci.gsfc.nasa.gov/html/ow_data.html or https://omniweb.sci.gsfc.nasa.gov/html/HROdocum.html Specifically for use of OMNI data at hourly or lower resolution, you might cite from your text: King, Joseph H. and Natalia E. Papitashvili, Solar wind spatial scales in and comparisons of hourly Wind and ACE plasma and magnetic field data, J. Geophys. Res., 110, A02104, 2005. Please acknowledge the OMNI sources, using the following DOIs for the OMNI datasets: Papitashvili, Natalia E. and King, Joseph H. (2022), "OMNI 1-min Data" [Data set], NASA Space Physics Data Facility, https://doi.org/10.48322/45bb-8792 Papitashvili, Natalia E. and King, Joseph H. (2022), "OMNI 5-min Data" [Data set], NASA Space Physics Data Facility, https://doi.org/10.48322/gbpg-5r77 Papitashvili, Natalia E. and King, Joseph H. (2022), "OMNI Hourly Data" [Data Set], NASA Space Physics Data Facility, https://doi.org/10.48322/1shr-ht18 Papitashvili, Natalia E. and King, Joseph H. (2022), "OMNI Daily Data" [Data set], NASA Space Physics Data Facility, https://doi.org/10.48322/5fmx-hv56 Papitashvili, Natalia E. and King, Joseph H. (2022), "OMNI 27-Day Data" [Data set], NASA Space Physics Data Facility, https://doi.org/10.48322/nmh3-jf75 The OMNI data are also available from CDAWeb, and thus available via various other methods https://cdaweb.gsfc.nasa.gov/alternative_access_methods.html In particular, you might find our Python web service library useful https://pypi.org/project/cdasws Or through the HAPI streaming protocol https://github.com/hapi-server/client-python