COHOWeb/Ulysses

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From cohoweb.gsfc.nasa.gov on January 16 2017 22:40:21.

Contents

  1. Summary
  2. Notes
  3. Acknowledgment
  4. Data
    1. Merged Plots and Files
    2. Data Subsets

1. Summary

COHOWeb data development starts with hourly-resolution data files provided to NSSDC by Principal Investigators on the relevant spacecraft missions. These files were typically, but not necessarily, in ASCII format. Some contained magnetic field data and others plasma data. Most had spacecraft position data. There were multiple coordinate systems used to specify magnetic field, flow velocity and spacecraft position vectors.

At NSSDC a new set of spacecraft-specific hourly ASCII records ("COHOWeb-input records" in the terminology of Section 1 above) was created wherein magnetic field, plasma and spacecraft position data were merged. Each such record contained a common set of parameters, including magnetic field Cartesian components in RTN coordinates and spacecraft position data in Heliographic Inertial (HGI) coordinates. These coordinate systems are defined below. Coordinate transformations, when needed, were performed by NSSDC. Some spacecraft-specific records had a few additional spacecraft-specific parameters.

2. Notes

To improve access speed, data are derived from cache of original data source on December 1, 2008. See Notes#Versioning for more information about versioning and caching.

3. Acknowledgment

  • Cite: From http://cohoweb.gsfc.nasa.gov/html/cw_data.html: Acknowledgements to the SPDF COHOWeb database or to ANON/FTP data files as the source of data used in publications is requested. Copies of preprints or reprints of publications sent to John Cooper (address above) would be appreciated for tracking purposes.
  • Data set contact: See metadata

4. Data

4.1. Merged Plots and Files

  • Overview data coverage plot: | png | pdf | eps |

4.2. Data Subsets

data/COHOWeb/Ulysses/xml/COHOWeb Ulysses-ORDER-0.htm - ViRBO

data/COHOWeb/Ulysses/xml/COHOWeb Ulysses-ORDER-0.htm

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