Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • SOHO LASCO COMET IMAGES V1.0

    Metadata Updated: August 22, 2025

    This data set contains images of Kreutz sungrazing comets that were obtained by the SOHO spacecraft from 1996-2005. Images have been processed by subtracting a bias, correcting for vignetting, and normalizing by the exposure time. A median of four neighboring images is then subtracted to remove the background. The resulting image has units of DN/sec. A 41x41 pixel array centered on the comet has been extracted for archiving. Future updates will contain Kreutz comets discovered since 2005, comets from the other sungrazing families (Marsden, Meyer, and Kracht), and other comets observed by SOHO.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    References

    https://pds.nasa.gov

    Dates

    Metadata Created Date January 31, 2023
    Metadata Updated Date August 22, 2025
    Data Update Frequency irregular

    Metadata Source

    Harvested from NASA Data.json

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 31, 2023
    Metadata Updated Date August 22, 2025
    Publisher National Aeronautics and Space Administration
    Maintainer
    Identifier urn:nasa:pds:context_pds3:data_set:data_set.soho-c-lasco-4-cometimages-v1.0_emdw-nni8
    Data First Published 2018-06-26
    Data Last Modified 2025-07-17
    Category Earth Science
    Public Access Level public
    Data Update Frequency irregular
    Bureau Code 026:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id d78506aa-f843-47ee-99a0-06d2d14e86d4
    Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
    Harvest Source Title NASA Data.json
    Homepage URL https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=SOHO-C-LASCO-4-COMETIMAGES-V1.0
    Program Code 026:005
    Related Documents https://pds.nasa.gov
    Source Datajson Identifier True
    Source Hash f26cae061e96c60a243289aab5af416c2a1ac1674f3b3e1b7a6da7f207397180
    Source Schema Version 1.1

    Didn't find what you're looking for? Suggest a dataset here.