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VISSR/SMS-1 Level 1 Experimenter History Data V001 (VISSRSMS1L1EHT) at GES DISC

Metadata Updated: December 6, 2023

VISSRSMS1L1EHT is the Visible Infrared Spin-Scan Radiometer (VISSR) Level 1 Experimenter History Tape (EHT) data product from the first Synchronous Meteorological Satellite (SMS-1). Each data file contains a segment of the Earth with radiances that were measured in the visible (0.55 to 0.70 micrometer) and/or IR (10.5 to 12.6 micrometer) wavelengths with a spatial resolution of 0.9 and 8 km, respectively. Files also include time, geolocation, orbit, attitude, and telemetry information. A data file is structured with a header, followed by an IR scan line and then 8 visible scan lines (although some files only contain IR scans). Visible scans are at full resolution of 15288 pixels and a file will contain several hundred scan lines. IR scans are at 3822 pixels and up to a hundred scan lines. A full scan of the Earth was made every 20 minutes.

Data for this product are only available for 9 days: 1974/08/23 (IR only), 1974/08/27 (IR only), 1974/08/31, 1974/09/01, 1974/09/02, 1974/09/05, 1974/09/24 (IR only), 1975/01/10, and 1975/02/17. The SMS-1 satellite was initially parked over the equator at longitude 45W on June 7, 1974 viewing the hemisphere below the satellite to support the GARP Atlantic Tropical Experiment (GATE). It was moved to its operational position at 75W on Nov 15, 1974 where it remained until GOES-1 was launched, after which SMS 1 was moved to 105W and placed in stand-by-mode as a backup to GOES-1 or SMS-2. The VISSR experiment was operated by the NOAA National Environmental Satellite Data and Information Service (NESDIS), as well as scientists from NASA Goddard Space Flight Center.

This product was previously available from the NSSDC with the identifier ESAD-00126 (old ID 74-033A-01A).

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


Metadata Created Date November 12, 2020
Metadata Updated Date December 6, 2023

Metadata Source

Harvested from NASA Data.json

Graphic Preview

Typical SMS 1 VISSR EHT data showing an infrared scene at top, and visible scene at bottom.

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date December 6, 2023
Identifier C1695766381-GES_DISC
Data First Published 2020-02-05
Language en-US
Data Last Modified 2020-05-18
Category GOES, geospatial
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Citation NASA/GSFC. 2020-02-20. VISSRSMS1L1EHT. Version 001. VISSR/SMS-1 Level 1 Experimenter History Data V001. Greenbelt, MD, USA. Archived by National Aeronautics and Space Administration, U.S. Government, Goddard Earth Sciences Data and Information Services Center (GES DISC). Digital Science Data.
Data Presentation Form Digital Science Data
Graphic Preview Description Typical SMS 1 VISSR EHT data showing an infrared scene at top, and visible scene at bottom.
Graphic Preview File
Harvest Object Id a2d90f7b-7823-4b39-9207-28d6ccddd40d
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Metadata Type geospatial
Old Spatial -135.0 -90.0 45.0 90.0
Program Code 026:001
Release Place Greenbelt, MD, USA
Source Datajson Identifier True
Source Hash 64f963dded830e6371d88d4c5f410d316a2658da6ef4ec3ef57c4de1f6b33167
Source Schema Version 1.1
Temporal 1974-08-23T00:00:00Z/1975-02-17T23:59:59.999Z

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