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


Metadata Updated: December 6, 2023

Abstract ======== The Mercury Dual Imaging System (MDIS) consists of two cameras, a Wide Angle Camera (WAC) and a Narrow Angle Camera (NAC), mounted on a common pivot platform. This dataset include regional mosaics of targeted observations directed at specific regions of interest. Four types of targeted observations are included: (a) WAC 3-color targeted observations acquired mainly during the primary mission, to complement 1 km/pixel 8-color mapping with a higher spatial resolution 3-color product; (b) WAC observations of targets that were observed repeatedly at different photometric geometries in order to improve photometric models of Mercury; these were observed initially in 8 color and since early 2013 in 11 colors; (c) WAC 8- or 11-color science targeted observations; and (d) NAC image strips acquired either for high-resolution imaging of morphology or as context for MASCS or MLA observations. The images in each observation share a common SITE_ID in the file name and PDS label. The SITE_ID corresponds to a targeting request entered into a database, in response to which a series of images was acquired. There is one SITE_ID for each time the region of interest is observed; thus for photometry targets, the same geographic region of interest is covered by many sets of images, each set sharing a common SITE_ID and distinct photometric geometry. Each mosaic is map projected in an orthographic projection, and contains one or more image planes. NAC mosaics contain 4 backplanes: observation ID, solar incidence angle, emission angle, and phase angle. WAC color products contain 3 backplanes: solar incidence angle, emission angle, and phase angle.

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 January 31, 2023
Metadata Updated Date December 6, 2023
Data Update Frequency irregular

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date January 31, 2023
Metadata Updated Date December 6, 2023
Publisher National Aeronautics and Space Administration
Identifier urn:nasa:pds:context_pds3:data_set:data_set.mess-h-mdis-5-rdr-rtm-v1.0_mgzb-5yhb
Data First Published 2018-06-26
Data Last Modified 2023-01-26
Category Earth Science
Public Access Level public
Data Update Frequency irregular
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
Schema Version
Catalog Describedby
Harvest Object Id ba3fdc91-9946-499b-9252-0ae710d96923
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Program Code 026:005
Related Documents
Source Datajson Identifier True
Source Hash 738a599c223c2b9c3aa3eb2a31643d725632f8440d08cff7e516e5e18b919f82
Source Schema Version 1.1

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