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MetaSat: Metadata for Small Satellite Missions

Chivvis, Daniel

Abstract

Poster presented at the Access 2 Space Workshop: Increased Science Return through Rideshare. Johns Hopkins Applied Physics Laboratory, Laurel, MD. February 25-27, 2020.

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Change Color Theme: This template is designed to use the built-in color themes in the newer versions of PowerPoint. To change the color theme, select the Design tab, then select the Colors drop-down list. The default color theme for this template is “Office”, so you can always return to that after trying some of the alternatives. Printing Your Poster: Once your poster file is ready, visit www.genigraphics.com to order a high-quality, affordable poster print. Every order receives a free design review and we can deliver as fast as next business day within the US and Canada. Genigraphics® has been producing output from PowerPoint® longer than anyone in the industry; dating back to when we helped Microsoft® design the PowerPoint® software. US and Canada: 1-800-790-4001 Email: [email protected] [This sidebar area does not print.] Poster Print Size: This poster template is 44” high by 44” wide. It can be used to print any poster with a 1:1 aspect ratio. Replace the QR Code with a link to your complete research paper. We prefer: https://www.qrstuff.com (Genigraphics has no relationship) Always check the specific poster requirements with your conference organizer to confirm if this type of poster design is allowed. Multiple Layouts: Use the Layout dropdown to choose between one, two, or three content sections. Image Quality: You can place digital photos or logo art in your poster file by selecting the Insert, Picture command, or by using standard copy & paste. For best results, all graphic elements should be at least 150-200 pixels per inch in their final printed size. For instance, a 1600 x 1200 pixel photo will usually look fine up to 8“-10” wide on your printed poster. To preview the print quality of images, select a magnification of 100% when previewing your poster. This will give you a good idea of what it will look like in print. [This sidebar area does not print.] Space mission metadata is not standardized and various mission outputs are typically disconnected. This situation makes it hard for different teams to share information, collaborate, or advise each other on best practices and lessons learned. The MetaSat team is addressing these issues by creating a metadata vocabulary and example JSON-LD schemas that can be used to describe small satellite missions. This work will help facilitate the ease of sharing information between missions and lower the barrier of entry into the field. MetaSat will be piloted by the Libre Space Foundation on their platform SatNOGS and incorporated into systems maintained by NASA’s Small Spacecraft Virtual Institute (S3VI). Shoot us an email: metasa[email protected] Visit our website: https://schema.space Review JSON-LD examples: https://gitlab.com/metasat MetaSat JSON-LD Example { "@context": { "type": "@type", "id": "@id", "none": "@none", "language": "@language", "direction": "@direction", "json": "@json", "@vocab": "https://schema.space/metasat/", "rdf": "http://www.w3.org/1999/02/22-rdf-syntax-ns#", "rdfs": "http://www.w3.org/2000/01/rdf-schema#", "schema": "http://schema.org/", "wdp": "https://www.wikidata.org/wiki/Property:", "xhv": "http://www.w3.org/1999/xhtml/vocab#", "xsd": "http://www.w3.org/2001/XMLSchema#", "license": { "@id" : "xhv:license", "@type": "@id" }, "label": "rdfs:label", "comment": "rdfs:comment", "isDefinedBy": { "@id" : "rdfs:isDefinedBy", "@type" : "@id" }, "seeAlso": { "@id" : "rdfs:seeAlso", "@type" : "@id" }, "HTML": "rdf:HTML", "JSON": "rdf:JSON" }, "orbitalDetermination": { "orbitalElements": { "regime": "", "epoch": { "schema:value": "", "schema:unitCode": "" }, "radiusOfPeriapsis": { "schema:value": "", "schema:unitCode": "" }, "radiusOfApoapsis": { "schema:value": "", "schema:unitCode": "" }, "eccentricAnomaly": { "schema:value": "", "schema:unitCode": "" }, "meanAnomaly": { "schema:value": "", "schema:unitCode": "" } } } … MetaSat: Metadata for Small Satellite Missions Open, collaboratively-developed metadata to support the future of space exploration. Building Crosswalks Building metadata crosswalks makes different ways of talking about space missions translatable. Crosswalking to the MetaSat vocabulary makes it clear which standard is being used and in what context. MetaSat Element Wikidata Property Wikidata ID semiMajorAxis major semiaxis P2233 radiusOfPeriapsis periapsis P2244 radiusOfApoapsis apoapsis P2243 MetaSat aims to improve interoperability and access to mission outputs by removing ambiguity and providing the digital infrastructure necessary for crosswalking mission-related metadata and standards. Since MetaSat does not include mission data itself, but rather, data about mission data, schemas that adopt its vocabulary remain highly flexible regardless of their specific use case. Daniel Chivvis, Center for Astrophysics | Harvard & Smithsonian daniel.chiv[email protected]ard.edu Funding for MetaSat has been provided by the Alfred P. Sloan Foundation