The Platforms Atlas · v1.1 · 2026-07-30 · vantage by body

The Platforms Atlas

Every spacecraft, lander, balloon, and rocket-borne instrument that astronomers and astrophysicists have published from. Stripes are vantage points, ordered ascending from the Sun. Each platform is a row; instruments place coloured ticks on a shared electromagnetic-spectrum spine, and four glyph columns flag in-situ measurement modalities (particles · fields · cosmic rays / ENAs · other). Operational platforms render solid; retired platforms render hatched.

228 published-platform rows · 17 vantage zones · “From Sputnik to today—the data is all on the same shelf.”

Modalities & lifecycle

PParticles — solar-wind ions, suprathermal & energetic particles
FFields — DC magnetometers, plasma-wave / radio receivers
CCR / ENA — cosmic rays, energetic neutral atoms, dust
OOther — gravity, seismology, sample analysis, occultation
Operational
Retired (any era)

How to read this atlas

Astronomy is done from somewhere. This atlas is a complete inventory of those somewheres — every space-borne, surface-bound, balloon-flown, and rocket-launched platform that astronomers have actually published refereed papers from, organized by where it sat and what it measured.

The atlas reads top-to-bottom by distance from the Sun. The first stripe is the solar vicinity (Helios, Parker Solar Probe). The last is interstellar space (Voyager 1/2 beyond the heliopause). In between are seventeen vantage points where instruments have been parked: Mercury, Venus, the Sun-Earth Lagrange points, Earth orbit, sub-orbital Earth (balloons + sounding rockets + airborne), the Moon, Mars, the asteroid belt, the giant planets, the Kuiper Belt, comet rendezvous, and the heliosheath.

Each platform is a horizontal row within its vantage stripe, ordered chronologically by launch year. Reading down a stripe is reading the natural-history of vantage astronomy at that location — from Mariner 4 to MAVEN at Mars, from Uhuru to JWST at the Earth-system frontier.

Each platform's row has two halves. On the left sit four glyph columns flagging the in-situ modalities the platform carries: P for particles, F for fields, C for cosmic rays / ENAs, O for other (gravity, seismology, sample handling). A glyph appears only if the platform actually carries an instrument in that modality. On the right sits the platform's electromagnetic coverage, drawn against the same log-frequency spine that runs across the top of the atlas. Every photon-collecting instrument is a coloured segment placed at its true spectral range. Wide segments are wide-band cameras; narrow segments are line-tracking spectrographs or single-window monitors.

Operational platforms render solid. Retired platforms render hatched. Whether they retired six months ago or sixty years ago, the data they produced is still in the literature — and that literature is the litmus this atlas applies. A platform appears here if and only if astronomers or astrophysicists have published refereed work from it. Sounding-rocket Aerobee flights that found Sco X-1, Vela GRB-discovery papers, Skylab ATM solar physics, Apollo ALSEP magnetometers, BLAST balloon dust maps — they all qualify.

Click any row for the full instrument list, vantage notes, and date range. The detail panel persists until you click another row, the close button, or anywhere outside. Some platforms (Voyager 1/2, New Horizons, Cassini) appear in multiple stripes — once per vantage where they produced distinct data. That's the Voyager 2 row appearing in Jupiter, Saturn, Uranus / Neptune, and Heliosheath: same spacecraft, different frontier each time.

Methodology

This is a curated catalog, not an authoritative one. Inclusion criteria, in order of priority:

  • Refereed publication test — was the platform's data used in a peer-reviewed astronomy / astrophysics / heliophysics / planetary-science paper? If yes, in. If the platform produced only engineering, navigation, communications, or pure Earth-observing data, out.
  • Vantage requirement — the platform must have observed from above the bulk of Earth's atmosphere. That includes orbital, sub-orbital cruise, lunar / planetary surface, balloon (BLAST, BOOMERanG, EBEX class), airborne (KAO, SOFIA), and sounding-rocket programs that produced cataloged refereed data. Ground-based observatories are out (those are the Main Atlas).
  • Body-of-orbit grouping — each platform sits in the stripe corresponding to where it produced its dominant data. Multi-encounter spacecraft (Voyager 1/2, Pioneer 10/11, Cassini, Galileo, New Horizons) appear once per stripe where they produced a distinct campaign of refereed papers.

Instrument bands are drawn at approximate nominal coverage — the goal is the at-a-glance density read, not radiometric precision. For radiometric ranges consult the cited mission references. Catalog entries flagged [verify] have at least one numeric ID (NORAD / COSPAR / Horizons) or operational status that needs cross-check against the live JPL Horizons / Celestrak feed.

The four in-situ glyph columns are deliberately binary: a platform either carries the modality or it doesn't. Subdividing further (DC magnetometer vs search-coil; thermal-ion vs suprathermal) would saturate the visual without proportionate science gain; the tooltip lists each instrument by name for the reader who needs the detail.

References & data sources

Master catalogs & ID services

Foundational platform papers (selected)

Lifecycle & status

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