EXPLORER 39 (ADI-3)

1968-066ANORAD 3337United States (US)Ops: D

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What this satellite page answers

Catalog identity

EXPLORER 39 (ADI-3) is the catalog object for NORAD 3337. International designator 1968-066A. Catalog identity: payload.

Owner and launch

Owner code resolves to United States (US). No linked launch record is currently resolved.

Orbit snapshot

219 km perigee to 278 km apogee. 80.54 degree inclination. 89.48 minute period.

Catalog

OwnerUnited States (US)

Object typePAY

Launch siteAFWTR

Launch designator1968-066

Period89.48 min

Inclination80.54°

Altitude219 km → 278 km

RCS10.371 m²

SATCAT updated2026-01-31T08:15:01.522+00:00

Orbit (latest)

No orbit elements found yet.

Source and freshness notes

This page is built from satellite catalog metadata, owner codes, launch designators, and the latest orbit element record available in T-Minus Zero ingestion. Source use does not imply endorsement by data providers.

SATCAT updatedJan 31, 2026, 8:15 AM UTC

Orbit epochNot published

Last source checkJan 31, 2026, 8:15 AM UTC

Orbit interpretation

Use the orbit fields as a current orbital snapshot, not a mission guarantee. Perigee, apogee, period, inclination, and mean motion help distinguish low-orbit payloads, rocket bodies, debris, and higher-altitude catalog objects.

Altitude band219 km perigee to 278 km apogee.

Period89.48 min

Object statusOps code D

Satellite relationship map

This satellite record owns the NORAD-specific facts. Owner pages group related catalog objects, launch pages own mission context, and the satellite index helps search across the catalog.

Owner profile

United States (US) satellite records and launch associations.

Satellite catalogBrowse NORAD records, owner hubs, and launch-linked objects.