Artifact · 71 mentions · ACTIVE Program Codename

SIGN

Mention timeline 30 mentions across 43 docs · 41 undated

Peak 1948 · 10mentions

◆ Declassified · Associations 17 entities

Known associates

Co-occurring across the files — click a node to open its dossier

Cross-reference

Search SIGN across public archives

Reference

Official archives

UAP-specific

NUFORC

Documents · 43 docs Open in search →

31 JAN 1942 28933137 USAF · 7 mentions · 1 page p.2 — 28932520 USAF · 5 mentions · 4 pages p.24 — 28932484 USAF · 4 mentions · 4 pages p.24 — 28937074 USAF · 4 mentions · 4 pages p.39 — 28930193 USAF · 3 mentions · 2 pages p.6 — 28929478 USAF · 2 mentions · 1 page p.6 — 28929950 USAF · 2 mentions · 1 page p.5 04 MAR 1948 28930412 USAF · 2 mentions · 2 pages p.4 — 28931319 USAF · 2 mentions · 2 pages p.8 — 28931509 USAF · 2 mentions · 2 pages p.18 — 28931680 USAF · 2 mentions · 2 pages p.20 — 28935827 USAF · 2 mentions · 2 pages p.9 1949 342_HS1-416511228_319.1 Flying Discs 1949 DoD · 2 mentions · 2 pages p.107 01 MAR 1978 65_HS1-834228961_62-HQ-83894_Section_4 FBI · 2 mentions · 2 pages p.59 2026 CIA-UAP-019, Australian Dept of Defense Scientific and Intel Aspects of the UFO Problem CIA · 2 mentions · 1 page p.5 1948 18_6369445_General_1948_Vol_1 DoD · 1 mention · 1 page p.8 12 JUN 1947 28929116 USAF · 1 mention · 1 page p.5 24 JUN 1947 28929214 USAF · 1 mention · 1 page p.7 — 28929246 USAF · 1 mention · 1 page p.9 — 28929295 USAF · 1 mention · 1 page p.6 1945 28929373 USAF · 1 mention · 1 page p.14 — 28929393 USAF · 1 mention · 1 page p.45 — 28929453 USAF · 1 mention · 1 page p.8 — 28929530 USAF · 1 mention · 1 page p.7 — 28929760 USAF · 1 mention · 1 page p.22 30 DEC 1947 28930060 USAF · 1 mention · 1 page p.9 10 JAN 1948 28930089 USAF · 1 mention · 1 page p.6 — 28930402 USAF · 1 mention · 1 page p.4 08 MAR 1948 28930428 USAF · 1 mention · 1 page p.4 02 APR 1948 28930742 USAF · 1 mention · 1 page p.4 30 APR 1948 28930765 USAF · 1 mention · 1 page p.4 06 MAY 1948 28930789 USAF · 1 mention · 1 page p.4 — 28930922 USAF · 1 mention · 1 page p.22 23 JUL 1948 28931275 USAF · 1 mention · 1 page p.5 29 JUL 1948 28931285 USAF · 1 mention · 1 page p.5 30 JUL 1958 28931303 USAF · 1 mention · 1 page p.4 29 AUG 1943 28931443 USAF · 1 mention · 1 page p.5 — 28931552 USAF · 1 mention · 1 page p.26 — 28932455 USAF · 1 mention · 1 page p.11 — 28935772 USAF · 1 mention · 1 page p.14 — 28935805 USAF · 1 mention · 1 page p.8 — 28936299 USAF · 1 mention · 1 page p.12 01 FEB 2024 AARO Historical Record Report DoD · 1 mention · 1 page p.13