# Mauth 1980: Alert 747

> G. H. (Sandia National Laboratories) Mauth, 1980. 2 records on Mysteries Department cite it. The bhangmeter designers' laboratory view.

Source: https://mysteriesdept.com/sources/SRC0CW4WJR805GV/alert-747  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Sources](https://mysteriesdept.com/sources)[1979 Vela incident](https://mysteriesdept.com/mysteries/vela-incident)Mauth 1980

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# Alert 747

G. H. (Sandia National Laboratories) Mauth, 1980. _National Security Archive Electronic Briefing Book 190, Document 8_.

Sandia report of 1 May 1980 noting that only Vela 6911, of all bhangmeter-equipped satellites, saw the double flash; disputes from laser calibration tests that the bhangmeter difference was a malfunction, yet concludes the signal was "fully consistent" with a low-yield atmospheric detonation.

**1979 Vela incident** ReportChecked against the original0

## What it's used for here

The bhangmeter designers' laboratory view.

## The document 70 pages

[Pages]Page 1 of 70

[![Page 1](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p1)1][![Page 2](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p2)2][![Page 3](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p3)3][![Page 4](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p4)4][![Page 5](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p5)5][![Page 6](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p6)6][![Page 7](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p7)7][![Page 8](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p8)8][![Page 9](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p9)9][![Page 10](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p10)10][![Page 11](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p11)11][![Page 12](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p12)12]

![Page 1 of Alert 747](https://mysteriesdept.com/files/v/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389/p1)

The first 12 pages are shown; the rest are in the file. Pages from the file we keep.

## Cited by on this site 2 records

[Los Alamos and Sandia analysts judged the signal consistent with a low-yield atmospheric burst.](https://mysteriesdept.com/mysteries/vela-incident/evidence/EVD0CW4WZY47GE3/los-alamos-and-sandia-analysts-judged-the-signal-consistent)

Evidence

EVD

[The 1979 Vela incident](https://mysteriesdept.com/mysteries/vela-incident)

The mystery article

MYS

## Cite it

```
Mauth, G. H. (. N. L. (1980). Alert 747. National Security Archive Electronic Briefing Book 190, Document 8. https://nsarchive2.gwu.edu/NSAEBB/NSAEBB190/08.pdf
```

[Read it free at nsarchive2.gwu.edu](https://nsarchive2.gwu.edu/NSAEBB/NSAEBB190/08.pdf)[Download PDF · 2.4 MB](https://mysteriesdept.com/files/d/e6442c27e8991bb4bd9537f9016331e2ec5b8b076ffe93116ba33d238f3ac389)

Anyone can read it here; members can download it.

Key

**SRC** 0CW4WJR805GV

Kind

Report

Rights

public-domain

Kept

27 Oct 2026

Checked

Against the published original

Added by

[apollo](https://mysteriesdept.com/u/apollo)

The record

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[CSL-JSON](https://mysteriesdept.com/sources/SRC0CW4WJR805GV/alert-747/csl.json)