Launch or test range

SEA RANGE OTC

Recorded as: SEA RANGE OTC

The name suggests a launch or test range; seahazards has not verified who this issuer is. What follows is what the messages recorded under this name show.

Launch and test ranges announce the sea areas that may be dangerous during a rocket launch, a missile test or the recovery of spent stages: where parts may fall, and in which time windows. Their warnings are among the most precisely defined in the archive — polygons with start and end times that cancel themselves when the last window closes.

What the archive holds

1,034 messages in this archive record SEA RANGE OTC as their authority, issued from 2011-02-24 to 2024-05-10. None of them is in force in the latest lists we collected.

Exercises accounts for 683 of 1,034 recorded messages (66%), the largest warning type group in this selection.

All of those that can be attributed to a NAVAREA belong to NAVAREA XII.

Located messages lie in 1 sea area, most often North Pacific Ocean.

The largest yearly count is 2021, with 162 messages. Collection is incomplete between 2024-05 and 2026-08-17, so those years are not comparable.

Across all years its messages are issued most often in August and least often in December.

They reached this archive through NAVAREA XII (1,025) and HYDROPAC (9).

Messages by year of issue

'11

'12

'13

'14

'15

'16

'17

'18

'19

'20

'21

'22

'23

'24

By month of issue, all years

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Warning types

Where

NAVAREA XII 1,025

North Pacific Ocean 830

Most recently issued

Earliest in the archive

NAVAREA XII 63/11 · Missiles · North Pacific Ocean2011-02-24
Hazardous operations 011600Z to 020130Z and 021600Z to 030130Z mar in areas: a. bound by 32-27N 117-34W,…

Other launch or test ranges in NAVAREA XII

Counts are messages recording this issuer as their authority, recounted 2026-09-24; see coverage for what is collected. Not for navigation.