#409 NAVIGATOR LIBRA // Vessel Intelligence System

Intelligence Overview

NAVIGATOR LIBRA · MMSI 636015188 · 🇱🇷 US · Primary Port: Galveston

PERIOD: JAN–DEC 2024

⚠ INTELLIGENCE ASSESSMENT: NAVIGATOR LIBRA ranks #409 of 69,461 monitored vessels with 44 anomalous detections across 10 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: DARK_VESSEL, ZIGZAG.

Global Rank

#409

of 69,461 vessels

Composite Score

0.9500

CRITICAL

Total Detections

44

Months Active

10/12

Unique Ports

5

Dark Events

4

AIS blackout

Monthly Detection Volume

10
3

11
2

12
4

3
2

4
7

2024 MONTHLY DETECTIONS

Alert Type Distribution

ZIGZAG

14

DARK_VESSEL

4

Key Intelligence Findings

AIS Blackout Confirmed — 4 Events

Deliberate AIS transponder deactivation detected. Each event represents a period where NAVIGATOR LIBRA was operating outside electronic surveillance. Consistent with covert cargo transfer or evasion operations.

Evasion Navigation — 14 Zigzag Events

Erratic course-over-ground patterns up to 128.1° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers.

Port Detection Summary

🇺🇸

Galveston

11

avg 0.683

🇺🇸

Houston

4

avg 0.776

🇵🇷

San Juan

1

avg 0.585

🇯🇲

Kingston

1

avg 0.950

🇺🇸

Brownsville

1

avg 0.699

Monthly Alert Log — All Months

Month	Detections	Severity	Score	Nearest Port	Alert Types
March 2024	2	CRITICAL	0.9500	San Juan	DARK_VESSEL
April 2024	7	HIGH	0.7584	Brownsville	DARK_VESSEL; ZIGZAG
May 2024	7	HIGH	0.7758	Galveston	ZIGZAG; DARK_VESSEL
June 2024	7	HIGH	0.8802	Galveston	ZIGZAG; DARK_VESSEL
July 2024	5	CRITICAL	0.9000	Galveston	ZIGZAG
August 2024	2	LOW	0.4556	Houston	ZIGZAG
September 2024	5	CRITICAL	0.9000	Galveston	ZIGZAG
October 2024	3	CRITICAL	0.9000	Galveston	ZIGZAG
November 2024	2	CRITICAL	0.9000	Galveston	ZIGZAG
December 2024	4	MEDIUM	0.7452	Houston	ZIGZAG; DARK_VESSEL

Activity Map

Detection events plotted · Color-coded by alert type · Drag to pan · Scroll to zoom

● Speed Anomaly ● Position Jump ● Zigzag ● Dark Vessel ● Rendezvous

Threat Intelligence

Analytical confidence: HIGH · Multi-indicator assessment

Threat Indicators Matrix

Indicator	Status	Evidence	Confidence
AIS Blackout / Dark Vessel	CONFIRMED	4 events detected	CRITICAL
GPS Spoofing / Position Jump	NOT DETECTED	—	LOW
Velocity Fraud / Speed Anomaly	NOT DETECTED	—	LOW
Evasion Navigation / Zigzag	CONFIRMED	14 events · max COG std 128.1°	HIGH
Ship-to-Ship Rendezvous	NOT DETECTED	—	LOW
Multi-Port Operations	CONFIRMED	5 unique ports	HIGH
High-Risk Port Proximity: Kingston	CONFIRMED	1 detections	HIGH

Operational Profile

Primary AO

Galveston and surrounding maritime zone

Active Period

10 months of continuous alert activity in 2024

Alert Density

44 detections across 18 individual events (avg 4.4/month)

Active Techniques

◐ DARK ⟳ ZIGZAG

Threat Category

AIS Anomaly — Single or dual technique pattern

TTP Analysis

Tactics, Techniques & Procedures — Maritime ATT&CK Framework

MAR-T003

RTE-ANO-005

Evasion Navigation

Erratic COG changes exceeding 50° threshold (max 128.1°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 14 events.

HIGH CONFIDENCE
14 events

MAR-T004

AIS-MAN-001

AIS Blackout

Deliberate AIS transponder deactivation to create surveillance gaps. Count: 4 events. Each event represents an unmonitored operational window.

HIGH CONFIDENCE
4 events

Risk Analysis

Composite risk scoring · Weighted indicator model · Quantus v2.4

Composite Score

0.9500

CRITICAL

Avg Detection Score

0.8165

Global Rank

#409

of 69,461 vessels

Weighted Indicator Scoring

Formula: (Dark×3) + (Rendezvous×4) + (PosJump×2) + (Speed×1) + (Zigzag×0.5) + (MaxScore×50)

Indicator	Count	Weight	Contribution
DARK_VESSEL	4	×3	12.0
RENDEZVOUS	0	×4	0.0
POSITION_JUMP	0	×2	0.0
SPEED_ANOMALY	0	×1	0.0
ZIGZAG	14	×0.5	7.0
MaxSingleScore	0.9500	×50	47.5
COMPOSITE TOTAL	Normalized [0,1]		0.9500 CRITICAL

⟳ Zigzag / Erratic Navigation

Indicator: RTE-ANO-005 · 14 events · Max COG std: 128.1°

EVASION PATTERN

Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. NAVIGATOR LIBRA records COG deviations up to 128.1° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.

Total Events

14

Max COG Std Dev

128.1°

Threshold

50°

Zigzag Events (Top 50 by COG deviation)

Date	COG Std Dev (°)	Score	Severity	Port	Coordinates

◐ Dark Vessel Events

Indicator: AIS-MAN-001 · 4 AIS blackout events detected

AIS BLACKOUT

⚠ HIGH SIGNIFICANCE: Dark vessel events represent deliberate AIS transponder deactivation — a primary indicator of intentional surveillance evasion, covert cargo transfer, or sanctions circumvention.

Dark Vessel Events

4

Indicator

AIS-MAN-001

Risk Level

CRITICAL

◐ DARK EVENT #1 — 2024-03-27T12:46:08

AIS BLACKOUT

Location

22.5579°N, 70.9505°W — San Juan

AIS Gap Duration

6.1 hours

Pre-Blackout Speed

14.1 knots SOG

Displacement

366.8 NM from port during gap

Score

0.5853 · LOW

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #2 — 2024-03-28T04:15:12

AIS BLACKOUT

Location

21.6524°N, 74.8317°W — Kingston

AIS Gap Duration

19.5 hours

Pre-Blackout Speed

14.6 knots SOG

Displacement

247.2 NM from port during gap

Score

0.9500 · HIGH

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #3 — 2024-04-02T11:31:46

AIS BLACKOUT

Location

24.7355°N, 95.7028°W — Brownsville

AIS Gap Duration

9.7 hours

Pre-Blackout Speed

13.8 knots SOG

Displacement

123.3 NM from port during gap

Score

0.6994 · HIGH

Assessment

AIS gap consistent with deliberate concealment.

◐ DARK EVENT #4 — 2024-12-18T11:47:13

AIS BLACKOUT

Location

26.9082°N, 94.4127°W — Galveston

AIS Gap Duration

7.5 hours

Pre-Blackout Speed

11.3 knots SOG

Displacement

145.1 NM from port during gap

Score

0.6058 · LOW

Assessment

AIS gap consistent with deliberate concealment.

Port History

5 distinct port areas · US primary flag state

Complete Port Detection Summary

Port	Country	Detections	Avg Score	Avg Dist NM	Risk
Galveston	🇺🇸	11	0.6831	34.4	STANDARD
Houston	🇺🇸	4	0.7756	14.2	STANDARD
San Juan	🇵🇷	1	0.5853	366.8	STANDARD
Kingston	🇯🇲	1	0.9500	247.2	MEDIUM
Brownsville	🇺🇸	1	0.6994	123.3	STANDARD

🇺🇸 Galveston — Port Profile

11 detections · Avg score 0.6831 · Avg distance 34.4 NM

LOW RISK

Total Detections

11

Primary port of operation

Avg Alert Score

0.6831

Avg Distance NM

34.4

Port proximity zone

Detection Types at Galveston

ZIGZAG

10

DARK_VESSEL

1

Coordinates: 29.301°N, 94.798°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

11 of 18 total detections (61.1%)

Avg Distance from Port

34.4 NM — consistent with port proximity operations

🇺🇸 Houston — Port Profile

4 detections · Avg score 0.7756 · Avg distance 14.2 NM

LOW RISK

Total Detections

4

Secondary port

Avg Alert Score

0.7756

Avg Distance NM

14.2

Port proximity zone

Detection Types at Houston

ZIGZAG

4

Coordinates: 29.749°N, 95.362°W

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

4 of 18 total detections (22.2%)

Avg Distance from Port

14.2 NM — consistent with port proximity operations

🇵🇷 San Juan — Port Profile

1 detections · Avg score 0.5853 · Avg distance 366.8 NM

LOW RISK

Total Detections

1

Secondary port

Avg Alert Score

0.5853

Avg Distance NM

366.8

Possible spoofed coords

Detection Types at San Juan

DARK_VESSEL

1

Coordinates: 18.465°N, 66.115°W

Port Intelligence Notes

Port Country

🇵🇷 PR

Risk Classification

LOW — Standard port monitoring applies

Detection Share

1 of 18 total detections (5.6%)

Avg Distance from Port

366.8 NM — anomalously high, suggests spoofed coordinates

🇯🇲 Kingston — Port Profile

1 detections · Avg score 0.9500 · Avg distance 247.2 NM

MEDIUM RISK

⚡ MEDIUM RISK PORT: Kingston warrants monitoring. Cross-reference with regional enforcement intelligence.

Total Detections

1

Secondary port

Avg Alert Score

0.9500

Avg Distance NM

247.2

Possible spoofed coords

Detection Types at Kingston

DARK_VESSEL

1

Coordinates: 17.994°N, 76.794°W

Port Intelligence Notes

Port Country

🇯🇲 JM

Risk Classification

MEDIUM — MEDIUM

Detection Share

1 of 18 total detections (5.6%)

Avg Distance from Port

247.2 NM — anomalously high, suggests spoofed coordinates

🇺🇸 Brownsville — Port Profile

1 detections · Avg score 0.6994 · Avg distance 123.3 NM

LOW RISK

Total Detections

1

Secondary port

Avg Alert Score

0.6994

Avg Distance NM

123.3

Port proximity zone

Detection Types at Brownsville

DARK_VESSEL

1

Port Intelligence Notes

Port Country

🇺🇸 US

Risk Classification

LOW — Standard port monitoring applies

Detection Share

1 of 18 total detections (5.6%)

Avg Distance from Port

123.3 NM — consistent with port proximity operations

Ownership Intelligence

MMSI registry · Flag state analysis · Beneficial ownership investigation

Vessel Name

NAVIGATOR LIBRA

MMSI

636015188

Flag State (MMSI-derived)

🇱🇷 US

MID Code

636 → 🇱🇷 US

Primary Port

Galveston

Detection Period

10 months (2024)

Registered Owner

Pending registry lookup

Beneficial Owner

Requires FinCEN CDD query

OFAC SDN Status

Pending cross-reference

Recommended Action

Physical inspection + full registry query

Vessel Type Analysis

AIS declared type · Physical capability vs. observed behavior

Type Mismatch Assessment

AIS Declared Type

vessel_type=37 (Pleasure Craft)

Behavior Consistency

Requires investigation

Speed Capability

Within or near physical limits for vessel type

Inspection Priority

HIGH — Recommend USCG/CBSA physical boarding and documentation review

Applicable Statutes

47 C.F.R. § 80.953 (AIS falsification) · 33 C.F.R. § 164.46 (AIS carriage) · 21 U.S.C. § 955 (maritime drug law)