#109
CHOPTANK
● CRITICAL MMSI: 367147860
Detections
165
Score
0.95
Months
12
// QUANTUS MARITIME INTELLIGENCE // 2024 ANNUAL ASSESSMENT // RANK #109 OF 69,461 VESSELS //
Intelligence Overview
CHOPTANK · MMSI 367147860 · 🇺🇸 US · Primary Port: New York
PERIOD: JAN–DEC 2024
⚠ INTELLIGENCE ASSESSMENT: CHOPTANK ranks #109 of 69,461 monitored vessels with 165 anomalous detections across 12 months. Composite risk score: 0.9500 (CRITICAL). Active alert types: ZIGZAG, DARK_VESSEL.
Global Rank
#109
of 69,461 vessels
Composite Score
0.9500
CRITICAL
Total Detections
165
Months Active
12/12
Unique Ports
7
Dark Events
1
AIS blackout
Monthly Detection Volume
1
20
10
9
11
18
12
11
2
17
3
12
4
6
2024 MONTHLY DETECTIONS
Alert Type Distribution
ZIGZAG
92
DARK_VESSEL
1
Key Intelligence Findings
AIS Blackout Confirmed — 1 Event
Deliberate AIS transponder deactivation detected. Each event represents a period where CHOPTANK was operating outside electronic surveillance. Consistent with covert cargo transfer or evasion operations.
Evasion Navigation — 92 Zigzag Events
Erratic course-over-ground patterns up to 166.4° std deviation, far exceeding the 50° anomaly threshold. Pattern consistent with surveillance evasion maneuvers or anchor position AIS noise.
Port Detection Summary
🇺🇸
New York
56
avg 0.760
🇺🇸
Philadelphia
15
avg 0.684
🇺🇸
Boston
11
avg 0.669
🇺🇸
Norfolk
5
avg 0.707
🇺🇸
Portland ME
3
avg 0.629
🇺🇸
Jacksonville
2
avg 0.766
🇺🇸
Baltimore
1
avg 0.852
Monthly Alert Log — All Months
MonthDetectionsSeverityScoreNearest PortAlert Types
January 2024 20 HIGH 0.8081 New York ZIGZAG; DARK_VESSEL
February 2024 17 CRITICAL 0.9000 Portland ME ZIGZAG
March 2024 12 CRITICAL 0.9000 New York ZIGZAG
April 2024 6 HIGH 0.8369 Norfolk ZIGZAG
May 2024 18 CRITICAL 0.9000 Norfolk ZIGZAG
June 2024 13 CRITICAL 0.9000 New York ZIGZAG
July 2024 10 CRITICAL 0.9500 New York ZIGZAG; SPEED_ANOMALY
August 2024 13 CRITICAL 0.9000 New York ZIGZAG
September 2024 18 CRITICAL 0.9000 New York ZIGZAG
October 2024 9 CRITICAL 0.9000 Philadelphia ZIGZAG
November 2024 18 CRITICAL 0.9000 New York ZIGZAG
December 2024 11 CRITICAL 0.9000 Philadelphia ZIGZAG
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
IndicatorStatusEvidenceConfidence
AIS Blackout / Dark VesselCONFIRMED1 events detectedCRITICAL
GPS Spoofing / Position JumpNOT DETECTED—LOW
Velocity Fraud / Speed AnomalyNOT DETECTED—LOW
Evasion Navigation / ZigzagCONFIRMED92 events · max COG std 166.4°HIGH
Ship-to-Ship RendezvousNOT DETECTED—LOW
Multi-Port OperationsCONFIRMED7 unique portsHIGH
Operational Profile
Primary AO
New York and surrounding maritime zone
Active Period
12 months of continuous alert activity in 2024
Alert Density
165 detections across 93 individual events (avg 13.8/month)
Active Techniques
⟳ ZIGZAG ◐ DARK
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 166.4°). Consistent with surveillance evasion or at-anchor AIS manipulation. Count: 92 events.
HIGH CONFIDENCE
92 events
MAR-T004
AIS-MAN-001
AIS Blackout
Deliberate AIS transponder deactivation to create surveillance gaps. Count: 1 events. Each event represents an unmonitored operational window.
HIGH CONFIDENCE
1 events
Risk Analysis
Composite risk scoring · Weighted indicator model · Quantus v2.4
Composite Score
0.9500
CRITICAL
Avg Detection Score
0.8912
Global Rank
#109
of 69,461 vessels
Weighted Indicator Scoring
Formula: (Dark×3) + (Rendezvous×4) + (PosJump×2) + (Speed×1) + (Zigzag×0.5) + (MaxScore×50)
IndicatorCountWeightContribution
DARK_VESSEL1×33.0
RENDEZVOUS0×40.0
POSITION_JUMP0×20.0
SPEED_ANOMALY0×10.0
ZIGZAG92×0.546.0
MaxSingleScore0.9500×5047.5
COMPOSITE TOTALNormalized [0,1]0.9500 CRITICAL
⟳ Zigzag / Erratic Navigation
Indicator: RTE-ANO-005 · 92 events · Max COG std: 166.4°
EVASION PATTERN
Zigzag events are triggered when course-over-ground (COG) standard deviation exceeds 50°. CHOPTANK records COG deviations up to 166.4° — consistent with surveillance evasion maneuvers or at-anchor AIS noise manipulation.
Total Events
92
Max COG Std Dev
166.4°
Threshold
50°
Zigzag Events (Top 50 by COG deviation)
DateCOG Std Dev (°)ScoreSeverityPortCoordinates
◐ Dark Vessel Events
Indicator: AIS-MAN-001 · 1 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
1
Indicator
AIS-MAN-001
Risk Level
CRITICAL
◐ DARK EVENT #1 — 2024-01-06T07:49:29
AIS BLACKOUT
Location
41.2803°N, 71.6885°W — Boston
AIS Gap Duration
15.8 hours
Pre-Blackout Speed
6.1 knots SOG
Displacement
70.6 NM from port during gap
Score
0.7253 · MEDIUM
Assessment
AIS gap consistent with deliberate concealment.
Port History
7 distinct port areas · US primary flag state
Complete Port Detection Summary
PortCountryDetectionsAvg ScoreAvg Dist NMRisk
New York🇺🇸560.760316.1STANDARD
Philadelphia🇺🇸150.683619.0STANDARD
Boston🇺🇸110.668929.5STANDARD
Norfolk🇺🇸50.70738.1STANDARD
Portland ME🇺🇸30.62944.0STANDARD
Jacksonville🇺🇸20.76627.5STANDARD
Baltimore🇺🇸10.85163.2STANDARD
🇺🇸 New York — Port Profile
56 detections · Avg score 0.7603 · Avg distance 16.1 NM
LOW RISK
Total Detections
56
Primary port of operation
Avg Alert Score
0.7603
Avg Distance NM
16.1
Port proximity zone
Detection Types at New York
ZIGZAG
56
Coordinates: 40.661°N, 74.044°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
56 of 93 total detections (60.2%)
Avg Distance from Port
16.1 NM — consistent with port proximity operations
🇺🇸 Philadelphia — Port Profile
15 detections · Avg score 0.6836 · Avg distance 19.0 NM
LOW RISK
Total Detections
15
Secondary port
Avg Alert Score
0.6836
Avg Distance NM
19.0
Port proximity zone
Detection Types at Philadelphia
ZIGZAG
15
Coordinates: 39.952°N, 75.144°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
15 of 93 total detections (16.1%)
Avg Distance from Port
19.0 NM — consistent with port proximity operations
🇺🇸 Boston — Port Profile
11 detections · Avg score 0.6689 · Avg distance 29.5 NM
LOW RISK
Total Detections
11
Secondary port
Avg Alert Score
0.6689
Avg Distance NM
29.5
Port proximity zone
Detection Types at Boston
ZIGZAG
10
DARK_VESSEL
1
Coordinates: 42.358°N, 71.051°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
11 of 93 total detections (11.8%)
Avg Distance from Port
29.5 NM — consistent with port proximity operations
🇺🇸 Norfolk — Port Profile
5 detections · Avg score 0.7073 · Avg distance 8.1 NM
LOW RISK
Total Detections
5
Secondary port
Avg Alert Score
0.7073
Avg Distance NM
8.1
Port proximity zone
Detection Types at Norfolk
ZIGZAG
5
Coordinates: 36.847°N, 76.293°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
5 of 93 total detections (5.4%)
Avg Distance from Port
8.1 NM — consistent with port proximity operations
🇺🇸 Portland ME — Port Profile
3 detections · Avg score 0.6294 · Avg distance 4.0 NM
LOW RISK
Total Detections
3
Secondary port
Avg Alert Score
0.6294
Avg Distance NM
4.0
Port proximity zone
Detection Types at Portland ME
ZIGZAG
3
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
3 of 93 total detections (3.2%)
Avg Distance from Port
4.0 NM — consistent with port proximity operations
🇺🇸 Jacksonville — Port Profile
2 detections · Avg score 0.7662 · Avg distance 7.5 NM
LOW RISK
Total Detections
2
Secondary port
Avg Alert Score
0.7662
Avg Distance NM
7.5
Port proximity zone
Detection Types at Jacksonville
ZIGZAG
2
Coordinates: 30.332°N, 81.660°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
2 of 93 total detections (2.2%)
Avg Distance from Port
7.5 NM — consistent with port proximity operations
🇺🇸 Baltimore — Port Profile
1 detections · Avg score 0.8516 · Avg distance 3.2 NM
LOW RISK
Total Detections
1
Secondary port
Avg Alert Score
0.8516
Avg Distance NM
3.2
Port proximity zone
Detection Types at Baltimore
ZIGZAG
1
Coordinates: 39.290°N, 76.615°W
Port Intelligence Notes
Port Country
🇺🇸 US
Risk Classification
LOW — Standard port monitoring applies
Detection Share
1 of 93 total detections (1.1%)
Avg Distance from Port
3.2 NM — consistent with port proximity operations
Ownership Intelligence
MMSI registry · Flag state analysis · Beneficial ownership investigation
Vessel Name
CHOPTANK
MMSI
367147860
Flag State (MMSI-derived)
🇺🇸 US
MID Code
367 → 🇺🇸 US
Primary Port
New York
Detection Period
12 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
INCONSISTENT — year-round multi-port operations with 165 anomalous events are not consistent with pleasure craft use
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)