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Iridium

completedLaunch 1997-030
Launched 6/18/1997LEOService GSat LEO OO 1
Admin Edit
Payloads
Assets deployed on this mission, enriched from spacecraft records.
7 payloads
Iridium 10
retired
Communications
LEO
Iridium
Iridium 11
retired
CommunicationsLEOIridium
Iridium 12
retired
CommunicationsLEOIridium
Iridium 13
retired
CommunicationsLEOIridium
Iridium 14
retired
CommunicationsLEOIridium
Iridium 16
retired
CommunicationsLEOIridium
Iridium 9
retired
CommunicationsLEOIridium
Launch Details
Launch Date
6/18/1997
Launch ID
1997-030
Launch Profile
Sat LEO OO 1
Service Type
G
Customer Type
C
Orbit
LEO
Launch Stack
Operator
Khrunichev State Research and Production Center
Launch Vehicle
Proton-K
Launch Site
PU23, Ploshchadka 81L, GIK-5, Baykonur, Kazakstan
Payload Summary
Payload Count
7
Constellations
1
Payload Status
retired 7
Payload Mission Types
Communications 7
Track
Mentions
748
All verified mentions of this mission in source documents.

Iridium's PNT system provides sub-100-nanosecond accuracy and is secured through cryptographic methods.

CapabilityGeneralValue 4.2Oct 22, 2025Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program

Iridium's L-band signals are roughly 1,000 times stronger than standard GPS signals and can operate reliably indoors without external antennas or weather interference.

CapabilityGeneralValue 4.0Oct 22, 2025Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program

T-Mobile will conduct controlled testing at its dedicated range to validate Iridium's system under real-world network scenarios.

PlanRelationshipsCapabilityValue 4.0Oct 22, 2025Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program

Iridium's advanced timing synchronization solution complements existing GPS systems to deliver uninterrupted service during GNSS disruptions.

CapabilityGeneralValue 3.0Oct 22, 2025Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program

Iridium will activate PNT services across a series of live network sites throughout the United States in partnership with T-Mobile.

RelationshipsPlanValue 4.0Oct 22, 2025Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program

By incorporating Iridium PNT, T-Mobile aims to strengthen network performance, mitigate timing vulnerabilities, and enhance user experience with improved reliability.

CapabilityGeneralValue 2.5Oct 22, 2025Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program

Iridium will install PNT receivers at 90 additional T-Mobile 5G network locations across diverse U.S. regions.

PlanCapabilityGrowthRelationshipsValue 4.0Oct 22, 2025

Iridium PNT signals are 1,000 times stronger than GNSS systems like GPS and operate indoors without requiring an outdoor antenna.

CapabilityGeneralValue 4.0Oct 21, 2025Iridium awarded U.S. DoT contract for complementary PNT services deployment + testing

Through the contract with the U.S. Department of Transportation, T-Mobile will expand its installation of Iridium PNT receivers to 90 additional live 5G network sites.

RelationshipsPlanCapabilityValue 4.6Oct 21, 2025Iridium awarded U.S. DoT contract for complementary PNT services deployment + testing

T-Mobile will perform nominal and adverse user equipment exercises at its testing range for Iridium PNT services.

PlanCapabilityValue 3.5Oct 21, 2025Iridium awarded U.S. DoT contract for complementary PNT services deployment + testing

Iridium PNT signals provide sub-100-nanosecond accuracy and are secured using cryptographic techniques.

CapabilityValue 4.3Oct 21, 2025Iridium awarded U.S. DoT contract for complementary PNT services deployment + testing

Iridium Communications Inc. has been selected by the U.S. Department of Transportation for an award through the CPNT Action Plan Rapid Phase Award II to support a broad network deployment of Iridium PNT services.

RelationshipsLegalPlanValue 4.0Oct 21, 2025Iridium awarded U.S. DoT contract for complementary PNT services deployment + testing

The DoT has issued five awards in total to Iridium, the National Association of Broadcasters, UrsaNav, Viavi Solutions, and MerlinTPS Corp.

RelationshipsGeneralValue 3.5Oct 21, 2025Latest News

Iridium’s PNT service aims to help protect against GPS disruptions that can cause downtime and compromise data integrity and performance of 5G networks.

CapabilityGeneralValue 3.5Oct 21, 2025Latest News

Iridium's contract with the U.S. Department of Transportation is valued at approximately $1.5 million.

RelationshipsFinancialValue 4.5Oct 21, 2025Latest News

The U.S. Department of Transportation has awarded Iridium a contract for its Complementary Positioning, Navigation, and Timing (CPNT) Action Plan Rapid Phase Award II.

RelationshipsValue 4.6Oct 21, 2025Latest News

T-Mobile will deploy Iridium PNT services across 90 additional live 5G network sites in the U.S.

RelationshipsPlanCapabilityValue 4.0Oct 21, 2025Latest News

Iridium has an alternative PNT solution that transmits PNT signals from its Low-Earth Orbit satellite network.

CapabilityValue 4.0Oct 21, 2025Latest News

Iridium's alternative PNT solution has signals that are 1,000 times stronger than the GPS system.

CapabilityValue 4.0Oct 21, 2025Latest News

Iridium is collaborating with T-Mobile to launch live-site activations across the United States for 5G network complementary timing synchronization.

RelationshipsCapabilityPlanValue 4.0Oct 21, 2025Iridium awarded U.S. DoT contract for complementary PNT services deployment + testing
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Iridium and T-Mobile expand PNT deployment under U.S. DOT resilience program