#irnss — Public Fediverse posts

#DirectionsMag:
"
One of India’s four navigation satellites has gone out of service, creating a fresh problem for the NavIC network. ISRO said the satellite IRNSS-1F was effectively lost for core use after its onboard atomic clock failed, a reminder that in satellite navigation, one component can matter as much as the whole spacecraft.
"

https://www.directionsmag.com/articles/irnss-1f-satellite-fails

1.5.2026

#GNSS #India #Indien #IRNSS #IRNSS1F #NavIC #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#DirectionsMag:
"
One of India’s four navigation satellites has gone out of service, creating a fresh problem for the NavIC network. ISRO said the satellite IRNSS-1F was effectively lost for core use after its onboard atomic clock failed, a reminder that in satellite navigation, one component can matter as much as the whole spacecraft.
"

https://www.directionsmag.com/articles/irnss-1f-satellite-fails

1.5.2026

#GNSS #India #Indien #IRNSS #IRNSS1F #NavIC #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#DirectionsMag:
"
One of India’s four navigation satellites has gone out of service, creating a fresh problem for the NavIC network. ISRO said the satellite IRNSS-1F was effectively lost for core use after its onboard atomic clock failed, a reminder that in satellite navigation, one component can matter as much as the whole spacecraft.
"

https://www.directionsmag.com/articles/irnss-1f-satellite-fails

1.5.2026

#GNSS #India #Indien #IRNSS #IRNSS1F #NavIC #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#DirectionsMag:
"
One of India’s four navigation satellites has gone out of service, creating a fresh problem for the NavIC network. ISRO said the satellite IRNSS-1F was effectively lost for core use after its onboard atomic clock failed, a reminder that in satellite navigation, one component can matter as much as the whole spacecraft.
"

https://www.directionsmag.com/articles/irnss-1f-satellite-fails

1.5.2026

#GNSS #India #Indien #IRNSS #IRNSS1F #NavIC #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#DirectionsMag:
"
One of India’s four navigation satellites has gone out of service, creating a fresh problem for the NavIC network. ISRO said the satellite IRNSS-1F was effectively lost for core use after its onboard atomic clock failed, a reminder that in satellite navigation, one component can matter as much as the whole spacecraft.
"

https://www.directionsmag.com/articles/irnss-1f-satellite-fails

1.5.2026

#GNSS #India #Indien #IRNSS #IRNSS1F #NavIC #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#ZeeNews:
"
One loose connection: The glitch that silenced ISRO's NVS-02 satellite
"
"ISRO officially revealed the cause behind the NVS-02 satellite failure. Discover how a tiny "pyro valve" glitch and a loose electrical contact derailed the 2,250kg navigation satellite in 2025."

https://zeenews.india.com/india/nvs-02-satellite-failure-reason-pyro-valve-glitch-analysis-3021347.html

26.2.2026

.. connector glitch ..
.. connectors not connected ..

#GNSS #Indien #IRNSS #ISRO #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#ZeeNews:
"
One loose connection: The glitch that silenced ISRO's NVS-02 satellite
"
"ISRO officially revealed the cause behind the NVS-02 satellite failure. Discover how a tiny "pyro valve" glitch and a loose electrical contact derailed the 2,250kg navigation satellite in 2025."

https://zeenews.india.com/india/nvs-02-satellite-failure-reason-pyro-valve-glitch-analysis-3021347.html

26.2.2026

.. connector glitch ..
.. connectors not connected ..

#GNSS #Indien #IRNSS #ISRO #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#ZeeNews:
"
One loose connection: The glitch that silenced ISRO's NVS-02 satellite
"
"ISRO officially revealed the cause behind the NVS-02 satellite failure. Discover how a tiny "pyro valve" glitch and a loose electrical contact derailed the 2,250kg navigation satellite in 2025."

https://zeenews.india.com/india/nvs-02-satellite-failure-reason-pyro-valve-glitch-analysis-3021347.html

26.2.2026

.. connector glitch ..
.. connectors not connected ..

#GNSS #Indien #IRNSS #ISRO #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#ZeeNews:
"
One loose connection: The glitch that silenced ISRO's NVS-02 satellite
"
"ISRO officially revealed the cause behind the NVS-02 satellite failure. Discover how a tiny "pyro valve" glitch and a loose electrical contact derailed the 2,250kg navigation satellite in 2025."

https://zeenews.india.com/india/nvs-02-satellite-failure-reason-pyro-valve-glitch-analysis-3021347.html

26.2.2026

.. connector glitch ..
.. connectors not connected ..

#GNSS #Indien #IRNSS #ISRO #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#ZeeNews:
"
One loose connection: The glitch that silenced ISRO's NVS-02 satellite
"
"ISRO officially revealed the cause behind the NVS-02 satellite failure. Discover how a tiny "pyro valve" glitch and a loose electrical contact derailed the 2,250kg navigation satellite in 2025."

https://zeenews.india.com/india/nvs-02-satellite-failure-reason-pyro-valve-glitch-analysis-3021347.html

26.2.2026

.. connector glitch ..
.. connectors not connected ..

#GNSS #Indien #IRNSS #ISRO #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

NavIC Down: ISRO’s navigation system hits a critical low as 8th satellite fails. https://english.mathrubhumi.com/technology/science/isro-navic-fails-atomic-clock-irnss-1f-satellite-constellation-down-rloexvtr?utm_source=dlvr.it&utm_medium=mastodon #ISRO #SpaceNews #NavIC #IRNSS #TechnologyIndia

NavIC Down: ISRO’s navigation system hits a critical low as 8th satellite fails. https://english.mathrubhumi.com/technology/science/isro-navic-fails-atomic-clock-irnss-1f-satellite-constellation-down-rloexvtr?utm_source=dlvr.it&utm_medium=mastodon #ISRO #SpaceNews #NavIC #IRNSS #TechnologyIndia

NavIC Down: ISRO’s navigation system hits a critical low as 8th satellite fails. https://english.mathrubhumi.com/technology/science/isro-navic-fails-atomic-clock-irnss-1f-satellite-constellation-down-rloexvtr?utm_source=dlvr.it&utm_medium=mastodon #ISRO #SpaceNews #NavIC #IRNSS #TechnologyIndia

NavIC Down: ISRO’s navigation system hits a critical low as 8th satellite fails. https://english.mathrubhumi.com/technology/science/isro-navic-fails-atomic-clock-irnss-1f-satellite-constellation-down-rloexvtr?utm_source=dlvr.it&utm_medium=mastodon #ISRO #SpaceNews #NavIC #IRNSS #TechnologyIndia

#ISRO:
"
NVS-02 ..Observations and Apex Committee Recommendations
"
".. orbit raising operations .. could not be carried out."

".. drive signal not reaching the pyro valve of the oxidizer line of the engine meant for orbit raising .. most likely cause .. is the disengagement of atleast one contacts (in each of the main and redundant paths) of the connector."

https://www.isro.gov.in/NVS-02-Spacecraft-On-Orbit-Observations.html

25.2.2026

#GNSS #Indien #IRNSS #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#ISRO:
"
NVS-02 ..Observations and Apex Committee Recommendations
"
".. orbit raising operations .. could not be carried out."

".. drive signal not reaching the pyro valve of the oxidizer line of the engine meant for orbit raising .. most likely cause .. is the disengagement of atleast one contacts (in each of the main and redundant paths) of the connector."

https://www.isro.gov.in/NVS-02-Spacecraft-On-Orbit-Observations.html

25.2.2026

#GNSS #Indien #IRNSS #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#ISRO:
"
NVS-02 ..Observations and Apex Committee Recommendations
"
".. orbit raising operations .. could not be carried out."

".. drive signal not reaching the pyro valve of the oxidizer line of the engine meant for orbit raising .. most likely cause .. is the disengagement of atleast one contacts (in each of the main and redundant paths) of the connector."

https://www.isro.gov.in/NVS-02-Spacecraft-On-Orbit-Observations.html

25.2.2026

#GNSS #Indien #IRNSS #NavIC #NavSat #NVS02 #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#TheHindu:
"
Failure of atomic clock cripples ISRO’s NavIC system
"
"The last atomic clock aboard the Indian Space Research Organisation’s (ISRO) Indian Regional Navigation Satellite System (IRNSS)-1F satellite has failed, .."
".. imported by ISRO from SpectraTime, a Switzerland-based maker .."

https://www.thehindu.com/sci-tech/isro-navic-system-atomic-clock-failure/article70743233.ece

14.3.2026

#GNSS #Indien #IRNSS #IRNSS1F #ISRO #NavIC #NavSat #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#TheHindu:
"
Failure of atomic clock cripples ISRO’s NavIC system
"
"The last atomic clock aboard the Indian Space Research Organisation’s (ISRO) Indian Regional Navigation Satellite System (IRNSS)-1F satellite has failed, .."
".. imported by ISRO from SpectraTime, a Switzerland-based maker .."

https://www.thehindu.com/sci-tech/isro-navic-system-atomic-clock-failure/article70743233.ece

14.3.2026

#GNSS #Indien #IRNSS #IRNSS1F #ISRO #NavIC #NavSat #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#TheHindu:
"
Failure of atomic clock cripples ISRO’s NavIC system
"
"The last atomic clock aboard the Indian Space Research Organisation’s (ISRO) Indian Regional Navigation Satellite System (IRNSS)-1F satellite has failed, .."
".. imported by ISRO from SpectraTime, a Switzerland-based maker .."

https://www.thehindu.com/sci-tech/isro-navic-system-atomic-clock-failure/article70743233.ece

14.3.2026

#GNSS #Indien #IRNSS #IRNSS1F #ISRO #NavIC #NavSat #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#TheHindu:
"
Failure of atomic clock cripples ISRO’s NavIC system
"
"The last atomic clock aboard the Indian Space Research Organisation’s (ISRO) Indian Regional Navigation Satellite System (IRNSS)-1F satellite has failed, .."
".. imported by ISRO from SpectraTime, a Switzerland-based maker .."

https://www.thehindu.com/sci-tech/isro-navic-system-atomic-clock-failure/article70743233.ece

14.3.2026

#GNSS #Indien #IRNSS #IRNSS1F #ISRO #NavIC #NavSat #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#TheHindu:
"
Failure of atomic clock cripples ISRO’s NavIC system
"
"The last atomic clock aboard the Indian Space Research Organisation’s (ISRO) Indian Regional Navigation Satellite System (IRNSS)-1F satellite has failed, .."
".. imported by ISRO from SpectraTime, a Switzerland-based maker .."

https://www.thehindu.com/sci-tech/isro-navic-system-atomic-clock-failure/article70743233.ece

14.3.2026

#GNSS #Indien #IRNSS #IRNSS1F #ISRO #NavIC #NavSat #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

#Indianexpres:
"
India’s navigation satellite system suffers major setback: 1 of 4 operational IRNSS satellites fails
"
"At least four indigenous navigation satellites must be fully operational for the NavIC system to provide navigation services .."

"IRNSS 1-F, launched on March 10, 2016, failed after its last functional atomic clock malfunctioned,"

https://indianexpress.com/article/india/navic-satellite-irnss-1f-failure-atomic-clock-malfunction-10581224/

14.3.2026

#GNSS #Indien #IRNSS #IRNSS1F #ISRO #NavIC #NavSat #Navigationssatellit #Raumfahrt #Satelliten #SpaceFlight

Demux'd Thoughts:
"
Analyzing effects of ISRO's NVS-02 Navigation Satellite failure on NavIC users

A round-up of the impacts of NVS-02 with some context
"
https://demuxdthoughts.substack.com/p/analyzing-effects-of-isros-nvs-02

7.2.2025

#India #Indien #IRNSS #ISRO #I2K #Navigationssatellit #NavIC #NVS02 #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight