#nvs02 — Public Fediverse posts

#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

#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

#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

(Contd.)

Failure Analysis Committee formed for #NVS02, A S Kiran Kumar (former ISRO Chairman) will head it.

https://www.rediff.com/news/special/former-isro-chairman-to-probe-failure/20250208.htm

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

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

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

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

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

@Ohsin Do not see "attitude control thrusters" mentioned. Mentioned is "The satellite was stabilised in GTO using its gyro wheels".

May be they try to raise it´s orbit a bit by a "simple" propellant blow down without burning the prop.

#Indien #ISRO #I2K #Navigationssatellit #NVS02 #Raumfahrt
#Satelliten #Satellitennavigation #SpaceFlight

@Ohsin Do not see "attitude control thrusters" mentioned. Mentioned is "The satellite was stabilised in GTO using its gyro wheels".

May be they try to raise it´s orbit a bit by a "simple" propellant blow down without burning the prop.

#Indien #ISRO #I2K #Navigationssatellit #NVS02 #Raumfahrt
#Satelliten #Satellitennavigation #SpaceFlight

@Ohsin Do not see "attitude control thrusters" mentioned. Mentioned is "The satellite was stabilised in GTO using its gyro wheels".

May be they try to raise it´s orbit a bit by a "simple" propellant blow down without burning the prop.

#Indien #ISRO #I2K #Navigationssatellit #NVS02 #Raumfahrt
#Satelliten #Satellitennavigation #SpaceFlight

@Ohsin Do not see "attitude control thrusters" mentioned. Mentioned is "The satellite was stabilised in GTO using its gyro wheels".

May be they try to raise it´s orbit a bit by a "simple" propellant blow down without burning the prop.

#Indien #ISRO #I2K #Navigationssatellit #NVS02 #Raumfahrt
#Satelliten #Satellitennavigation #SpaceFlight

@Ohsin Do not see "attitude control thrusters" mentioned. Mentioned is "The satellite was stabilised in GTO using its gyro wheels".

May be they try to raise it´s orbit a bit by a "simple" propellant blow down without burning the prop.

#Indien #ISRO #I2K #Navigationssatellit #NVS02 #Raumfahrt
#Satelliten #Satellitennavigation #SpaceFlight

Pyro Valve seems to be the culprit but they still have attitude control thrusters functional.

https://www.rediff.com/news/report/pyro-valve-failure-big-setback-for-isro/20250203.htm

Not sure what they have in mind but perhaps they want to raise perigee and seek satellite servicing services?

#NVS02 #ISRO

#ISRO #NVS02:

"..Subsequent to the launch, the solar panels .. deployed and power generation is nominal. Com. .. has been established. .. orbit raising.. could not be carried out as the valves for admitting the oxidizer to fire the thrusters ..did not open.

.. mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out. "

https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html

2.2.2025

#Indien #I2K #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#ISRO #NVS02:

"..Subsequent to the launch, the solar panels .. deployed and power generation is nominal. Com. .. has been established. .. orbit raising.. could not be carried out as the valves for admitting the oxidizer to fire the thrusters ..did not open.

.. mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out. "

https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html

2.2.2025

#Indien #I2K #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#ISRO #NVS02:

"..Subsequent to the launch, the solar panels .. deployed and power generation is nominal. Com. .. has been established. .. orbit raising.. could not be carried out as the valves for admitting the oxidizer to fire the thrusters ..did not open.

.. mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out. "

https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html

2.2.2025

#Indien #I2K #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#ISRO #NVS02:

"..Subsequent to the launch, the solar panels .. deployed and power generation is nominal. Com. .. has been established. .. orbit raising.. could not be carried out as the valves for admitting the oxidizer to fire the thrusters ..did not open.

.. mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out. "

https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html

2.2.2025

#Indien #I2K #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

#ISRO #NVS02:

"..Subsequent to the launch, the solar panels .. deployed and power generation is nominal. Com. .. has been established. .. orbit raising.. could not be carried out as the valves for admitting the oxidizer to fire the thrusters ..did not open.

.. mission strategies for utilising the satellite for navigation in an elliptical orbit is being worked out. "

https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html

2.2.2025

#Indien #I2K #Navigationssatellit #Raumfahrt #Satelliten #Satellitennavigation #SpaceFlight

NVS-02 in trouble..

https://www.isro.gov.in/GSLV-F15_NVS-02_Mission.html

"Subsequent to the launch, the solar panels on board the satellite were successfully deployed and power generation is nominal. Communication with the ground station has been established. But the orbit raising operations towards positioning the satellite to the designated orbital slot could not be carried out as the valves for admitting the oxidizer to fire the thrusters for orbit raising did not open."

#GSLVF15 #NVS02 #ISRO