AVISO Altimetry News

[Jason-2] : Satellite in Safe Hold Mode since 14 September 2017 07:13:04 UTC

AVISO News of the Jason-2 Altimeter - Thu, 2017-09-14 17:00
After 2 months of smooth operation on the Long Repeat Orbit (LRO) the Jason-2 spacecraft entered safe hold mode yesterday (Thursday, September 14th) at 07:13:04 UTC, immediately interrupting its measurements. The OPS team at NOAA and CNES applied immediately necessary procedures and the satellite is currently in a safe and stable Sun-pointing configuration. First investigations show that Gyrometer 1 was blocked, triggering the reconfiguration to SHM. The gyros temperature increase during period where Beta angle is high remains a concern.  All other equipments were OK at the time of the reconfiguration.
The 4 partners operational teams are working closely to support current and future operations. The mission will resume as soon as technically possible. T. Guinle & C. Marechal, CNES
Categories: AVISO Altimetry News

[Jason-2] : Satellite in Safe Hold Mode since 14 September 2017 07:13:04 UTC

AVISO News of Other Altimeter Missions - Thu, 2017-09-14 17:00
After 2 months of smooth operation on the Long Repeat Orbit (LRO) the Jason-2 spacecraft entered safe hold mode yesterday (Thursday, September 14th) at 07:13:04 UTC, immediately interrupting its measurements. The OPS team at NOAA and CNES applied immediately necessary procedures and the satellite is currently in a safe and stable Sun-pointing configuration. First investigations show that Gyrometer 1 was blocked, triggering the reconfiguration to SHM. The gyros temperature increase during period where Beta angle is high remains a concern.  All other equipments were OK at the time of the reconfiguration.
The 4 partners operational teams are working closely to support current and future operations. The mission will resume as soon as technically possible. T. Guinle & C. Marechal, CNES
Categories: AVISO Altimetry News

[Jason-2] : Satellite in Safe Hold Mode since 14 September 2017 07:13:04 UTC

AVISO Lively Data - Thu, 2017-09-14 17:00
After 2 months of smooth operation on the Long Repeat Orbit (LRO) the Jason-2 spacecraft entered safe hold mode yesterday (Thursday, September 14th) at 07:13:04 UTC, immediately interrupting its measurements. The OPS team at NOAA and CNES applied immediately necessary procedures and the satellite is currently in a safe and stable Sun-pointing configuration. First investigations show that Gyrometer 1 was blocked, triggering the reconfiguration to SHM. The gyros temperature increase during period where Beta angle is high remains a concern.  All other equipments were OK at the time of the reconfiguration.
The 4 partners operational teams are working closely to support current and future operations. The mission will resume as soon as technically possible. T. Guinle & C. Marechal, CNES
Categories: AVISO Altimetry News

Hurricane Irma seen by remote sensing satellites

AVISO News of the Jason-2 Altimeter - Thu, 2017-09-14 06:32
Hurricane Irma seen by remote sensing satellites : wind speed from Sentinel-1, wave heights from...
Categories: AVISO Altimetry News

Hurricane Irma seen by remote sensing satellites

AVISO News of Other Altimeter Missions - Thu, 2017-09-14 06:32
Hurricane Irma seen by remote sensing satellites : wind speed from Sentinel-1, wave heights from...
Categories: AVISO Altimetry News

Hurricane Irma seen by remote sensing satellites

AVISO Lively Data - Thu, 2017-09-14 06:32
Hurricane Irma seen by remote sensing satellites : wind speed from Sentinel-1, wave heights from...
Categories: AVISO Altimetry News

4-11 September, 2017 week

AVISO News of the Jason-2 Altimeter - Thu, 2017-09-14 05:18
Au Cnes on étudie l'évolution de l'océan et la prédiction des cyclones (La Dépêche, 2017/09/08)
Les coraux de l'océan Pacifique subissent un blanchissement massif (RTL, 2017/09/07)
Evidence of sea level 'fingerprints'  (NASA, 2017/09/07)
Réchauffement climatique : l'expédition Tara alerte sur le blanchissement massif des coraux (France Info, 2017/09/06)
Les grizzlys sont-ils en train de devenir « végétariens » sous l’effet du réchauffement climatique ? (Science Post, 2017/09/04)
Climat : "On aura des étés de plus en plus chauds, surtout si rien n'est fait contre le réchauffement" (France TV info, 2017/09/01)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: AVISO Altimetry News

4-11 September, 2017 week

AVISO News of Other Altimeter Missions - Thu, 2017-09-14 05:18
Au Cnes on étudie l'évolution de l'océan et la prédiction des cyclones (La Dépêche, 2017/09/08)
Les coraux de l'océan Pacifique subissent un blanchissement massif (RTL, 2017/09/07)
Evidence of sea level 'fingerprints'  (NASA, 2017/09/07)
Réchauffement climatique : l'expédition Tara alerte sur le blanchissement massif des coraux (France Info, 2017/09/06)
Les grizzlys sont-ils en train de devenir « végétariens » sous l’effet du réchauffement climatique ? (Science Post, 2017/09/04)
Climat : "On aura des étés de plus en plus chauds, surtout si rien n'est fait contre le réchauffement" (France TV info, 2017/09/01)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: AVISO Altimetry News

4-11 September, 2017 week

AVISO Lively Data - Thu, 2017-09-14 05:18
Au Cnes on étudie l'évolution de l'océan et la prédiction des cyclones (La Dépêche, 2017/09/08)
Les coraux de l'océan Pacifique subissent un blanchissement massif (RTL, 2017/09/07)
Evidence of sea level 'fingerprints'  (NASA, 2017/09/07)
Réchauffement climatique : l'expédition Tara alerte sur le blanchissement massif des coraux (France Info, 2017/09/06)
Les grizzlys sont-ils en train de devenir « végétariens » sous l’effet du réchauffement climatique ? (Science Post, 2017/09/04)
Climat : "On aura des étés de plus en plus chauds, surtout si rien n'est fait contre le réchauffement" (France TV info, 2017/09/01)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: AVISO Altimetry News

September 2017: 25 years, and many more to come

AVISO News of the Jason-2 Altimeter - Mon, 2017-09-11 01:10
Topex/Poseidon was launched 25 years ago: the starting point of a success story, still ongoing.
Categories: AVISO Altimetry News

September 2017: 25 years, and many more to come

AVISO News of Other Altimeter Missions - Mon, 2017-09-11 01:10
Topex/Poseidon was launched 25 years ago: the starting point of a success story, still ongoing.
Categories: AVISO Altimetry News

September 2017: 25 years, and many more to come

AVISO Lively Data - Mon, 2017-09-11 01:10
Topex/Poseidon was launched 25 years ago: the starting point of a success story, still ongoing.
Categories: AVISO Altimetry News

August 20 - Septembre 3, 2017 weeks

AVISO News of the Jason-2 Altimeter - Thu, 2017-09-07 06:42
Des ouragans plus puissants à cause du réchauffement climatique ? (Science Post, 2017/01/09)
Le réchauffement climatique pourrait réduire la taille du poisson (Le marin, 2018/08/29)
Ouragans : la faute du réchauffement climatique ? (Sciences Avenir, 2018/08/28)
Le réchauffement climatique rend l’est des Etats-Unis extrêmement vulnérable (le Monde, 2018/08/28)
Changement climatique : des cyclones plus intenses, mais pas plus fréquents (Sud Ouest, 2017/08/27)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: AVISO Altimetry News

August 20 - Septembre 3, 2017 weeks

AVISO News of Other Altimeter Missions - Thu, 2017-09-07 06:42
Des ouragans plus puissants à cause du réchauffement climatique ? (Science Post, 2017/01/09)
Le réchauffement climatique pourrait réduire la taille du poisson (Le marin, 2018/08/29)
Ouragans : la faute du réchauffement climatique ? (Sciences Avenir, 2018/08/28)
Le réchauffement climatique rend l’est des Etats-Unis extrêmement vulnérable (le Monde, 2018/08/28)
Changement climatique : des cyclones plus intenses, mais pas plus fréquents (Sud Ouest, 2017/08/27)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: AVISO Altimetry News

August 20 - Septembre 3, 2017 weeks

AVISO Lively Data - Thu, 2017-09-07 06:42
Des ouragans plus puissants à cause du réchauffement climatique ? (Science Post, 2017/01/09)
Le réchauffement climatique pourrait réduire la taille du poisson (Le marin, 2018/08/29)
Ouragans : la faute du réchauffement climatique ? (Sciences Avenir, 2018/08/28)
Le réchauffement climatique rend l’est des Etats-Unis extrêmement vulnérable (le Monde, 2018/08/28)
Changement climatique : des cyclones plus intenses, mais pas plus fréquents (Sud Ouest, 2017/08/27)
On line availability of articles depends on the Newspaper/magazine. We can't thus certify that above articles will be freely and permanently available.
Categories: AVISO Altimetry News

August 2017: Currents & waves

AVISO News of the Jason-2 Altimeter - Wed, 2017-09-06 02:20
Currents can influence waves. With the coming of SWOT high-resolution data, it is important to...
Categories: AVISO Altimetry News

August 2017: Currents & waves

AVISO News of Other Altimeter Missions - Wed, 2017-09-06 02:20
Currents can influence waves. With the coming of SWOT high-resolution data, it is important to...
Categories: AVISO Altimetry News

August 2017: Currents & waves

AVISO Lively Data - Wed, 2017-09-06 02:20
Currents can influence waves. With the coming of SWOT high-resolution data, it is important to...
Categories: AVISO Altimetry News

[JASON-3] Expected telemetry outage during next JA3 DEM upload

AVISO News of the Jason-2 Altimeter - Wed, 2017-08-30 00:53
A DEM (Digital Earth Model) update operation is currently ongoing on Jason 3. This DEM update will enable, once finished, measurements on 4400 new river targets and ~450 new lakes. Today, Wednesday 30th of August, the most complex part of that upload will take place between 14:00UTC and 14:20UTC. During that timeframe, a telemetry outage of less than 10 minutes should be expected. After that operation, Jason-3 telemetry will already benefit the updates of the DEM.  A last operation will take place tomorrow, Thursday 31st of August, around 14:30UTC, with an expected telemetry outage of approximately 3 minutes.
Categories: AVISO Altimetry News

[JASON-3] Expected telemetry outage during next JA3 DEM upload

AVISO News of Other Altimeter Missions - Wed, 2017-08-30 00:53
A DEM (Digital Earth Model) update operation is currently ongoing on Jason 3. This DEM update will enable, once finished, measurements on 4400 new river targets and ~450 new lakes. Today, Wednesday 30th of August, the most complex part of that upload will take place between 14:00UTC and 14:20UTC. During that timeframe, a telemetry outage of less than 10 minutes should be expected. After that operation, Jason-3 telemetry will already benefit the updates of the DEM.  A last operation will take place tomorrow, Thursday 31st of August, around 14:30UTC, with an expected telemetry outage of approximately 3 minutes.
Categories: AVISO Altimetry News
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