Три Swarm – Рокот/Бриз-КМ – 22.11.2013 - Плесецк

Автор Salo, 01.03.2012 10:24:44

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che wi

Swarm's precise sense of magnetism
http://www.esa.int/Our_Activities/Observing_the_Earth/Swarm/Swarm_s_precise_sense_of_magnetism

ЦитироватьAlthough they were launched only five months ago, ESA's trio of Swarm satellites are already delivering results with a precision that took earlier missions 10 years to achieve.

Engineers have spent the last five months commissioning the identical satellites and carefully guiding them into their orbits to provide the crucial measurements that will unravel the mysteries of Earth's magnetic field.

Swarm has a challenging task ahead.

Together, the satellites will measure and untangle the different magnetic readings that stem from Earth's core, mantle, crust, oceans, ionosphere and magnetosphere.

In addition, information will also be provided to calculate the electric field near each satellite – an important counterpart to the magnetic field for studying the upper atmosphere.

Two satellites are now orbiting almost side by side and have started their operational life at 462 km altitude. The third is higher, at 510 km.

The readings made at different locations will be used to distinguish between the changes in the magnetic field caused by the Sun's activity and those signals that originate from inside Earth.

Swarm is now in its fine-tuning phase but it has already produced enough information to build models of the magnetic field for comparison with existing models.

This proves that only a few months of Swarm data agree very well with a decade or more of predecessor missions.

 

For example, the image above shows the differences between Swarm's version of the magnetic field from Earth's crust compared to the 'Chaos-4' model. There are very few differences, demonstrating that the mission is working well.

ESA's mission manager, Rune Floberghagen, said, "Although it has certainly been a big job getting the three satellites ready for operations, we are all very happy with how well the mission is doing so soon after launch.

"Scientists will start to have access to the mission's magnetic field data in a couple of weeks."

Over the coming years, this innovative mission will provide new insight into many natural processes, from those occurring deep inside the planet to weather in space caused by solar activity.

In turn, this information will yield a better understanding of why the magnetic field is weakening.

The first results and status of the mission will be presented at a Swarm science meeting on 19–20 June in Denmark.

———
ESA | 7 May 2014

Сергио

В принципе логично, местные магнитные аномалии на картах обозначаются - год измерения, аномалия в градусах, на сколько уходит в год.

ZOOR

#262
https://earth.esa.int/documents/10174/1514862/Swarm_Data_Access_User_Manual
Swarm PDGS Data Access User Manual

Свеженькое, еще недели не прошло

https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/swarm/news/-/article/esa-makes-first-swarm-datasets-available
 
ЦитироватьESA makes first Swarm datasets available
16 May  2014
    The European Space Agency is pleased to announce the release of the first set of products based on the Swarm satellites.
    Launched on 22 November 2013 and after an intensive commissioning phase, which saw the deployment of the constellation as well as the complete verification and validation of all instrument data, ESA is now in the position to gradually release the data.
    Starting today, Level 1b data from the orbit, attitude and magnetometer data processors are immediately available upon processing.
Я зуб даю за то что в первом пуске Ангары с Восточного полетит ГВМ Пингвина. © Старый
Если болит сердце за народные деньги - можно пойти в депутаты. © Neru - Старому

ZOOR

#263
Как-то незаметно пробежал год и месяц
https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/swarm/news/-/article/swarm-celebrates-one-year-in-orbit

ЦитироватьSwarm celebrates one year in orbit
24 November 2014

One year ago, on 22 November 2013, Swarm was launched and started its highly successful mapping of the Earth's magnetic field, electric field and other geospace parameters.

We celebrate the mission's first birthday and wish the trio of satellites a long and healthy life in the service of science.
Я зуб даю за то что в первом пуске Ангары с Восточного полетит ГВМ Пингвина. © Старый
Если болит сердце за народные деньги - можно пойти в депутаты. © Neru - Старому

ZOOR

Ну вот, неожиданный эффект миссии
ЦитироватьWhat Causes GPS Signal Loss on Satellites like Swarm?

Using data from the European Space Agency's Swarm mission, scientists find that abrupt drops in the ionosphere's electron density may cause low-orbiting satellites to lose contact with GPS satellites

По-русски
Я зуб даю за то что в первом пуске Ангары с Восточного полетит ГВМ Пингвина. © Старый
Если болит сердце за народные деньги - можно пойти в депутаты. © Neru - Старому