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{{Short description|French Earth observation satellite}}
{{Use British English|date=June 2020}}
{{Use dmy dates|date=June 2020}}
{{Infobox spaceflight
{{Infobox spaceflight
| name = Pléiades-HR 1A, Pléiades-HR 1B
| name = Pléiades-1A and Pléiades-1B
| names_list = <!--list of previous names if the spacecraft has been renamed.
| names_list =
| image = Pléiades (satellite).jpg
Include the dates applicable if possible, and separate each name with a linebreak.
| image_caption = Pléiades satellite
Omit if the spacecraft has only ever been known by one name.
| image_size = 300px
Do not include Harvard, COSPAR/NSSDC or SATCAT/NORAD/NASA designations as alternative names-->


| mission_type = [[Earth observation]]/[[Reconnaissance satellite|Reconnaissance]]
<!--image of the spacecraft/mission-->
| image = Pléiades (satellite).jpg
| operator = [[CNES]]
| image_caption = <!--image caption-->
| COSPAR_ID = '''1A''': 2011-076F<br/>'''1B''': 2012-068A
| image_alt = <!--image alt text-->
| SATCAT = '''1A''': 38012<br/>'''1B''': 39019
| website = [https://pleiades.cnes.fr/en/PLEIADES/index.htm CNES (Pléiades satellites)]
| image_size = <!--include px/em; defaults to 220px-->
| mission_duration = 5 years (planned)


| spacecraft =
<!--Basic details-->
| spacecraft_type =
| mission_type = [[Earth observation]]
| operator = [[CNES]]
| spacecraft_bus = [[Astrosat-1000]]
| manufacturer = [[Airbus Defence and Space|EADS Astrium Satellites]]
| Harvard_designation = <!--spacecraft launched 1962 and earlier only (eg. 1957 Alpha 2)-->
| launch_mass = {{cvt|970|kg}} (each)
| COSPAR_ID = '''1A''': 2011-076F<br/>'''1B''': 2012-068A
| dimensions =
| SATCAT = '''1A''': 38012<br/>'''1B''': 39019
| website = [http://smsc.cnes.fr/PLEIADES/ At CNES.fr]
| power =
| mission_duration = 5 years (planned)
| distance_travelled = <!--How far the spacecraft travelled (if known)-->
| orbits_completed = <!--number of times the spacecraft orbited the Earth - see below for spacecraft beyond Earth orbit-->
| suborbital_range = <!--downrange distance reached if spacecraft did not enter orbit-->
| suborbital_apogee = <!--altitude reached if spacecraft did not enter orbit-->


| launch_date = '''1A''': {{start date|df=yes|2011|12|17|02|03|7=Z}}<br/>'''1B''': {{start date|df=yes|2012|12|02|02|02|7=Z}}
<!--Spacecraft properties-->
| launch_rocket = [[Soyuz-2|Soyuz ST-A]] / [[Fregat]]
| spacecraft = <!--Spacecraft name/serial number (eg. Space Shuttle ''Discovery'', Apollo CM-118), etc-->
| launch_site = [[Guiana Space Centre|Centre Spatial Guyanais]], [[Ensemble de Lancement Soyouz|ELS]]
| spacecraft_type = <!--eg. GPS Block II, Kobalt-M, US-K, etc-->
| launch_contractor =
| spacecraft_bus = [[Astrosat-1000]]
| manufacturer = [[EADS Astrium]]
| launch_mass = {{convert|970|kg|abbr=on}} each
| BOL_mass = <!--spacecraft mass in orbit at beginning of operational life, after LEOP phase-->
| landing_mass = <!--Mass after landing (recovered spacecraft only)-->
| dry_mass = <!--spacecraft mass in orbit without fuel-->
| payload_mass = <!--Mass of cargo carried by spacecraft (eg. for Space Shuttle), or total mass of instrumentation/equipment/experiments for mission-->
| dimensions = <!--body dimensions and solar array span-->
| power = <!--end-of-life power, in watts-->


| entered_service =
<!--Launch details-->
| disposal_type =
| launch_date = '''1A''': {{start date|2011|12|17|02|03|7=Z}}<br/>'''1B''': {{start date|2012|12|02|02|02|7=Z}}
| deactivated =
| launch_rocket = [[Soyuz-2#Soyuz 2.1a|Soyuz STA]] with [[Fregat]] upper stage
| destroyed =
| launch_site = [[Guiana Space Centre]]-[[Ensemble de Lancement Soyouz|ELS]]
| last_contact =
| launch_contractor = <!--organisation(s) that conducted the launch (eg. United Launch Alliance, Arianespace, etc)-->
| deployment_from = <!--place where deployed from-->
| deployment_date = <!--date deployed-->
| entered_service = <!--date on which the spacecraft entered service, if it did not do so immediately after launch-->
<!-- * - e.g. Proton-M/Briz-M not Proton-M, but Titan IV(401)A not Titan IV(401)A-Centaur-->


| orbit_reference = [[Geocentric orbit]]
<!--end of mission-->
| orbit_regime = [[Sun-synchronous orbit]]
| disposal_type = <!--Whether the spacecraft was deorbited, decommissioned, placed in a graveyard orbit, etc-->
| orbit_altitude = {{cvt|695|km}}
| deactivated = <!--when craft was decommissioned-->
| orbit_inclination = 98.2°
| destroyed = <!--when craft was destroyed (if other than by re-entry)-->
| orbit_period =
| last_contact = <!--when last signal received if not decommissioned-->
| recovery_by = <!--recovered by-->
| apsis = gee
| recovery_date = <!--recovery date-->
| decay_date = <!--when craft re-entered the atmosphere, not needed if it landed-->
| landing_date = <!--when the spacecraft made a controlled landing, not needed if it did not return intact-->
| landing_site = <!--where the craft landed; site/runway or coordinates-->
<!--
The following template should be used for ONE of the three above fields "end_of_mission", "decay" or "landing" if the spacecraft is no longer operational.
If it landed intact, use it for the landing time, otherwise for the date it ceased operations, or the decay date if it was still operational when it re-entered.
{{end date|YYYY|MM|DD|hh|mm|ss|TZ=Z}} (for Zulu/UTC) or {{end date|YYYY|MM|DD}} (if time unknown)
-->


| insignia =
<!--orbit parameters-->
| insignia_caption =
<!--as science-related articles, SI units should be the principal units of measurement, however we usually use {{convert}} to display imperial units in parentheses after the initial values-->
| insignia_size = 200px
| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_regime = [[sun-synchronous]]
| orbit_longitude = <!--geosynchronous satellites only-->
| orbit_slot = <!--Designation of orbital position or slot, if not longitude (e.g plane and position of a GPS satellite)-->
| orbit_semimajor = <!--semimajor axis-->
| orbit_eccentricity = ~0
| orbit_periapsis = {{convert|695|km|abbr=on}}
| orbit_apoapsis = {{convert|695|km|abbr=on}}
| orbit_inclination = 98.2
| orbit_period = <!--time taken to complete an orbit-->
| orbit_RAAN = <!--right ascension of the ascending node-->
| orbit_arg_periapsis = <!--argument of perigee/periapsis-->
| orbit_mean_anomaly = <!--mean anomaly at epoch, only use in conjunction with an epoch value-->
| orbit_mean_motion = <!--mean motion of the satellite, usually measured in orbits per day-->
| orbit_repeat = <!--repeat interval/revisit time-->
| orbit_velocity = <!--speed at which the spacecraft was travelling at epoch - only use for spacecraft with low orbital eccentricity-->
| orbit_epoch = <!--the date at which the orbit parameters were correct-->
| orbit_rev_number = <!--revolution number-->
| apsis = gee


| programme =
<!--transponder parameters-->
| previous_mission =
| trans_band = <!--Transponder frequency bands-->
| next_mission =
| trans_frequency = <!--specific frequencies-->
}}
| trans_bandwidth = <!--bandwidth-->
| trans_capacity = <!--capacity of the transponders-->
| trans_coverage = <!--area covered-->
| trans_TWTA = <!--TWTA output power-->
| trans_EIRP = <!--equivalent isotropic power-->
| trans_HPBW = <!--half-power beam width-->


The '''Pléiades''' [[Satellite constellation|constellation]] is composed of two very-high-resolution optical [[Earth-imaging satellite]]s. '''Pléiades-1A''' and '''Pléiades-1B''' provide the coverage of Earth's surface with a repeat cycle of 26 days.<ref>"[http://smsc.cnes.fr/PLEIADES/GP_systeme.htm Pléiades System CNES]"</ref> Designed as a dual civil/military system, Pléiades will meet the space imagery requirements of European defence as well as civil and commercial needs.
<!--Only use where a spacecraft/mission is part of a clear programme of sequential missions.
If in doubt, leave it out-->
| programme =
| previous_mission =
| next_mission =

<!--mission insignia or patch-->
| insignia = <!--omit the "file" prefix-->
| insignia_caption = <!--image caption-->
| insignia_alt = <!--image alt text-->
| insignia_size = <!--include px/em; defaults to 180px-->
}}
The '''Pléiades''' [[Satellite constellation|constellation]] is composed of two very-high-resolution optical [[Earth-imaging satellite]]s. '''Pléiades-HR 1A''' and '''Pléiades-HR 1B''' provide the coverage of Earth's surface with a repeat cycle of 26 days.<ref>"[http://smsc.cnes.fr/PLEIADES/GP_systeme.htm Pléiades System CNES]".</ref> Designed as a dual civil/military system, Pléiades will meet the space imagery requirements of [[Europe]]an defence as well as civil and commercial needs.


== History ==
== History ==
The Pléiades system was designed under the French-Italian [[Orfeo Programme|ORFEO program]] (Optical & Radar Federated Earth Observation) between 2001 and 2003.<ref>"[http://www.cnes-multimedia.fr/cnes_fr/cnesmag/cnesmag17_FR_cooperation.pdf Pléiades CNES Mag]".</ref>
The Pléiades system was designed under the French-Italian [[Orfeo Programme|ORFEO Programme]] (Optical and Radar Federated Earth Observation) between 2001 and 2003.<ref>"[http://www.cnes-multimedia.fr/cnes_fr/cnesmag/cnesmag17_FR_cooperation.pdf Pléiades CNES Mag] {{Webarchive|url=https://web.archive.org/web/20110720212252/http://www.cnes-multimedia.fr/cnes_fr/cnesmag/cnesmag17_FR_cooperation.pdf |date=20 July 2011 }}"</ref>


The Pléiades programme was launched in October 2003 with [[CNES]] (the French space agency) as the overall system prime contractor and [[EADS Astrium]] as the prime contractor for the space segment.
The Pléiades programme was launched in October 2003 with [[CNES]] (the French space agency) as the overall system prime contractor and [[EADS Astrium]] as the prime contractor for the space segment.
Line 118: Line 61:


== Launches ==
== Launches ==
*'''Pléiades-HR 1A''' was launched via a Russian [[Soyuz-2#Soyuz 2.1a|Soyuz STA]] rocket out of the [[Guiana Space Centre]], [[Kourou]], [[French Guiana]], on December 17, 2011, 02:03 UTC.
* '''Pléiades-1A''' was launched via a Russian [[Soyuz-2|Soyuz ST-A]] launch vehicle of the [[Guiana Space Centre|Centre Spatial Guyanais]], [[Kourou]], [[French Guiana]], on 17 December 2011 at 02:03 [[Coordinated Universal Time|UTC]].
*'''Pléiades-HR 1B''' was launched via a Russian [[Soyuz-2#Soyuz 2.1a|Soyuz STA]] rocket out of the [[Guiana Space Centre]], [[Kourou]], [[French Guiana]], on December 2, 2012, 02:02 UTC.<ref>{{cite web|url=https://www.reuters.com/article/2012/12/02/us-space-france-russia-idUSBRE8B101L20121202|title=Soyuz rocket blasts off from French Guiana|work=Reuters}}</ref><ref>{{cite web|url=http://www.forum-conquete-spatiale.fr/t14423p45-lancement-soyouz-st-a-vs04-pleiades-1b-2-decembre-2012|title=Lancement Soyouz-ST-A VS04 / Pléiades-1B - 2 décembre 2012 - Page 4|work=www.forum-conquete-spatiale.fr}}</ref>
* '''Pléiades-1B''' was launched via a Russian [[Soyuz-2|Soyuz ST-A]] launch vehicle of the [[Guiana Space Centre|Centre Spatial Guyanais]], [[Kourou]], [[French Guiana]], on 2 December 2012 at 02:02 UTC.<ref>{{cite news|url=https://www.reuters.com/article/us-space-france-russia-idUSBRE8B101L20121202|title=Soyuz rocket blasts off from French Guiana|work=Reuters|date=2 December 2012}}</ref><ref>{{cite web|url=http://www.forum-conquete-spatiale.fr/t14423p45-lancement-soyouz-st-a-vs04-pleiades-1b-2-decembre-2012|title=Lancement Soyouz-ST-A VS04 / Pléiades-1B|publisher=forum-conquete-spatiale.fr}}</ref>


== Technologies ==
== Technologies ==

=== Orbit ===
=== Orbit ===
The two satellites operate in the same phased orbit and will be offset at 180° to offer a daily revisit capability over any point on the globe. The Pléiades also share the same orbital plane as the [[SPOT (satellite)#SPOT 6 and SPOT 7|SPOT 6 and 7]], forming a larger constellation with 4 satellites, 90° apart from one another.<ref>{{cite web| url=https://directory.eoportal.org/web/eoportal/satellite-missions/p/pleiades| title=Pleiades eoPortal Directory| publisher=eoPortal| access-date=2015-06-04}}</ref>
The two satellites operate in the same phased orbit and are offset at 180° to offer a daily revisit capability over any point on the globe. The Pléiades also share the same orbital plane as the [[SPOT (satellite)|SPOT 6 and 7]], forming a larger constellation with 4 satellites, 90° apart from one another.<ref>{{cite web|url=https://directory.eoportal.org/web/eoportal/satellite-missions/p/pleiades
|title=Pleiades eoPortal Directory|publisher=eoPortal|access-date=2015-06-04}}</ref>
* Orbit: Sun-synchronous, phased, near-circular
* Orbit: Sun-synchronous, phased, near-circular
* Mean altitude: 694&nbsp;km.
* Mean altitude: 695&nbsp;km


=== Innovation ===
=== Equipment ===
Equipped with innovative latest-generation space technologies like fibre-optic gyros and control moment gyros, Pléiades-HR 1A and 1B will offer exceptional roll, pitch and yaw (slew) agility, enabling the system to maximize the number of acquisitions above a given area.
Equipped with technologies like [[fibre-optic gyroscope]]s and [[control moment gyroscope]]s, Pléiades-HR 1A, and 1B offer roll, pitch, and yaw (slew) agility, enabling the system to maximize the number of acquisitions above a given area.


=== Agility for Responsive Tasking ===
=== Agility for Responsive Tasking ===
This agility coupled with particularly dynamic image acquisition programming will make the Pléiades system very responsive to specific user requirements. Individual user requests will be answered in record time, thanks to multiple programming plans per day and a state-of-the-art image processing chain. Performance at a glance:
This agility coupled with particularly dynamic image acquisition programming make the Pléiades system very responsive to specific user requirements. Individual user requests was answered in record time, thanks to multiple programming plans per day and a state-of-the-art image processing chain. Performance at a glance:
* Image acquisition anywhere within an 800-km-wide ground strip with 70&nbsp;cm of resolution
* Image acquisition anywhere within an 800-km-wide ground strip with 70&nbsp;cm of resolution
* Along-track stereo and tri-stereo image acquisition
* Along-track stereo and tri-stereo image acquisition
* Single-pass collection of mosaics (strip-mapping) with a footprint up to a square degree
* Single-pass collection of mosaics (strip-mapping) with a footprint up to a square degree
* Maximum theoretical acquisition capacity of 1,000,000&nbsp;km<sup>2</sup> per day and per satellite
* Maximum theoretical acquisition capacity of 1,000,000&nbsp;km<sup>2</sup> per day and per satellite
* Optimized daily acquisition capacity (taking into account genuine order book, weather constraints, conflicts...) reaching 300,000&nbsp;km<sup>2</sup> per day and per satellite.
* Optimized daily acquisition capacity (taking into account genuine order book, weather constraints, conflicts...) reaching 300,000&nbsp;km<sup>2</sup> per day and per satellite


=== Products ===
=== Products ===

{|class="wikitable" width="60%" align="center"
{|class="wikitable" width="60%" align="center"
|-
|-
|align="center" |'''Resolution'''
|align="center" | '''Resolution'''
|align="left" |Panchromatic: 50&nbsp;cm
|align="left" | Panchromatic: 50&nbsp;cm
|-
|-
|
|
|align="left" |Multispectral: 2 m
|align="left" | Multispectral: 2 m
|-
|-
|
|
|align="left" |Pansharpened: 50&nbsp;cm,
|align="left" | Pansharpened: 50&nbsp;cm
|-
|-
|
|
|align="left" |Bundle: 50&nbsp;cm PAN & 2 m MS
|align="left" | Bundle: 50&nbsp;cm PAN and 2 m MS
|-
|-
|align="center" |'''Footprint'''
|align="center" | '''Footprint'''
|align="left" |20&nbsp;km swath
|align="left" | 20&nbsp;km swath
|-
|-
|
|
|align="left" |Single pass mosaics up to 100&nbsp;km x 100&nbsp;km
|align="left" | Single pass mosaics up to 100 x 100&nbsp;km
|}<ref>"[http://smsc.cnes.fr/PLEIADES/A_produits.htm Pléiades Products CNES]".</ref>
|}<ref>"[http://smsc.cnes.fr/PLEIADES/A_produits.htm Pléiades Products CNES]"</ref>


=== Ground receiving stations ===
=== Ground receiving stations ===
When satellite operations begin, four ground receiving stations will be deployed for the direct downlink and archiving of imagery data:
When satellite operations begin, four ground receiving stations will be deployed for the direct downlink and archiving of imagery data:
* Two defence centres in France and Spain
* Two defence centres in France and Spain
* Two civil stations: one in Toulouse (France) and a polar station in Kiruna (Sweden), which will receive most of the data.
* Two civil stations: one in [[Toulouse]] (France) and a polar station in [[Kiruna]] ([[Sweden]]), which receives most of the data

Regional receiving stations (fixed or mobile) will subsequently be installed at the request of users.
Regional receiving stations (fixed or mobile) are subsequently installed at the request of users.


=== Uplink Stations ===
=== Uplink Stations ===
The Pléiades tasking plan will be refreshed and uploaded three times per day, allowing for last minute requests and the ability to utilize up-to-the-minute weather forecasts.<ref>"[http://www.spotimage.fr/automne_modules_files/standard/public/SM46_vo_pleiades.pdf Pléiades Responsive Stations]{{dead link|date=November 2017 |bot=InternetArchiveBot |fix-attempted=yes }}".</ref>
The Pléiades tasking plan are refreshed and uploaded three times per day, allowing for last minute requests and the ability to utilize up-to-the-minute weather forecasts.<ref>"[https://web.archive.org/web/20110807080605/http://www.spotimage.com/automne_modules_files/standard/public/SM46_vo_pleiades.pdf Pléiades Responsive Stations]"</ref>
* The [[Kerguelen Island]] station uploads the morning pass, over Europe, Africa and the Middle East.
* The [[Kerguelen Island]] station uploads the morning pass, over Europe, [[Africa]] and the [[Middle East]].
* The Swedish station takes care of midday orbits, over North and South Americas.
* The Swedish station takes care of midday orbits, over [[Americas|North and South Americas]].
* The French station transmits the last tasking plan of the day over Asia and Oceania.
* The French station transmits the last tasking plan of the day over [[Asia]] and [[Oceania]].

== Applications of VHR imagery ==

The Pléiades system is designed for a range of very-high-resolution (VHR, panchromatic: 50 cm), remote sensing applications. These include:
* Land planning: detection and identification of small features (e.g. vehicles, roads, bushes)
* Agriculture: land management and crop yields, location of crop diseases, tree count (palm trees, vineyards...)
* Defense: imagery-derived intelligence and tactical planning in urban/densely populated areas
* Homeland Security: mitigation, assistance in crisis events and post-crisis assessment (particularly earthquakes)
* Hydrology: topography and drainage basin gradient studies
* Forestry: illicit deforestation and management of forestry yields; REDD data qualification (sampling)
* Maritime and littoral surveillance: vessel reconnaissance and contamination (oil spill), harbor mapping
* Civil Engineering/Asset Monitoring: planning of road, rail and oil pipeline corridors
* 3D: flight simulators, high precision mapping, photovoltaic fields implantation...


== See also ==
== See also ==
{{Portal|Spaceflight}}
{{Portal|Spaceflight}}
* [[Geographic information system]] (GIS)
* [[GIS]]
* [[Remote sensing]]
* [[Remote sensing]]
* {{ill|Pléiades Neo|fr}}


== References ==
== References ==
{{Reflist}}
{{Reflist|30em}}


== External links ==
== External links ==
Line 200: Line 131:
* [http://smsc.cnes.fr/PLEIADES/index.htm CNES]
* [http://smsc.cnes.fr/PLEIADES/index.htm CNES]
* [http://space.skyrocket.de/doc_sdat/pleiades-h-1.htm Gunter's Space Page]
* [http://space.skyrocket.de/doc_sdat/pleiades-h-1.htm Gunter's Space Page]
*[https://directory.eoportal.org/web/eoportal/satellite-missions/p/pleiades eoportal.org]
* [https://directory.eoportal.org/web/eoportal/satellite-missions/p/pleiades eoportal.org]


{{Orbital launches in 2011}}
{{Orbital launches in 2011}}
{{Orbital launches in 2012}}
{{Orbital launches in 2012}}
{{Rest of the World Reconnaissance Satellites}}


[[Category:Reconnaissance satellites of France]]
[[Category:Reconnaissance satellites of France]]
Line 210: Line 142:
[[Category:Spacecraft launched in 2012]]
[[Category:Spacecraft launched in 2012]]
[[Category:Earth imaging satellites]]
[[Category:Earth imaging satellites]]
[[Category:Satellite constellations]]
[[Category:Twin satellites]]
[[Category:Military equipment introduced in the 2010s]]
[[Category:CNES]]

Latest revision as of 08:56, 2 December 2024

Pléiades-1A and Pléiades-1B
Pléiades satellite
Mission typeEarth observation/Reconnaissance
OperatorCNES
COSPAR ID1A: 2011-076F
1B: 2012-068A
SATCAT no.1A: 38012
1B: 39019
WebsiteCNES (Pléiades satellites)
Mission duration5 years (planned)
Spacecraft properties
BusAstrosat-1000
ManufacturerEADS Astrium Satellites
Launch mass970 kg (2,140 lb) (each)
Start of mission
Launch date1A: 02:03, 17 December 2011 (UTC) (2011-12-17T02:03Z)
1B: 02:02, 2 December 2012 (UTC) (2012-12-02T02:02Z)
RocketSoyuz ST-A / Fregat
Launch siteCentre Spatial Guyanais, ELS
Orbital parameters
Reference systemGeocentric orbit
RegimeSun-synchronous orbit
Altitude695 km (432 mi)
Inclination98.2°

The Pléiades constellation is composed of two very-high-resolution optical Earth-imaging satellites. Pléiades-1A and Pléiades-1B provide the coverage of Earth's surface with a repeat cycle of 26 days.[1] Designed as a dual civil/military system, Pléiades will meet the space imagery requirements of European defence as well as civil and commercial needs.

History

[edit]

The Pléiades system was designed under the French-Italian ORFEO Programme (Optical and Radar Federated Earth Observation) between 2001 and 2003.[2]

The Pléiades programme was launched in October 2003 with CNES (the French space agency) as the overall system prime contractor and EADS Astrium as the prime contractor for the space segment.

Spot Image is the official and exclusive worldwide distributor of Pléiades products and services under a delegated public service agreement.

Launches

[edit]

Technologies

[edit]

Orbit

[edit]

The two satellites operate in the same phased orbit and are offset at 180° to offer a daily revisit capability over any point on the globe. The Pléiades also share the same orbital plane as the SPOT 6 and 7, forming a larger constellation with 4 satellites, 90° apart from one another.[5]

  • Orbit: Sun-synchronous, phased, near-circular
  • Mean altitude: 695 km

Equipment

[edit]

Equipped with technologies like fibre-optic gyroscopes and control moment gyroscopes, Pléiades-HR 1A, and 1B offer roll, pitch, and yaw (slew) agility, enabling the system to maximize the number of acquisitions above a given area.

Agility for Responsive Tasking

[edit]

This agility coupled with particularly dynamic image acquisition programming make the Pléiades system very responsive to specific user requirements. Individual user requests was answered in record time, thanks to multiple programming plans per day and a state-of-the-art image processing chain. Performance at a glance:

  • Image acquisition anywhere within an 800-km-wide ground strip with 70 cm of resolution
  • Along-track stereo and tri-stereo image acquisition
  • Single-pass collection of mosaics (strip-mapping) with a footprint up to a square degree
  • Maximum theoretical acquisition capacity of 1,000,000 km2 per day and per satellite
  • Optimized daily acquisition capacity (taking into account genuine order book, weather constraints, conflicts...) reaching 300,000 km2 per day and per satellite

Products

[edit]
Resolution Panchromatic: 50 cm
Multispectral: 2 m
Pansharpened: 50 cm
Bundle: 50 cm PAN and 2 m MS
Footprint 20 km swath
Single pass mosaics up to 100 x 100 km

[6]

Ground receiving stations

[edit]

When satellite operations begin, four ground receiving stations will be deployed for the direct downlink and archiving of imagery data:

  • Two defence centres in France and Spain
  • Two civil stations: one in Toulouse (France) and a polar station in Kiruna (Sweden), which receives most of the data

Regional receiving stations (fixed or mobile) are subsequently installed at the request of users.

[edit]

The Pléiades tasking plan are refreshed and uploaded three times per day, allowing for last minute requests and the ability to utilize up-to-the-minute weather forecasts.[7]

See also

[edit]

References

[edit]
  1. ^ "Pléiades System CNES"
  2. ^ "Pléiades CNES Mag Archived 20 July 2011 at the Wayback Machine"
  3. ^ "Soyuz rocket blasts off from French Guiana". Reuters. 2 December 2012.
  4. ^ "Lancement Soyouz-ST-A VS04 / Pléiades-1B". forum-conquete-spatiale.fr.
  5. ^ "Pleiades eoPortal Directory". eoPortal. Retrieved 4 June 2015.
  6. ^ "Pléiades Products CNES"
  7. ^ "Pléiades Responsive Stations"
[edit]
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