Sentinel-2B

{{short description|European optical imaging satellite}}

{{Use British English|date=February 2017}}

{{Use dmy dates|date=March 2017}}

{{Infobox spaceflight

| name = Sentinel-2B

| image = Sentinel 2-IMG 5873-white (crop).jpg

| image_caption = Model of a Sentinel 2 satellite

| insignia =

| mission_type = Earth observation

| operator = European Space Agency (ESA)

| COSPAR_ID = 2017-013A

| SATCAT = 42063

| website = {{url|http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-2|Sentinel-2 (ESA)}}

| mission_duration = 7 years (planned){{cite web|url=http://esamultimedia.esa.int/docs/S2-Data_Sheet.pdf|title=Sentinel-2: The Operational Compernicus Optical High Resolution Land Mission|publisher=European Space Agency|date=2013|access-date=23 June 2015}}
{{time interval|7 March 2017 01:49:24|show=ymd|sep=,}} (elapsed)

| spacecraft_type = Sentinel-2

| spacecraft_bus =

| manufacturer = Airbus Defence and Space

| dry_mass = {{convert|1017|kg}}

| launch_mass = {{convert|1140|kg}}

| dimensions = {{convert|3.4|x|1.8|x|2.35|m}}

| power = 1700 watts

| launch_date = 7 March 2017, 01:49:24 UTC{{cite news|url=https://spaceflightnow.com/2017/03/07/environmental-sentinel-launched-from-french-guiana/ |title=Environmental sentinel launched from French Guiana|publisher=Spaceflight Now|first=Stephen|last=Clark|date=7 March 2017|access-date=9 March 2017}}

| launch_rocket = Vega (VV-09)

| launch_site = Kourou, SLV

| launch_contractor = Arianespace

| disposal_type =

| deactivated =

| last_contact =

| decay_date =

| orbit_reference = Geocentric orbit{{cite web|url=http://heavens-above.com/orbit.aspx?satid=42063|title=Sentinel 2B - Orbit|publisher=Heavens-Above|date=9 March 2017|access-date=9 March 2017}}

| orbit_regime = Low Earth orbit

| orbit_altitude = 780 km

| orbit_inclination = 98.56°

| orbit_period = 100.45 minutes

| apsis = gee

| instruments = Multi-Spectral Imager (MSI)

| trans_band = S-band (TT&C support),
X-band and optical laser through European Data Relay System (EDRS) (data acquisition)

| trans_bandwidth = 64 kbit/s upload (S-band),
128 kbit/s - 2 Mbit/s download
(S-band),
520 Mbit/s download
(X-band / Optical)

| programme = Sentinel-2

| previous_mission = Sentinel-2A

| next_mission = Sentinel-2C

}}

Sentinel-2B is a European optical imaging satellite that was launched on 7 March 2017. It is the second Sentinel-2 satellite launched as part of the European Space Agency's Copernicus Programme, and with its orbit phased 180° against its sister satellite, Sentinel-2A. The satellite carries a wide swath high-resolution multispectral imager with 13 spectral bands. It provides information for agriculture and forestry, among other services, allowing for prediction of crop yields.{{cite web |url=http://www.esa.int/Our_Activities/Observing_the_Earth/Copernicus/Sentinel-2/Sentinel-2B_launch_preparations_off_to_a_flying_start|title=Sentinel-2B Launch Preparations Off to a Flying Start |publisher=European Space Agency|date=12 January 2017|access-date=10 March 2017}}