Bangladesh Satellite-1

{{Short description|First Bangladeshi geostationary communications satellite}}

{{EngvarB|date=April 2017}}

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

{{Infobox spaceflight

| name = Bangladesh-1

| image = Bangabandhu Satellite-1 Mission (42025499722).jpg

| image_caption = Launch of Bangladesh-1

| image_alt =

| image_size =

| mission_type = Communications and Broadcasting Satellite

| operator = Bangladesh Communication Satellite Company Limited

| Harvard_designation =

| COSPAR_ID =

| SATCAT =

| website = {{URL|http://www.bscl.gov.bd/|Bangladesh Satellite Company Limited, BSCL}}, {{URL|http://www.btrc.gov.bd/bangabandhu-satellite-project|Bangladesh Satellite Project}}

| mission_duration = 15 years

| distance_travelled =

| orbits_completed =

| suborbital_range =

| suborbital_apogee =

| spacecraft =

| spacecraft_type =

| spacecraft_bus = Spacebus-4000B2

| manufacturer = Thales Alenia Space

| launch_mass = ~{{convert|3709|kg|lb|abbr=on}}

| BOL_mass =

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| dimensions =

| power = 6kW

| launch_date = 12 May 2018, 20:14 UTC{{cite web|url=https://www.cbsnews.com/news/spacex-readies-first-block-5-falcon-9-for-launch-today-2018-05-10/|title=SpaceX launch of first "block 5" Falcon 9 rocket scrubbed to Friday|website=CBS News |date=10 May 2018 |archive-url=https://web.archive.org/web/20180510193746/https://www.cbsnews.com/news/spacex-readies-first-block-5-falcon-9-for-launch-today-2018-05-10/ |access-date=12 May 2018|archive-date=10 May 2018 }}

| launch_rocket = Falcon 9 Block 5 (B1046.1)

| launch_site = KSC LC-39A

| launch_contractor = SpaceX

| deployment_from =

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| entered_service =

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| orbit_reference =

| orbit_regime = Geostationary

| orbit_longitude = 119.1°E

| orbit_slot =

| orbit_semimajor =

| orbit_eccentricity =

| orbit_periapsis = 35789.3 km

| orbit_apoapsis = 35798.5 km

| orbit_inclination =

| orbit_period = 1,436.1 minutes

| orbit_RAAN =

| orbit_arg_periapsis =

| orbit_mean_anomaly =

| orbit_mean_motion =

| orbit_repeat =

| orbit_velocity = 3.07 km/s

| orbit_epoch = 6 June 2018

| orbit_rev_number =

| apsis = gee

| trans_band = 14 C band, 26 {{Ku band}}

| trans_frequency =

| trans_bandwidth = 36MHz

| trans_capacity =

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| trans_TWTA =

| trans_EIRP =

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| programme =

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| insignia =

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}}

The Bangladesh Satellite-1 (BS-1){{cite news |title=Bangabandhu Satellite-1 now Bangladesh-1 |url=https://www.thedailystar.net/news/bangladesh/news/bangabandhu-satellite-1-now-bangladesh-1-3838656|access-date=6 March 2025 |work=The Daily Star |date=4 March 2025 |archive-url=https://web.archive.org/web/20250411204251/https://www.thedailystar.net/news/bangladesh/news/bangabandhu-satellite-1-now-bangladesh-1-3838656 |archive-date=11 April 2025 |language=en}} formerly known as Bangabandhu Satellite-1 (BS-1) is the first Bangladeshi geostationary communications and broadcasting satellite. It was manufactured by Thales Alenia Space and launched on 12 May 2018 from Kennedy Space Center, USA. The satellite was the first payload launched by a SpaceX Falcon 9 Block 5 launch vehicle.{{Cite news|url=https://www.thedailystar.net/science/space-science/bangabandhu-1-first-bangladesh-bd-communications-satellite-launch-spacex-falcon-9-block-5-most-powerful-rocket-primed-future-crewed-missions-1575712|title=SpaceX launches Bangabandhu-1 with most powerful Falcon 9 rocket|date=13 May 2018|work=The Daily Star|access-date=19 May 2018|language=en}} With the launch, Bangladesh became the 57th country to independently operate a satellite in space.{{Cite web |date=2021-03-26 |title=What milestones have Bangladesh crossed in 50 years |url=https://cri.org.bd/2021/03/26/what-milestones-have-bangladesh-crossed-in-50-years/ |access-date=2023-08-18 |website=Centre for Research and Information |language=en-US}}

Background and history

The project is being implemented by Bangladesh Telecommunication Regulatory Commission (BTRC) in 2008 working hand-in-hand with US-based Space Partnership International, LLC - until 2025, when it was changed by the Interim Government of Bangladesh. The government-owned Bangladesh Satellite Company Limited, BSCL (Formerly known as Bangladesh Communication Satellite Company Limited, BCSCL) was formed with the aim of operating the satellite.{{Cite web|url=https://www.bscl.com.bd|title=Official Website of Bangabandhu Satellite -1 Operator Company : Bangladesh Satellite Company Limited, BSCL|date=3 March 2018|access-date=28 May 2018|archive-url=https://web.archive.org/web/20180528081258/http://www.bscl.com.bd/|archive-date=28 May 2018|url-status=dead}}

The satellite expands Ku-band and C-band coverage over all of Bangladesh and its nearby waters including the Bay of Bengal, Nepal, Bhutan, Sri Lanka, the Philippines, eastern Indian states (West Bengal, Assam, Meghalaya, Mizoram, Tripura, Nagaland, Arunachal Pradesh) and Indonesia.

Bangladesh Satellite-1{{cite news |title='Bangabandhu Satellite-1' to be renamed as 'Bangladesh Satellite-1' |url=https://www.tbsnews.net/bangladesh/bangabandhu-satellite-1-be-renamed-bangladesh-satellite-1-1071476|access-date=19 February 2025 |work=The Business Standard |date=18 February 2025 |archive-url=https://web.archive.org/web/20250218092125/https://www.tbsnews.net/bangladesh/bangabandhu-satellite-1-be-renamed-bangladesh-satellite-1-1071476 |archive-date=18 February 2025 |language=en}} (BS-1) was initially planned to be launched on an Arianespace Ariane 5 ECA rocket on 16 December 2017 to celebrate the Victory day of Bangladesh. Following the lack of firm guarantee from Arianespace for that date, BTRC instead chose the Falcon 9 launch vehicle.{{cite web|url=http://spacenews.com/how-bangladesh-became-spacexs-first-block-5-falcon-9-customer/|title=How Bangladesh became SpaceX's first Block 5 Falcon 9 customer |website=SpaceNews.com|date=9 May 2018|access-date=19 May 2018|language=en-US}} The satellite is now located at the 119.1° East longitude geostationary slot.

After the fall of the Sheikh Hasina led Awami League government, Bangabandhu Satellite-1 was renamed to Bangladesh Satellite-1.{{cite news |script-title=bn:বঙ্গবন্ধু স্যাটেলাইটের নতুন নাম বাংলাদেশ স্যাটেলাইট-১ |trans-title=The new name of Bangabandhu Satellite is Bangladesh Satellite-1|url=https://www.dailyjanakantha.com/national/news/778437|access-date=3 March 2025 |work=Daily Janakantha |date=3 March 2025 |archive-url=https://web.archive.org/web/20250303101417/https://www.dailyjanakantha.com/national/news/778437 |archive-date=3 March 2025 |language=bn}}{{cite news |title='Bangabandhu Satellite-1' renamed 'Bangladesh Satellite-1' |url=https://www.tbsnews.net/bangladesh/bangabandhu-satellite-1-renamed-bangladesh-satellite-1-1083356 |access-date=3 March 2025 |work=The Business Standard |date=3 March 2025 |language=en}}

Construction

Bangladesh-1 was designed and manufactured by Thales Alenia Space. The total cost of the satellite was projected to be 248 million US dollars in 2015 (Tk 19.51 billion), financed via a $188.7 million loan from HSBC Holdings plc.{{cite news|url=https://asia.nikkei.com/Economy/Bangladesh-to-join-space-age-amid-skepticism-about-costs|title=Bangladesh to join space age amid skepticism about costs|last=Mahmud|first=Faisal|date=12 May 2018|newspaper=Nikkei Asian Review|quote=The government borrowed 157.5 million euros ($188.7 million) from HSBC Holdings to finance the satellite.}} The satellite carries a total of 40 Ku-band and C-band transponders with a capacity of 1600 megahertz and a predicted life span to exceed 15 years.{{cite web|url=http://www.thedailystar.net/science/space-science/bangabandhu-satellite-deal-inked-french-firm-170728 |access-date=11 November 2015|title=Bangabandhu satellite deal inked with French firm|date=11 November 2015 }}{{cite web|url=http://www.en.ntvbd.com/bangladesh/12309/Bangabandhu-satellite-equipment-purchase-deal-signed|access-date=11 November 2015|title=Bangabandhu-satellite-equipment-purchase-deal-signed|archive-date=6 August 2016|archive-url=https://web.archive.org/web/20160806180021/http://www.en.ntvbd.com/bangladesh/12309/Bangabandhu-satellite-equipment-purchase-deal-signed|url-status=dead}}{{cite web |url=http://www.en.banglanews24.com/fullnews/bn/117264.html |access-date=11 November 2015 |title=BTRC-Thales Alenia deal over Bangabandhu Satellite signed |url-status=dead |archive-url=https://web.archive.org/web/20151115083014/http://www.en.banglanews24.com/fullnews/bn/117264.html |archive-date=15 November 2015 |df=dmy-all }}{{cite web|url=http://www.spacenews.com/bangladesh-taps-thales-alenia-space-to-build-first-telecom-satellite/ |access-date=11 November 2015|title=Bangladesh Taps Thales Alenia To Build 1st Telecom Satellite|date=11 November 2015 }}

Map of satellite's position

Launch

Bangladesh Satellite-1 was launched at 20:14 UTC on 12 May 2018, on a SpaceX Falcon 9 launch vehicle at the Kennedy Space Center, USA.{{cite web |url=http://space.skyrocket.de/doc_sdat/bangabandhu-1.htm |title=Bangabandhu 1 (BD 1) |work=Gunter's Space Page |first=Gunter |last=Krebs |access-date=22 November 2016}} It was the first payload to be launched using the new SpaceX Block 5 model of the rocket.{{Cite news|url=http://www.kosmonautix.cz/2018/03/priprava-na-block-5-probiha-na-nekolika-mistech/|title=Příprava na Block 5 probíhá na několika místech|date=15 March 2018|work=www.kosmonautix.cz|access-date=23 March 2018|language=cs-CZ}}{{cite web|url=https://www.pbs.org/newshour/science/watch-live-spacex-to-launch-bangabandhu-1-satellite-atop-block-5-the-most-powerful-falcon-9-rocket-to-date|title=SpaceX to launch Bangabandhu-1 satellite atop Block 5, the most powerful Falcon 9 rocket to date|publisher=PBS NewsHour|date=11 May 2018}}

The satellite was originally planned to launch on 10 May 2018, however the rocket triggered an automatic abort as it entered the startup phase of terminal count at T-58 seconds. The rocket launch was pushed back 24 hours, and it was finally launched on 11 May 2018.{{Cite web|url=https://www.nasaspaceflight.com/2018/05/bangabandhu-1-launch-spacexs-affordable-space/|title=Bangabandhu-1 successfully launched by first Block 5 Falcon 9 – SpaceX's goal of affordable access to space |website=NASASpaceFlight.com|date=11 May 2018 |language=en-US|access-date=19 May 2018}}

Operation

File:বঙ্গবন্ধু=১ স্যাটেলাইট প্রাইমারীগ্রাউন্ড কন্ট্রোল স্টেশন ২০১৯.jpg]]

The satellite uses ground control stations built by Thales Alenia Space with its partner Spectra primary ground station in Gazipur. Secondary ground station is at Betbunia, Rangamati{{cite news|title=Bangladesh receives test signal from Bangabandh u-1 satellite|url=https://bdnews24.com/bangladesh/2018/05/12/bangladesh-receives-test-signal-from-bangabandhu-1-satellite|access-date=12 May 2018|work=bdnews24.com}} The first test signal after launch was received by the operators on 12 May 2018.{{Cite news |script-title=bn:বঙ্গবন্ধু স্যাটেলাইটের সিগন্যাল পেয়েছে গাজীপুরের গ্রাউন্ড স্টেশন|url=https://www.banglatribune.com/c/323665/%E0%A6%AC%E0%A6%99%E0%A7%8D%E0%A6%97%E0%A6%AC%E0%A6%A8%E0%A7%8D%E0%A6%A7%E0%A7%81-%E0%A6%B8%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%9F%E0%A7%87%E0%A6%B2%E0%A6%BE%E0%A6%87%E0%A6%9F%E0%A7%87%E0%A6%B0-%E0%A6%B8%E0%A6%BF%E0%A6%97%E0%A6%A8%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B2-%E0%A6%AA%E0%A7%87%E0%A7%9F%E0%A7%87%E0%A6%9B%E0%A7%87-%E0%A6%97%E0%A6%BE%E0%A6%9C%E0%A7%80%E0%A6%AA%E0%A7%81%E0%A6%B0%E0%A7%87%E0%A6%B0|access-date=18 January 2021|work=Bangla Tribune|language=bn}}

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See also

References

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