Busek Introduces New Hall Effect Thruster for GEO Satellites

Busek Introduces New Hall Effect Thruster for GEO Satellites

Busek, a company that is engaged in applied research, hardware development, and specialty manufacturing in space propulsion emphasizing electric propulsion, power electronics, and material science has introduced a new Hall Effect thruster for geostationary orbit satellites.

Busek’s BHT-1500 is a 2kW-class Hall Effect thruster with an innovative center-mounted cathode. Using novel design features like a two-piece “composite” anode and shortened dielectric channel, the BHT-1500 stands apart from other SPT designs. 

Operation with the internally mounted cathode confers a number of advantages, including improved performance, reduced sensitivity of performance to cathode flow rate, and more efficient cathode-plume coupling. In addition, the thruster is less sensitive to vacuum facility background pressure and exhibits less plume divergence. 

Thruster Performance

The life of the thruster extends well beyond the typical needs of GEO satellites and Busek’s design minimizes erosion via the use of a virtual magnetic field wall. The BHT-1500 thruster system operates in two modes; orbit-raising mode producing over 120 milliNewtons (mN) of thrust with 1,700 seconds total specific impulse (Isp) at 1,800 Watts (W) of power, and station-keeping mode producing more than 100 mN thrust and 1,900 seconds Isp.

Krypton Performance

Thruster testing was performed at Busek’s T8 facility to determine performance and operating efficiency with krypton propellant. The use of krypton increased specific impulse by approximately 140-190 s at equivalent power and voltage, but decrease total efficiency by 7% to 8%. The thruster can also be operated with Xenon and Iodine propellants.

The BHT-1500 offers class-leading efficiency over a huge range of throttle points. With plenty of thermal and magnetic margin for operation at high powers, this thruster is a flexible workhorse for small to medium-class satellites.

Click here to learn more about Busek's BHT-1500 Hall Effect thruster.

Click here to view other Hall Effect Thrusters and Monopropellant Thrusters from Busek.

Publisher: SatNow


  • Country: United States
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GNSS Constellations - A list of all GNSS satellites by constellations


Satellite NameOrbit Date
BeiDou-3 G4Geostationary Orbit (GEO)17 May, 2023
BeiDou-3 G2Geostationary Orbit (GEO)09 Mar, 2020
Compass-IGSO7Inclined Geosynchronous Orbit (IGSO)09 Feb, 2020
BeiDou-3 M19Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M20Medium Earth Orbit (MEO)16 Dec, 2019
BeiDou-3 M21Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 M22Medium Earth Orbit (MEO)23 Nov, 2019
BeiDou-3 I3Inclined Geosynchronous Orbit (IGSO)04 Nov, 2019
BeiDou-3 M23Medium Earth Orbit (MEO)22 Sep, 2019
BeiDou-3 M24Medium Earth Orbit (MEO)22 Sep, 2019


Satellite NameOrbit Date
GSAT0223MEO - Near-Circular05 Dec, 2021
GSAT0224MEO - Near-Circular05 Dec, 2021
GSAT0219MEO - Near-Circular25 Jul, 2018
GSAT0220MEO - Near-Circular25 Jul, 2018
GSAT0221MEO - Near-Circular25 Jul, 2018
GSAT0222MEO - Near-Circular25 Jul, 2018
GSAT0215MEO - Near-Circular12 Dec, 2017
GSAT0216MEO - Near-Circular12 Dec, 2017
GSAT0217MEO - Near-Circular12 Dec, 2017
GSAT0218MEO - Near-Circular12 Dec, 2017


Satellite NameOrbit Date
Kosmos 2569--07 Aug, 2023
Kosmos 2564--28 Nov, 2022
Kosmos 2559--10 Oct, 2022
Kosmos 2557--07 Jul, 2022
Kosmos 2547--25 Oct, 2020
Kosmos 2545--16 Mar, 2020
Kosmos 2544--11 Dec, 2019
Kosmos 2534--27 May, 2019
Kosmos 2529--03 Nov, 2018
Kosmos 2527--16 Jun, 2018


Satellite NameOrbit Date
Navstar 82Medium Earth Orbit19 Jan, 2023
Navstar 81Medium Earth Orbit17 Jun, 2021
Navstar 78Medium Earth Orbit22 Aug, 2019
Navstar 77Medium Earth Orbit23 Dec, 2018
Navstar 76Medium Earth Orbit05 Feb, 2016
Navstar 75Medium Earth Orbit31 Oct, 2015
Navstar 74Medium Earth Orbit15 Jul, 2015
Navstar 73Medium Earth Orbit25 Mar, 2015
Navstar 72Medium Earth Orbit29 Oct, 2014
Navstar 71Medium Earth Orbit02 Aug, 2014


Satellite NameOrbit Date
NVS-01Geostationary Orbit (GEO)29 May, 2023
IRNSS-1IInclined Geosynchronous Orbit (IGSO)12 Apr, 2018
IRNSS-1HSub Geosynchronous Transfer Orbit (Sub-GTO)31 Aug, 2017
IRNSS-1GGeostationary Orbit (GEO)28 Apr, 2016
IRNSS-1FGeostationary Orbit (GEO)10 Mar, 2016
IRNSS-1EGeosynchronous Orbit (IGSO)20 Jan, 2016
IRNSS-1DInclined Geosynchronous Orbit (IGSO)28 Mar, 2015
IRNSS-1CGeostationary Orbit (GEO)16 Oct, 2014
IRNSS-1BInclined Geosynchronous Orbit (IGSO)04 Apr, 2014
IRNSS-1AInclined Geosynchronous Orbit (IGSO)01 Jul, 2013