Engineering:Indian Mini Satellite bus

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Short description: Satellite bus

Indian Mini Satellite (IMS) is a family of modular[1] mini satellite buses developed by the Indian Space Research Organisation (ISRO).[2][3]

Variants

Indian Mini Satellite (Variants)
Feature IMS-1[4][5][6]Template:Predatory open access publisher[7] IMS-2[6][8] IMS-3 (Planned IMS-2 Derivative)[9]
Launch Mass 100 kilograms (220 lb) 450 kilograms (990 lb) 450 kilograms (990 lb)
Maximum bus mass 70 kilograms (150 lb) 250 kilograms (550 lb) 250 kilograms (550 lb)
Payload mass 30 kilograms (66 lb) 200 kilograms (440 lb) 200 kilograms (440 lb)
Propellant 3.5 kilograms (7.7 lb) 21 kilograms (46 lb)
Design lifetime 2 years 5 years
Raw bus voltage 28-33 Volts 28-33 Volts 28-42 Volts
Solar Array Power 330 Watts (EOL) 675 Watts (EOL)
850 Watts (BOL) 		850 Watts (BOL)
Payload power 30 Watts (Continuous)
70 Watts (Duty Cycle) 		250 Watts (Continuous)
600 Watts (Duty Cycle) 		250 Watts (Continuous)
400 Watts (Duty Cycle)
Attitude Control 3-axis stabilized
Four Reaction Wheels
Single 1N thruster 		3-axis stabilized
Four Reaction Wheels
Mono-propellant RCS
Four 1N thrusters
Four 0.2N thrusters
Pointing Accuracy ±0.1° (3σ) (all axes) ± 0.1° (all axes) ± 0.1° (all axes)
SSR Storage 32 Gb 32 Gb (SDRAM)
256 Gb (Flash Memory) 		32 Gb (SDRAM)
256 Gb (Flash Memory)
Payload data storage ≤ 16 Gb ≤ 32 Gb
Downlink ≤ 8 Mbit/s DL rate ≤ 105 Mbit/s DL rate ≤ 160 Mbit/s DL rate
Missions IMS-1[10]
Youthsat[11]
Microsat-TD[12] 		SARAL[13]
ScatSat-1[14]
EMISAT[15]
HySIS

XPoSat (Planned)

IMS-1

See also

References

  1. ↑ "63rd International Astronautical Congress 2012 : 19th SYMPOSIUM ON SMALL SATELLITE MISSIONS (B4) : Generic Technologies for Small/Micro Platforms (6A)". http://www.iafastro.net/iac/archive/tree/IAC-12/B4/6A/IAC-12,B4,6A,4,x15289.brief.pdf. 
    - "SARAL - eoPortal Directory - Satellite Missions". https://directory.eoportal.org/web/eoportal/satellite-missions/s/saral. 
  2. ↑ "Archived copy". http://www.isro.org/newsletters/contents/nnrms/NNRMS%20Bulletin%202013.pdf. 
  3. ↑ Thyagarajan, K; Raghava Murthy, D.V.A. (3 June 2009). "Micro- and mini-satellites of ISRO—technology and applications". Acta Astronautica 65 (9,10): 1375–1382. doi:10.1016/j.actaastro.2009.03.050. Bibcode: 2009AcAau..65.1375T. 
  4. ↑ "IMS-1 - eoPortal Directory - Satellite Missions" (in en-US). https://directory.eoportal.org/web/eoportal/satellite-missions/i/ims-1. 
  5. ↑ "Interest Exploratory Note: Indian Mini Satellite-1 (IMS-1) Bus". 15 March 2022. https://www.nsilindia.co.in/sites/default/files/u1/IEN%20for%20IMS-1_0.pdf. 
  6. ↑ 6.0 6.1 "Small Satellites in Inclined Orbits to Increase Observation Capability Feasibility Analysis". International Journal of Pure and Applied Mathematics 118 (17): 273–288. 6 January 2018. https://acadpubl.eu/jsi/2018-118-16-17/articles/17/18.pdf. Retrieved 5 Nov 2018. 
  7. ↑ "Interest Exploratory Note Indian Mini Satellite-1 (IMS-1) Bus". 15 March 2022. https://www.nsilindia.co.in/sites/default/files/u1/IEN%20for%20IMS-1_0.pdf. 
  8. ↑ "SARAL - Satellite for Argos and AltiKa". https://mosdac.gov.in/Mycalval_new/docs/SARAL.pdf. 
  9. ↑ Annadurai, Mylswamy (22 January 2015). "Earth Observation & Small Satellite Systems, User Interaction Meet 2015". http://nrsc.gov.in/pdf/1.1.User%20Meet_NRSC_2015-01-21_Ver-2_Anna_durai.pdf. 
  10. ↑ "IMS-1 - ISRO". http://www.isro.gov.in/Spacecraft/ims-1. 
  11. ↑ "YouthSat (IMS 1A)". http://space.skyrocket.de/doc_sdat/youthsat.htm. 
  12. ↑ "Microsat". https://www.isro.gov.in/Spacecraft/microsat-0. 
  13. ↑ "SARAL - ISRO". http://www.isro.gov.in/Spacecraft/saral. 
    - "Old Faithful does it again". The Hindu. 2013-02-27. http://www.thehindu.com/opinion/editorial/old-faithful-does-it-again/article4456135.ece. 
  14. ↑ "SCATSat-1 (Scatterometer Satellite-1)". https://directory.eoportal.org/web/eoportal/satellite-missions/s/scatsat-1. 
  15. ↑ Krebs, Gunter. "EMISAT". Gunter's Space Page. http://space.skyrocket.de/doc_sdat/emisat.htm. 




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