PSLV-C55: Difference between revisions

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{{Short description|Indian satellite launch mission}}
{{Short description|Indian satellite launch mission}}
{{Multiple issues|
{{No footnotes|date=April 2023}}
{{One source|date=April 2023}}
}}
{{Infobox rocket launch
{{Infobox rocket launch
|name      = PSLV-C55
|name      = PSLV-C55
[[File:PSLV - C55 TeLEOS-2 Mission.webp|thumb|PSLV - C55 Standing on First Launch Pad.]]
|image=PSLV-C55, TeLEOS-2 - Launch vehicle lifting off from First Launch Pad (FLP) of SDSC-SHAR 03.webp
|caption=PSLV - C55 lifts off on First Launch Pad
|launch    = 22 April 2023 <br /> 08:49 ([[UTC]])
|launch    = 22 April 2023 <br /> 08:49 ([[UTC]])
|pad        = [[First Launch Pad]] [[Satish Dhawan Space Centre]]
|pad        = [[First Launch Pad]] [[Satish Dhawan Space Centre]]
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|previous  = [[PSLV-C54]]
|previous  = [[PSLV-C54]]
|next      = [[PSLV-C56]] }}
|next      = [[PSLV-C56]] }}
The '''PSLV-C55''' was the 57th mission of [[Indian Space Research Organisation|Indian Space Research Organisation's]] [[Polar Satellite Launch Vehicle]] (PSLV) and the 16th flight of the [[PSLV-CA]] variant.<ref name=":0">PSLV-C55/TeLEOS-2 Mission Brochure [https://www.isro.gov.in/media_isro/pdf/Missions/PSLVC55/PSLVC55TeLEOS.pdf#page=2 https://www.isro.gov.in/media_isro/pdf/Missions/PSLVC55/PSLVC55TeLEOS.pdf]</ref>
The '''PSLV-C55''' was the 57th mission of [[Indian Space Research Organisation|Indian Space Research Organisation's]] [[Polar Satellite Launch Vehicle]] (PSLV) and the 16th flight of the [[PSLV-CA]] variant. It successfully delivered the TeLEOS-2 and Lumelite-4 payloads to their intended orbits.
 
== Launch ==
It was launched on Saturday, 22 April 2023 at 14:19 IST / 08:49 UTC from [[Satish Dhawan Space Centre|Satish Dhawan Space Centre, Sriharikota]], Andhra Pradesh, India.<ref>{{Cite news |last=Kandavel |first=Sangeetha |date=2023-04-22 |title=ISRO PSLV-C55 successfully launches two Singapore satellites into orbit |language=en-IN |work=The Hindu |url=https://www.thehindu.com/sci-tech/science/isro-successfully-launches-pslv-c55-mission-carrying-two-singaporean-satellites/article66766469.ece |access-date=2023-04-22 |issn=0971-751X}}</ref><ref>{{Cite web |title=ISRO's PSLV-C55 lifts off with two Singaporean satellites, 7 Indian 'experiments' in textbook launch |url=https://www.indiatoday.in/science/story/isros-pslv-c55-launch-singapore-satellite-poem-space-mission-2363298-2023-04-22 |access-date=2023-08-24 |website=India Today |language=en}}</ref> This was a dedicated commercial mission through [[NewSpace India Limited|NSIL]] with [[TeLEOS-2]] as primary satellite and [[Lumelite-4]] as a co-passenger satellite weighing 741 kg and 16 kg respectively.<ref name=":0" /> Both satellites belong to Singapore.<ref>{{Cite web |date=2023-04-22 |title=PSLV C55 Launch Live Updates: Isro's PSLV-C55 successfully places two Singapore satellites into orbit |url=https://timesofindia.indiatimes.com/india/pslv-c55-launch-live-updates-isro-to-launch-two-singaporean-satellites-teleos-2-lumelite-4-from-sriharikot/liveblog/99685441.cms |access-date=2023-08-24 |website=The Times of India |language=en}}</ref>


==Mission overview ==
==Mission overview ==
The mission was a dedicated commerlaunch through [[NewSpace India Limited|NSIL]] with TeLEOS-2 as primary satellite and Lumelite-4 as a co-passenger satellite weighing 741&nbsp;kg and 16&nbsp;kg respectively.<ref name=":0">{{cite web |title=PSLV-C55/TeLEOS-2 Mission Brochure |url=https://www.isro.gov.in/media_isro/pdf/Missions/PSLVC55/PSLVC55TeLEOS.pdf#page=2 |website=isro.gov.in|access-date=2025-08-16}}</ref> Both satellites belong to Singapore.<ref>{{Cite web |date=2023-04-22 |title=PSLV C55 Launch Live Updates: Isro's PSLV-C55 successfully places two Singapore satellites into orbit |url=https://timesofindia.indiatimes.com/india/pslv-c55-launch-live-updates-isro-to-launch-two-singaporean-satellites-teleos-2-lumelite-4-from-sriharikot/liveblog/99685441.cms |access-date=2023-08-24 |website=The Times of India |language=en}}</ref>


Primary payload: [[TeLEOS-2]]
This also marks the third time that [[Polar Satellite Launch Vehicle#Fourth stage (PS4)|PS4]] is used after satellite separations as a platform for experiments. There are non-separable payloads mounted on MSA (multi-satellite adapter).<ref>{{Cite news |author=<!--none--> |date=2023-04-20 |title=PSLV-C55 mission: How ISRO will use spent PS4 |language=en-IN |work=The Hindu |url=https://www.thehindu.com/sci-tech/science/pslv-c55-mission-isro-to-carry-out-in-orbit-scientific-experiments-using-spent-ps4/article66758527.ece |access-date=2023-08-24 |issn=0971-751X}}</ref> Payloads are powered on by a command after all satellites are separated. The orbital platform will remain in the same orbit achieved at the end of PS4 tank passivation after the primary mission. It has an expected life of 1 month.<ref name=":0" />
 
Secondary payload: [[Lumelite-4]]
 
PSLV configuration: [[PSLV-CA]]


This also marks the third time that [[Polar Satellite Launch Vehicle#Fourth stage (PS4)|PS4]] is used after satellite separations as a platform for experiments. There are non-separable payloads mounted on MSA (multi-satellite adapter). <ref>{{Cite news |last=Bureau |first=The Hindu |date=2023-04-20 |title=PSLV-C55 mission: How ISRO will use spent PS4 |language=en-IN |work=The Hindu |url=https://www.thehindu.com/sci-tech/science/pslv-c55-mission-isro-to-carry-out-in-orbit-scientific-experiments-using-spent-ps4/article66758527.ece |access-date=2023-08-24 |issn=0971-751X}}</ref>Payloads are powered on by a command after all satellites are separated. The orbital platform will remain in the same orbit achieved at the end of PS4 tank passivation after the primary mission. It has an expected life of 1 month.<ref name=":0" />
As a part of POEM-2 (PSLV Orbital Experimental Module), there are seven experimental non-separable payloads:<ref name=":0" /><ref>{{Cite web |last=Graham |first=William |date=2023-04-22 |title=ISRO launches PSLV with Singaporean satellites |url=https://www.nasaspaceflight.com/2023/04/isro-to-launch-pslv-with-singaporean-satellites/ |access-date=2023-08-24 |website=NASASpaceFlight.com |language=en-US}}</ref>
 
As a part of POEM-2 (PSLV Orbital Experimental Module), there are seven experimental non-separable payloads: <ref name=":0" /><ref>{{Cite web |last=Graham |first=William |date=2023-04-22 |title=ISRO launches PSLV with Singaporean satellites |url=https://www.nasaspaceflight.com/2023/04/isro-to-launch-pslv-with-singaporean-satellites/ |access-date=2023-08-24 |website=NASASpaceFlight.com |language=en-US}}</ref>


* PiLOT (PSLV In orbitaL Obc and Thermals) OBC package from [[Indian Institute of Space Science and Technology|IIST]]
* PiLOT (PSLV In orbitaL Obc and Thermals) OBC package from [[Indian Institute of Space Science and Technology|IIST]]
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|104
|104
|}
|}
'''Propellant''': <ref name=":0" />
* ''Stage 1:'' [[Solid-fuel rocket|Composite Solid]] ([[Hydroxyl-terminated polybutadiene|HTBP]] based)
* ''Stage 2:'' [[Liquid fuel rocket|Earth Storable Liquid]] ([[Unsymmetrical dimethylhydrazine|UDMH]] + [[Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]])
* ''Stage 3:'' [[Solid-fuel rocket|Composite Solid]] ([[Hydroxyl-terminated polybutadiene|HTBP]] based)
* ''Stage 4:'' [[Liquid fuel rocket|Earth Storable Liquid]] ([[Monomethylhydrazine|MMH]] + [[Mixed oxides of nitrogen|MON3]])


==Vehicle Characteristics==
The PSLV C55 rocket has four stages; each one was self-contained, with its own [[Spacecraft propulsion|propulsion system]], thereby capable of functioning independently. The first and third stages used composite solid propellants, while the second and fourth stage use earth-storable liquid propellant.<ref name=":0" /> ''Stage 1'' is [[Solid-fuel rocket|Composite Solid]] employing ([[Hydroxyl-terminated polybutadiene|HTBP]] based) propellants. ''Stage 2'' is a [[Liquid fuel rocket|Earth Storable Liquid]] stage using ([[Unsymmetrical dimethylhydrazine|UDMH]] and [[Dinitrogen tetroxide|N<sub>2</sub>O<sub>4</sub>]]). ''Stage 3'' is a [[Solid-fuel rocket|Composite Solid]] stage using ([[Hydroxyl-terminated polybutadiene|HTBP]] based) propellants. ''Stage 4'' is a [[Liquid fuel rocket|Earth Storable Liquid]] upper stage fueled with ([[Monomethylhydrazine|MMH]] and [[Mixed oxides of nitrogen|MON3]]).<ref name="versions">{{cite web|url=http://www.earth2orbit.com/pdf/PSLV.PDF|title=India's PSLV|date=15 March 2009|website=www.earth2orbit.com |archive-url=https://web.archive.org/web/20110710163553/http://www.earth2orbit.com/pdf/PSLV.PDF|archive-date=10 July 2011|url-status=dead}}</ref>


The PSLV C55 rocket has four stages; each one was self-contained, with its own [[Spacecraft propulsion|propulsion system]], thereby capable of functioning independently. The first and third stages used composite solid propellants, while the second and fourth stage use earth-storable liquid propellant.
== Launch ==
It was launched on Saturday, 22 April 2023 at 14:19 IST / 08:49 UTC from [[Satish Dhawan Space Centre|Satish Dhawan Space Centre, Sriharikota]], Andhra Pradesh, India.<ref>{{Cite news |last=Kandavel |first=Sangeetha |date=2023-04-22 |title=ISRO PSLV-C55 successfully launches two Singapore satellites into orbit |language=en-IN |work=The Hindu |url=https://www.thehindu.com/sci-tech/science/isro-successfully-launches-pslv-c55-mission-carrying-two-singaporean-satellites/article66766469.ece |access-date=2023-04-22 |issn=0971-751X}}</ref><ref>{{Cite web |title=ISRO's PSLV-C55 lifts off with two Singaporean satellites, 7 Indian 'experiments' in textbook launch |url=https://www.indiatoday.in/science/story/isros-pslv-c55-launch-singapore-satellite-poem-space-mission-2363298-2023-04-22 |date=2023-04-22|access-date=2023-08-24 |website=India Today |language=en}}</ref>


== References ==
== References ==
{{reflist}}
{{reflist}}
{{Cite web | last=Surendra | first=Singh | date=2023-04-13 | title = With PSLV-C55 mission, Isro uses new rocket Integration|url= https://m.timesofindia.com/india/with-pslv-c55-mission-isro-uses-new-rocket-integration-technique-to-cut-time/articleshow/99446716.cms|access-date=2023-04-13 |website=Timesofindia |language=en}}


{{Cite web | last=Satish Dhawan| first=Space Centre| date=2023-04-17 | title = Registration for Launch View Gallery , PSLV-C55 Mission|url= https://lvg.shar.gov.in/VSCREGISTRATION/index.jsp |access-date=2023-04-17 |website=Satish dhawan space centre|language=en}}
==External links==
* {{Cite web | last=Surendra | first=Singh | date=2023-04-13 | title = With PSLV-C55 mission, Isro uses new rocket Integration|url= https://timesofindia.indiatimes.com/india/with-pslv-c55-mission-isro-uses-new-rocket-integration-technique-to-cut-time/articleshow/99446716.cms|access-date=2023-04-13 |website=Timesofindia |language=en}}
* {{Cite web | last=Satish Dhawan| first=Space Centre| date=2023-04-17 | title = Registration for Launch View Gallery, PSLV-C55 Mission|url= https://lvg.shar.gov.in/VSCREGISTRATION/index.jsp |access-date=2023-04-17 |website=Satish dhawan space centre|language=en}}


{{PSLV}}
{{PSLV}}


[[Category:Polar Satellite Launch Vehicle]]
[[Category:Polar Satellite Launch Vehicle]]
[[Category:Spacecraft launched by India in 2023]]
[[Category:April 2023 in India]]
[[Category:Rocket launches in 2023]]

Latest revision as of 23:58, 30 October 2025


Template:Infobox rocket launch The PSLV-C55 was the 57th mission of Indian Space Research Organisation's Polar Satellite Launch Vehicle (PSLV) and the 16th flight of the PSLV-CA variant. It successfully delivered the TeLEOS-2 and Lumelite-4 payloads to their intended orbits.

Mission overview[edit | edit source]

The mission was a dedicated commerlaunch through NSIL with TeLEOS-2 as primary satellite and Lumelite-4 as a co-passenger satellite weighing 741 kg and 16 kg respectively.[1] Both satellites belong to Singapore.[2]

This also marks the third time that PS4 is used after satellite separations as a platform for experiments. There are non-separable payloads mounted on MSA (multi-satellite adapter).[3] Payloads are powered on by a command after all satellites are separated. The orbital platform will remain in the same orbit achieved at the end of PS4 tank passivation after the primary mission. It has an expected life of 1 month.[1]

As a part of POEM-2 (PSLV Orbital Experimental Module), there are seven experimental non-separable payloads:[1][4]

  • PiLOT (PSLV In orbitaL Obc and Thermals) OBC package from IIST
  • OBC package from IIST
  • ARIS-2 (Advanced Retarding Potential analyser for Ionospheric Studies) experiment from IIST
  • HET based ARKA200 Electric Propulsion System from Bellatrix Aerospace
  • DSOD-3U and DSOD-6U deployer units along with DSOL-Transceiver in S- & X- bands from Dhruva Space
  • Starberry Sense Payload from Indian Institute of Astrophysics (IAP)
Mission Characteristics[1]
Parameter Orbit-1
Semi-Major Axis (km) 6964
Alt (km) 586
Eccentricity 0.0
Inclination (deg.) 10.00
Launch Pad FLP
Launch Azimuth (deg.) 104

Vehicle Characteristics[edit | edit source]

The PSLV C55 rocket has four stages; each one was self-contained, with its own propulsion system, thereby capable of functioning independently. The first and third stages used composite solid propellants, while the second and fourth stage use earth-storable liquid propellant.[1] Stage 1 is Composite Solid employing (HTBP based) propellants. Stage 2 is a Earth Storable Liquid stage using (UDMH and N2O4). Stage 3 is a Composite Solid stage using (HTBP based) propellants. Stage 4 is a Earth Storable Liquid upper stage fueled with (MMH and MON3).[5]

Launch[edit | edit source]

It was launched on Saturday, 22 April 2023 at 14:19 IST / 08:49 UTC from Satish Dhawan Space Centre, Sriharikota, Andhra Pradesh, India.[6][7]

References[edit | edit source]

  1. ↑ 1.0 1.1 1.2 1.3 1.4 "PSLV-C55/TeLEOS-2 Mission Brochure" (PDF). isro.gov.in. Retrieved 2025-08-16.
  2. ↑ "PSLV C55 Launch Live Updates: Isro's PSLV-C55 successfully places two Singapore satellites into orbit". The Times of India. 2023-04-22. Retrieved 2023-08-24.
  3. ↑ "PSLV-C55 mission: How ISRO will use spent PS4". The Hindu. 2023-04-20. ISSN 0971-751X. Retrieved 2023-08-24.
  4. ↑ Graham, William (2023-04-22). "ISRO launches PSLV with Singaporean satellites". NASASpaceFlight.com. Retrieved 2023-08-24.
  5. ↑ "India's PSLV" (PDF). www.earth2orbit.com. 15 March 2009. Archived from the original (PDF) on 10 July 2011.
  6. ↑ Kandavel, Sangeetha (2023-04-22). "ISRO PSLV-C55 successfully launches two Singapore satellites into orbit". The Hindu. ISSN 0971-751X. Retrieved 2023-04-22.
  7. ↑ "ISRO's PSLV-C55 lifts off with two Singaporean satellites, 7 Indian 'experiments' in textbook launch". India Today. 2023-04-22. Retrieved 2023-08-24.

External links[edit | edit source]

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