Questions tagged [pslv]
Questions about the ISRO PSLV (Polar Space Launch Vehicle) launch vehicle.
Where do the separated stages of ISRO Launch Vehicle Mark 3 (LVM3) end up?
ISRO Launch Vehicle Mark 3 (LVM3) is a three stage launch vehicle: First stage – S200 Boosters Second stage – L110 Third stage – C25 Where do each of these stages end up after a launch?
What are the advantages of air lit solid boosters in PSLV XL?
ISRO's PSLV-XL has 6 solid strap on boosters. In a typical flight profile 4 strap on boosters are lit on ground just before liftoff. The remaining two boosters are lift 25 seconds later in air. ...
Info needed on PSLV launch adaptors and configurations
I want to understand how satellites are accommodated in PSLV. I know about few configurations and adaptors that've been used in the past. Is there any document which gives detailed info on Multiple ...
What benefit do the aerodynamic stabilization "pods" on the PSLV-CA provide?
Whilst writing this answer about the PSLV, on this informative page about its Secondary Injection Thrust Vector Control system, this image (cropped) is displayed, showing that for the Core Alone ...
Why does the Indian PSLV rocket have tiny boosters?
I have noticed that the Indian rocket PSLV has tiny strap-on boosters attached to it on the sides at the bottom. Why would these be used instead of just using a larger first stage? Why is there an ...
Why are the nozzles on this rocket at an angle? [duplicate]
Why are the nozzles on this rocket (PSLV) at an angle?
What is the purpose of the pairs of cylinders on the interstage of PSLV?
In the following images, it can be seen that the interstage (separating the first stage PS1 and the second stage PS2) of the Indian Space Research Organisation's (ISRO) Polar Satellite Launch Vehicle (...
Optimal Trajectory for SLV in the last stage
I have developed an algorithm for SLV guidance using optimal control theory. I need a reference trajectory to verify my algorithm. The algorithm requires the initial position and velocity coordinates ...
Why does the PSLV first stage's exhaust plume turn to bluish at high altitude?
After few seconds, post liftoff(anywhere between 60s and 90s), the exhaust plume of PSLV turns into a bluish colour. This is quite evident in night launches than day launches(obviously because the ...
Why does PSLV use four stages to get to LEO, and why do they alternate solid, liquid, solid, liquid?
Is there a simple way to explain why ISRO's PSLV launch vehicle uses four stages to get to LEO, and why they alternate as follows: ...
help understanding this complicated structure that will deploy HySIS
This ISRO page for the HysYS spacecraft says: HysIS, the primary satellite of PSLV-C43 mission, weighing about 380 kg, is an earth observation satellite configured around ISRO’s Mini Satellite-2 (...
How close will the cubesats be when numerous of them are launched simultaneously?
Checking the onboard video of PSLV C43 gives a feel like the CubeSats are released in very proximity. Does this mean that these CubeSats will be orbiting in such very close proximity through out ...
Acceleration Profile of PSLV and GSLV
What is the way to find out the acceleration profiles of IRSO's GSLV and PSLV from launch until achieving orbit?
Why is ISRO's PSLV named "Polar"? Are there challenges for other inclinations?
The "P" in ISRO's PSLV stands for "Polar". Is there anything particularly "polar" about this launch vehicle, or is the use of the word in the name of the rocket more historical or for marketing ...
What are the falling parts in this ISRO rocket launch?
ISRO launched IRNSS-1I satellite yesterday using its versatile PSLV-XL. In the launch video (from 00:35 to 00:40), within five seconds of the launch, many large parts of the rocket are seen to be ...
How was it difficult for the PSLV to launch a record of 104 satellites?
Last year, ISRO launched 104 satellites successfully into orbit. People praised it as an 'astounding achievement'. Besides a more complicated-than-usual satellite deployment, what truly was ...
What does CLG INIT mean?
During India's PSLV-C35 launch on 26 September 2016, mission control's launch sequence events (stage separations, stage ignitions, etc.) included 'CLG INIT'. What does it mean?
Why is there a "coasting" phase in some space launches?
During the PSLV (India's Polar Satellite Launch Vehicle) C24 launch on 4 April 2014, once stage 3 (PS3) had burned out, it wasn't immediately jettisoned, but instead there was a coasting phase for ...
Why did ISRO require additional tracking ships in the South Pacific for its MOM mission?
ISRO (Indian Space Research Organisation) so far never before used additional marine vessels to help track their launch vehicles, as an extension to the Indian Deep Space Network (IDSN). So why did it ...
Was the ISRO Mars mission really scaled down?
This news-report writes to say India’s bid to explore Mars will be a scaled down affair with the space agency flying experimental payload of less than 15 kg as against 25kg planned originally Was ...
Can Indian PSLV take ISRO to Mars?
Is the Polar Satellite Launch Vehicle capable of taking a 1,350 kg orbiter from the Earth to Mars as this article states?