News update: PSLV-C44 launch successful + some known and unknown things



Launch Image


the ready rocket


Launch and onboard camera view of satellite separation

(Source: TOI
& nasaspaceflight forum)

ISRO's first mission of new year, PSLV-C44 launched its payload on Thursday- 11.37 pm from 1st Launch Pad at SDSC/SHAR. This was first flight of PSLV-DL version and 46th in total for PSLV rocket. This was the lowest orbit insertion by ISRO to date. After Microsat-R separation, PS-4 re-ignited and shut off twice before reaching designed circular orbit of altitude= 450 km. ISRO officials say that PS-4 will stay "alive" for 6 months (?).

Payload:
1. Microsat-R: DRDO imaging/reconnaissance satellite for military purposes, satellite separated at an altitude of 277 km, 740 kg weight,
2. Kalamsat: 10cm cubesat made by students, 1.2 kg weight, has solar panels (?).

My doubts:

1. when does PS-4 stage become useless? TOI report says 'in 6 months'...but how? battery power or solar energy (as suggested by TOI report, does a rocket stage really have solar panels?)?
2. some reports say that Kalamsat is powered by PS-4 batteries but the cubesat is said to have life of only 15 hours, so which one is true... 6 months or 15 hours?
3. does a 1.2 kg cubesat really have "solar panels" as TOI reports? if that is true...why will it remain operational for only 15 hours?
4. how can TOI report claim that, this is a "technology that can eventually reduce space debris"?

I think this is purely a case wrong reporting by TOI science editor.

My air/space craft & rocket model collection (part-5)


Hello guys, lets continue with next edition of my older blog entry titled "My air/space craft & rocket model collection (part-4)".

Today we are going to see my " Hasbro G.I. Joe Skystriker (F-14 Tomcat)" and some old (repeat) aircraft models collection. By "old" i mean, before they were modified in one way or another as you can see them again in my older posts.

1. Hasbro "G.I. Joe" "Skystriker" jet:






 I will explain that white "LCA tejas" prototype soon...

2. Maisto "Tailwinds" collection:





In addition with some made in china toys...







3. Two "New Ray- Sky Pilot" models with a made in china F-16:




4. Old (Test prototype) vs New (Operational) "LCA Tejas"







5. Aeroplane toy into "Saudia Airline"






My air/space craft & rocket model collection (part-4)


Hello guys, lets continue with next edition of my older blog entry titled "My air/space craft & rocket model collection (part-3)".

Today we are going to see my old (year 2006) attempts of making "SAAB 35 Draken" and "MiG-17". MiG failed miserably and Draken was somewhere between "average" and "not too bad". Unfortunately i have lost these two models and their status is unknown. They are probably, destroyed and in a heap of garbage somewhere. I miss you Draken.

1. Draken




This is my cousin 'Nikhil'








2. MiG-17





Space History: Old Newspaper Clip: First Delta IV launch


Hello guys, I will be showcasing here my old newspaper clipping of First Delta IV rocket launch.

Date: 20 Nov 2002
Newspaper: Unknown from India
Language: Marathi
Translation: America made successful inaugural launch of it's famous 'Delta-4' communication satellite carrying rocket from Cape Canaveral air force station on Wednesday night.


Launch Day: PSLV-C44- 24 Jan 2019, 11.10 pm onwards -watch live here


My air/space craft & rocket model collection (part-3)


Hello guys, lets continue with next edition of my older blog entry titled "My air/space craft & rocket model collection (part-2)".

Today we are going to see the space toys i have in my second home. The images below are from two locations inside my new home- decorative display shelf in bedroom and TV table in the hall.

(The following images are from my instgram account
please follow)



Apollo LEM with the Moon



Saturn V with Ariane 5 rocket


Apollo LEM, CSM, LRV, Space Shuttle, Mercury Redstone, Hubble, Mir station


F-35 with F-14 Tomcat