Bharat Rakshak

SaiK

UlanBatori wrote: Opens the possibility that there was an error in this final upload... lets see.

What kind of error UBji?

SaiK

everyone wants ISRO's data now

https://www.washingtonpost.com/technolo ... edirect=on

SaiK

^calling malloos to correct translation.

this sounds poetic!

The absence of a lander in the fall is proof that it has lost control of the Moon.

SaiK

We still have no actual data shared after the signal loss. ISRO only said it has identified, which I assume is the orbiter shot, and we know it is still in one piece. NASA (per that article) says they will share both before and after pics...if both pics remains same with some markers, then there is ...

SaiK

..but taken with special Raa camera whose resolution cannot be revealed. obfuscation is possible :).. and we can reduce the resolution as well! :) in another discussion, I was joking we landed on a pond and got drowned. :) water proved in one shot! So present test should be considered as just that:...

SaiK

The NASA/JPL Horizons trajectory of the Vikram has been updated with the predicted descent trajectory . Those who are interested can now compare directly the observed radiotelescope Doppler curve type with predictions.. ityadi. ..If there is interest, I may post some probable path of CY2 and Vikram...

SaiK

It is okay.. Let's only discuss about those 1% genuine nationalistic and their success. Rest 99% are horror anyway, and goes OT quite often unless it is all about feedbacks for handling failures.

SaiK

UlanBatori wrote: So the one lesson is that b4 any human-carrying flight there have to be MANY flights, damn the cost.

108++

SaiK

amber ji, wouldn't be mid day for at least 7 earth days on moon?

SaiK

interesting UB ji, we could then assume comms failure can't be because of that sudden /extreme vibration due to some nozzle having too much fuel. [assuming we have fault tolerance is the comms bus]

SaiK

I am trying to first rule out the case earlier reported in ToILet. "Too much Thrust"!!..

if we have our navs and controls pucca, then too much thrust can't be on the ground is my best assumption

SaiK

SaiK

If the thrusters were too powerful, then it can't be our control system not fast enough to control the navigations. It can't be just the thrusters. [assume: 1/6th gravity means it requires faster controls]

SaiK

Another Q: What was the logic if it fails to find any pattern within given time?

SaiK

The small thrusters are 25 N ones should be enough for the 1/6th place. no? the weight of Vikram should be that much less. But then, we are assuming everything is intact per reports [no visuals we have seen yet]. --- another stupid question on pattern matching.. was this IR or pure visual range pat...

SaiK

India to spend a whopping $130 billion for military modernization in next 5-7 years

Read more at:
http://timesofindia.indiatimes.com/arti ... aign=cppst

SaiK

naasika jay pee yell investments and funding programs are way way big, and can't be compared at all.. we go by meager budget onree saar. they can afford hirree&phyrre. naasikaas invest like 100 times more for the same...so accept a phyrr

SaiK

100 m/ sec 2.1km to go.. fast braking period.. nothing heard. That is pretty fast to land w/ balloons(if) and cushions. I thought 59.8 m/sec. But it is very fast. Even if it is free fall from there the terminal velocity at impact would be like sqrt ( 2100*2*1.62 + 59.8**2) = 102m/sec or 360km/hr. O...

SaiK

100 m/ sec 2.1km to go.. fast braking period.. nothing heard.

That is pretty fast to land w/ balloons(if) and cushions.

SaiK

So it was the orbiter relaying then

SaiK

1. did we really lose signal at a low altitude [assuming there is a delta latency between vikram and byalaru receivers, and the received altitude is not an estimate]. 2. if not, then loss of signal could be crash landing. What I don't understand, if there is latency and actual data received, then it...

SaiK

^and they landed on moon with humans.

SaiK

"We thought one of the thrusters may have underperformed," said an Isro scientist. "But after some preliminary analysis, it looks like a thruster overperformed." https://timesofindia.indiatimes.com/india/extra-brake-thrust-may-have-sent-vikram-out-of-control-in-home-stretch/artic...

SaiK

Losing Vikram is not unbearable.. not able to know what happened is unbearable.

SaiK

UlanBatori wrote:..I assume that many of them were ISRO kids, there to watch their parents' work.

Yes. Kids were little disappointed and when Modi tried to cheer the elder kids, they were in still-shocked state. The TV wala did say, many of those kids were there because they won some competition.

SaiK

^I was thinking the same.. it flipped, and little time to recover.

SaiK

Trusting my eyesight and memory, the last I saw the telemetry data from the screen : Horizontal velocity 48.1 m/s Vertical velocity 59.8 m/s Downrange distance: 1.09 km Earth communication: OFF That's exactly what I recollect. https://forums.bharat-rakshak.com/viewtopic.php?f=3&t=7725&start...

SaiK

SaiK

Dilbu wrote:Is Vikram able to communicate with the orbiter? Does that mean that the lander is still intact?

It depends on what it communicated. Health check should reveal.

SaiK

MCDC/ test test test.. landing on Earth as many times with actual test vehicle. Not scaled down versions.

Just saying. It is expensive

SaiK

Typo. Sorry

SaiK

The key data we have now is it lost comms ar 2.7km altitude.

Something went wrong in decision phase to land.

SaiK

No saar. It should not disrupt communicating with the orbiter.

SaiK

Gagan wrote:If they get pictures, will they have the heart to release the pics?
It is like their baby, they nurtured it to this stage

The advice is go by science and technology. Not emotions.

SaiK

let's wait for the data analysts from ISRO to provide answers

SaiK

orbiter comms is on

SaiK

up to 2.1km altitude normal parfarmance

SaiK

last shot

SaiK

Katare wrote:Lets fire Dilbu and find a better replacement

stop

SaiK

modi wipes his glasses

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