India's rover let-down by solar panels and batteries? No signal

RichA

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Sep 22, 2023, 8:10:43 PM9/22/23

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India has lots of plutonium. Canadian idiot politicians saw to that. Too bad no RTGs...

https://www.bbc.com/news/world-asia-india-66893924

StarDust

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Sep 23, 2023, 1:28:41 AM9/23/23

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On Friday, September 22, 2023 at 5:10:43 PM UTC-7, RichA wrote:
> India has lots of plutonium. Canadian idiot politicians saw to that. Too bad no RTGs...
>
> https://www.bbc.com/news/world-asia-india-66893924

I'm sure they have some back up system?

Chris L Peterson

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Sep 24, 2023, 2:20:31 PM9/24/23

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On Fri, 22 Sep 2023 17:10:40 -0700 (PDT), RichA <rande...@gmail.com>
wrote:

>India has lots of plutonium. Canadian idiot politicians saw to that. Too bad no RTGs...
>
>https://www.bbc.com/news/world-asia-india-66893924

No reason the panels should be a problem. And RTGs require the same
batteries.

W

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Sep 26, 2023, 8:54:09 AM9/26/23

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The RTGs would keep the batteries and other vulnerable parts warm enough.

W

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Sep 26, 2023, 9:00:50 AM9/26/23

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The mission was only planned to operate for the first lunar day.

Chris L Peterson

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Sep 26, 2023, 9:28:32 AM9/26/23

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On Tue, 26 Sep 2023 05:54:07 -0700 (PDT), W <wsne...@hotmail.com>
wrote:

The sort of batteries used these days are not damaged by cold. They
simply become inefficient at delivering power when cold. So in an
environment where they will naturally warm again, and a mission plan
that does not require major operations in the cold, there is no
problem.

W

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Sep 26, 2023, 10:15:32 AM9/26/23

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Nope. The temps encountered during the lunar night can wreck almost anything, including "the sort of batteries used these days."

There will not be enough "juice" in the batteries to keep other vulnerable parts warm enough.

Chris L Peterson

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Sep 26, 2023, 10:45:19 AM9/26/23

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On Tue, 26 Sep 2023 07:15:29 -0700 (PDT), W <wsne...@hotmail.com>
wrote:

As usual you have no idea what you are talking about. Cold damages
very little. There was almost certainly nothing in the craft that
would sustain permanent damage from those temperatures.

In any case, they had no option. Rich's hard-on for RTGs was not an
option, since launching them requires following a lot of international
treaty laws (fortunately!) which would have dramatically increased the
cost of the mission. And as the mission plan only required one
daylight operation cycle, the mission goals were achieved.

W

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Sep 26, 2023, 11:15:33 AM9/26/23

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On Tuesday, September 26, 2023 at 10:45:19 AM UTC-4, Chris L Peterson wrote:
> On Tue, 26 Sep 2023 07:15:29 -0700 (PDT), W <wsne...@hotmail.com>
> wrote:
> >On Tuesday, September 26, 2023 at 9:28:32?AM UTC-4, Chris L Peterson wrote:
> >> On Tue, 26 Sep 2023 05:54:07 -0700 (PDT), W <wsne...@hotmail.com>
> >> wrote:
> >> >On Sunday, September 24, 2023 at 2:20:31?PM UTC-4, Chris L Peterson wrote:
> >> >> On Fri, 22 Sep 2023 17:10:40 -0700 (PDT), RichA <rande...@gmail.com>
> >> >> wrote:
> >> >> >India has lots of plutonium. Canadian idiot politicians saw to that. Too bad no RTGs...
> >> >> >
> >> >> >https://www.bbc.com/news/world-asia-india-66893924
> >> >> No reason the panels should be a problem. And RTGs require the same
> >> >> batteries.
> >> >
> >> >The RTGs would keep the batteries and other vulnerable parts warm enough.
> >> The sort of batteries used these days are not damaged by cold. They
> >> simply become inefficient at delivering power when cold. So in an
> >> environment where they will naturally warm again, and a mission plan
> >> that does not require major operations in the cold, there is no
> >> problem.
> >
> >Nope. The temps encountered during the lunar night can wreck almost anything, including "the sort of batteries used these days."
> >
> >There will not be enough "juice" in the batteries to keep other vulnerable parts warm enough.
> As usual you have no idea what you are talking about. Cold damages
> very little. There was almost certainly nothing in the craft that
> would sustain permanent damage from those temperatures.

As ALWAYS you have no idea what you are talking about!

The Indian lander is no longer working. It used batteries and solar.

The Chinese equipment DID have radioisotope energy and survived the lunar night because of that.

You inability to use logic is quite evident. Your inability to understand facts is even more evident.

W

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Sep 26, 2023, 11:16:34 AM9/26/23

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On Friday, September 22, 2023 at 8:10:43 PM UTC-4, RichA wrote:
> India has lots of plutonium. Canadian idiot politicians saw to that. Too bad no RTGs...
>
> https://www.bbc.com/news/world-asia-india-66893924

It's time for you to respond to peterson, the village idiot.

palsing

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Sep 26, 2023, 12:42:50 PM9/26/23

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Apparently, this mission was not designed to survive the lunar night...

https://interestingengineering.com/innovation/isros-chandrayaan-3-confronts-cold-lunar-odds-heres-why

... and they "chose not to equip these robotic pioneers with the commonly used radioisotope heater units (RHUs)."

Chris L Peterson

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Sep 26, 2023, 12:51:18 PM9/26/23

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On Tue, 26 Sep 2023 08:15:30 -0700 (PDT), W <wsne...@hotmail.com>
wrote:

It wasn't intended to survive the night. By design.

Chris L Peterson

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Sep 26, 2023, 12:52:20 PM9/26/23

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On Tue, 26 Sep 2023 08:16:32 -0700 (PDT), W <wsne...@hotmail.com>
wrote:

>On Friday, September 22, 2023 at 8:10:43?PM UTC-4, RichA wrote:
>> India has lots of plutonium. Canadian idiot politicians saw to that. Too bad no RTGs...
>>
>> https://www.bbc.com/news/world-asia-india-66893924
>
>It's time for you to respond to peterson, the village idiot.

Glad to see you are now properly signing your comments.

W

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Sep 26, 2023, 2:25:27 PM9/26/23

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You quite obviously do not know how to read. It's your TITLE: "peterson, AKA the village idiot."

W

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Sep 26, 2023, 2:26:42 PM9/26/23

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You just used circular reasoning. That is to be expected from you.

W

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Sep 26, 2023, 2:34:01 PM9/26/23

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The mission planners did not "choose not to use" radioistopes, they could not AFFORD to.

palsing

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Sep 26, 2023, 5:14:21 PM9/26/23

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You are clearly making this up. From the article I referenced...

"... ISRO has remained silent on why Chandrayaan-3 lacks these heating elements"

You might be correct but then again, you might be incorrect.

Chris L Peterson

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Sep 26, 2023, 6:09:51 PM9/26/23

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On Tue, 26 Sep 2023 11:26:40 -0700 (PDT), W <wsne...@hotmail.com>
wrote:

You don't know what circular reasoning is, either.

W

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Sep 26, 2023, 6:40:50 PM9/26/23

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I recognize that you are using circular reasoning. You are unaware of what you are doing.

W

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Sep 26, 2023, 6:48:39 PM9/26/23

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It has been clear from the beginning that this mission was done on the cheap, even to the point of their bragging about it.

China spent only a little more on a properly-equipped spacecraft that worked far longer as a result.