I have a question about Chandrayaan-3 finances?

[dunwich]

Good day,

I had  a question involving Chandrayaan-3 finances that I tought was interesting but I couldn't find it on the forum.

To send 1kg and land it softly on the moon roughly cost 1 kg
Peregrine Mission One had a payload of 90 kg and cost abouth $108M to land it at a cost of    ~$1.2M/kg  (example)


Chandrayaan-3, however has cost    $89M
But I'm unclear abouth the cargo/payload? Is it only it's 26 kg rover (if so ~$3.4M/kg)
Or is it the entire lander module of 1726 kg (+26kg of rover) (if so ~$50.8K/kg)

(the link to the Chandrayaan-3 wiki page)

Any toughts on this?
This cost apears to be incredibly low for soft landing.

[daedalus1]

The payload mass should be the important thing. And the cost should be that of the total craft plus launcher.

[dunwich]

For payload mass I have the following:


RAMBHA-LP has a mass of 1.3 kg source
ChaSTE has a mass of 2.5kg source
ILSA has a mass of 1.8kg source
SHAPE has a mass of 4.8kg source

APXS and LIBS are part of the rover (and are counted seperatly)
So 26kg(rover)+1.3kg+2.5kg+1.8+4.8kg=36.4 would come down to ~$2.44M/kg but those are just the science instruments and not the power source.

Would ~$2.44M/kg be closer to the real number?

[Dalhousie]

Chandrayaan-3 lander massed 1700 kg wet, so you have to look at the whole landed mass, not just the rover.

[daedalus1]

The cost/kg should be the instruments plus housekeeping,  not the delivery vehicle and it's fuel.