Most Advanced Observation Satellite Launched

[HariPrasad]

India's most advanced commercial remote-sensing satellite is Cartosat-2B with a panchromatic resolution of less than 1m with a swath of only 9.6km. Not sure about the multispectral resolution.

China's most advanced commercial remote-sensing satellite is Gaofen-2 with a panchromatic resolution of 80cm and multispectral resolution of 3.2m with a swath of 48km.

INDIA has an all weather spy satellite with very high resolution. India launched 1 M resolution satellite way back in 2001.

 

[Beidou2020]

And Cartosat was launched way back in 2010! Don't tell me the camera and data transfer tech have improved only so much...
Let's stop this d*k measuring and discuss the technical/other aspect of this or any other satellite, without stepping on each others tails.

It's very easy to have very high resolution but have low swath.

What's important is high resolution in panchromatic and multispectral, swath and revisit time.

Next year China will have panchromatic resolution of less than 50cm.

Gaofen-3, Gaofen-4, Gaofen-5, Gaofen-6 and Gaofen-7 are all set to be launched by 2016.

INDIA has an all weather spy satellite with very high resolution. India launched 1 M resolution satellite way back in 2001.

Everyone has much more advanced spy satellites. China's Yaogan spy satellites are vastly more advanced than the Gaofen commercial satellites.

If India launched 1m satellite back in 2001, then early 15 years later it won't be still at 1m. It would be way ahead of that mark.

What you have to take into consideration are the following:
1. panchromatic resolution.
2. multispectral resolution.
3. swath width.
4. revisit time (number of days).

Some satellites have very low swath width but high PAN resolution but no multispectral resolution. Others have high revisit times.

 

[Kloitra]

It's very easy to have very high resolution but have low swath.

Actually having a high resolution is equally difficult. This is why you see all the struggle to bring resolution below 1m. The difficulty increases exponentially thereafter. Besides, if you can add different images, swath doesn't matter so much as the resolution - that is a limiting factor you can't overcome.

What's important is high resolution in panchromatic and multispectral, swath and revisit time.

Next year China will have panchromatic resolution of less than 50cm.

Gaofen-3, Gaofen-4, Gaofen-5, Gaofen-6 and Gaofen-7 are all set to be launched by 2016.

Good luck. Same for India, CARTOSAT3 is supposed to have a resolution of 25 cm and launch in 2017. Not sure if it will be multispectral.

 

[HariPrasad]

It's very easy to have very high resolution but have low swath.

What's important is high resolution in panchromatic and multispectral, swath and revisit time.

Next year China will have panchromatic resolution of less than 50cm.

Gaofen-3, Gaofen-4, Gaofen-5, Gaofen-6 and Gaofen-7 are all set to be launched by 2016.



Everyone has much more advanced spy satellites. China's Yaogan spy satellites are vastly more advanced than the Gaofen commercial satellites.

If India launched 1m satellite back in 2001, then early 15 years later it won't be still at 1m. It would be way ahead of that mark.

What you have to take into consideration are the following:
1. panchromatic resolution.
2. multispectral resolution.
3. swath width.
4. revisit time (number of days).

Some satellites have very low swath width but high PAN resolution but no multispectral resolution. Others have high revisit times.

Stop your fart. You guys are way behind us in satellite imaginary. Even your scientist accepts that. read here what your scientist have to say.

China still playing Catch Up in Satellite Imagery

So do not jump for something we achieved in 2001.

india has SAR sattellite having capabilty to see through clouds and in night.

 

[Beidou2020]

Actually having a high resolution is equally difficult. This is why you see all the struggle to bring resolution below 1m. The difficulty increases exponentially thereafter. Besides, if you can add different images, swath doesn't matter so much as the resolution - that is a limiting factor you can't overcome.



Good luck. Same for India, CARTOSAT3 is supposed to have a resolution of 25 cm and launch in 2017. Not sure if it will be multispectral.

Is cartosat-2b multispectral?

 

[Kloitra]

Is cartosat-2b multispectral?

No, it was not meant to be. Black and white. The next one would be black and white too.

 

[Beidou2020]

Stop your fart. You guys are way behind us in satellite imaginary. Even your scientist accepts that. read here what your scientist have to say.

China still playing Catch Up in Satellite Imagery

So do not jump for something we achieved in 2001.

Still catching up to the US in commercial remote sensing sats.
Gaofen-2 has already proved our capabilities.

Rumours says Yaogan spy sats are around 15cm. But its difficult to know for sure about spy sats as its secret.

No, it was not meant to be. Black and white. The next one would be black and white too.

Which Indian remote sensing sats are multispectral?
Resourcesat-2?

 

[HariPrasad]

Still catching up to the US in commercial remote sensing sats.
Gaofen-2 has already proved our capabilities.
Rumours says Yaogan spy sats are around 15cm. But its difficult to know for sure about spy sats as its secret.

Problem with you guys is that even chinese report or statement of prominent chinese scientist is not enough for you to stop your hype.

 

[Beidou2020]

Problem with you guys is that even chinese report or statement of prominent chinese scientist is not enough for you to stop your hype.

China is behind the US in commercial remote sensing.

Gaofen-2 has:
80cm Panchromatic resolution.
3.2m Multispectral resolution.
48km swath width.
Not sure about revisit time.

 

[Shardul.....the lion]

Congratulations tlo chinese nation...............


We should start a Indo-China international space station

 

[Kloitra]

Which Indian remote sensing sats are multispectral?
Resourcesat-2?

Yeah, and OCEANSAT.

 

[Nan Yang]

Stop your fart. You guys are way behind us in satellite imaginary. Even your scientist accepts that. read here what your scientist have to say.

China still playing Catch Up in Satellite Imagery

So do not jump for something we achieved in 2001.

india has SAR sattellite having capabilty to see through clouds and in night.

Here we go again.
Every time India makes a claim like that it is good to double check.
First of all I am not a rocket scientist but even I know that you cannot make a comparison just based on resolution. You must also check out the swath. The swath is the area of the image. You can always increased your resolution by compromising the swath. But when your swath becomes too small it become useless in many applications.



Here is the swath data for Indian Cartosat series of remote sensing satellites.


As you can see Cartosat-2 has a swath of only 9.6km.
By comparison Gao Fen 2 to be launch with the same resolution have a swath of 48km which is 5X larger.
India’s latest CARTOSAT-3 to be launch may have a resolution of 30 cm but with an even smaller 6 km swath.
India is basically compromising swath to get higher resolution.
Quote
GF-2 employs the CS-L3000A bus and is capable of producing images with a ground sampling distance of 80 centimeters in black and white, and 3.2 meters in color. Its images have a swath width of 48 kilometers.
Source
Chinese Long March 4B launches Gaofen-2 and BRITE-PL-2 | NASASpaceFlight.com
Furthermore Gaofen satellites are part of a global system to provide near real-time observations 24/7.

 

[Gijoe]

What a laugh, Indian called their black and white sat back in 2001 was the most high tech. US using it to track terrorist after 9/11. Hahaha lol because it free, US does not need to paid any penny. Beside, it is US tech anyway.

P.S I'm not chinese.

 

[Beidou2020]

Here we go again.
Every time India makes a claim like that it is good to double check.
First of all I am not a rocket scientist but even I know that you cannot make a comparison just based on resolution. You must also check out the swath. The swath is the area of the image. You can always increased your resolution by compromising the swath. But when your swath becomes too small it become useless in many applications.



Here is the swath data for Indian Cartosat series of remote sensing satellites.


As you can see Cartosat-2 has a swath of only 9.6km.
By comparison Gao Fen 2 to be launch with the same resolution have a swath of 48km which is 5X larger.
India’s latest CARTOSAT-3 to be launch may have a resolution of 30 cm but with an even smaller 6 km swath.
India is basically compromising swath to get higher resolution.
Quote
GF-2 employs the CS-L3000A bus and is capable of producing images with a ground sampling distance of 80 centimeters in black and white, and 3.2 meters in color. Its images have a swath width of 48 kilometers.
Source
Chinese Long March 4B launches Gaofen-2 and BRITE-PL-2 | NASASpaceFlight.com
Furthermore Gaofen satellites are part of a global system to provide near real-time observations 24/7. So for Cartosat satellite series to build up a 50km image it will take 20days.

You owned him!

 

[qwerrty]

Here we go again.
Every time India makes a claim like that it is good to double check.
First of all I am not a rocket scientist but even I know that you cannot make a comparison just based on resolution. You must also check out the swath. The swath is the area of the image. You can always increased your resolution by compromising the swath. But when your swath becomes too small it become useless in many applications.

Here is the swath data for Indian Cartosat series of remote sensing satellites.


As you can see Cartosat-2 has a swath of only 9.6km.
By comparison Gao Fen 2 to be launch with the same resolution have a swath of 48km which is 5X larger.
India’s latest CARTOSAT-3 to be launch may have a resolution of 30 cm but with an even smaller 6 km swath.
India is basically compromising swath to get higher resolution.
Quote
GF-2 employs the CS-L3000A bus and is capable of producing images with a ground sampling distance of 80 centimeters in black and white, and 3.2 meters in color. Its images have a swath width of 48 kilometers.
Source
Chinese Long March 4B launches Gaofen-2 and BRITE-PL-2 | NASASpaceFlight.com
Furthermore Gaofen satellites are part of a global system to provide near real-time observations 24/7. So for Cartosat satellite series to build up a 50km image it will take 20days.

at least they can brag they have shupadupa powah high res satellite, however practically useless. lol. by the time their satellite coming back for another scan the enemy already left the area hundreds of miles away