You need to have 16 satellites in close orbit to have one hour slot, on LEO. Considering that a missile will need 20-25 minutes to reach its target the ship can be 20 km away from its last position.
Enough to get out from the search area of the warhead.
And about the jamability of space radars
View attachment 65708.
A ground radar accidentally blocked the space radar for a 1000 sqkm area, unintentionally.
What could happens if the radar purposefully jammed ?
Chinese system does not rely solely on RF space radar There is over the horizon radar, There is optical radar, there are synthetic aperture radar, etc, There is high flying UAV So it is robust and redundant and that is what they need for Check the Yaogan series satellites. I don't understand why people still question Chinese Ocean surveillance system capability. It would stupid of them to deploy ASBM if they cannot find their target. The system was IOC in 2011. It is now 2020 they have since launched hundred of new satellite averaging 20 satellite every years. there are roughly 340 Chinese satellite orbiting the earth now
They already show it up to the all the world to see here it is check it up for youself. Sofar "no comment" from US military intelligence. Still "unqualify people" are still sticking their head in the sand
From this indian guy
Naval vessels constantly emit electronic signals during their operation and these can be detected by the low earth satellites and can triangulate the position of the vessel. All these work in tandem to locate a target with high precision. The ELINT satellites can cover large area of the ocean while passing and give a coarse target position. The SAR and optical imaging satellites then pass over and give precise target information of the coarse estimates. To achieve this various satellites are launched and positioned in such a way as to detect and narrow down on the area of interest on the sea surface. In all it is believed the Yaogan series consists of 6 SAR satellites (Yaogan 1, 3, 6, 10, 13 and 18), 9 ELINT satellites in three triplets (Yaogan 9, 16 and 17) and 10 electro optic satellites (2, 4, 5, 7, 8, 11, 12, 14, 15, 19) beginning with the first Yaogon launch in 2006 to the latest in November 2013.
Some Chinese writers suggest that in the case of a war, the PLA can form a network of the SAR, ELINT and electro-optic satellites in orbit and enable to sweep a given area around Chinese waters once in less than 40 minutes enabling rapid target identification with precision. Together these network of satellites impart sophisticated ocean reconnaissance capabilities to track vessels like aircraft carriers and enhancing Chinese anti access and area denial capabilities in the South China Sea or the Taiwan Strait. In the event of a conflict over Taiwan the primary Chinese objective will be to dissuade the US from interdiction in support of Taiwan and keep the US Carrier Battle Groups out of their effective area of operation. The Taiwan crisis of 1995-96 is believed to have convinced the Chinese of the need to possess area denial capabilities for future conflicts. Identifying a moving carrier amid the vast, open seas and among