PS: I complained a little yesterday, and I feel a lot more relaxed today. The waist is not sore, the legs are not painful, the whole body is full of energy, and the words are like a spring.

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At the same time that Li Lan stepped onto the screen, the satellite launch center in the Surud Mountains was also making the most intense pre-launch preparations.

Mei Dang stood on the front line of command, he personally controlled every step, after the simulation missile was thoroughly prepared, the last step, the six simulated missiles in the satellite mother cabin also carried out the most difficult data docking. In the sky, three spy satellites are also in a state of readiness.

The three satellites will guide these simulated warheads, taking over the task of relay guidance and providing terminal guidance for the simulated missiles.

Li Lan's program began to be a signal, and the moment he appeared on TV, Mei Dang had already given the order to clear the field, and the 24-meter-long pseudo-ballistic missile stood in the center of the launch site, and the hoisting arm slowly released the missile, and slowly lay down in the groove where he was accommodated on the ground.

After the site was completely emptied, Maydang personally pressed the missile launch button.

Pseudoballistic missile launches produce tail flames, plumes, and columnar smoke. The solid rocket engine of the missile uses a low-temperature combustion agent of glycidyl azide polyether to reduce the temperature of the engine's tail flame, adds potassium salt to inhibit secondary combustion, reduces the concentration of CO2 and HO2 in the tail flame, uses foamed polymers to suppress smoke, uses additives to avoid the atmospheric window of infrared radiation, and sprays aerosols in the atmosphere above the launch site, so as to reduce the probability of detection by US missile early warning satellites.

Eighteen seconds later, the US space-based infrared system synchronous orbit early warning satellite detected the launch of a ballistic missile. Space-based infrared early warning satellites are more than 10 times more sensitive than DSP satellites and can observe through the atmosphere. However, considering that the missile uses a variety of infrared stealth techniques, it can reduce the infrared radiation of the atmospheric window, and it will lose its atmospheric cover only at an altitude of more than 10 kilometers when the air is thin. Therefore, it was determined that the satellite discovery time was delayed by 18 seconds.

Synchronous orbit early warning satellites carry both scanning and gaze infrared detectors, which are used for large-area detection and continuous monitoring of small areas, respectively. If the missile is launched in a maneuver and out of the range where the probe is likely to be monitored, it can delay its detection.

"Your Excellency, the early warning satellite has detected that an unknown type of ballistic missile has been launched eastward from Somalia, and the satellite is currently tracking the missile."

The U.S. Seventh Fleet, which was resting at Singapore's Changi Naval Base, quickly received a satellite warning, and Vice Admiral Bird, the 46th commander of the Blue Ridge, the flagship of the Seventh Fleet, immediately issued an order to respond: "Receive satellite analysis data and conduct orbital measurements simultaneously." ”

After 30 seconds, the early warning satellite completed the measurement of the missile's trajectory. When space-based infrared early warning satellites discover infrared radiation, they must first distinguish its wavelength range and characteristics according to its infrared characteristics, and then infer its temperature and even the type of propellant, so as to analyze and distinguish the type of target (such as ballistic missiles or launch vehicles). The vector velocity of the target is then measured. Due to the use of infrared detectors, the observed missile trajectory is a continuous point, so it is necessary to accumulate enough data to determine the target trajectory, the scanning infrared detector of the satellite scanning period is 1 second, claiming to be able to complete the missile trajectory measurement within 10 seconds.

However, to measure the trajectory of a ballistic missile with infrared equipment, two or three satellites must observe at different angles at the same time to obtain the trajectory in three-dimensional space, and a single satellite can only obtain a projection on a one-dimensional plane, and the observation data fused with other early warning satellites cannot be completed by the early warning satellite itself, and must be processed by the ground control station. Therefore, the trajectory of the missile obtained at this time lacks the ballistic height and inclination, and is only the velocity vector of the projection of the trajectory in the plane, not the real velocity vector of the missile, so it is impossible to predict the target of the missile.

After 38 seconds. The early warning satellite sends out a missile launch alert and transmits the signal to the joint tactical ground station in the theater, the overseas ground station in Australia, and the North American Air Defense and Space Defense Command and the US Space Command early warning center in the summer mountains of the United States for data fusion and processing. The three-dimensional space flight trajectory of the missile is obtained. The parabolic trajectory of a ballistic missile, the horizontal acceleration of which is the average of a cumulative data. A certain amount of time must accumulate before the orbit can be calculated, e.g. the engine thrust does not change. However, if the operating time is extended by 50%, the trajectory of the missile will inevitably be different, so the flight trajectory observed in 10 seconds alone is not enough to determine the landing point of the missile.

Moreover, modern ballistic missiles mostly use maneuvering orbit change techniques, and their final trajectory cannot be determined without waiting for the end of the active stage, so the real prediction of the missile's landing point will not be quickly obtained, and it will not be possible to raise an alarm to the troops in the theater.

"The unknown missile has turned on its second stage thruster, and the satellite continues to track it." This was a debriefing from inside the Guam Air Force Base.

As soon as the Somali missile was launched, it immediately attracted everyone's attention, and the people naturally did not know about it, but the five permanent members of the Security Council, which have ballistic missile early warning satellites, could not sit still.

The Americans, in particular, had launched the missile eastward, at an extremely fast speed, and in the blink of an eye, it had flown over most of the Indian Ocean, and the missile had not yet begun to slide down for the re-entry stage, and the first one had only fallen off in the third section of the advance.

Five minutes later, the missile's second-stage rocket engine was shut down and disengaged. The tracking accuracy of the space-based infrared early warning system is much higher than that of the National Defense Support Planning (DSP) satellites because it uses multiple satellites to gaze and track the booster section of the missile, and it can accurately give the parameters of the missile shutdown point, which is convenient for the calculation of the missile landing point.

Ten minutes later, the Joint Tactical Ground Station calculated the landing point of the first batch of missiles, which was located in the central Pacific Ocean, 2,000 kilometers east of the US military base in Guam.

Fifteen minutes later, the ground station fused and processed the data to obtain the missile's three-dimensional space flight trajectory.

Twenty minutes later, the missile slid 10 kilometers past the highest point of the trajectory, and the third-stage solid-liquid hybrid rocket engine ignited. The US military's geostationary-orbit missile early warning satellite detected the missile's ignition and tracked it. By adding a third-stage rocket engine, the pseudoballistic missile transforms the traditional parabolic trajectory into a jumping trajectory with multiple crests, reducing the altitude of the highest point of the trajectory, making it difficult for the interceptor system to calculate the final landing point of the missile before it re-enters the atmosphere. The missile defense system's prediction of the missile's trajectory is to limit the trajectory to a tubular zone, and in the process of the missile's flight, according to the known ballistic data, gradually reduce the radius of the predicted ballistic tubular zone, and intercept it when it is smaller than the maneuvering radius of the interceptor missile. The larger the amplitude of the ballistic jump, the larger the area of the tubular area, which will bring greater difficulties to the prediction of the defense system, thus greatly improving the missile's penetration capability.

Thirty minutes later, the synchronous orbit early warning satellite completed the measurement of the trajectory of the first batch of missiles in the first jump.

This is the most tense moment, at this moment the position of the missile has come to the sky over Southeast Asia, before the missile enters the anti-atmosphere, it must be intercepted immediately, otherwise it will become extremely difficult to intercept a warhead with a gravitational acceleration of more than 14 times the speed of sound. Even if it is the standard three that the US military claims to be extremely good for terminal interception.

At the Quad summit, it was 7 a.m. Somali time, and in Washington it was 11 p.m. yesterday. At this moment, we are in the second round of the heads of state consultations, and after almost an hour of discussions, there is still no answer that can satisfy the four heads of state.

And now, as soon as the second round of consultations began, they could no longer continue the discussion.

First of all, Li Lan appeared on the Somali national television station, sitting in front of the four of them, Li Lan's eyes were always vaguely revealing confidence, which made the four of them very uncomfortable. And what he said made the four of them feel inexplicably angry.

However, the emergency message that Obama received from the Department of Defense immediately made everyone break out in a cold sweat, if it weren't for the fact that the missile was launched eastward, combined with the news revealed by Somalia before, Obama even had an impulse to urgently implement the nuclear counterattack plan.

On television at this time, Li Lan also said at the right time: "Today, our Strategic Missile Forces will conduct a test launch, and as I said earlier, we will not be the first to use weapons of mass destruction. Whether it is a friend or an enemy, there is no need to worry, the thing on the missile is a simulated warhead, and this test launch is only to test the range and sub-warhead performance of our first strategic ballistic missile. ”

In Zhongnanhai, the capital of China, the No. 1 chief, who was having lunch, was also watching the live broadcast of Somali state television broadcast by China Central Television, and in his hand, the Chinese Ministry of Defense had submitted a report on the launch of missiles from Somalia. When he heard Li Lan say this, he couldn't help but put down his chopsticks while eating, and sighed: "It's a pity that Li Lan doesn't act, this talent is more than enough to win the actor." It is estimated that the United States is now very frightened, and I wonder if it will intercept it? ”

In the end, Obama did not give the order to intercept, because he knew very well that Li Lan had already known that the United States was going to launch a nuclear strike on Somalia, combined with Li Lan's words on TV, this time the missile launch was to tell Obama, don't mess around, I am not easy to mess with.

Such a clear signal, Obama can naturally understand.

In the next report of the Ministry of Defense, three things can already be determined, and the missile being launched is the same shape as the three missiles photographed by the drone yesterday. The missile's range can be fired from Somalia directly to the central Pacific Ocean, and the range is already more than 12,000 kilometers. After the thrusters in the last section of the missile began to fall off, the six sub-guided warheads were successfully withstood the friction of the atmosphere, and the six warheads dispersed and pierced the bottom of the central Pacific Ocean. This shows that Somalia has mastered the capability of a split-guided warhead.

Combined with these three explanations, Obama can no longer ignore that Li Lan does have the ability to directly attack the US mainland. (To be continued......)