Share the QR code < / P > < p > with wechat scanning code to friends and circles of friends < / P > < p > < / P > < p > on January 14, local time on Thursday, American space exploration technology company SpaceX successfully launched its second orbit this year, put 105 microsatellites into orbit with multiple recycled boosters, and then successfully realized its tenth landing < p > the mission, named transporter-3, is SpaceX's third dedicated microsatellite carpool launch mission. It sends 105 microsatellites into polar orbit, that is, satellites orbit the earth over the polar regions. This orbit is favored by earth observation companies because it allows orbiting satellites to scan the whole planet every day < p > this launch is SpaceX's second orbital launch mission in 2022, and it is also the company's second mission launched from the space coast of Florida within one month. SpaceX has more launch plans this month, in line with the fast launch rhythm set last year < p > the transporter-3 mission marks the 10th successful launch and landing of the booster b1058. The booster was put into use for the first time in May 2020. At that time, it sent two NASA astronauts Bob Behnken and Doug Hurley to the international space station (ISS) to carry out the first manned test flight of the manned dragon spacecraft < p > after that flight, b1058 successively put SpaceX's satellite chain Internet satellite into orbit five times, launched the transporter-1 mission in January last year (SpaceX's first carpool launch), and launched the cargo dragon spacecraft to the space station in December 2020 < p > SpaceX first announced the microsatellite carpool launch plan in 2019, providing small satellite operators with the opportunity to launch satellites at a low price, and the cost of each launch is only US $1 million. So far, SpaceX's goal has been to launch carpool missions twice a year, but the success of the program has prompted speculation that the frequency of such launches may double < p > the transporter-3 mission was promoted by companies such as spaceflight and exolaunch, which helped small satellite customers book the perfect journey to space < p > in fact, this kind of mission works much like a bus trip with a determined route. When the company finds the opportunity to go into space, they can book it. Carpooling is an ideal launch mode for payloads that do not need to reach specific locations in space but are deployed in a wider area < p > Derek tourner, director of the US Space Development Agency (SDA), said: "the concept of carpool launch is unique. If you are not familiar with the orbit, it is a perfect service. You don't have to wait for a long time for launch, just book it when you are ready for launch." < p > SpaceX is just one of many launch providers that provide microsatellite carpool launch options. Rocket lab and virgin orbit also provide such services. They have launched several small satellite payloads into space < p > exolaunch is a company that helps arrange the carpool launch mission. So far, the company has arranged the launch of 170 satellites for various customers, including start-ups, space agencies and scientific institutions. Due to the multiple launch agreements signed with SpaceX, exolauch helped deploy 59 microsatellites in SpaceX's first two carpool launch missions last year. In the third mission, the company helped to deploy 29 satellites from 17 countries, which is the most diversified mission of the company's payload to date < p > the 105 satellites carried in the transporter-3 mission vary in size, some are smaller than steam water cans or shoe boxes, and some are equivalent to the size of washing machines. The largest of these is the Sich 2-1 earth imaging satellite of Ukraine, weighing about 170 kg. It is designed to take pictures of the earth to help track environmental changes, urban expansion, and crop management. Other notable payloads are eight tevel satellites built by Israeli students to provide radio communication support in low earth orbit The < p > transporter-3 mission flew along an unusual path, took it south, and then flew over the Atlantic along the east coast of Florida in order to deploy the payload into polar orbit. Under normal circumstances, when rockets are launched from Florida, they will launch eastward over the ocean. In the past, these types of launches usually took off from the west coast because they could more easily avoid densely populated areas < p > the demand for SpaceX's carpool launch plan is very high. Although it is insignificant in the company's other considerable launch and service revenue, SpaceX safely put 323 small satellites into orbit in only three launches, providing services to more than 100 customers. This means that in less than 12 months, the number of microsatellites launched by SpaceX is about three times that of rocket lab, a microsatellite launch company, in the past four years < p > SpaceX carpool launch also has great revenue generating potential. Taking transporter-3 as an example, the cost of this launch is about US $15 million to US $30 million, and the payload with a total weight of about 3-4 tons is sent into solar synchronous orbit (SSO). SpaceX charges customers a fixed price of $1 million to buy a 200 kg mission slot, which means that a 4-ton payload can theoretically bring the company a net income of $20 million. (small) < / P > < p >