Once the vehicle reached Earth's escape velocity, the upper stage was detached, allowing the probe to travel on its path to the Moon. "Luna 2" pirouetted slowly, making a full rotation every 14 minutes, while sending radio signals at 183.6, 19.993 and 39.986 MHz. The probe started transmitting information back to Earth using three different transmitters. These transmitters provided precise information on its course, allowing scientists to calculate that "Luna 2" would hit its mark on the Moon around 00:05 on 14 September (Moscow Time), which was announced on Radio Moscow.