crimsonday

3 ms·

1. 1.▲
   by crimsonday 4y ago

   As comparison, a modern phone contains around 50-70 individual ranging receivers similar to the Apollo ranging receiver, all capable of operating simultaneously (each with its own spread spectrum sequence, Doppler shift etc). The GNSS chip
2. 2.▲
   by crimsonday 4y ago

   A modern phone contains around 50-70 individual ranging receivers, all capable of operating simultaneously (each with its own spread spectrum sequence, Doppler shift etc). The GNSS chip typically has 30-60. The 3G modem (if enabled) has ~10
3. 3.▲
   by crimsonday 4y ago

   Today, about 1mm, which is x1000 better accuracy: > The distance to the Moon can be measured with millimeter precision. > The Moon is spiraling away from Earth at a rate of 3.8 cm/year From: https://en.m.wikipedia.org&