Unless you invent some new launch method, a dozen or so countries will immediately know. Shortly afterwards, amateur astronomers will spot it. https://gizmodo.

Unless you invent some new launch method, a dozen or so countries will immediately know. Shortly afterwards, amateur astronomers will spot it. https://gizmodo.com/amateur-astronomer-catches-fleeting-glimpse-of-secret-spy-satellite-2000502890 https://gizmodo.com/amateur-astronomer-catches-fleeting-glim...