The following form provides an approximation for the signal to noise, bandwidth, and received power for an NEO of known distance, size, and rotation period. You can either select the Arecibo Observatory or Goldstone as your receiver. Arecibo Observatory Homepage . Planetary Radar at Arecibo Observatory Homepage . Script Author's Homepage - Mike Nolan . Website Author's Homepage - Edgard Rivera-Valentin . ... Receiver Location: Arecibo Goldstone . ...