\section {VI. Observations}

The following observations are taken with an 1.5 meters radio telescope
with the specification

Telescope diameter: 1.5m (4.92 ft = 59.05")

Focal Ratio (F/D): 0.411 (prime focus antenna)

Beamwidth (HPBW @ 1420 MHz): \textasciitilde8.95° (k factor = 63.64)

Operating frequency range: 1300\textasciitilde1700 MHz (L band)

Two-stage low-noise amplifier (LNA): Gain: 30 ± 2 dB - Noise figure
(NF): \textless{} 0.5 dB

High-pass filter: -30 dBc below 900 MHz