Web port of the EVE26 desktop tool by Alex K6VHF — Deep Space Exploration Society. Computes all parameters for Earth–Venus–Earth amateur planetary radar experiments. Pure JavaScript — no server, no install, no SPICE kernel required.
Pr = Pt·G²·λ²·σ / ((4π)³·R⁴). Coherent SNR = Pr·τ / (k·Tsys). Atmospheric loss via ITU-R P.676-12. Faraday rotation from TEC.
Simplified Keplerian elements for Venus/Earth/Moon. Accurate to ~0.2% for inferior conjunction planning. For research-grade accuracy use desktop version with SPICE DE440s.
B = 4·v_eq·|cos(δ_sub)| / λ. Venus equatorial ≈ 1.81 m/s. At 1296 MHz equatorial B ≈ 31 Hz. CAMRAS 2025 near-pole geometry: ~0.8 Hz.
τ_max = √(1/|r|) where r = −2f·a_rad/c. CAMRAS 2025 applied −0.2269 Hz/s dechirp for 280 s coherent integration.
DSES Haswell — K6VHF, 10 m dish, 1296 MHz, 500W
Dwingeloo — CAMRAS, 25 m, 2025 EVE detection site
Bochum — AMSAT-DL, 20 m, 2009 EVE experiment
Goldstone — JPL DSS-14, 70 m, reference site
VLA — NRAO, 27×25 m, passive receiver site
Stockert — Astropeiler, 25 m, bistatic partner