Chart correction NNU-323463 — chart 209
установлен · Frankford Upper Range Rear Light · Oc G 4s 50ft · Lighted throughout 24 hours. Visible 1.5° either side of rangeline. SIGSEQ="3+(1)"
Source: NOAA Nautical Updates — critical (US waters)
Reference information — always verify against official Notices to Mariners before navigation.