Brandywine Shoal Light - 8555889

Ranking Statistics

247 score86.2of 100

Delaware median

94.6the median score of 127 stations

Scoring higher

82stations in Delaware

Sharing its score

1no other station

Points deducted

13.86.6 continuity, 3.8 reports received, 3.3 arrival, 0.1 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Delaware median 100.0, 100.0, 98.6

Next above

DE-SS-84rank 82; ahead on 247 score 88.9 against 86.2

Next below

DE-SS-89rank 84; behind on 247 score 86.2 against 86.1

Equal scores are ordered by the share of scheduled reports received, then the reports due in the week (the longer record first), then the median arrival, then the longest silence.

1. Reports receivedweight 3589.231.2 of 35 pointsDelaware median 92.7749 of 840 scheduled reports received in 7 days
2. Arrivalweight 1067.16.7 of 10 pointsDelaware median 99.9half its reports arrived within 26 min
3. Continuityweight 1033.93.4 of 10 pointsDelaware median 100.0longest silence 4.9 h, on a schedule of one report every 12 min
4. Accuracyweight 20-20.0 of 20 points, at the medianDelaware median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianDelaware median 100.0-
6. Forecast checkweight 10-9.9 of 10 points, at the medianDelaware median 98.6-

The score is the weighted mean of its six parts, from the last 7 days. How a station is ranked sets out each part.