Backlick Run AT Landmark / Alexandria

Ranking Statistics

247 score61.8of 100

Virginia median

95.9the median score of 1,541 stations

Scoring higher

1,515stations in Virginia

Sharing its score

2ranks 1,516 to 1,517

Points deducted

38.230.0 reports received, 7.1 continuity, 0.8 arrival, 0.4 forecast check

Counted at the median

Accuracy, instrument checks, forecast checknot measured at this station; Virginia median 100.0, 100.0, 96.5

Next above

FW9463rank 1,516; ahead on reports received 20.2% against 14.4%

Next below

RNSV2rank 1,518; behind on 247 score 61.8 against 61.7

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 3514.45.0 of 35 pointsVirginia median 97.929 of 201 scheduled reports received in 7 days
2. Arrivalweight 1092.09.2 of 10 pointsVirginia median 92.7half its reports arrived within 14 min
3. Continuityweight 1028.82.9 of 10 pointsVirginia median 100.0longest silence 24 h, on a schedule of one report every 50 min
4. Accuracyweight 20-20.0 of 20 points, at the medianVirginia median 100.0-
5. Instrument checksweight 15-15.0 of 15 points, at the medianVirginia median 100.0-
6. Forecast checkweight 10-9.7 of 10 points, at the medianVirginia median 96.5-

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