Old Faithful Geyser Summary 2009
From 01-Jan-09 to 31-Dec-09
% Long Intervals 93.00% 93.66% 95.45%
% Short Intervals 7.00% 6.34% 4.55%
Statistics Year to date Last Month Last Week
All Intervals 5788 489 110
Minimum 0:46:00 0:51:42 0:51:42
1st quartile 1:27:00 1:28:00 1:26:54
Mean 1:30:36 1:31:25 1:31:51
Median 1:32:00 1:32:24 1:32:24
3rd quartile 1:36:00 1:36:48 1:37:37
Maximum 2:04:18 2:04:18 1:55:30
Std. Dev. 0:09:42 0:09:34 0:09:10
Coef. Of Var. 10.70% 10.47% 9.97%
Statistics Year to date Last Month Last Week
Long Intervals 5383 458 105
Minimum 1:15:00 1:17:00 1:20:18
1st quartile 1:28:00 1:29:06 1:28:00
Mean 1:30:36 1:31:25 1:31:51
Median 1:32:00 1:32:24 1:32:24
3rd quartile 1:36:00 1:36:48 1:37:54
Maximum 2:04:18 2:04:18 1:55:30
Std. Dev. 0:06:31 0:06:39 0:06:44
Coef. Of Var. 7.03% 7.13% 7.23%
Statistics Year to date Last Month Last Week
Short Intervals 405 31 5
Minimum 0:46:00 0:51:42 0:51:42
1st quartile 1:00:30 1:01:03 0:58:18
Mean 1:04:11 1:04:43 1:03:48
Median 1:04:00 1:06:00 1:07:06
3rd quartile 1:08:12 1:08:12 1:08:12
Maximum 1:14:48 1:14:48 1:13:42
Std. Dev. 0:05:27 0:05:39 0:08:44
Coef. Of Var. 8.50% 8.73% 13.68%
Prediction Results - Long Intervals
Long Prediction: 1h32m 10m
  Year to date Last Month Last Week
Early 4.4% 2.4% 1.0%
In Window 88.1% 87.3% 86.7%
Late 7.6% 10.3% 12.4%
Prediction Results - Short Intervals
Short Prediction: 1h3m 10m
  Year to date Last Month Last Week
Early 3.2% 6.5% 20.0%
In Window 92.1% 83.9% 60.0%
Late 4.7% 9.7% 20.0%
Gap from 0000 02 January to 1800 02 January due to ice