| Geyser | 2002-04-10 |
|---|---|
| Artemisia | 0140 E, 1505 E |
| Castle | 0224 E, 1436 E |
| Fountain | 0055 E, 0543 E, 1041 E, 1542 E, 2046 E |
| Grand | 0749 E, 1813 E |
| Great Fountain | 0648 E, 2158 E |
| Grotto | 0518 E, 1153 E |
| Values for Old Faithful Area | 2002-04-10 |
|---|---|
| Astronomical Twilight Begin | 05:03 |
| Nautical Twilight Begin | 05:41 |
| Civil Twilight Begin | 06:17 |
| Sunrise | 06:47 |
| Sunset | 20:01 |
| Civil Twilight End | 20:31 |
| Nautical Twilight End | 21:07 |
| Astronomical Twilight End | 21:45 |
| Moon Illumination | 5.89% |