| Geyser | 2002-04-03 |
|---|---|
| Artemisia | 0730 E, 2135 E |
| Castle | 0218 E, 1430 E |
| Fountain | 0135 E, 0704 E, 1338 E, 1923 E |
| Grand | 0106 E, 0917 E, 1854 E |
| Great Fountain | 0543 E, 1848 E |
| Grotto | 1508 E, 1923 E |
| Values for Old Faithful Area | 2002-04-03 |
|---|---|
| Astronomical Twilight Begin | 04:18 |
| Nautical Twilight Begin | 04:55 |
| Civil Twilight Begin | 05:30 |
| Sunrise | 06:00 |
| Sunset | 18:52 |
| Civil Twilight End | 19:22 |
| Nautical Twilight End | 19:57 |
| Astronomical Twilight End | 20:34 |
| Moon Illumination | 63.94% |