| Geyser | 1999-06-04 |
|---|---|
| Constant | 1151, 1325 |
| Echinus | 0950 |
| Fireball | 1054, 1648 |
| Grand | 0507 E, 2007 E |
| Great Fountain | 0508 E, 1513 E |
| Opal Pool | 1104 ini |
| Pinto | 1405 |
| Values for Old Faithful Area | 1999-06-04 |
|---|---|
| Astronomical Twilight Begin | 03:17 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:40 |
| Sunset | 21:02 |
| Civil Twilight End | 21:38 |
| Nautical Twilight End | 22:26 |
| Astronomical Twilight End | 23:25 |
| Moon Illumination | 78.49% |