| Geyser | 1999-06-11 |
|---|---|
| Echinus | 1020, 1300, 1545 |
| Fireball | 1605 |
| Grand | 0847 E, 2157 E |
| Great Fountain | 0553 E, 1528 E |
| Lone Pine | 0240 E, 1821 E |
| Values for Old Faithful Area | 1999-06-11 |
|---|---|
| Astronomical Twilight Begin | 03:11 |
| Nautical Twilight Begin | 04:13 |
| Civil Twilight Begin | 05:01 |
| Sunrise | 05:38 |
| Sunset | 21:07 |
| Civil Twilight End | 21:44 |
| Nautical Twilight End | 22:32 |
| Astronomical Twilight End | 23:33 |
| Moon Illumination | 9.69% |