| Geyser | 1999-06-06 |
|---|---|
| Constant | 1333, 1348, 1423 |
| Echinus | 1145, 1454 |
| Fireball | 0941, 0946 |
| Grand | 0039 E, 1219 E, 2221 E |
| Great Fountain | 0333 E, 1508 E |
| Values for Old Faithful Area | 1999-06-06 |
|---|---|
| Astronomical Twilight Begin | 03:15 |
| Nautical Twilight Begin | 04:15 |
| Civil Twilight Begin | 05:03 |
| Sunrise | 05:39 |
| Sunset | 21:04 |
| Civil Twilight End | 21:40 |
| Nautical Twilight End | 22:27 |
| Astronomical Twilight End | 23:28 |
| Moon Illumination | 59.77% |