| Geyser | 1999-06-03 |
|---|---|
| Constant | 0957 |
| Echinus | 1210, 1505, 1615, 1917 |
| Fireball | 1000 |
| Grand | 0447 E, 1655 E |
| Great Fountain | 0603 E, 1618 E |
| Values for Old Faithful Area | 1999-06-03 |
|---|---|
| Astronomical Twilight Begin | 03:19 |
| Nautical Twilight Begin | 04:17 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:40 |
| Sunset | 21:02 |
| Civil Twilight End | 21:38 |
| Nautical Twilight End | 22:24 |
| Astronomical Twilight End | 23:23 |
| Moon Illumination | 86.04% |