| Geyser | 1999-03-06 |
|---|---|
| Great Fountain | 0058 E, 1208 E, 2208 E |
| Values for Old Faithful Area | 1999-03-06 |
|---|---|
| Astronomical Twilight Begin | 05:15 |
| Nautical Twilight Begin | 05:49 |
| Civil Twilight Begin | 06:22 |
| Sunrise | 06:51 |
| Sunset | 18:17 |
| Civil Twilight End | 18:46 |
| Nautical Twilight End | 19:19 |
| Astronomical Twilight End | 19:53 |
| Moon Illumination | 84.92% |