| Geyser | 1989-09-15 |
|---|---|
| Constant | 1200, 1440 |
| Crater Spring | 1200 |
| Dark Cavern | 1200 |
| Echinus | 1000 maj, 1048, 1120, 1157, 1304 maj, 1429, 1505, 2025 |
| Giantess | 0857 |
| Vixen | 1540 |
| Whirligig | 1200, 1231, 1412, 1455 |
| Values for Old Faithful Area | 1989-09-15 |
|---|---|
| Astronomical Twilight Begin | 05:23 |
| Nautical Twilight Begin | 05:58 |
| Civil Twilight Begin | 06:33 |
| Sunrise | 07:02 |
| Sunset | 19:34 |
| Civil Twilight End | 20:03 |
| Nautical Twilight End | 20:37 |
| Astronomical Twilight End | 21:13 |
| Moon Illumination | 99.92% |