| Geyser | 1969-06-28 |
|---|---|
| Cistern Spring | 1200 |
| Echinus | 0920, 1000, 1040, 1215, 1408, 1510, 1525 |
| Giantess | 0000 A |
| Ledge | 0001 A |
| Values for Old Faithful Area | 1969-06-28 |
|---|---|
| Astronomical Twilight Begin | 03:13 |
| Nautical Twilight Begin | 04:15 |
| Civil Twilight Begin | 05:04 |
| Sunrise | 05:40 |
| Sunset | 21:12 |
| Civil Twilight End | 21:48 |
| Nautical Twilight End | 22:37 |
| Astronomical Twilight End | 23:39 |
| Moon Illumination | 96.12% |