| Geyser | 1969-08-19 |
|---|---|
| Africa | 1200 |
| Arsenic | 1200 |
| Echinus | 0852, 1022, 1150, 1233, 1417, 1551, 1645 |
| Fan-Norris | 1200 |
| Fireball | 1200 |
| Ledge | 0750, 1950 |
| Minute | 1200 |
| Scummy Pool | 1200 |
| Splutter Pot | 1200 |
| Values for Old Faithful Area | 1969-08-19 |
|---|---|
| Astronomical Twilight Begin | 04:40 |
| Nautical Twilight Begin | 05:21 |
| Civil Twilight Begin | 05:59 |
| Sunrise | 06:30 |
| Sunset | 20:22 |
| Civil Twilight End | 20:53 |
| Nautical Twilight End | 21:31 |
| Astronomical Twilight End | 22:13 |
| Moon Illumination | 33.09% |