| Geyser | 1973-09-14 |
|---|---|
| Arsenic | 1645 |
| Blue | 1600 ie |
| Cistern Spring | 1800 |
| Congress Pool | 1640 |
| Dabble | 1007 |
| Echinus | 0944, 1040, 1430, 1536, 1800 |
| Fireball | 1600 ie |
| Little Whirligig | 1530, 1600 |
| Orby | 1015 ie |
| Whirligig | 1524 |
| Values for Old Faithful Area | 1973-09-14 |
|---|---|
| Astronomical Twilight Begin | 05:21 |
| Nautical Twilight Begin | 05:57 |
| Civil Twilight Begin | 06:32 |
| Sunrise | 07:01 |
| Sunset | 19:36 |
| Civil Twilight End | 20:05 |
| Nautical Twilight End | 20:40 |
| Astronomical Twilight End | 21:15 |
| Moon Illumination | 97.03% |