| Geyser | 1998-03-17 |
|---|---|
| Castle | 1603 ie |
| Daisy | 1105, 1245, 1425, 1558 |
| Fan and Mortar | 1413 |
| Giant | 1619 |
| Giant Hot Period | 1607 |
| Grand | 1401 |
| Oblong | 1213 |
| Riverside | 0939, 1509 |
| Sawmill | 0847 ie, 1329 |
| Spiteful | 1115, 1555 |
| Values for Old Faithful Area | 1998-03-17 |
|---|---|
| Astronomical Twilight Begin | 04:54 |
| Nautical Twilight Begin | 05:28 |
| Civil Twilight Begin | 06:02 |
| Sunrise | 06:31 |
| Sunset | 18:31 |
| Civil Twilight End | 19:00 |
| Nautical Twilight End | 19:34 |
| Astronomical Twilight End | 20:09 |
| Moon Illumination | 85.57% |