| Geyser | 1998-04-08 |
|---|---|
| Daisy | 1324 ie, 1703 |
| Giant Hot Period | 0500 A, 1115 A, 1400 A, 1754 |
| Grand | 1323 ie |
| Grotto | 1245, 2216 ie |
| Rift | 1230 ie |
| Riverside | 1304 ns, 1817, 2358 |
| Spiteful | 0945 A |
| Turban | 2214 ie |
| Vent | 2214 ie |
| Values for Old Faithful Area | 1998-04-08 |
|---|---|
| Astronomical Twilight Begin | 05:08 |
| Nautical Twilight Begin | 05:45 |
| Civil Twilight Begin | 06:21 |
| Sunrise | 06:51 |
| Sunset | 19:59 |
| Civil Twilight End | 20:28 |
| Nautical Twilight End | 21:04 |
| Astronomical Twilight End | 21:42 |
| Moon Illumination | 88.28% |