| Geyser | 2002-04-11 |
|---|---|
| Artemisia | 0005 E, 1400 E |
| Castle | 0242 E, 0818 E, 2142 E |
| Fountain | 0127 E, 0651 E, 1139 E, 1639 E, 2137 E |
| Grand | 0415 E, 1428 E |
| Great Fountain | 0948 E, 2238 E |
| Grotto | 0218 E, 0818 E, 1343 E |
| Values for Old Faithful Area | 2002-04-11 |
|---|---|
| Astronomical Twilight Begin | 05:01 |
| Nautical Twilight Begin | 05:39 |
| Civil Twilight Begin | 06:15 |
| Sunrise | 06:45 |
| Sunset | 20:02 |
| Civil Twilight End | 20:32 |
| Nautical Twilight End | 21:08 |
| Astronomical Twilight End | 21:47 |
| Moon Illumination | 2.24% |