| Date: | 2021-08-22 |
| Time: | 0503 |
| Geyser: | Grand |
| Webcam: | Yes |
| Initial: | No |
| Major/Minor: | N/A |
| Duration: | ~9m53s |
| Standardized Duration: | ~9m 53s |
| Grand Code: | -2*- |
| Time Entered: | 2021-08-22 05:27:01 |
| Time Updated: | 2021-08-22 05:28:30 |
| Time Uploaded: | 2021-08-22 05:28:30 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | Geysertimes.org |
| Comments: | (all based on steam plume forming and detaching) B1: 0503:±24 d=±7m13s; P1 ±21s B2: 0510:±58 d=±2m19s appeared C as of 0518:34 |