| Date: | 2021-07-21 |
| Time: | 1403 ie |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | |
| Time Entered: | 2021-07-21 14:05:35 |
| Time Updated: | 2021-07-21 15:50:19 |
| Time Uploaded: | 2021-08-31 10:17:36 |
| Entrant: | JarnoO |
| Observer: | OFVEC static |
| Submitted to: | Geysertimes.org |
| Comments: | prediction GT & NPS 1413; 1201 and 1202 frames missing, therefore ie; long based on next interval |