| Date: | 2018-01-02 |
| Time: | 1100 |
| Geyser: | Old Faithful |
| Webcam: | Yes |
| Initial: | No |
| Long/Short: | Long |
| Duration: | |
| Time Entered: | 2018-01-02 11:00:44 |
| Time Updated: | 2018-01-02 11:05:34 |
| Time Uploaded: | 2018-01-02 11:06:07 |
| Entrant: | JarnoO |
| Observer: | |
| Submitted to: | |
| Comments: | preplay 1039 (possibly earlier); prediction GT 1100; steam development made it hard to time the eruption, possibly a medium |