Data and Analysis
The two Green Ghost events were recorded at 30 fps on 24 and 25 May 2020 at Heliotown Observatory in Lamy, NM (35.5028N, -105.8936E) using a SONY A7s II in video mode. The sprite on 24 May 2020 was at 03:31:22 UT, and the sprite on 25 May 2020 was at 03:55:19 UT. In both events the green ghost appears in the top of a large sprite and lasts about a second after the sprite has turned off. The 24 May sprite has 24 frames (0.7 s) and the sprite on 25 May has 36 frames (1.2 s) with sprite and ghost features. The videos can be viewed at https://vimeo.com/422073242 (24 May 2020)and  https://vimeo.com/423369251 (25 May 2020).
Figure 2 shows six frames from the 25 May 2020 event. The main sprite lasts 2 frames. After turn-off, t = 66 ms, a faint green ghost is present in the area of the top of the sprite. The ghost brightens reaching maximum at frame 8, t= 166 ms, and decays after that. The event on the previous day, 24 May 2020, was very similar.