1) Already enough UPpity to proclaim the bottom is "in".

2) Getting above $38k for more than a few hours will be enough

3) Getting above $40k

4) Getting above $42k

5) Getting above $46k

6) Getting above $50k

7) Getting above $55k

8.) Getting above $62k

9) Getting above some other price level not listed above (and perhaps some additional criteria?)