Image 1:
I don't know if anyone determined the exact flight that Q posted photos of on May 2. But I thought of using the photo of Apple Park as a clock. It is built as a circle. You can see the transition between sunlight and shadow on the curved walls of the building, one on the inner circle, one on the outer circle. This gives the direction of the sun. I traced a line through these two points, then made a parallel, tangent line at the right edge of the building. You can see it also intersects the Southwest end of the bridge over the highway.
Image 2:
I traced a tangent line at the Southeast side of the building that intersects with the Southwest point of the bridge over the highway. As a control (although not seen in the image), this line also crosses Kaiser Permanente buildings at about the same points as in image 1. The line falls at 65 degrees on the navigation board. Add 90 degrees as the sun is at a right angle to the line, giving an azimuth (bearing) of 155 degrees.
http://aa.usno.navy.mil/cgi-bin/aa_altazw.pl?form=1&body=10&year=2018&month=5&day=2&intv_mag=5&state=CA&place=Cupertino
The sun was at azimuth 155 degrees in Cupertino, CA on 5/2/18 at 12:25 PM. That should narrow us down! What Jetblue flights were taking off about that time?