This sighting was from Frontier Airlines flight 2414 into Cleveland. I was able to screenshot my GPS position on google maps shortly after seeing the fireball. However, being in the air at night left me with almost no frame of reference for the elevation or headings. The aircraft would have been on a heading of 95-105deg and I was looking out the north facing window at that time so I would have a view of nearly half the sky. The map screenshot was taken at 5:23pm MST so it would have certainly been minutes before that. The aircraft would have been descending from ~30kft to around ~15kft during that time frame.