Saw 3 saucer-shaped items traveling in formation, 3 stationary lights on each. Traveling at 2:00 AM over Joshua Tree National Park

My husband, at the time, and I were camping in Joshua Tree National Forest. It was in the summer of 1985, in June. We were sitting on the tailgate of our station wagon, star gazing. It was about 2:00 AM. We had binoculars to watch the stars. I took the binoculars from him and looked up into the sky. At that moment I saw 3 saucer-like shapes traveling in a formation, one to the left and right of the middle saucer, in a horizontal line across the sky. There was 3 lights on the front of each saucer. They were very bright. In my binoculars, they seemed to be traveling slowly, not speeding. I gave the binoculars to my husband and he saw the same thing. The ships lasted about 10 minutes in time, then just seemed to disappear as fast as they appeared. We could not see them with our naked eyes, just through binoculars.
Witness indicates that date of incident is approximate.  PD