2007-03-19 - Dublin, CA - Other

2 stationary white objects at high altitude - then disappeared after 1 minute. 3 more objects seen moving slowly across the sky.

While working at a construction site I happened to look up (towards the north) and observed what appeared to be 2 white roundish objects at an extreme altitude. At first I thought they might be a pair of sea gulls but they didn't move - they stayed in the exact same spot. We had some high altitude cloud whisps in the general area but they were not clouds - they were too white and very distinctly formed. I watched the objects for approx 30 seconds and then moved to a different position to get a better look and when I returned to that part of the sky they were gone. While the objects were visible I mentioned to another construction worker but he didn't bother to look. Approximately 5 to 10 minutes later I happend to look up again out of curiosity and spotted a single white round object moving slowly from west to east. I first spotted the object to the west - what I would estimate to be over the hills that seperate Castro Valley (in the west) and Dublin - this object appeared to be in a high altitude as well, but not as high as the first 2 objects. This time I was able to get the construction worker to look up and he thought it was a balloon - which was my thought as well as it was moving very slowly but in a staight line. As it passed over head I moved to adjust my view again and when I looked back up it was gone. This happened 2 more times over the next approx half hour. The third object was almost in the same exact spot when I spotted the second and it moved just as slow and in a straight line from west to east only this time it was red. Again as it passed over head I adjusted my view and again it was gone. The third and last time this happened the object was again white, it moved in the exact same path that the previous white and red object had moved, at approx the same speed, but this time I kept my eyes on it (thinking that it maybe a balloon again) but after it passed overhead, it proceeded a ways - to what I would estimate to be the Altamont Pass hills area east of Livermore - and! then it stopped! I continued looking and I used my hardhat brim to try to see if it was still moving, I kept my head absolutely motionless and used the Satilite Antenna on a distant hill as a reference point to make sure I wasn't moving my hardhat at all. The object was still in the same spot that it had stopped in but it was becoming dimmer and that's when it came to me that it must be moving up. This is when I realized that it was also becoming smaller - I watched this object for about 3 to 4 minutes total till it disappeared from view.