I saw this object out my window almost due north from longmont co early morning 4am. it appeared as a slightly domed rectangular shaped object with a slightly glowing blue grey dull color. (see attached sketch) it seemed to be 7:1 units width to height. it never changed altitude that i could tell. i never saw the object change heading or rotate so i have no idea what the 3d shape is beyond a rectangle with a slightly trapezoidal narrowing towards the top. the object did appear to have a brighter outline with very tiny pinpoints of light that appeared to shimmer especially when viewed off axis from the object. the motion was very consistent with no change in alititude aside from a random 'wobble' back over the path already traveled. a maximum travel of around 10-20% of the length of the object and then back to steady rate. this wobble occurred every 10s or so i would estimate. i watch planes fly around that area and even much closer they look like specs; this object was very large. this was a nearly full moon and there was a slight haze in the atmosphere from especially humid days before. this object appeared locked into the haze about 3-5miles i would estimate and about 1000ft altitude. just my gut estimate. my wife and son and i observed it for about 5min as it slowly flew eastward and disappeared behind a tree. we drove around the corner from our house but never saw it again.