I was doing a patrol in castle rock and at 2055 i noticed a string of red lights (about 10-15) moving north to northeast. they were all in a straight line pulsating an orange light. in the middle there was an white light. almost like a yellowish light strobing in a random pattern. the object was also at a very strange angle looking to be at close to a 45 degree. the object seemed to be over 350 feet in length side to side but very slim too to bottom only looking to be about 30 feet judging by the light. by judging the direction of the objects flight it would have had to come over the back of the property i an working at. the object had made no noise. the object was moving very slow it seemed like due to the time it took to disappear over the horizon.