5 5mi Eof Herndon radar-visual unidentified-object report — February 1961

On or during February 1961, at or near 5 5mi Eof Herndon, Virginia, United States, the source reports the following sequence: BRIEF SUMMARY OF SIGHTING: Oval-shaped, dull yellow lights were observed just above the horizon as a red glow, which changed to yellow-orange, and then to blue-green. It hovered for about 10 to 15 minutes, then moved off to the east. No maneuver was noted except that the object appeared to be stationary for 10 to 15 minutes and then disappeared directly to the east. The following report is submitted in accordance with AFR 200-2: a. (1) Oval (2) Size of 1 pen (3) Dull yellow light (4) One (5) N/A (6) None, due to distance (7) None visible (8) No sound emitted (9) Ability to change color of light...e.g. red, orange, yellow, and white b. (1) Object first sighted above horizon as a red glow which changed to yellow, orange, and white. (2) Object sighted about 10 degrees above horizon at an azimuth of 2200 mils. (3) Object disappeared at 3 degrees at an azimuth of 4200 mils. (4) Flight appeared to be directly away from all observance. No maneuvering noticed except object appeared to rise rapidly from 10 degrees to approximately 15 degrees, then moved directly westward to 3 degrees and disappeared. (5) Object disappeared below horizon, as a dull yellow light. (6) Object was not visible for approximately one (1) hour. Analyst's Alert Report Attitude Direction Velocity Temperature 10,000 260 40 -63 15,000 260 50 -58 20,000 260 60 -53 25,000 270 70 -48 30,000 270 80 -43 35,000 270 110 -38 40,000 270 130 -36 45,000 270 135 -34 50,000 270 139 -31 60,000 279 60 -21 (3) Unlimited (4) Unlimited (5) None (6) None reported (7) Unknown h. No unusual meteorological or astronomical weather conditions reported. i. Information relating to UFOBS will be reported without delay. NON E (i) Other pertinent or unusual features: NON E (2) Description of course of object(s): OBJ ECT WAS FIXED STAR IN SKY, + APPEARED SUDDENLY AND THEN DISAPPEARED. (a) What first called the attention of observer(s) to the object(s)? WAS LOOKING UP AND SAW OBJECT. Text from the document: (b) Angle of elevation and azimuth of the object(s) when first observed: 15 right 6.25 Head (c) Angle of elevation and azimuth of object(s) upon disappearance: 6 right 4.83 the same direction + to n (d) Description of flight path and maneuvers of object(s): From right over tending to the left at about constant speed (e) Manner of disappearance of object(s): Just below horizon disappeared (f) Length of time in sight: 30 min. (3) Manner of observations: (a) Use one or any combination of the following items: Ground visual; air-visual; air-electronic. (If electronic, specify type of radar.): (b) Sightings as to physical side (telescopic, binocular, and so forth) (c) If the sighting is made while airborne, give type aircraft, identification number, altitude, heading, speed, and home station: (4) Time and date of sighting: 2/5 - 2/26/61 (a) Path of object (describe): (b) Light conditions (Use one of the following terms): Night, Day, Dawn, Dusk: (5) Locations of observer(s).