On 24 June 1953, weather observer Richard A. Hill reported a red shape while following a pilot balloon through a theodolite at Simiutak, Greenland. The balloon burst, and he believed another object had struck it. The released military file contains his statement, immediate messages, corrections and follow-up questions. Those records do not establish a collision with an independently identified craft.
The observation at BW-3
The station is identified as Simiutak, or BW-3, in the eighteen-page released file. Hill was described as having three and a half years of weather-observing experience. His signed statement was taken on 25 June; a formal intelligence report and a succession of messages carried his account to Northeast Air Command and the Air Technical Intelligence Center.
Hill placed the observation at 14:30Z on 24 June. An early message likewise used 14:30Z and said that the headquarters received the information at 14:45Z. The formal report used 14:45Z as the observation time. The documents preserve that difference; they do not contain a final explicit reconciliation of the two times.
He was tracking a hundred-gram pilot balloon through a theodolite, an optical surveying instrument used here for balloon observations. His statement put the balloon at about eighteen thousand feet and approximately three miles from his position when it burst. These reported circumstances are distinct from an independently established distance or altitude for the unidentified shape.
A red shape after the burst
According to Hill, a red object appeared where the balloon had been. He described its structure as unresolved, although it seemed to have a definite, somewhat triangular shape. It appeared roughly twice the balloon’s size. For about fifteen seconds it remained in approximately the same place while making slow circular or looping movements.
He then saw it move towards the northwest. In motion it appeared as a red, ball-shaped point. It left no trail and seemed to gain both altitude and speed, finally disappearing after approximately five minutes. Those are the observer’s impressions through the instrument, rather than measurements of a known body’s physical dimensions and velocity.
The early message described its size as three times that of the balloon; Hill’s statement and the formal report used twice. The documents also give differing balloon-size descriptions. His statement referred to a balloon about four feet across, while the later intelligence report described a diameter of approximately fifteen feet at eighteen thousand feet. These differences do not support calculating a reliable craft size from the comparison.
Was a collision actually seen?
The initial emergency message presented the balloon’s destruction as a collision. A subsequent amplification, however, explicitly said that Hill had not seen the balloon and object simultaneously through the theodolite. His signed statement describes the balloon bursting and a red shape being there in its place. That sequence explains his interpretation, but does not by itself prove contact between two separately resolved bodies.
The Air Technical Intelligence Center noticed the difficulty. Its questions asked whether the supposed collision had been seen through the instrument or with the naked eye, specifically referring to the earlier statement that the two had not been visible together. The investigators also asked about the balloon’s visibility, normal bursting altitude and possible carried instruments or a red parachute.
Major Ralph Wallace’s reply of 2 July said the collision had been seen through the theodolite and that neither the balloon nor the object was visible unaided. This is a later answer within the same single-observer case. It does not supply another observer or resolve exactly how a collision was distinguished from a red appearance immediately after the balloon burst.
The instrument and the wind
A reported bearing of 301 degrees was taken as the object disappeared. The instrument therefore forms a significant part of the account. It does not turn an angular direction into an independently measured range. Once the balloon had burst, the unknown shape’s actual altitude could not simply be assumed to equal the balloon’s reported altitude.
The file contains a correction to an early message about the wind: the statement that winds were not from the west was changed to say that winds were from the west. A retelling based only on the uncorrected message would lose an important part of the surviving record.
The weather information also varied with height. The reported pilot-balloon profile reached sixteen thousand feet, with a marked wind shift described between sixteen and eighteen thousand feet. A chart analysis gave winds at eighteen thousand feet from 280 degrees at twelve knots, and northwesterly winds above that level. The formal report interpreted the departure as movement into the wind.
Captain Nathan Meyerson’s 1 July discussion made a narrower point: without continuous altitude measurements of the unknown object, its movement could not confidently be compared with the winds at an assumed level. He also noted that the red appearance immediately followed the balloon’s burst, suggesting a relationship between the two events. This was an analytical possibility, not a recovered identification of the red material or a demonstrated optical reconstruction.
What the follow-up established
Wallace’s reply said a hundred-gram balloon would not ordinarily be expected to burst below thirty thousand feet, and might reach forty thousand feet or higher depending on pressure. It reported no abnormally low pressure at the time. The early burst was therefore considered a question requiring explanation, rather than proof that a second machine had attacked the balloon.
The same reply explicitly stated that the balloon carried no instruments. The investigators’ question about a red parachute must not be converted into a documented recovery of one. The file does not identify a payload or recovered fragment as the source of the reported red appearance.
The weather-detachment commander offered an optical illusion or parallax in the theodolite as his opinion of a possible cause. No instrument examination or experiment reproducing the sighting is included. The summary card retained an unidentified classification while also expressing doubts about the reported manoeuvres. Neither that classification nor the doubts independently determine what Hill saw.
Assessment and location
The outcome is Insufficient Evidence. The file documents a sustained observation through an optical instrument and an investigation that asked relevant questions. It also preserves material differences over timing, apparent size and the alleged collision. One observer, no corroborating photograph or physical identification, and an unknown range after the burst limit a firm conclusion. Optical effects or material associated with the burst remain proposals rather than established explanations.
There is a separate geographical difficulty. The intelligence report prints station coordinates of 61°11′ north, 46°34′ west. The GeoNames Greenland gazetteer identifies Simiutaq Station, with the explicit aliases Simiutak Station and Bluie West Three, at approximately 60.68337, −46.59675 in Kujalleq. The map uses a rounded BW-3 station-area reference of 60.68, −46.60, with that discrepancy stated rather than silently repairing the primary document.
This reference is not an exact observer position or a pin for an airborne object. It also avoids confusing southern Greenland’s BW-3 with the similarly named northern island near the Sondrestrom coastal area. The incident year is 1953; later report and archive dates are not additional encounters. No present visitor access to the former weather station is established by these records.