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Correlations of Starlink Satellite Flaring with UAP Observations

All-domain Anomaly Resolution Office · 19 pages · text from the file's own layer

The All-domain Anomaly Resolution Office issued this information paper in December 2024 on how sunlight reflecting off Starlink and other Low Earth Orbit satellites can be mistaken for UAP. It explains the difference between diffuse and specular reflection, Starlink trains, and flares, and it gives a step-by-step method for predicting flare windows. The method is shown with AARO photographs taken near Sidney, Nebraska, and applied to a 2022 airline pilot report near Gallup, New Mexico. AARO concluded that the lights in that report were very likely satellite flares.

  • p. 1 All-domain Anomaly Resolution Office (AARO) 1 An AARO Information Paper Correlations of Starlink1 Satellite Flaring…
  • p. 3 …Satellite Flares and Satellite Trains Figure 4 shows a Starlink satellite in its operational configuration. Starlink…
  • p. 4 …Figure 5 below provides examples of each flare scenario. Figure 4: Rendering of Starlink satellite noting…
  • p. 5 …Estimating When and Where to See Starlink Flares The location and appearance of these flares is…
  • p. 6 …Image of Starlink flare taken by AARO personnel before sunrise on March 11, 2024 near Sidney…
  • p. 7 …point in the sky to potentially see flares. These geometries are shown in Figure 9. The…
  • p. 8 …In other words, the satellite and resultant flare are directly at the horizon. Realistically, no surface…
  • p. 9 …ε is the angle above the horizon to the position of the satellite and potential flare…
  • p. 10 …Example template for recording estimated azimuth and times for Starlink flare windows. Observation Site Latitude NOTES…
  • p. 11 …Note that the azimuth to the Starlink flares falls within the predicted angles in Table 2…
  • p. 12 …Note that the azimuth to the Starlink flares falls within the predicted angles in Table 2…
  • p. 14 …Use Figure 10 above to estimate the elevation look angle at which Starlink flares should have…
  • p. 15 …The following procedure will determine if the reported lights could be Starlink flares. Table 3: Example…
  • p. 16 …The red satellites are estimated to be flaring per this website. The red arrows were added…
  • p. 17 …short-lived flashes of light called “satellite flares.” Diffuse reflection from dozens of satellites launched in…
All-domain Anomaly Resolution Office (AARO)
10
10. Using the information in the table, perform the observations and record the measured
values in the table.
Table 1: Example template for recording estimated azimuth and times for Starlink flare windows.
Observation Site Latitude
NOTES:Longitude
After sunset Before sunrise
Date Time (L) Sun Altitude Azimuth Look
Angle
Date Time (L) Sun Altitude Azimuth Look
Angle
-38° 10° -46° 0°
-46° 0° -38° 10°
Measured Values of Satellite Flare Measured Values of Satellite Flare
Date Time (L) Flare
Azimuth
Flare
Elevation
Date Time (L) Flare
Azimuth
Flare
Elevation
The scenario below illustrates this process by working through an example.
Scenario
Suppose AARO personnel want to gather images and video of Starlink flares to support the
development of this information paper. AARO personnel travel from March 8-12, 2024, and select
Sidney, NE as the destination. This is due to its ~4000 feet altitude within the High Plains and the
generally flat terrain in this area, both of which make conditions more favorable to observe space-
based objects near the horizon.
The necessary information is:
1. Observation location: Sidney, NE
2. Year: 2024
3. Day: March 10 after sunset and March 11 before sunrise
For steps 4 through 10, see Table 2 below. This was completed using https://www.suncalc.org.
Table 2 shows that the measured azimuths and altitudes of the exemplified flares fall within the
predicted values. Figure 12 and Figure 13 are example photos taken during the two timeframes
noted in Table 2. AARO used https://theskylive.com/planetarium to reference the flare locations
against the known positions of other celestial bodies, which are noted in the images.
Implications for Airborne Observation
Up to this point, the discussion has assumed the observer is located on the surface of the Earth.
However, the phenomena of satellite trains and flares are also visible from aircraft. The angles,
geometries, etc. may differ, but the fundamental principles are the same. For an airborne observer,
the opportunity to see flares can persist longer when flying East to West after sunset in the direction
of the Sun or West to East before sunrise in the direction of the Sun because they can stay in the
flare light cone longer.

Cases discussed

About this file

Report, from the aaro collection. The PDF is mirrored here; the original link is under it. 19 pages are in the text index: search them above, or from the library's search.