Correlations of Starlink Satellite Flaring with UAP Observations

All-domain Anomaly Resolution Office (AARO)
9
Figure 11: Graphic illustrating the geometry discussed above. The horizon is indicated by the
dashed arrow.
ε is the angle above the horizon to the position of the satellite and potential flare.
These numbers will vary for satellites with different orbital altitudes, but these guidelines are
suitable for the current family of Starlink satellites.
Step-by-step Process to Estimate Location of Flare Window
We now have enough information needed to estimate the look angles to observe Starlink flares,
specifically the sun’s elevation angle and satellite elevation angle. One can use the following
process to predict the flare window’s azimuth and elevation. Table 1 provides a template for
recording your observation.
Note the following information:
1. Choose the observation location (latitude and longitude).
2. Select the year.
3. Select the date.
4. Predict the Sun's azimuth at the chosen time, date, and location by entering the information
from steps 1-3 into an online calculator of your choice. Two example calculators are
https://www.suncalc.org/ or https://www.timeanddate.com/sun.
5. Use the slider bar at the top of the page for suncalc.org or the expandable tables on
timeanddate.com to find the time and azimuth after sunset when the Sun's altitude is -38°.
6. Record the Sun's azimuth and the local time of day.
7. After recording information from step 6, use the slider bar at the top of the page for
suncalc.org or the expandable tables on timeanddate.com to find the time and azimuth after
sunset when the Sun's altitude is -46°.
8. Record the Sun's azimuth and the local time.
9. Repeat steps 4 through 8 for the following day. Find the times and azimuths for the Sun
before sunrise at -38° and -46°.