2 citations · 2 across the 5 of their papers we have counts for
6 papers
Brightness Characterization and Modeling for Amazon Leo Satellites
Anthony Mallama, Richard E. Cole, Hui Zhi +4
The mean apparent magnitude of Amazon Leo satellites is 6.28 based on 1,938 observations. For spacecraft in their operational mode, 92% exceeded the brightness limit recommended by…
Satellite Constellations Exceed the Limits of Acceptable Brightness Established by the IAU
Anthony Mallama, Richard E. Cole
Brightness statistics for satellites of the Starlink, BlueBird, Qianfan, Guowang and OneWeb constellations are reported. The means and standard deviations are compared to acceptabl…
Brightness Characteristics of the Qianfan Satellites and Evidence That Some Are Tumbling
Anthony Mallama, Richard E. Cole, Stephan Hellmich +3
The mean apparent magnitude of the Qianfan satellites is 5.76 +/- 0.04, while the mean of magnitudes adjusted to a distance of 1,000 km is 5.24 +/- 0.04, based on 1,161 observation…
Initial Observations of the First BlueBird Spacecraft and a Model of Their Brightness
Richard E. Cole, Anthony Mallama, Scott Harrington +1
Based on a large set of visual observations, the mean apparent magnitude of BlueBird satellites is 3.44, while the mean of magnitudes adjusted to a uniform distance of 1000 km is 3…
Characterization of Starlink Direct-to-Cell Satellites In Brightness Mitigation Mode
Anthony Mallama, Richard E. Cole, Jay Respler +1
The mean apparent magnitude of Starlink Mini Direct-To-Cell (DTC) satellites observed in brightness mitigation mode is 5.16, while the mean of magnitudes adjusted to a uniform dist…
Brightness of the Qianfan Satellites
Anthony Mallama, Richard E. Cole, Bram Dorreman +2
Observed magnitudes of Qianfan spacecraft range from 4 when they are near zenith to 8 when low in the sky. Nearly all of the observations can be modeled with a nadir-facing flat an…