2.4k citations · 3.4k across the 10 of their papers we have counts for
8 papers · 1 filter
Starlink Generation 2 Mini Satellites: Photometric Characterization
Anthony Mallama, Richard E. Cole, Scott Harrington +4
Starlink Generation 2 Mini satellites are fainter than Gen 1 spacecraft despite their larger size. The mean of apparent magnitudes for satellites in brightness mitigation mode is 7…
BlueWalker 3 Satellite Brightness Characterized and Modeled
Anthony Mallama, Richard E. Cole, Scott Tilley +2
The BlueWalker 3 (BW3) satellite was folded into a compact object when launched on 2022 September 11. The spacecraft's apparent visual magnitude initially ranged from about 4 to 8.…
The BlueWalker 3 Satellite Has Faded
Anthony Mallama, Richard E. Cole, Scott Tilley
Observations of BlueWalker 3 (BW3) beginning on December 8 of this year indicate that its apparent brightness had decreased. We postulate that the orbital beta angle and resultant…
Visual Magnitude of the BlueWalker 3 Satellite
Anthony Mallama, Richard E. Cole, Scott Harrington +1
Observations have been carried out in order to assess the optical characteristics of the BlueWalker 3 spacecraft which is the prototype for a new satellite constellation. The illum…
A Sky Brightness Model for the Starlink 'Visorsat' Spacecraft
Richard E Cole
A model of the brightness of the visorsat Starlink spacecraft is presented based on published information on the engineering design and from analysis of 131 observations of individ…
Performance of the PRAXyS X-ray Polarimeter
W. B. Iwakiri, J. K. Black, R. Cole +11
The performance of the Time Projection Chamber (TPC) polarimeter for the Polarimeter for Relativistic Astrophysical X-ray Sources (PRAXyS) Small Explorer was evaluated using polari…
VIS: the visible imager for Euclid
Mark Cropper, S. Pottinger, S. Niemi +33
Euclid-VIS is the large format visible imager for the ESA Euclid space mission in their Cosmic Vision program, scheduled for launch in 2020. Together with the near infrared imaging…
ORIGIN: Metal Creation and Evolution from the Cosmic Dawn
J. W. den Herder, L. Piro, T. Ohashi +156
ORIGIN is a proposal for the M3 mission call of ESA aimed at the study of metal creation from the epoch of cosmic dawn. Using high-spectral resolution in the soft X-ray band, ORIGI…