Georg Kirchner's research while affiliated with Austrian Academy of Sciences (OeAW) and other places
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Publications (4)
High-precision satellite laser ranging measurements to Galileo retroreflector panels are analyzed to determine the angle of incidence of the laser beam based on specific orientations of the panel with respect to the observing station. During the measurements, the panel aligns with respect to the observing station in such a way that multiple retrore...
The tumbling motion of defunct satellite TOPEX/Poseidon (T/P) is governed by the μ-scale Solar Radiation Pressure (SRP) torque that spun up the satellite from the initial, nadir-pointing to the current fast spinning state [1]. In this paper, we advance the methods of Quanta Photogrammetry (QPM) in an effort to determine satellite attitude parameter...
Using ultra-high repetition rate lasers ( $\ge {100}\;{\rm kHz}$ ≥ 100 k H z ) is one of the most promising strategies for the next generation of satellite laser ranging (SLR) systems. We present successful 1 MHz repetition rate SLR to targets up to inclined geosynchronous orbits at nighttime. Among those, a maximum return rate of up to 53% was ach...
A Galileo retroreflector panel was mounted on a tripod 32 km outside of the satellite laser ranging station Graz. The panel was tilted to achieve laser beam incident angles between \(0^{\circ }\) and approx. \(18^{\circ }\) while simultaneously doing distance measurements. At incident angles larger than approx. \(8^{\circ }\) it was possible to ide...
Citations
... A related technique is reflectance spectroscopy [6,7], where a higher spectral resolution provides characteristic spectra of the observed surfaces that can be used as fingerprints of space components. Recently, a new method called quanta photogrammetry was successfully applied to study the attitude of the defunct Topex/Poseidon satellite [8]. Laser ranging is another technique available to study the attitude motion [9,10]. ...
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... Relativistic experiments (gravitational redshift, dark matter, Lense-Thirring effect) could be performed using different satellites (Delva et al. 2019;Ciufolini et al. 2019). Future trends in the laser ranging community include further increasing the repetition rate (Dequal et al. 2021;Wang et al. 2021;Long et al. 2022), possibly performing mm-precision laser ranging of satellites and space debris (Cordelli et al. 2020;Steindorfer et al. 2020) with one system. ...
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... Some users necessitate increased tracking on specific satellites, while others prefer sparse tracking across the entire GNSS satellite group. Additionally, specific tracking campaigns are requested, such as the study of radiation effects during Earth shadow passages (Steindorfer et al. 2019;Bury et al. 2019b). SLR tracking of GNSS satellites is very challenging because of the low return rate of laser pulses at GNSS heights and a large number of available targets, which results in sparse SLR observations of GNSS satellites. ...
