Results 31 to 40 of about 41,807 (281)
Last giant impact on the Neptunian system. Constraints on oligarchic masses in the trans-Saturnian region [PDF]
, 2011 Stochastic impacts by large bodies are, at present, the usually accepted mechanisms able to account for the obliquity of the ice giants. We attempt to set constraints on giant impacts as the cause of Neptune's current obliquity in the framework of modern
Agnor +52 more
core +3 more sources
Combining OC-SVMs With LSTM for Detecting Anomalies in Telemetry Data With Irregular Intervals
IEEE Access, 2020 To ensure the safety and stability of spacecrafts of which thousands of telemetry parameters are monitored, fast and accurate response to anomalies or potential hazards is very important and challenging. This task becomes more difficult when the obtained
Junfeng Wu +4 more
doaj +1 more source
A Real-Time Linear Prediction Algorithm for Detecting Abnormal BDS-2/BDS-3 Satellite Clock Offsets
Remote Sensing, 2023 Due to space environment interference, imperfect data processing model, and the performance of atomic clocks, real-time satellite clock products often contain outliers or irregular biases.
Yaping Gao +6 more
doaj +1 more source
NEOWISE: Observations of the Irregular Satellites of Jupiter and Saturn [PDF]
, 2015 We present thermal model fits for 11 Jovian and 3 Saturnian irregular satellites based on measurements from the WISE/NEOWISE dataset. Our fits confirm spacecraft-measured diameters for the objects with in situ observations (Himalia and Phoebe) and ...
Bauer, James M. +7 more
core +2 more sources
Aerial Imagery Based on Commercial Flights as Remote Sensing Platform
Sensors, 2020 Remote sensing is commonly performed via airborne platforms such as satellites, specialized aircraft, and unmanned aerial systems (UASs), which perform airborne photography using mounted cameras.
Toni Mastelic +3 more
doaj +1 more source
Impact Rates in the Outer Solar System
The Planetary Science Journal, 2023 Previous studies of cometary impacts in the outer solar system used the spatial distribution of ecliptic comets (ECs) from dynamical models that assumed ECs began on low-inclination orbits (≲5°) in the Kuiper Belt.
David Nesvorný +4 more
doaj +1 more source
A REGION VOID OF IRREGULAR SATELLITES AROUND JUPITER [PDF]
The Astronomical Journal, 2008 An interesting feature of the giant planets of our solar system is the existence of regions around these objects where no irregular satellites are observed. Surveys have shown that, around Jupiter, such a region extends from the outermost regular satellite Callisto, to the vicinity of Themisto, the innermost irregular satellite.
Haghighipour, N., Jewitt, D.
openaire +2 more sources
THE 3 μm SPECTRUM OF JUPITER's IRREGULAR SATELLITE HIMALIA [PDF]
The Astrophysical Journal, 2014 We present a medium resolution spectrum of Jupiter's irregular satellite Himalia covering the critical 3 $ $m spectral region. The spectrum shows no evidence for aqueously altered phyllosilicates, as had been suggested from the tentative detection of a 0.7 $ $m absorption, but instead shows a spectrum strikingly similar to the C/CF type asteroid 52 ...
Brown, M. E., Rhoden, A. R.
openaire +3 more sources
IMPROVED INDOOR POSITIONING USING FINGERPRINT TECHNIQUE AND WEIGHTED K-NEAREST NEIGHBOUR [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023 Global Navigation Satellite Systems are not effective when there is no direct line of sight between the user and the satellites, such as indoor environments and dense urban areas. Today, location-based services are used significantly due to their utility
S. Naderi Salim +6 more
doaj +1 more source
Ionospheric plasma irregularities studied with Swarm satellites [PDF]
E3S Web of Conferences, 2018 To study and characterise the ionospheric plasma irregularities at all latitudes, one can employ in-situ measurements by satellites in polar orbits, such as the European Space Agency’s Swarm mission. Based on the Swarm data, we have developed the Ionospheric Plasma IRregularities (IPIR) product for a global characterisation of ionospheric ...
Miloch, Wojciech Jacek +6 more
openaire +5 more sources