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Experiments on scintillator-based detection of negative dark electric matter objects, daemons, representing Planckian supermassive (about 2×10−5 g) particles that were detected in March 2000 as populating near-Earth, almost circular heliocentric orbits (NEACHOs), are being continued. The NEACHO objects hit the Earth with a velocity of about 10-15 km s−1. The results of these and new experiments (April-June 2001) are now being processed, taking into account the difference in scintillation signal shape depending on the magnitude and sign of the velocity of the daemons crossing our detector, which was purposefully made asymmetric with respect to the up-down direction of flight. The data accumulated during the experiment and processed in this way also reveal the presence of, firstly, a high-velocity (about 35-50 km s−1) daemon population whose objects can be related to a population in the Galactic disc and/or that in strongly elongated Earth-crossing heliocentric orbits and, secondly, a low-velocity (about 3-10 km s−1) population in geocentric Earth-surface-crossing orbits whose objects (GESCOs) traverse repeatedly the Earth, suffering a decrease in velocity by about 30-40% month in the process. The evolutionary relation between all these three (four?) populations is discussed. Conjectures concerning their manifestations in further observations are put forward. An analysis of possible interaction processes of daemons, which may have different velocities and directions of motion, with the detector components (ZnS(Ag) scintillator layers, tinned-iron sheets 0.3 mm thick, etc.) on the atomic (emission of Auger electrons) and nuclear (nucleon evaporation from a nucleus excited in the capture and, subsequently, the decay of its protons) levels has permitted estimation of some characteristic times. In particular, the decay time of a daemon-containing proton was found to be about 1 µs.