Orbits of Photographic Meteors

100 Prairie Network aphelia aphelion distances asteroidal origin Babadzhanov and Kramer bodies bright meteors bulk density C.A. Tougas cameras classes of orbits comets determine Detonating bolide distances périhéliennes Distribution of geocentric Distribution of orbital dividing line duration elements of Hawkins-Southworth elongation of radiant faible brillance faint meteors Figure fireball orbits Geocentric elongation groups Gunther Schwartz Hawkins and Southworth high-density asteroidal material Jacchia and Whipple Jupiter km/sec I 42 large orbits low-density luminous efficiency McCrosky and Posen McCrosky-Posen sporadics median value météores de faible meteorites meteoroid number-magnitude relationship observational error orbital elements ORBITS OF PHOTOGRAPHIC perihelion distances photographic meteors photometry physical Prairie Network objects radiant for Prairie radiant versus heliocentric Richard E shower meteors small-camera meteor Smithsonian Astrophysical Observatory solar system sporadic meteors suggest Super-Schmidt data Super-Schmidt meteors Super-Schmidt orbits terminal mass velocity for 100 Verniani versus heliocentric velocity Whipple and Hughes болидов об'ектов орбит Очевидность перигелия тусклых метеоров