Comet Shoemaker–Levy 9 chains on the Jovian moons did not lead back to a larger crater. The impact of SL9 strongly implied that the chains were due to trains of disrupted cometary fragments crashing into the satellites. On July 19, 2009, exactly 15 years after the SL9 impacts, a new black spot about the size of the Pacific Ocean appeared in Jupiter's southern hemisphere. Thermal infrared measurements showed the impact site was warm and spectroscopic analysis detected the production of excess hot ammonia and silica-rich dust in the upper regions of Jupiter's atmosphere. Scientists have concluded that another impact event had occurred, but
Patacamaya also contains two astro-cameras an AFU-75, and CCD SBIG ST-5 among other astronomical equipment. This equipment has been extremely useful for students researching such events as the passing of Halley's Comet and the Shoemaker Levy 9 Comet. Apart from the Observatory, Patacamaya has some other smaller sources of income including a weekly Sunday fair. Agriculture in the area consists mainly of potatoes. Patacamaya is also home to the military unit 'Batallon de Tanques I Calama.' Patacamaya Patacamaya or Patak Amaya (Aymara) is a city in Bolivia, situated in the La Paz Department. It is the seat of the Patacamaya Municipality,