of the first SSP in Biochemistry was held at Purdue University in West Lafayette, Indiana. Six alumni from the previous summer successfully ran through the new experiment. In 2017, the first SSP in Biochemistry was successfully held with 24 participants. In 2022, the first SSP in Genomics took place at Purdue University with 24 participants. Through 2017, over 2,500 participants have attended 75 programs. All alumni and former faculty are "members" of the nonprofit for life, along with other members named by the Board. The Members elect Trustees annually, have access to an online database for networking, and are invited to an Annual Dinner held each fall. Astronomical work For the first 50 years of the program, students took photographic images of main-belt asteroids (between the orbits of Mars and Jupiter). Starting in 2009 students took digital images of (much fainter) near-Earth asteroids (inside the orbit of Mars). The process of orbit determination is conceptually the same in both cases. First students take a series of images of asteroids. After identifying the asteroid, its position on the image relative to known stars is carefully calculated. That relative position is then used to determine the position of the asteroid in celestial coordinates (right ascension and declination) at the exact time the image was taken. The series of positions as the asteroid moves across the sky allows the student to fit an approximate orbit to the asteroid. The measured asteroid coordinates (not the calculated orbital elements) are submitted to the Center for Astrophysics Harvard & Smithsonian. Over the decades SSP students have done their orbit determination calculations on mechanical calculators (1960s), then electronic calculators (1970s), then "mini-computers" (1980s), then personal computers (1990s and 2000s). In recent years they write their orbit determination programs in the Python programming language, employing the Gaussian method. List of alumni The following is a list of notable alumni. Jerold Krieger, 1960 (1943–2002) - Los Angeles County Superior Court judge Jerry Nelson, 1960 (1944-2017) - astronomer, the pioneer in the design of segmented mirror telescopes; project scientist for the W. M. Keck Observatory Ed Krupp, 1961 - astronomer, author, Director of Griffith Observatory in Los Angeles Ronald Kaplan, 1962 - computational linguist, Chief Scientist for Amazon Search Robert Tarjan, 1964 - Professor of Computer Science at Princeton University Mitch Kapor, 1966 - founder of Lotus Development Corporation, designer of Lotus 1-2-3 and Lotus Notes Robert D. Arnott, 1970