Perrin, M., Long, J., Osborne, S., Geda, R., Sappington, B., Meléndez, M., Lajoie, C., Leisenring, J., Zimmerman, N., Brooks, K., Otor, O. J., Kulp, T., Chambers, L., & Jurling, A. STPSF (Version 2.1.0) [Computer software]. https://github.com/spacetelescope/stpsf