Test Orbital Populations for LSST Cadence Operation SImulation Comparisons
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mbc.txt(Kelley, Hsieh, Snodgrass): Asteroids with orbits similar to main-belt comets (MBC), based on the analysis of Kim et al. (2018, AJ 155, 142). 2000 orbits were picked randomly from the Minor Planet Center based on the following criteria:- 3.0 < a < 3.278 - Outer main-belt asteroids, avoiding the 2:1 mean-motion resonnance with Jupiter.
- e > 0.15 - Eccentric orbits that have perihelion distances which favor water sublimation.
- i < 22 - Avoid contamination from Jupiter-family comets.
- observation arc length > 100 days - Avoid low-quality orbits.
- H > 15 mag - Cometary activity only seen in smaller objects (with Ceres as an exception).
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Kreutz.txt(Ye): 2000 synthetic Kreutz sungrazing comets generated using the statistical orbit model in Ye et al. (2014, AJ, 796, 83). Note that the model does not include size information and all$H$ are set to 26. -
2-1-leading-small.txt(Volk et al., 2016; https://ui.adsabs.harvard.edu/?#abs/2016AJ....152...23V): Simplified model of objects in the leading libration island of Neptune's 2:1 resonance. Evenly samples the eccentricity and libration amplitudes possible in that island. -
2-1-trailing-small.txt(Volk et al., 2016; https://ui.adsabs.harvard.edu/?#abs/2016AJ....152...23V): Simplified model of objects in the trailing libration island of Neptune's 2:1 resonance. Evenly samples the eccentricity and libration amplitudes possible in that island. -
5-1-leading-input.txt: Simplified model of objects in the leading libration island of Neptune's 5:1 resonance, scaled from the 2:1 leading island model in Volk et al., 2016. -
5-1-trailing-input.txt: Simplified model of objects in the trailing libration island of Neptune's 5:1 resonance, scaled from the 2:1 leading island model in Volk et al., 2016. -
5-1-symmetric-input.txt: Simplified model of objects in the symetric libration island of Neptune's 5:1 resonance, scaled from the 2:1 symmetric island model in Volk et al., 2016. -
ekbo-uniform-input-small.txt: Simplified model of non-clustered extreme Kuiper belt objects. They are uniformly distrivuted from a=150-160 au and from perihelion distance q=40-60 au. All orbital angles are uniformly distributed.