Binary Asteroid Parameters

We compile parameters of binary systems among near-Earth, Mars-crossing, main belt, and Trojan asteroids. A construction of the list is described in the paper:
Pravec, P., Harris A.W., Binary Asteroid Population. 1. Angular Momentum Content, Icarus 190 (2007) 250-259 (get reprint).
The 2011-07 update was made for the paper Pravec, P., and 41 colleagues, 2012. Binary asteroid population. 2. Anisotropic distribution of orbit poles of small, inner main-belt binaries, Icarus 218 (2012) 125-143, which is available on following DOI.
The 2015-09 update was made for the paper Pravec, P., et al., 2016. Binary asteroid population. 3. Secondary rotations and elongations, Icarus 267 (2016) 267-295, that is available at following DOI.

The datasets for following release dates are available:
2019 01 06 (update for the Pravec et al. 2019, Icarus, submitted)
2015 09 18 (update for the Pravec et al. 2016 paper mentioned above)
2013 09 25 (update complete for binaries with D_1 < 20 km)
2011 07 01 (update for the Pravec et al. 2012 paper mentioned above)
2010 04 08 (update complete for binaries with D_1 < 20 km)
2007 12 04
2007 05 14
2006 10 15 (the release used in the paper Pravec and Harris mentioned above)

Some questions/answers:

Q: Will you add some more parameters to your data set in future?
A: Yes, when and as a need to use them for studies of the binary population properties arises.

Q: Do you include data on multiple (triple) systems?
A: No, so far we handle only binaries, i.e., systems of two bodies. There is one known triple system, 87 Sylvia (Marchis et al. 2005, Nature 436, 822). We have entered into our database data for the larger of its two satellites, as it dominates the Sylvia's satellite system so it should be good as the first order approximation for some purposes.

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