# FAMILIES_TABLE.txt # Families: ages, parent body sizes and escape velocities. # Miroslav Broz (miroslav.broz@email.cz), Feb 10th 2012 # 1. designation # 2. name # 3. cutoff velocity v_cutoff (m/s) # 4. number of members # 5. mean geometric albedo p_V, a letter "w" denotes we used WISE data to deterine the median or mean albedo (and improve membership) # 6. taxonomic classification # 7. parent body size (km), an additional "c" letter indicates that we prolonged the SFD slope downto zero D # 8. PB size from SPH simulations (Durda et al. 2007), a letter "r" denotes a revised/new value # 9. LF/PB volumetric ratio (our estimate and also the value inferred from D_Durda - the range is given in this case) # 10. escape velocity (m/s) # 11. SFD slope_1 (for larger D) # 12. slope_2 (for smaller D) # 13. value of the C parameter: 0.2 H = log(delta a/C) (Vokrouhlicky et al. 2006) # 14. age (Gyr) +- uncertainty # 15. notes, refs # dsg name v_cutoff N_members p_V tax. D_PB D_Durda LF/PB v_esc slope_1 slope_2 C (10^-4 AU) age refs # Nesvorny et al. (2005) 3 Juno 50 449 0.250 S 233 ? 0.999 139 -4.9 -3.2 0.3-0.7 <0.7 +- 0 cratering 4 Vesta 60 11169 0.351w V 530 425! 0.995 314 -4.5 -2.9 2-3 <3.0 +- 0 old? but steep SFD, cratering !!! 8 Flora 60 5284 0.304w S 150c 160 0.81-0.68 88 -3.4 -2.9 - 1.0 +- 0.5 cut by nu_6 resonance, LL chondrites 10 Hygiea 70 3122 0.055 C,B 410 442 0.976-0.78 243 -4.2 -3.2 - 2.0 +- 1.0 LHB? cratering 15 Eunomia 50 2867 0.187 S 259 292 0.958-0.66 153 -5.6 -2.3 - 2.5 +- 0.5 LHB? Michel et al. (2003) 20 Massalia 40 2980 0.215 S 146 144 0.995 86 -5.0 -3.0 0.2-0.3 0.3 +- 0.1 24 Themis 70 3581 0.066 C 268c 380-430! 0.43-0.09 158 -2.7 -2.4 - 2.5 +- 1.0 LHB? PB size? 44 Nysa_(Polana) 60 9957 0.278w S 81c ? 0.65 48 -6.9 -2.6(0.5) 0.5-1.5 <1.5 +- 0 overlaps with (142) Polana !!! 46 Hestia 65 95 0.053 S 124 153 0.992-0.53 74 -3.3 -2.0 0.1-0.2 <0.2 +- 0 cratering, close to J3/1 resonance 87 Sylvia 110 71 0.045 C/X 261 272 0.994-0.88 154 -5.2 -2.4 - 1.0 to 3.8 LHB? cratering, Cybele, Vokrouhlicky et al. (2010) 128 Nemesis 60 654 0.052 C 189 197 0.987-0.87 112 -3.4 -3.3 0.2-0.3 0.2 +- 0.1 137 Meliboea 95 199 0.054 C 174c 240-290! 0.59-0.20 102 -1.9 -1.8 2-3 <3.0 +- 0 old? !!! 142 Polana_(Nysa) 60 3443 0.055w C 75 100? 0.42 45 -7.0 -3.6 0.5-1.5 <1.5 +- 0 overlaps with (44) Nysa !!! 145 Adeona 50 1161 0.065 C 171c 185 0.69-0.54 101 -5.2 -2.8 0.4-0.9 0.7 +- 0.5 cut by J5/2 resonance 158 Koronis 50 4225 0.147 S 122c 170-180 0.024-0.009 68 -3.6(0.3) -2.3 - 2.5 +- 1.0 LHB? 163 Erigone 60 1059 0.056 C/X 79 114 0.79-0.26 46 ? -3.6 0.2-0.3 0.3 +- 0.2 170 Maria 80 3094 0.249w S 107c 120-130 0.070-0.048 63 -2.5(0.3) -2.8 - 3.0 +- 1.0 LHB? 221 Eos 50 5976 0.130 K 208c 381! 0.13-0.020 123 -3.5 -2.1 1.5-2.0 1.3 +- 0.2 283 Emma 75 345 0.050 C/X 152 185 0.92-0.51 90 ? -3.2 0.5-1.0 <1.0 +- 0 satellite 293 Brasilia 60 282 0.175w C/X 34 ? 0.020 20 -1.4(0.5) -3.7 0.15-0.3 0.05 +- 0.04 (293) is interloper 363 Padua_(Lydia) 50 596 0.097 C/X 76 106 0.045-0.017 45 -1.8 -3.0 0.4-0.6 0.3 +- 0.2 396 Aeolia 20 124 0.171 C/X 35 39 0.966-0.70 20 ? -4.3 0.05-0.1 <0.1 +- 0 cratering 410 Chloris 90 259 0.057 C 126c 154 0.952-0.52 74 ? -2.1 0.5-1.0 0.7 +- 0.4 490 Veritas - - - C,P,D - 100-177 - - - - - 0.0083 +- 0.0005 (490) is interloper? (Michel et al. 2011) 569 Misa 70 543 0.031 C 88c 117 0.58-0.25 52 -3.9 -2.3 0.5-0.7 0.5 +- 0.2 606 Brangane 30 81 0.102 S 37 46 0.92-0.48 22 ? -3.8 0.01-0.1 0.05 +- 0.04 cut by J3/1 resonance 668 Dora 50 837 0.054 C 85 165! 0.031-0.004 50 -4.2 -1.9 0.4-0.9 0.5 +- 0.2 808 Merxia 50 549 0.227 S 37 121! 0.66-0.018 22 -2.7 -3.4 0.3-0.5 0.3 +- 0.2 832 Karin - - - S - 35-40 - - - - - 0.0058 +- 0.0002 845 Naema 30 173 0.081 C 77c 81 0.35-0.30 46 -5.2 -2.9 0.15-0.25 0.1 +- 0.05 847 Agnia 40 1077 0.177 S 39 61 0.38-0.10 23 -2.8 -3.1 0.2-0.4 0.2 +- 0.1 1128 Astrid 50 265 0.079 C 43c ? 0.52 25 -1.7 -2.6 0.1-0.2 0.1 +- 0.05 1272 Gefion 60 1947 0.20 S 74c 100-150! 0.001-0.004 60 -4.3 -2.5 - 0.48 +- 0.05 Nesvorny et al. (2009), L chondrites 1400 Tirela 80 1001 0.070 S 86 - 0.12 86 -4.2 -3.4 0.5-1 <1.0 +- 0 1658 Innes 70 621 0.246w S 27 ? 0.14 16 -4.9 -3.5 0.4-0.7 <0.7 +- 0 (1644) Rafita is interloper 1726 Hoffmeister 40 822 0.035 C 93c 134 0.022-0.007 55 -4.5 -2.7 0.2-0.4 0.3 +- 0.2 3556 Lixiaohua 60 439 0.044w C/X 62 120-220 0.029-0.001 35 -6.1 -3.3 0.2-0.3 0.15 +- 0.05 Novakovic et al. (2010), if large D_Durda must be older !!! 3815 Konig 60 177 0.044 C 33 ? 0.32 20 ? -3.0 0.05-0.1 <0.1 +- 0 (1639) Bower is interloper 4652 Iannini - - - S - - - - - - - 0.005 +- 0.005 9506 Telramund 40 146 0.217w S 22 - 0.05 13 -3.9 -3.7 0.1-0.5 <0.5 +- 0 18405 1993_FY12 50 44 0.171w C/X 15 - 0.23 15 -2.4 -2.4 0.1-0.2 <0.2 +- 0 cut by J5/2 resonance 158 Koronis_(2) - - - S 35 - - - - - - 0.015 +- 0 cratering, Molnar & Haegert (2009) 298 Baptistina 50 1249 0.160w X 36c 95? 0.17 21 -3.6 -2.4 0.2-0.3 <0.3 +- 0 buried in (8) Flora 434 Hungaria 200 4598 0.35 E 25 - 0.15 15 -5.9 -3.1 - 0.5 +- 0.2 Hungaria, Warner et al. (2010) 627 Charis 80 235 0.081 S >60 - 0.53 35 ? -3.4 0.5-1.0 <1.0 +- 0 778 Theobalda 60 154 0.060 C 97c - 0.29 57 ? -2.9 0.1-0.3 0.007 +- 0.002 Novakovic (2010), contradicting D_PB and young age? !!! # Nesvorny, PDS node (2010) 302 Clarissa 30 75 0.054 C 39 - 0.96 23 ? -3.1 0.05-0.1 <0.1 +- 0 cratering 656 Beagle 24 63 0.089 C 64 - 0.56 38 -1.3 -1.4 0.1-0.2 <0.2 +- 0 752 Sulamitis 60 191 0.042 C 65 - 0.83 39 -6.5 -2.3 0.2-0.4 <0.4 +- 0 1189 Terentia 50 18 0.070 C 56 - 0.990 33 ? -2.6? 0.1-0.2 <0.2 +- 0 cratering 1892 Lucienne 100 57 0.223w S 14 - 0.71 8 ? -4.4 0.1-0.3 <0.3 +- 0 7353 Kazvia 50 23 0.206w S 16 - 0.57 8 ? -1.8 0.05-0.1 <0.1 +- 0 10811 Lau 100 15 0.273w S 11 - 0.77 5 ? -2.8 0.05-0.1 <0.1 +- 0 18466 1995_SU37 40 71 0.241w S 14 - 0.045 7 ? -5.0 0.2-0.3 <0.3 +- 0 # Nesvorny & Vokrouhlicky (2006) - young clusters in osculating-element space 1270 Datura - - - S - - - - - - - 0.00045 to 0.00060 Vokrouhlicky et al. (2009) 14627 Emilkowalski - - - C/X - - - - - - - 0.00019 to 0.00025 16598 1992_YC2 - - - S - - - - - - - 0.00005 to 0.00025 21509 Lucascavin - - - S - - - - - - - 0.0003 to 0.0008 2384 Schulhof - - - S - - - - - - - 0.0007 to 0.0009 Vokrouhlicky & Nesvorny (2011) # Parker et al. (2008) 27 Euterpe 70 268 0.260w S 118c - 0.998 70 -2.9 -2.2 0.5-1.0 <1.0 +- 0 cratering !!! 375 Ursula 80 777 0.057w C 203c 240-280 0.71-0.43 120 -4.1 -2.3 2.0-3.5 <3.5 +- 0 old? !!! 1044 Teutonia 50 1950 0.343 S 27-120 - 0.17-0.98 16-71 -3.5 -3.9 0.2-0.5 <0.5 +- 0 depends on (5) Astraea membership 1296 Andree 60 401 0.290w S 17-74 - 0.010-0.95 10-43 ? -2.9(0.5) 0.5-1.0 <1.0 +- 0 depends on (79) Eurynome membership, (1296) is interloper? !!! 2007 McCuskey 34 236 0.06 C 29 - 0.41 17 ? -5.6 0.2-0.5 <0.5 +- 0 overlaps with (44) Nysa/Polana 2085 Henan 54 946 0.200w S 27 - 0.13 16 -4.1 -3.2 0.5-1.0 <1.0 +- 0 !!! 2262 Mitidika 83 410 0.064w C 49-79c - 0.037-0.81 26-46 -4.5 -2.2 0.5-1.0 <1.0 +- 0 depends on (785) Zwetana membership, (2262) is interloper, overlaps with (3) Juno !!! # Carruba (2010), Novakovic et al (2011) - high-I families 2 Pallas 200 64 0.163 B 498c - 0.9996 295 ? -2.2 0.5-1.5 <0.5 +- 0 high-I, cratering 25 Phocaea 160 1370 0.22 S 92c - 0.54 55 -3.1 -2.4 1.5-3.0 <2.2 +- 0 old? high-I/e, cut by nu_6 resonance, Carruba (2009) !!! 148 Gallia 150 57 0.169 S 98 - 0.058 58 ? -3.6 0.4-0.6 <0.45 +- 0 high-I 480 Hansa 150 651 0.256 S 60 - 0.83 35 -4.9 -3.2 1.5-2.0 <1.6 +- 0 high-I 686 Gersuind 130 178 0.146 S 52c - 0.48 40 ? -2.7 0.8-1.0 <0.8 +- 0 high-I, Gil-Hutton (2006) 945 Barcelona 110 129 0.248 S 28 - 0.77 16 ? -3.5 0.2-0.3 <0.35 +- 0 high-I, Foglia & Masi (2004) 1222 Tina 110 37 0.338 S 21 - 0.94 12 ? -4.1 0.1-0.2 <0.15 +- 0 high-I 4203 Brucato - - - - - - - - - - - <1.3 +- 0 in freq. space # Foglia & Masi (2004) 31 Euphrosyne 100 851 0.056 C 259 - 0.97 153 -4.9 -3.9 1.0-1.5 <1.5 +- 0 cratering, high-I !!! 702 Alauda 120 791 0.070 B 218c 290-330! 0.025 129 -3.9 -2.4 2.5-3.5 <3.5 +- 0 old? high-I, cut by J2/1 resonance, satellite (Margot & Rojo 2007) !!! # Vokrouhlicky et al. (2010) - Cybele region, non-existent today! 107 Camilla ? ? 0.054 - >226 ? ? ? ? ? - 3.8? +- 0 Cybele, non-existent, LHB? 121 Hermione ? ? 0.058 - >209 ? ? ? ? ? - 3.8? +- 0 Cybele, non-existent, LHB? # Broz & Vokrouhlicky (2008) - J3/2 resonance 153 Hilda 150 400 0.044 C 200 - 0.8 118 ? -2.8 - 3.8 +- 1.0 Hildas, LHB 1911 Schubart 60 275 0.025 C 130 - 0.2 77 ? -2.7 - 1.7 +- 0.7 Hildas # Broz & Rozehnal (2011) - Trojans 3548 Eurybates 50 171 0.055 C/P 110 - - - - - - 1.0 to 3.8 Trojans, old? 4709 Ennomos 100 34 0.15? - 67 - - - - - - 1.5 +- 0.5 Trojans 9799 1996 RJ 20 9 0.058 - - - - - - - - - +- 0 Trojans, young? very compact # new suggested families 1303 Luthera 100 142 0.043 X 92 - 0.81 54 -3.9 -2.7 0.3-0.5 <0.5 +- 0 above (375) Ursula 1547 Nele 20 57 0.311w X 19 - 0.85 11 ? -2.8(0.3) 0.02-0.04 <0.04 +- 0 close to (3) Juno 2732 Witt 60 985 0.260w S 25 - 0.082 15 -4.0(0.3) -3.8 0.5-1.0 <1.0 +- 0 only part with sin I > 0.099, above (363) Padua # less-certain new families in the "pristine MB" 81 Terpsichore 120 70 0.052 C 119 - 0.993 71 ? -4.4 0.1-0.5 <0.5 +- 0 younger? cratering 709 Fringilla 140 60 0.047 X 99c 130-140 0.93-0.41 59 -6.2 -1.7 1.5-2.5 <2.5 +- 0 old? !!! 918 Itha 140 63 0.23 S 38 - 0.16 22 -2.7 -1.5 1.0-1.5 <1.5 +- 0 strange SFD !!! 5567 Durisen 100 18 0.044w X 42 - 0.89 25 ? -1.7 0.3-0.5 <0.5 +- 0 strange SFD 5614 Yakovlev 100 34 0.05 C 22 - 0.28 13 ? -3.2 0.1-0.2 <0.2 +- 0 12573 1999NJ53 40 13 0.190w C 15 - 0.13 9 ? -2.0(0.5) 0.3-0.6 <0.6 +- 0 incomplete SFD 15454 1998YB3 50 14 0.054w C 21 - 0.41 13 ? -1.6(0.3) 0.1-0.5 <0.5 +- 0 strange SFD 15477 1999CG1 110 144 0.098w S 25 - 0.065 14 ? -4.6(0.5) 1.0-1.5 <1.5 +- 0 !!! 36256 1999XT17 60 30 0.210w S 17 - 0.037 10 ? -1.4(0.5) 0.2-0.3 <0.3 +- 0 strange SFD