Table 3
Ages of the C-type families estimated from our orbital model.
| Family | t↓ | Age | t↑ | Notes |
|---|---|---|---|---|
| Myr | Myr | Myr | ||
| Karin (H) | 5.7 + 0.1 | 50 | young Ω, ω | |
| Koronis2 (H) | 7.6 | 7.6 ± 0.2 | 30 | young Ω |
| Massalia (L) | 18.7 | 250 | ||
| Adeona (CM) | 1000 | |||
| Aeolia (?) | 12 | 25 ± 5 | 45! | young e |
| Aëria (M) | >200 | 500 | Ceres | |
| Alauda (CI) | ~4000 | |||
| Astrid (CM) | 15 | >150 | 230c | Ceres |
| Baptistina (?) | 400 | |||
| Beagle (CI) | 8 | 30 ± 10 | 90 | young i, YORP |
| Brangäne(M) | 20 | 45 ± 15 | 70 | young a, e |
| Brasilia (M) | 16.5 | >100 | 400c | Ceres |
| Brucato (?) | 700 | |||
| Chloris (CM) | 900 | YORP | ||
| Clarissa (CI) | 14 | 50 ± 10 | 60! | old e |
| Dora (CM) | 650 | |||
| Elfriede (CI) | 35 | 55 ±20 | 230 | cf. e |
| Emma (IDP) | 750 | old e, i | ||
| Eos (CO/CV/CK) | 3000 | old e, i | ||
| Erigone (CM) | 200 ± 30 | 250 | YORP | |
| Euphrosyne (CI) | 1900 | old e, i | ||
| Hoffmeister (CI) | 23 | >100 | 350c | Ceres |
| Hungaria (E) | 150 | |||
| Hygiea (CI) | 3400 | |||
| Iannini (Aca/Lod) | 4 | 6±2 | 20 | young Ω, e, i |
| Kalliope (M) | 2700 | depleted | ||
| König (CM) | 14 | 22 ±2 | 100 | young Ω, i |
| Lixiaohua (CI) | >150 | 600 | old i | |
| Misa (CI) | 9.5 | ≳50 | 150 | old e, i, YORP |
| Naema (CI) | 18 | 150 ± 50 | 350C | old e |
| Nemesis (CI) | >10 | 700 | old a, e | |
| Padua (IDP) | 700 | |||
| Pallas (B) | 1800 | depleted | ||
| Polana (CI) | 2400 | |||
| Sylvia (P) | 1600 | |||
| Themis (CI) | ~4000 | |||
| Theobalda (CM) | 5 | 20 ± 5 | 300 | young i |
| Tina (M) | 15 | 200 ± 50 | 250 | old i |
| Ursula (CI) | 2000 | |||
| Veritas (CM) | 8.3 ±0.1 | 270 | young Ω, e | |
| Vesta (HED) | 1400 | |||
| Vibilia (CM) | 700 | YORP | ||
| Watsonia (CO/CV/CK) | 1900 | depleted | ||
| Witt (?) | 700 | young Ω? |
Notes.c collisional age is significantly shorter,C collisional age is significantly longer. For comparison, Astrid is (140 ± 30) Myr old according to Carruba (2016), Clarissa (56 ± 6) Myr (Lowry et al. 2020), Eos (1700 ± 200) Myr (Brož & Morbidelli 2013), Erigone (280 ± 100) Myr (Vokrouhlický et al. 2006), Euphrosyne (280 ± 100) Myr (Yang et al. 2020a), Hoffmeister (220 ± 50) Myr (Carruba et al. 2017a), Iannini (6 ± l)Myr (Carruba et al. 2018), Kalliope (900 ± 100)Myr (Brož et al. 2022), Lixiaohua (155 ± 36) Myr (Novaković et al. 2010), Pallas (1700 ± 300) Myr (Marsset et al. 2020), Sylvia > 1000 Myr (Vokrouhlický et al. 2010), Theobalda (6.9 ± 2.3) Myr (Novaković 2010), where the value corresponds to our lower limit, and Tina (170 ± 30) Myr (Carruba & Morbidelli 2011).
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