Table 2
All published TNO projected shape axis ratios from occultations.
| Name | Class | b/a | Deq (km) | References |
|---|---|---|---|---|
| 2003 UY117 | Resonant 5:2 | 0.65 ± 0.15 | 230 ± 26 | 1 |
| 2007 OC10 | Detached | 0.58 ± 0.16 | ![$\[\mathbf{330_{-55}^{+56}}\]$](/articles/aa/full_html/2025/05/aa53540-24/aa53540-24-eq16.png) |
This work |
| Huya | Plutino | 0.89 ± 0.03 | 411 ± 10 | 2 |
| 2002 TC302 | Resonant 5:2 | 0.85 ± 0.04 | 500 ± 19 | 3 |
| 2003 VS2(a) | Plutino | 0.79 ± 0.02 | 519 ± 10 | 4 |
| 2003 VS2(a) | Plutino | 0.81 ± 0.08 | 570 ± 31 | 5 |
| G!kún||'hòmdímà | Detached | 0.89 ± 0.08 | 641 ± 28 | 6 |
| 2003 AZ84(a) | Plutino | 0.66 ± 0.11 | 692 ± 59 | 7 |
| Varda | Resonant 15:8 | 0.93 ± 0.05 | 740 ± 20 | 8 |
| 2003 AZ84(a) | Plutino | 0.946 ± 0.005 | 764 ± 6 | 7 |
| 2002 MS4 | Hot classical | 0.93 ± 0.05 | 794 ± 25 | 9 |
| Quaoar | Hot classical | 0.880 ± 0.013 | 1087 ± 11 | 10 |
| Haumea | Resonant 12:7 | 0.668 ± 0.015 | 1393 ± 16 | 11 |
| Makemake | Hot classical | 0.95 ± 0.03 | 1466 ± 49 | 12 |
Notes. The area-equivalent diameter for each fitted ellipse is also included. We excluded cases where only a circle was fitted. We did not include the remarkable case of Arrokoth (Buie et al. 2020) due to its binary nature. Dynamical classification according to Volk & Laerhoven (2024). (a)These objects have two different occultations published with fitted ellipses. We treat them as separate data points although they are clearly not independent. References: (1) Kretlow et al. (2024a); (2) Santos-Sanz et al. (2022); (3) Ortiz et al. (2020a); (4) Vara-Lubiano et al. (2022); (5) Benedetti-Rossi et al. (2019); (6) Benedetti-Rossi et al. (2016); (7) Dias-Oliveira et al. (2017); (8) Souami et al. (2020); (9) Rommel et al. (2023); (10) Pereira et al. (2023); (11) Ortiz et al. (2017); (12) Ortiz et al. (2012).
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