Table 1.
Observational circumstances and physical properties of the sample.
| Object | Mid-obs. time (UT) | ET (s) | V (mag) | Δ (au) | r (au) | α (°) | Class | D (km) ( * ) | pV |
|---|---|---|---|---|---|---|---|---|---|
| (341520) Mors–Somnus | 2023-01-22 13:05:12 | 2451 | 21.65 | 28.65 | 29.05 | 1.80 | P | 116/110 | < 0.12 |
| (79360) Sila-Nunam | 2022-11-22 16:37:29 | 2451 | 21.84 | 43.37 | 43.42 | 1.31 | CC | 343 ( * ) | 0.09 |
| (385437) 2003 GH55 | 2023-07-22 15:13:30 | 2568 | 22.34 | 40.75 | 41.28 | 1.23 | CC | 178 | 0.15 |
| (523591) 2001 QD298 | 2023-06-12 16:17:09 | 2684 | 22.65 | 42.12 | 42.14 | 1.39 | CC | 233 | 0.07 |
| (469705) Kágára | 2023-05-08 20:28:04 | 2684 | 22.36 | 39.60 | 40.22 | 1.39 | CC | 174 ( * ) | 0.16 |
| (66652) Borasisi | 2022-11-05 05:34:43 | 2684 | 22.27 | 41.78 | 42.48 | 1.16 | CC | 163 ( * ) | 0.24 |
| (444745) 2007 JF43 | 2023-03-05 23:26:52 | 1459 | 21.24 | 36.48 | 36.5 | 1.57 | P | – | – |
| (38628) Huya | 2023-03-13 12:55:29 | 759 | 19.65 | 28.91 | 28.95 | 1.98 | P | 458 ( * ) | 0.08 |
| (47171) Lempo | 2023-01-22 11:15:31 | 820 | 20.03 | 30.53 | 30.84 | 1.76 | P | 393 ( * ) | 0.08 |
| (612533) 2002 XV93 | 2022-11-03 13:42:36 | 1225 | 20.85 | 37.64 | 38.13 | 1.32 | P | 549 | 0.04 |
| (120216) 2004 EW95 | 2023-02-22 01:32:48 | 1225 | 20.83 | 27.16 | 27.16 | 2.21 | P | 291 | 0.04 |
| (455502) 2003 UZ413 | 2023-02-14 05:31:20 | 1404 | 21.00 | 44.62 | 44.70 | 1.27 | P | 670 | 0.07 |
Notes. “Mid-obs. time (UT)” refers to the mid-observation time; “ET (s)” is the total exposure time in seconds for each object; “V (mag)” is the visual magnitude at the time of the observation; “Class” is the dynamical classification, with P = plutino and CC = cold classical; D is the diameter; and pV is the visible geometric albedo. Albedos and diameters for Mors–Somnus are from Thirouin et al. (2014) and from the “TNOs are Cool” database (Müller et al. 2020) for the other TNOs. ( * )For TNBs in our sample, the diameter shown is for the combined system.
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