Open Access
Table 1
Observations of the Didymos-Dimorphos system in 2022 and 2023.
| Date and year 2022 | Duration (UT) | Δ (AU) | rH (AU) | α (degrees) | Pixel scale (km) | Radius 500 km (arcsec) | Seeing (arcsec) | Note |
|---|---|---|---|---|---|---|---|---|
| September 21 | 17:50–18:54 | 0.084 | 1.061 | 45.8 | 42.0 | 11.7 | 2.1 | Color |
| September 24 | 19:17–19:44 | 0.079 | 1.052 | 50.1 | 39.5 | 12.5 | 2.1 | Color |
| September 25 | 19:38–20:02 | 0.077 | 1.049 | 51.5 | 38.5 | 12.8 | 2.2 | Color |
| September 26 | 19:55–20:20 | 0.076 | 1.046 | 53.0 | 38.0 | 13.2 | 2.1 | Color |
| September 27 | 20:18–20:44 | 0.075 | 1.044 | 54.5 | 37.4 | 13.4 | 1.9 | Color |
| September 29 | 20:15–20:40 | 0.073 | 1.039 | 57.5 | 36.5 | 13.7 | 2.5 | Color |
| September 30 | 19:58–20:23 | 0.073 | 1.037 | 59.0 | 36.2 | 13.8 | 2.0 | Color |
| October 1 | 20:09–20:35 | 0.072 | 1.035 | 60.5 | 36.0 | 13.9 | 2.0 | Color |
| October 2 | 20:07–20:32 | 0.071 | 1.032 | 61.9 | 38.3 | 14.0 | 1.8 | Color |
| October 6 | 19:31–20:38 | 0.072 | 1.025 | 67.3 | 35.9 | 13.9 | 1.9 | Color |
| October 12 | 18:19–18:58 | 0.076 | 1.017 | 73.2 | 38.3 | 13.1 | 1.5 | Color |
| October 24 | 20:26–21:00 | 0.096 | 1.013 | 76.0 | 48.0 | 10.4 | 2.2 | Color |
| October 25 | 20:26–21:11 | 0.098 | 1.014 | 75.8 | 24.5 | 10.2 | 1.6 | Color |
| November 2 | 17:23–18:28 | 0.115 | 1.021 | 72.5 | 28.7 | 8.7 | 2.1 | Period |
| November 3 | 16:51–18:03 | 0.117 | 1.022 | 71.9 | 58.5 | 8.5 | 2.2 | Color/Period |
| November 12 | 17:12–20:56 | 0.136 | 1.039 | 65.3 | 68.2 | 7.3 | 1.5 | Color/Period |
| December 23 | 13:54–20:13 | 0.230 | 1.194 | 21.5 | 115.3 | 4.3 | 2.2 | Color/Period |
| December 24 | 14:12–20:00 | 0.233 | 1.199 | 20.4 | 116.8 | 4.3 | 2.0 | Period |
| December 25 | 14:23–20:10 | 0.236 | 1.204 | 19.3 | 118.3 | 4.2 | 1.9 | Period |
| 2023 | ||||||||
| January 3 | 18:32–19:53 | 0.273 | 1.250 | 10.0 | 138.4 | 3.6 | 1.6 | Color |
| January 4 | 19:10–19:29 | 0.277 | 1.255 | 9.2 | 140.9 | 3.5 | 1.5 | Color |
| January 5 | 17:33–18:48 | 0.281 | 1.261 | 8.5 | 142.9 | 3.5 | 1.6 | Color |
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