Table 1
Observing log.
Date | Obs. time | Observatory | r | Δ | α | λ | β | V | Mov | Exp | Fltr | Code |
---|---|---|---|---|---|---|---|---|---|---|---|---|
(UTC) | (UTC) | (see Table 2) | (au) | (au) | ![]() |
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[mag] | ″/min | [s] | ||
2021-03-02 | 02:56–03:36 | Lowell (1) | 0.9959 | 0.0078 | 51.6 | 114.6 | −25.0 | 16.4 | 25 | 10 | VR | LC01 |
2021-03-02 | 11:55–15:11 | DOAO (2) | 0.9956 | 0.0068 | 48.4 | 116.7 | −19.9 | 16.0 | 35 | 10 | I | LC02 |
2021-03-02 | 18:46–19:35 | Schiap. (3) | 0.9955 | 0.0062 | 46.2 | 118.2 | −16.2 | 15.7 | 43 | 5 | C | LC03 |
2021-03-03 | 01:58–02:22 | Lowell (1) | 0.9953 | 0.0055 | 43.2 | 120.3 | −10.7 | 15.4 | 55 | 4 | VR | LC05 |
2021-03-03 | 09:01–09:59 | Winer (5) | 0.9951 | 0.0049 | 39.9 | 122.9 | −03.4 | 15.0 | 69 | 5 | C | LC06 |
2021-03-03 | 20:00−21:49 | Mayaki (6) | 0.9948 | 0.0041 | 36.5 | 128.6 | +12.2 | 14.5 | 98 | 3 | C | LC07 |
2021-03-04 | 01:07–02:07 | Platanus (10) | 0.9946 | 0.0039 | 37.0 | 131.6 | +19.9 | 14.4 | 112 | 1(*) | C | C005 |
2021-03-04 | 02:00–02:12 | McDonald (7) | 0.9946 | 0.0039 | 37.1 | 131.9 | +20.6 | 14.4 | 112 | 5 | w | LC08 |
2021-03-04 | 19:22–20:26 | DOAO (2) | 0.9942 | 0.0041 | 52.4 | 150.8 | +51.3 | 15.0 | 98 | 5 | I | LC09 |
2021-03-05 | 02:08–02:21 | CalarAlto (8) | 0.9940 | 0.0044 | 59.0 | 161.0 | +59.1 | 15.3 | 88 | 2.5 | C | LC10 |
2021-03-05 | 03:30–03:59 | Lowell (1) | 0.9940 | 0.0045 | 60.5 | 164.0 | +60.8 | 15.5 | 84 | 4 | VR | A001 |
2021-03-05 | 06:00–06:44 | Lowell (1) | 0.9939 | 0.0047 | 63.1 | 169.6 | +63.3 | 15.8 | 77 | 4 | VR | A008 |
2021-03-05 | 06:45–06:51 | Lowell (1) | 0.9939 | 0.0047 | 63.5 | 170.4 | +63.6 | 15.8 | 76 | 4 | g | CI01 |
2021-03-05 | 06:52–06:58 | Lowell (1) | 0.9939 | 0.0047 | 63.6 | 170.6 | +63.7 | 15.8 | 76 | 4 | i | CI02 |
2021-03-05 | 06:59–07:05 | Lowell (1) | 0.9939 | 0.0047 | 63.7 | 170.8 | +63.8 | 15.8 | 76 | 4 | z | CI03 |
2021-03-05 | 11:40–12.17 | Winer (5) | 0.9938 | 0.0052 | 68.0 | 182.4 | +67.1 | 15.9 | 59 | 5 | C | A016 |
2021-03-06 | 00:37–02:32 | Shefford (9) | 0.9935 | 0.0064 | 76.7 | 214.1 | +70.3 | 16.7 | 38 | 4 | C | LC12 |
2021-03-06 | 08:34–10:46 | Winer (5) | 0.9934 | 0.0073 | 80.1 | 227.8 | +69.7 | 17.1 | 28 | 5 | C | B579 |
2021-03-07 | 08:45–08:52 | McDonald (7) | 0.9929 | 0.0100 | 86.6 | 250.1 | +66.2 | 18.2 | 17 | 4 | w | LC13 |
Notes. The table presents the subset of the observing log limited to the lightcurves which were used in the analysis. The third col. shows the shortened observatory name (full names are presented in Table 2). The next five cols. present the aspect data for the middle of the observing time: r and Δ are the distances of the asteroid from the Sun and the Earth, respectively, α is the solar phase angle, while λ and β are the geocentric, ecliptic (J2000) longitude and latitude. In the next col., an average brightness V of the asteroid, as predicted by the Horizons ephemeris, is given. Starting from the tenth col., the table gives the asteroid movement on the sky (Mov), the exposure time (Exp), and the filter used in the observations (here ‘C’ stands for a ‘clear’ filter). The last col. provides the code to locate the lightcurve in Fig. 2. (*)For the C005 lightcurve more than 2000 exposures were obtained, with a very short exposure time of 1 s. They were then averaged (five points into one), which gave a satisfactory result.
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