| Station | Epoch | No. of obs. | HD
 /
|
Passbands | Source |
| No. | HJD-2 400 000 | U/B/V |
|
used | |
| 23 | 38295.8-38310.8 | 3/3/3 | all-sky | UBV | Johnson et al. (1966) |
| 30 | 39745.9-44892.8 | 7 | all-sky | m58 | Schuster & Guichard (1984); Mitchell & Johnson (1969) |
| 26 | 40452.6-40458.6 | 2/2/2 | all-sky | UBV | Haupt & Schroll (1974) |
| 1 | 45212.6-51512.3 | 343/343/343 | 4142/6114 | UBV | Harmanec et al. (1997); Pavlovski et al. (1997) |
| 61 | 47867.7-49038.4 | -/-/148 | all-sky | V | Perryman & ESA (1997) |
| 1 | 51943.3-55104.4 | 372/372/372 | 4142/6114 | UBV | this paper |
Notes. Abbreviations of column ``Stations'' (numbers are running
numbers of the observing stations from the Ondrejov data archives):
01: Hvar Observatory, 0.65-m Cassegrain reflector;
61: Hipparcos 
magnitude transformed to Johnson V after Harmanec (1998);
23: Catalina Observatory, 1P21 tube;
26: Chiran Station of the Haute Provence Observatory, 0.60-m reflector,
Lallemand tube;
30: San Pedro Mártir, 0.84 & 1.5-m reflectors.
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