Photometric observations of 9 near-earth objects

We present new CCD observations of nine Near-Earth Asteroids carried out be tween February, 1999 and July, 2000. The bulk of the data was acquired thro ugh an R-C filter, while the minor planet 11 405 was observed without filte r. We could determine synodic periods and amplitudes for 5 asteroids, 699: 3.(h)3, 0.(m)18; 1866: 2.(h)7, 0.(m)12; 1999 JD6: 7.(h)68, 1.(m)2; 2000 GK1 37: 4.(h)84, 0.(m)27; 2000 NM: 9.(h)24, 0.(m)30. Based on observations take n at different phases, we could infer a phase parameter m of 0.018 +/- 0.00 5 for 1865 Cerberus. An epoch-method yielded a sidereal period of 0.(d)2702 4003(5) for this object with retrograde rotation. The remaining 3 objects h ave only partial coverage, thus no firm conclusion on their synodic period is possible.