Table 3: Projected mean expansion velocities of the center of the CN gas cloud. $\Delta t$ gives the time since impact and p the projected distance from the nucleus. PA lists the position angle at which the measurement was done, with respect to the projected solar direction.

PA		 date, time $\Delta t$ [s] p [104 km] v [km s-1]
0$^\circ $ July 4, 23:50 65 182 $3.75\pm0.30$ $0.58\pm0.05$
180$^\circ $ July 4, 23:50 65 182 $4.13\pm0.30$ $0.63\pm0.05$
90$^\circ $ July 5, 00:48 68 628 $3.95\pm0.37$ $0.58\pm0.05$
270$^\circ $ July 5, 00:48 68 628 $4.91\pm0.31$ $0.72\pm0.05$
0$^\circ $ July 5, 01:58 72 861 $4.35\pm0.32$ $0.60\pm0.04$
180$^\circ $ July 5, 01:58 72 861 $4.62\pm0.30$ $0.63\pm0.04$
0$^\circ $ July 5, 03:46 79 334 $4.78\pm0.32$ $0.60\pm0.04$
180$^\circ $ July 5, 03:46 79 334 $5.04\pm0.30$ $0.64\pm0.04$
0$^\circ $ July 6, 00:32 154 083 $9.91\pm1.00$ $0.64\pm0.07$
180$^\circ $ July 6, 00:32 154 083 $10.55\pm1.04$ $0.69\pm0.07$


Source LaTeX | All tables | In the text