Figure 6. The V-band differential light curves for GRO J0422+32 observed during the secondary outbursts. Data have been folded using the period P = 0.212140 d and an epoch for  = 0.0 of T₀ = HJD 2448991.060, which corresponds to an inferior conjunction of the M star 3160 cycles earlier than the value used for Figs. 4 and 5.
Panel a (top) shows the data for 1993 January 3, 4, 14, 15, 18, 19, 22 and 23 (were excluded : January 20, 21).
Panel b (middle) shows the data for 1993 February 10, 11, 12, 13, 15, 17, 18, 19 and 20 (were excluded : February 14, 16).
Panel c (bottom) shows the data for 1993 December 17 (crosses) and 21 (circles).