Responses of dayside magnetodisc reconnection to upstream solar wind (SW) ram pressure conditions. Occurrence rate distribution of equatorial dayside magnetodisc reconnection during SW compression, rarefaction, and relaxation periods, from 380 : 00–418 : 00, 418 : 00458 : 00, and 458 : 00–500 : 00 ST, respectively. The magenta lines represent an approximate outer limit of the dynamic magnetopause, calculated as the sum of the temporal average and corresponding the standard deviation of the magnetopause’s radial position in each period.