A spacecraft (200, 300), comprising: at least two modules (212, 214; 312, 314), each said module comprising: a first panel and a third panel suitable for substantially facing, in an on-orbit configuration, respectively, toward north and south and having a width suitable for alignment in an east-west direction (EW width); and a second and a fourth panel suitable for substantially facing, in the on-orbit configuration, respectively, east and west and having a width suitable for alignment in the north-south direction (NS width), characterized in that in each of the on-orbit configuration and the launch configuration: each said module has a respective aspect ratio of EW width to NS width; a first module (212, 312) is configured with a first aspect ratio; a second module (214, 314) is configured with a second aspect ratio; the EW width of the first module is substantially equal to the EW width of the second module; and the second aspect ratio is substantially larger than the first aspect ratio. at least two modules (212, 214; 312, 314), each said module comprising: a first panel and a third panel suitable for substantially facing, in an on-orbit configuration, respectively, toward north and south and having a width suitable for alignment in an east-west direction (EW width); and a second and a fourth panel suitable for substantially facing, in the on-orbit configuration, respectively, east and west and having a width suitable for alignment in the north-south direction (NS width), characterized in that in each of the on-orbit configuration and the launch configuration: each said module has a respective aspect ratio of EW width to NS width; a first module (212, 312) is configured with a first aspect ratio; a second module (214, 314) is configured with a second aspect ratio; the EW width of the first module is substantially equal to the EW width of the second module; and the second aspect ratio is substantially larger than the first aspect ratio. a first panel and a third panel suitable for substantially facing, in an on-orbit configuration, respectively, toward north and south and having a width suitable for alignment in an east-west direction (EW width); and a second and a fourth panel suitable for substantially facing, in the on-orbit configuration, respectively, east and west and having a width suitable for alignment in the north-south direction (NS width), characterized in that in each of the on-orbit configuration and the launch configuration: each said module has a respective aspect ratio of EW width to NS width; a first module (212, 312) is configured with a first aspect ratio; a second module (214, 314) is configured with a second aspect ratio; the EW width of the first module is substantially equal to the EW width of the second module; and the second aspect ratio is substantially larger than the first aspect ratio. each said module has a respective aspect ratio of EW width to NS width; a first module (212, 312) is configured with a first aspect ratio; a second module (214, 314) is configured with a second aspect ratio; the EW width of the first module is substantially equal to the EW width of the second module; and the second aspect ratio is substantially larger than the first aspect ratio.