So few coordinates from my area, I eyeballed it against google maps for "accuracy":
X Y
4675 2817 Port Elizabeth, South Africa
4803 2717 Durban, South Africa
4705 2613 Johannesburg, South Africa
4839 2627 Maputo, Mozambique
4720 2716 Masero, Lesotho
4792 2650 Mbabne, Swaziland
4648 2627 Gaborone, Botswana