Requests the Secretary-General to keep the Security Council closely informed of the situation in East Timor, to report to it as soon as possible, and in any event by 24 May 1999, on the implementation of this resolution and of the Agreements referred to in paragraphs 1 and 2 above, inter alia specifying the detailed modalities of the consultation process, to make detailed recommendations to the Council for decision on the mandate, size, structure and budget of the United Nations Mission, including civilian police officers envisaged in paragraph 3 above, and to report to the Council thereafter every fourteen days;