INTERNATIONAL   EARTH   ROTATION   SERVICE   (IERS) 
SERVICE INTERNATIONAL LA ROTATION TERRESTRE


BUREAU CENTRAL DE L'IERS
OBSERVATOIRE DE PARIS
61, Av. de l'Observatoire
75014 PARIS (France)
Tel. 33 (0) 1 40 51 22 26
FAX 33 (0) 1 40 51 22 91
Internet: iers@obspm.fr Paris, 24 October 1997

Bulletin D 72





ANNOUNCEMENT OF DUT1


From the

18 December 1997, 0h UTC

until further notice, the value of DUT1 to be disseminated with the time signals
will be


DUT1 = + 0.2 s


Bulletin D 73 should be issued in December 1997.