The contents of IERS Bulletin A are...

1.  General information including key definitions and the most 
recently adopted values of DUT1 and TAI-UTC.

2.  Quick-look daily estimates of the EOPs determined by smoothing 
the observed data.  This involves the application of systematic 
corrections and statistical weighting.  The results are published 
with a delay of about one to three days between the date of publication 
and the last available date with estimated EOP.  Also, the IERS 
Central Bureau (CB) EOP values are published monthly when available.

3.  Predictions of x, y, and UT1-UTC, up to 365 days following the 
last day of data.  The predictions use similar algorithms based on 
seasonal filtering and autoregressive processing for x, y, and UT1.

4.  The combination series for the offsets.

The NEOS Bulletin is distributed by 0h UTC of Wednesday and Friday 
of each week by electronic mail. Questions may be directed to:
dmc@maia.usno.navy.mil or phone (202)653-0590