Table 1: Log of WSRT observations of GRB 030329.
Observing dates $\Delta$Ta Integration time Frequency Fluxb
  (days) (hours) (GHz) ($\mu$Jy)
2003 Dec. 22.926-23.196 268.577 6.5 2.3 $1618\pm 31$
2003 Dec. 25.005-25.188 270.612 4.4 1.4 $2502\pm 139$
2004 Jan. 25.833-26.333 302.599 12.0 0.35 < $951~(3\sigma)$c
2004 Jan. 29.822-29.961 306.408 3.3 1.4 $1552\pm 111$
2004 Jan. 29.995-30.134 306.580 3.3 4.8 < $648~(3\sigma)$d
2004 Jan. 30.168-30.307 306.753 3.3 2.3 $1389\pm 67$
2004 Jan. 31.012-31.137 307.591 3.0 8.4 $ 815\pm 225$
2004 Feb. 10.790-11.289 318.555 12.0 0.84 $2332\pm 288$
2004 Mar. 26.667-26.934 363.816 6.4 4.8 $ 597\pm 27$
2004 Mar. 27.664-28.152 364.424 11.7 1.4 $1318\pm 104$
2004 Mar. 28.862-29.153 365.524 7.0 2.3 $ 871\pm 29$
2004 Apr. 11.623-11.880 379.267 6.2 0.84 $1525\pm 389$
2004 May 2.566-3.065 400.331 12.0 0.35 < $1305~(3\sigma)^c$
2004 May 19.634-20.018 417.342 9.2 1.4 $1824\pm 100$
2004 May 22.511-22.794 420.168 6.8 2.3 $ 933\pm 34$
2004 Jul. 3.396-3.729 462.078 8.0 2.3 $ 707\pm 39$
2004 Jul. 4.394-4.726 463.076 8.0 4.8 $ 329\pm 27$
2004 Aug. 1.317-1.598 490.974 6.7 1.4 $ 622\pm 95$
2004 Sep. 25.328- 25.667 546.013 8.1 4.8 $ 274\pm 34$
2004 Nov. 2.063-2.271 583.683 5.0 2.3 $ 543\pm 46$
2004 Nov. 11.039-11.371 592.721 8.0 1.4 $1162\pm 63$
2004 Nov. 12.036-12.536 593.802 12.0 0.84 $1306\pm 366$
2004 Nov. 20.014-20.486 601.766 11.3 0.35 < $2124~(3\sigma)^c$
2005 Mar. 24.673-25.172 726.439 12.0 0.84 $1199\pm 238$
2005 Mar. 26.667-27.167 728.433 12.0 0.35 < $996~(3\sigma)^c$
2005 Apr. 9.629-10.129 742.395 12.0 1.4 $1078\pm 72$
2005 Apr. 10.627-11.126 743.892 12.0 2.3 $ 504\pm 48$
2005 May 14.534-14.919 777.242 9.2 4.8 $ 409\pm 27$
2005 May 15.531-15.883 778.223 8.1 8.4 < $309~(3\sigma)$e
2005 Nov. 27.993-28.493 974.759 12.0 4.8 $ 150\pm 19$
2005 Dec. 7.004-8.292 984.163 13.8 2.3 $ 318\pm 58$
2005 Dec. 9.000-10.233 986.132 12.5 1.4 $ 842\pm 127$
2006 Apr. 9.637-10.129 1107.399 11.8 0.84 $ 817\pm 392$
2006 Apr. 30.573-May 1.072 1128.338 12.0 4.8 $ 157\pm 22$
a The indicated time is the logarithmic average of the start and end of the integration.
b The measurement uncertainties are given at $1 \sigma$ level.
c A meaningful formal flux measurement at the GRB position cannot be determined because of confusion by a very nearby, bright source.
d Formal flux measurement at the GRB position gives $1\pm 216$ $\mu$Jy.
e Formal flux measurement at the GRB position gives $-69\pm 103$ $\mu$Jy.

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