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Table 2

Parameters of the strongest background source and the NRH beam, 2003 April 21 event.

Parameter SXR NRH frequency (MHz)
151 164 237 327 411 432

Tb, 108 K 51 128 17 2.1 2.6 2.7
Position, EW − 21 54 176 68 50 34 34
Position, NS 370 428 498 474 464 448 448
Bmaj 409 317 209 164 131 125
Bmin 271 230 164 142 104 101
2D beam

Bmaj 270 249 173 125 99 94
Bmin 194 178 123 89 71 68
1D beam

BNS 194 178 123 59 47 45
BEW 270 249 173 48 38 36

Notes. Positions and sizes are in ′′.

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