Open Access

Table 2

General characteristics of the NPBS pointing grid.

Characteristic Value
Lowest frequency 39.25 MHz
Highest frequency 76.75 MHz
Bandwidth 37.5 MHz
Number of frequency channels 24 576
Min. Dec 38.7°
Max. Dec 90°
Number of pointings 7692
Obs. duration 27 min
Nb of used mini-arrays 25
Sub-array diameter 210m
Beam angular diameter 1.47°
Avg. beam solid angle 1.690 deg2
Avg. angular separation 0.98°
Avg. sky covering frac. 98.4%
Sky covering at 76 MHz 90.2%

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