Table 2: Best fit model parameters for the 15 AGN (present work). In the case of sources with multiple pointings, the weighted averages are shown. Since PKS 2155-304 (3EG J2158-3023) is best fitted in 4 pointings with the broken power law model and in the remaining 5 with the simple power law model; we reported the averages of both models. Columns: (1) name of the source; (2) absorbing column density [1020 cm-2]; (3) photon index $\Gamma $, if the best fit is a simple power law model or soft photon index $\Gamma _1$, if the best fit model is a broken power law; (4) hard photon index $\Gamma _2$ for the broken power law model; (5) break energy [keV].
Name $N_{{\rm H}}$ $\Gamma $/$\Gamma _1$ $\Gamma _2$ $E_{\rm break}$
(1) (2) (3) (4) (5)

0219+428
Gal. $\rm 2.91_{-0.08}^{+0.12}$ $\rm 2.23_{-0.09}^{+0.10}$ $1.3\pm 0.2$
AO 0235+164 Gal. $2.33\pm 0.04$ $2.1\pm 0.1$ $\rm 3.3_{-0.5}^{+0.7}$

PKS 0521-365
Gal. $1.95\pm 0.03$ $1.74\pm 0.03$ $\rm 1.5_{-0.2}^{+0.3}$

S5 0716+714
Gal. $2.70\pm 0.02$ $\rm 1.98_{-0.09}^{+0.08}$ $\rm 2.3_{-0.1}^{+0.2}$

S5 0836+710
$14\pm 3$ $1.379\pm 0.007$ - -
Mkn 421 Gal. $2.38\pm 0.09$ $2.7\pm 0.2$ $2.7\pm 1.0$
PKS 1127-145 $\rm 12_{-1}^{+2}$ $\rm 1.40_{-0.05}^{+0.08}$ $1.22\pm 0.06$ $\rm 2.7_{-0.8}^{+1.0}$

ON 231
$2.5\pm 0.6$ $2.77\pm 0.04$ - -
3C 273 Gal. $2.02\pm 0.08$ $1.67\pm 0.05$ $1.44\pm 0.08$
Cen A $1523\pm 261$ $2.22\pm 0.06$ - -
PKS 1334-127 $6.7\pm 0.9$ $1.80\pm 0.04$ - -
PKS 1406-076 Gal. $1.59\pm 0.01$ - -

NGC 6251
$14\pm 1$ $\rm 2.11_{-0.06}^{+0.08}$ $1.78\pm 0.07$ $\rm 2.5_{-0.4}^{+0.3}$

PKS 1830-211
$63\pm 1$ $1.00\pm 0.09$ $1.32\pm 0.06$ $3.5\pm 0.7$
PKS 2155-304 $1.69\pm 0.06$ $2.9\pm 0.1$ - -
  Gal. $2.7\pm 0.1$ $2.94\pm 0.06$ $2.7\pm 0.7$


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