Table 1: The log of the ISO observations of Mkn 297. The nine columns list the TDT number (a unique identifier for an ISO observation), the AOT number (which identifies the observing mode used), the filter label, the wavelength range ( $\Delta \lambda $), the reference wavelength of the filter where appropriate, the duration of the measurement (including both the on- and off-source measurements), the field-of-view of the instrument in the configuration employed, the positional offset of the background measurement(s) with respect to the target reference position, and any additional notes.

TDT#a
AOT# Filter $\Delta \lambda $ $\lambda_{\rm ref}$ $\Delta$t FOV Chop Notes
      ($\mu $m) ($\mu $m) (s) $^{\prime\prime}$ $^{\prime\prime}$  

47400671
CAM03 LW2 5.0-8.5 6.7 588 48 (1.5 $^{\prime\prime}$/pixel) 90 chop in Dec
47400671 CAM03 LW6 7.0-8.5 7.7 588 48 90 chop in Dec
47400671 CAM03 LW3 12.0-18.0 14.3 588 48 90 chop in Dec
47400671 CAM03 LW10 8.0-15.0 12.0 588 48 90 chop in Dec
09101068 CAM01 LW3 12.0-18.0 14.3 3794 480 (6 $^{\prime\prime}$/pixel)   rasterb
47400567 PHT40 SS/SL 2.5-11.6   1024 25 +/-150 triang. chopc
62702069 LWS01   43.0-190.0   1124 101   on-source
62702070 LWS01   43.0-190.0   1124 101 see belowa off-source
a All observations refer to target position R.A. 16$^{\rm h}$ 05$^{\rm m}$ 13.2$^{\rm s}$ and Dec +20$^{\circ}$ 32' 32.0''
except for the LWS background measurement made at 16$^{\rm h}$ 05$^{\rm m}$ 57.2$^{\rm s}$ +20$^{\circ}$ 26' 23.7''.
b TDT 09101068 was a $4 \times 4$ raster with 96 $^{\prime\prime}$ step size.
c The term "chop'' has been used to refer to all off-target measurements, although only PHT
employed a chopping device. For the other instruments the spacecraft pointing was offset.


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