Have fitted the measured temperature changes of the WAB during its heating and cooling from yesterday to today. In the model used to the fitting, the assumed heat resistor and heat offset are the same as those of here, 11.5K/W and 0.59W (in total), respectively. Because the cooler head's temperature also changed while the heat input, I used different constant value for the fitting as shown in the table below.
| Time (JST) | Heaters input | Assumed Cooler Head Temp. [K] | |
| 20180427 10:24 | about 0.5W | 12 | Fig 1 |
| 20180427 12:48 | about 0.7W | 12 | Fig 2 |
| 20180427 17:12 | about 1.6W | 13 | Fig 3 |
| 20180428 9:46 | Cut off. | 13 | FIg 4 |
The fittings themselves seem very well. But how to resolve this thermal situation is a headache.
By the way, from 16:00, the IYC's coolers were turned off, so the theromoeters are generally showing rise of the temperature; but interestingly the thermometer#6 shows reduction of the temperature! (Fig.5) This one is attached to the WAB suspension frame, which is directly put on the optical table in the 8K shield, and dose not have direct paths to any cooler heads (thermally independet from the WAB dummy.) So strange.
