[Repeal The 17th]

a) Sunshield UPS Average Temperature (hot side: Sunshield Structure)

b) Spacecraft Equipment Panel Average Temperature (hot side: Spacecraft Bus)

c) Primary Mirror Average Temperature (cold side: Mirrors)

d) Instrument Radiator Temperature (cold side: ISIM)

[zeestephen]

Both of the cold side temperature points will drift down to minus 388 F over the next few months.

The cold side actually has heaters that prevent a rapid temperature decline, for two reasons.

First, a rapid decline might damage some of the equipment.

Second, residual Earth moisture might turn to ice, instead of just sublimating away as water vapor over time.