[Renfrew]

These are sensors on different parts of the spacecraft. If you hover over them it will tell you where they are.

[Repeal The 17th]

Thanks!
(had to go to a secondary browser to be able to see that)

[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)