[X] My Assistant

[Greenish]

For those who haven't already seen, there is excellent work independently tracking and predicting the trajectory of Tianwen-1 by radio amateurs (using that word only technically, since they are very much pros).
The latest is predicting orbital insertion at 8 seconds before 1200 UTC on Wednesday 10 February, with a 386 km periapsis - burn starts a few minutes before that if you, like me, are planning your peanut consumption carefully this week.

Plenty of details to be found at these links (even a GMAT script and Jupyter notebook, and some doppler data, for the astrodynamically inclined).
https://destevez.net/tag/tianwen/
Daniel Estévez recent twitter thread with MOI images
Scott Tilley recent twitter thread

[Explorer1]

Is the low sun angle why the polar cap isn't bright white like we see in other images (both Hubble and other orbiters?) Or are others "enhanced" and this one is not?

[mcaplinger]

Is the low sun angle why the polar cap isn't bright white like we see in other images (both Hubble and other orbiters?)

Pretty typical for this season. See https://apod.nasa.gov/apod/ap980924.html for example.