Typhoon Chan-hom's appearance on microwave images

(tcforecast) Typhoon Chan-hom with clear eye pattern on microwave images moving away from Vietnam, after threatening coastal area.
After intensifying upto 75kts (13 force beaufort scale), Chan-hom showed an eye pattern during 07 May daytime.
Here are the images from aqua-1 satellite:

36 GHz color. Chan-hom center at 14.9N - 116.2

89H GHz - Chan-hom center at 14.8N - 116.2E

36H GHz - Chan-hom center at 14.9N - 116.2E

These images show low-level circulation of Chan-hom, good indicator for surface center!
well done microwave image!