What are the approximate dimension of this iceberg? Any chance the ratio is 1:4:9? From 17-Oct-2018 NASA ICE tweet:

I'm curious of the actual dimensions, and if possible a complete photo. And curious in a scifi sort of way if they have a ratio of 1:4:9


  From yesterday's #IceBridge flight: A tabular iceberg can be seen on the right, floating among sea ice just off of the Larsen C ice shelf. The iceberg's sharp angles and flat surface indicate that it probably recently calved from the ice shelf.




from a following tweet (for clarification):
Not likely.

Quoting Kelly Brunt, an ice scientist with NASA and at the University of Maryland, from What the Heck Is the Deal with This Weird, Square Iceberg? at LiveScience.com:


  What makes this one a bit unusual is that it looks almost like a square,


which does not rhyme with anything in your suggested 1:4:9 ratio.

The article mentions the obvious


  And, as with all icebergs, the part visible above the surface is just the top 10 percent of its mass. 


but that only tells you that 90% is under water, nothing about its absolute height above sea level.