Planet Classification

I'm reading Planet UPPs as follows:  port, size, atm, hydr, pop, gov, law - tech. Is this correct? I think Cedar and Floral have Size S. What does that mean? Castellan has Law G. What does that mean? For world data / planet/sytem classification, I don't know what Fi (Kashmir), Ro (Kren), Ba (Sominum Mons) mean.

Adan has Pe, which I assume means Penal.

World size of S means a small world, Pluto sized or smaller.  Less than 1600 Km in diameter.  Often a single asteroid outside of a belt. Law Level G means Nazi Germany, Stalinist Russia and TSA all rolled into one at the same time.  From book 3 "Law level is also the general throw to avoid harassment by police or other law enforcement agencies (usually throw once per day)."  So with a law level of 16 ...  Extreme law (severe punishment for petty infractions). Trade classification "Fi" means a programming error in my JavaScript.  That should be "FL" Fluid ocean.  The liquid on the world surface is not standard H2O.  I have corrected the listing. Trade classification "Ba" means a barren world, one with a low population of individuals. Kren has a classification of "Ro" which is a typo.  This should be "Ri" meaning a Rich world.  I've fixed that. Adan is considered a Penal colony.  That is correct.  Ask Cory about that, his last character got a job as a security guard there.

Thank you very much. The 'S' vs '0' size is awesome, a great way of differentiating through the UPP. :) Is the 'Ba' tag a standard in the Traveller community, or is it something you did? Is it always pop 0 or can it include pop 1? Just as an aside (because I'm a dick and wikipedia exists), pluto has a diameter of ~2400km, but I get your point! :) Thanks very much for explaining the law G thing, I've now looked through the list and I see some A's there as well, etc. Good to know!

I've noticed in the Durran system, you have the planet Undone with UPP GS00100-1 and it's showing up with the 'As' tag. Is that a mistake, or does it mean a lone asteroid vs a small planet?

My apologizes to Pluto.  Pluto would have a size of "1" not S.  Ceres is an example of a world of size S.  Ba is part of Classic Traveller but it is defined in the supplementary material not in Book 2. The trade classification of 'As' is given worlds with a size less than 1, an atmosphere of zero and a hydrosphere of zero. World size '0' normally means the full asteroid belt not just a single world.