The moment - 1 map of the $ ^ -LCB- 12 -RCB- $ CO emission shows the widest outflow cavities in a Class I object known to date (opening angle $ \ sim $ 150 $ ^ -LCB- ^ -LCB- \ circ -RCB--RCB- $).
From the $ ^ -LCB- 12 -RCB- $ CO blue - shifted emission, we estimate a wide openingangle of $ \ sim $ 150 $ ^ -LCB- ^ -LCB- \ circ -RCB--RCB- $ for the outflow cavities.