I have updated and analyzed the water production rate based in work of L.Jorda et al. " Correlation between water production rate and magnitudes visuals " ( 2008 ) , the preliminary results comet C/2010 X1 Elenin :
R = 2,5 u.a.--> log [ H2O ] < 50 kgrs./seg. < 10^27,2 mol.s-1
and estimated range of water production :
15 < log Q [ H2O] < 50 kgrs./seg. 10^26,7 mol.s-1 < log Q [ H2O] < 10^27,2 mol.s-1
Graphic nº 2 adapted work published in A&A , " Activity on the surface of the nucleus of comet 46P/Wirtanen , O.Groussin and P.Lamy , 2003 )
