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Table 1

Observational data of the GC used in H-, Ks-, and L′-band for the sources show in Fig. 1.

Band H K s L

0.0132 0.0132 & 0.0270
0.0270

field 2002.67 2002.75
2003.54 2003.55 2003.36
2004.41 2004.82 2004.41
2005.66 2005.45
2006.41
2006.65 2006.82 2006.50
2007.35 2007.31 2007.34
2008.49

IRS13N 2002.42 2002.66
2003.54 2003.36
2004.66 2004.32
2005.83 2005.36
2006.55 2006.41
2007.33 2007.39
2008.49
2009.47
2010.53
2011.47

DSO 2003.54 2002.42 2002.66
2004.66 2003.54 2003.36
2005.46 2004.66 2004.32
2006.55 2005.83 2005.36
2007.33 2006.55 2006.41
2008.56 2007.33 2007.39
2008.49 2008.49
2008.19
2008.70
2009.47 2009.47
2010.53
2011.55 2011.55
2012.54 2012.54

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