-@M@ @H@ * * * root /usr/local/planetlab/bin/pl_mop.sh
-*/15 * * * * root /usr/share/pl_mom/bwmon.py
-*/15 * * * * root /usr/share/pl_mom/nm_mom.py
+@M@ @H@ * * * root /usr/local/planetlab/bin/pl_mop.sh
+*/15 * * * * root /usr/share/pl_mom/bwmon.py
+* 12 * * * root /usr/share/pl_mom/nm_mom.py