  Using the Secular Light Curve (SLC) formalism (Ferr\'in, 2010a, PSS, 58,
365-391), we searched for cometary activity of six NEAS: 2201 Oljato. The SLC
exhibits significant cometary activity and evidence of an eclipse. 3200
Phaethon. Is the parent of the Geminid meteor stream and exhibited a faint tail
at perihelion in several oppositions. The SLC fails to show cometary activity
using a 1995 to 2017 data set, suggesting that we are in the presence of a
dormant cometary nucleus. 99942 Apophis. This SLC does not shows evidence of
cometary activity, however it shows evidence of an eclipse. The evidence of a
double nature is confirmed with Goldstone and Arecibo radar observations.
162173 Ryugu. This NEA is the target of the Hayabusa 2 spacecraft mission. The
SLC exhibits an enhancement consistent with cometary activity. It may be
possible to confirm or deny this activity by the end of the mission. 495848=
2002 QD7. This NEA shows deviations from a flat distribution near perihelion in
2007 and 2017. However our own observations in 2018 show a bare nucleus, from
which we obtain an absolute nuclear magnitude mV(nucleus) = 18.32+-0.03 (using
pV=0.04). The equivalent diameter is D=1.43+-0.10 km. 6063 Jason. The SLC of
this NEA exhibits low level cometary activity centred at perihelion. The fact
that a cursory search for low level active comets among NEAs has uncovered four
positive objects out of 6, hints that many more faint comets should exist as
yet undetected.
