IRAS F01268-5436:
Two galaxies are located within the IRAS FSC 3
error ellipse.
The major X-ray emission is probably associated with the galaxy
centered south-east of the IRAS centroid position.
IRAS F02562+0610:
Several optical sources in or near IRAS 3 ellipse, and
several optical sources near X-ray emission, thus no
unique identification possible.
IRAS F04392-2713:
X-ray centroid and NED position for IRAS F04392-2713 agree well,
however, the IRAS FSC error ellipse is centered on a nearby galaxy about 1 arcmin
west of the NED position, which is probably the source of the infrared emission.
IRAS F05136-0012:
Relatively large offset of about 50 arcsec between the X-ray centroid
and the infrared position.
A PSPC pointed observation on F05136-0012 indicates that the X-ray
centroid position and the optical position coincide.
Therefore the offset is probably due to an unusually
large aspect error of the survey data.
IRAS F05340-5804:
The NED IRAS position is taken from the PSC and is inaccurate.
The FSC position is associated with an optical galaxy, but this
galaxy is not the source of the
X-ray emission.
IRAS F06059-4928:
The infrared emission is not clearly associated with any particular
optical galaxy of the apparent cluster.
NED identifies F06059-4928
with one of the galaxies but the X-ray emission
is clearly not associated with that object.
IRAS F06068-2705:
Condon et al. (1997) find that the IRAS and ROSAT sources are not
identical. Most X-ray emission is probably related to the
northeastern member of the galaxy pair near the X-ray centroid position
which is a Seyfert 1.9 galaxy.
IRAS 06269-0543:
Multiple optical counterparts within IR 3 ellipse.
IRAS 08140+7052:
Irregular galaxy Ho II with about 7 arcmin diameter,
multi-component X-ray emission.
Classification grade 1 is given
since all the emission originates inside the galaxy
despite the large
offset between the IRAS FSC and the X-ray centroid
positions.
The infrared luminosity may be larger than given by
FSC/PSC.
IRAS F10214+0644:
Condon et al. (1997) identify the galaxy at
optical position
as the IRAS and VLA source. The ROSAT source
is probably associated with the radio-quiet galaxy CGCG 037-022.
IRAS 11598-0112:
Two optical counterparts within IRAS PSC
3 error ellipse. The X-ray emission is not spatially resolved.
IRAS F12134+5459:
The IRAS source may be a blend of MCG +09-20-133 and
MCG +09-20-134.
From the RASS II contour lines we cannot resolve which galaxy
is actually the source of the X-ray emission.
IRAS F13429+6652:
A nearby optical counterpart to IRAS galaxy could contribute
to X-ray emission. The X-ray emission from the two components
is not spatially resolved.
IRAS 14 072-5205:
The bright optical counterpart near the 3 IRAS PSC
error ellipse may be a star.
The IRAS galaxy is not listed in the FSC.
IRAS F15195+5050:
Condon et al. (1997) identify the Seyfert 1
CGCG 274-040 NED02
at optical
position 
as the probable source of the X-ray emission.
The starburst galaxy CGCG 274-040 NED01 is the
primary identification of the VLA source.
The X-ray emission is clearly identified with a neighboring optical
galaxy. Both the VLA and ROSAT galaxies are equally distant to
the IRAS source, thus it remains unclear which is the IRAS source.
IRAS F17023-0128:
Following Condon et al. (1997) and references for object note on
IRAS F17023-0128,
the Seyfert 1 galaxy UGC 10683 NOTES02 is the most likely
IRAS source. This source is also the main X-ray emitter.
IRAS F18011+4246:
The peak X-ray emission appears associated with
CGCG 227-016 NED02, however the IRAS galaxy identified by NED
as CGCG 227-016 NED01 is within the X-ray positional error also consistent
with the peak X-ray emission. The X-ray emission is spatially
unresolved from both components.
IRAS 18396-3535:
The bright optical counterpart within the 3 IRAS PSC
error ellipse could be a star.
The IRAS galaxy is not listed in the FSC.
IRAS 19211-2855:
Multiple optical counterparts within the 3 IRAS PSC error
ellipse.
The X-ray emission could arise from a star within the IRAS error ellipse.
The IRAS galaxy is not listed in the FSC.
IRAS F19462-5843:
The optical galaxy ESO 142- G047 associated with the IRAS source seems
not to be related to the X-ray centroid position. There are faint
optical counterparts located at the X-ray peak emission. The ROSAT
survey data do not allow a unique identification of the IRAS source
as X-ray emitter.
IRAS F20547-4849:
The optical galaxy NGC 6987 has a relatively large offset to the X-ray centroid position.
The ROSAT
survey data do not allow a unique identification of the IRAS source
as X-ray emitter.
IRAS 22146-5955:
The X-ray centroid position is outside the 3 IRAS PSC error ellipse.
There seems no unique association of the strong X-ray emitter with one optical
counterpart.
IRAS F23251+2318:
The X-ray emission may arise from the faint optical counterpart near the X-ray
peak emission.