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IX/4
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IX/4
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J2000
B1950
Ecl. J2000
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J2000
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IX/4
8193
Fourth UHURU Catalogue (4U) (Forman+ 1978)
ReadMe+ftp
Similar Catalogs
Post annotation
1.
IX/4/4u
4th Uhuru catalogue
(339 rows)
Simple Constraint
List Of Constraints
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Constraints
applied on Columns
(
Output Order:
+
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)
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Column
Constraint
Explain
(
UCD
)
recno
Record number within the original table (starting from 1)
(
meta.record
)
(
RECORD
)
4U
(char)
4U name (HHMM+DD)
(
meta.id;meta.main
)
(
ID_MAIN
)
RAB1950
"h:m:s"
Right ascension (B1950)
(Note 1)
(
pos.eq.ra;meta.main
)
(
POS_EQ_RA_MAIN
)
DEB1950
"d:m:s"
Declination (B1950)
(Note 1)
(
pos.eq.dec;meta.main
)
(
POS_EQ_DEC_MAIN
)
a90
deg+2
Area of the 90% confidence level error box
(
stat.error
)
(
ERROR
)
CR
ct/s
Count rate
(Note 2)
(
phot.count;em.X-ray
)
(
PHOT_COUNT-RATE_X
)
e_CR
ct/s
(n)
rms uncertainty on CR
(Note 3)
(
stat.error
)
(
ERROR
)
l_var
(char)
Limit flag on var
(
meta.code.error
)
(
CODE_LIMIT
)
var
(n)
Ratio of the maximum to minimum observed count rate, max
to
min_ratio
(Note 4)
(
src.var.index
)
(
VAR_INDEX
)
Flux
mW/m2
X-ray flux in the 2-6keV band (erg/cm
2
/s)
(Note 5)
(
phot.flux;em.X-ray
)
(
PHOT_FLUX_X
)
e_Flux
mW/m2
(n)
rms uncertainty on Flux
(
stat.error;phot.flux
)
(
ERROR
)
FluxC
mCrab
X-ray flux in the 2-6keV band, in milliCrabs
(Note 6)
(
phot.flux;em.X-ray
)
(
PHOT_FLUX_X
)
e_FluxC
mCrab
(n)
rms uncertainty on FluxC
(
stat.error
)
(
ERROR
)
Com
(char)
Comments
(Note 7)
(
meta.note
)
(
REMARKS
)
_RA.icrs
"h:m:s"
(n)
Right ascension (ICRS) (computed by VizieR, not part of the original data)
(
pos.eq.ra
)
(
POS_EQ_RA_OTHER
)
_DE.icrs
"d:m:s"
(n)
Declination (ICRS) (computed by VizieR, not part of the original data)
(
pos.eq.dec
)
(
POS_EQ_DEC_OTHER
)
ALL
cols
(n)
indicates a possible blank or NULL column
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