VizieR

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VizieR

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J/ApJS/123/79/3eg Third EGRET catalog (3EG) (Hartman+, 1999)
Third EGRET Source Catalog (table 4) (271 rows)
  recno=264
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ColumnValue  Explain   (UCD)
_RAJ200022 54 02.4 "h:m:s" Right ascension (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEJ2000+16 01 12 "d:m:s" Declination (FK5, Equinox=J2000.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_RAB195022 51 34.1 "h:m:s" Right ascension (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.ra)
_DEB1950+15 45 13 "d:m:s" Declination (FK4, Equinox=B1950.0) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.eq.dec)
_Glon086.0401 deg Galactic longitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lon)
_Glat-38.3008 deg Galactic latitude (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services) (pos.galactic.lat)
264recno 264  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

3EGJ2254+1601  (i) 3EG name (Jhhmm+ddmm) (meta.id;meta.main)
RAJ2000343.51 deg (i) Right ascension (J2000) (pos.eq.ra;meta.main)
DEJ2000+16.02 deg (i) Declination (J2000) (pos.eq.dec;meta.main)
GLON 86.05 deg Galactic longitude (pos.galactic.lon)
GLAT-38.30 deg Galactic latitude (pos.galactic.lat)
theta95 0.280 deg Radius of the circle containing the same solid angle as the 95% confidence contour (pos.posAng)
n_theta95    [*] *: value was obtained by multiplying the 68% radius by 1.62. This was necessary in cases of unclosed or extremely irregular 95% contours. (meta.note)
F 53.7 10-8ph/cm2/sFlux (E>100MeV) (Note 4)   (phot.flux.density;em.gamma.hard)
e_F 4.0 10-8ph/cm2/s rms uncertainty on F ({DELTA}F) (Note 4)   (stat.error)
Sp-Index 2.21   Photon spectral index in F(E)∼E–Sp–Index (spect.index)
e_Sp-Index 0.06   rms uncertainty on Sp-Index (stat.error)
n_Sp-Index    [BF] B: Break, F: Features (meta.note)
IDA   [PGSAa] Identification code (Note 1)   (src.class)
NoteC   [@EemC, ] Notes (Note 2)   (meta.note)
r_ID1,3,4  References detailed in file "refs.dat" (meta.ref;pos.frame)
l_z    [≥ ~] Limit flag on z (meta.code.error;src.redshift)
z 0.8590   Redshift (AGNs only) (src.redshift)
u_z    [?] Uncertainty flag on z (meta.code.error;src.redshift)
OtherNames2EG J2253+1615, GEV J2253+1622, 2251+158, 3C 454.3  Other names (Note 3)   (meta.id)
  
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