VizieR

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VizieR

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IX/25/ipcihut Einstein Observatory IPC Parameters (HEAO-2, 1978-1981)
Component Huts for IPC Sequences (13265 rows)
  recno=1189
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ColumnValue  Explain   (UCD)
_RAJ200006 45 11.09 "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 41 57.5 "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)
_RAB195006 42 57.00 "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)
_DEB1950-16 38 46.0 "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)
_Glon227.21879 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 -8.87515 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)
1189recno 1189  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

IPCseq 837  IPC Sequence Number (Note 1)   (meta.id;meta.main)
fieldno 1  IPC hut number relative to field (Note 1)   (meta.id)
MinFno 85632375  Minor frame number (Note 2)   (obs.field)
MajFno 669002  Absolute hut number (minor frame / 128) (Note 2)   (obs.field)
RAB195006 42 57 "h:m:s" (i) Right Ascension (B1950) (pos.eq.ra;meta.main)
DEB1950-16 38 46 "d:m:s" (i) Declination (B1950) (pos.eq.dec;meta.main)
hutroll-1.542 rad Hut - nominal roll angle (Note 3)   (instr.param)
aspyoff 3.435  Aspect Y offset in pixels (Note 4)   (instr.saturation)
aspzoff 0.403  Aspect Z offset in pixels (Note 4)   (instr.saturation)
asprot-8.7104e-04 rad Aspect rotation (Note 4)   (instr.saturation)
livetime1918.629 s Livetime (Note 5)   (time.duration;obs.exposure)
avgbal12.64  Time-averaged BAL (Note 6)   (phot.flux.density;em.IR.4-8um)
ustartim 8.4796617e+10 us Start time (Note 7)   (time.epoch)
astartday 633  Absolute start day (offset from 1978.0) (Note 7)   (time.epoch)
start1979-09-25 "Y:M:D" Start year (Note 8)   (time.start)
starttime84796616 ms Start time (Note 8)   (time.epoch)
stop1979-09-26 "Y:M:D" Stop year (Note 8)   (time.end)
stoptime 403656 ms Stop time (Note 8)   (time.epoch)

_RA.icrs06 45 11 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-16 41 58 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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