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=8021
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ColumnValue  Explain   (UCD)
_RAJ200004 17 37.32 "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)
_DEJ2000-62 47 02.6 "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)
_RAB195004 17 01.00 "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)
_DEB1950-62 54 17.0 "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)
_Glon274.50953 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-41.19539 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)
8021recno 8021  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

IPCseq 7046  IPC Sequence Number (Note 1)   (meta.id;meta.main)
fieldno 1  IPC hut number relative to field (Note 1)   (meta.id)
MinFno139811067  Minor frame number (Note 2)   (obs.field)
MajFno1092273  Absolute hut number (minor frame / 128) (Note 2)   (obs.field)
RAB195004 17 01 "h:m:s" (i) Right Ascension (B1950) (pos.eq.ra;meta.main)
DEB1950-62 54 17 "d:m:s" (i) Declination (B1950) (pos.eq.dec;meta.main)
hutroll 0.740 rad Hut - nominal roll angle (Note 3)   (instr.param)
aspyoff 2.702  Aspect Y offset in pixels (Note 4)   (instr.saturation)
aspzoff -0.665  Aspect Z offset in pixels (Note 4)   (instr.saturation)
asprot-1.6970e-03 rad Aspect rotation (Note 4)   (instr.saturation)
livetime1486.085 s Livetime (Note 5)   (time.duration;obs.exposure)
avgbal16.72  Time-averaged BAL (Note 6)   (phot.flux.density;em.IR.4-8um)
ustartim 5.5576060e+10 us Start time (Note 7)   (time.epoch)
astartday 834  Absolute start day (offset from 1978.0) (Note 7)   (time.epoch)
start1980-04-13 "Y:M:D" Start year (Note 8)   (time.start)
starttime55576060 ms Start time (Note 8)   (time.epoch)
stop1980-04-13 "Y:M:D" Stop year (Note 8)   (time.end)
stoptime58975740 ms Stop time (Note 8)   (time.epoch)

_RA.icrs04 17 37 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-62 47 03 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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