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=7971
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ColumnValue  Explain   (UCD)
_RAJ200003 26 17.29 "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)
_DEJ2000-21 20 03.1 "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)
_RAB195003 24 04.00 "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)
_DEB1950-21 30 30.0 "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)
_Glon212.18101 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-54.36591 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)
7971recno 7971  Record number assigned by the VizieR team. Should Not be used for identification. (meta.record)

IPCseq 7028  IPC Sequence Number (Note 1)   (meta.id;meta.main)
fieldno 3  IPC hut number relative to field (Note 1)   (meta.id)
MinFno117128699  Minor frame number (Note 2)   (obs.field)
MajFno 915067  Absolute hut number (minor frame / 128) (Note 2)   (obs.field)
RAB195003 24 04 "h:m:s" (i) Right Ascension (B1950) (pos.eq.ra;meta.main)
DEB1950-21 30 30 "d:m:s" (i) Declination (B1950) (pos.eq.dec;meta.main)
hutroll 2.027 rad Hut - nominal roll angle (Note 3)   (instr.param)
aspyoff 1.865  Aspect Y offset in pixels (Note 4)   (instr.saturation)
aspzoff 2.590  Aspect Z offset in pixels (Note 4)   (instr.saturation)
asprot-8.0609e-04 rad Aspect rotation (Note 4)   (instr.saturation)
livetime1536.416 s Livetime (Note 5)   (time.duration;obs.exposure)
avgbal16.79  Time-averaged BAL (Note 6)   (phot.flux.density;em.IR.4-8um)
ustartim 5.4818175e+10 us Start time (Note 7)   (time.epoch)
astartday 750  Absolute start day (offset from 1978.0) (Note 7)   (time.epoch)
start1980-01-20 "Y:M:D" Start year (Note 8)   (time.start)
starttime54818175 ms Start time (Note 8)   (time.epoch)
stop1980-01-20 "Y:M:D" Stop year (Note 8)   (time.end)
stoptime58463615 ms Stop time (Note 8)   (time.epoch)

_RA.icrs03 26 17 "h:m:s" (i) Right ascension (ICRS) (computed by VizieR, not part of the original data) (pos.eq.ra)
_DE.icrs-21 20 03 "d:m:s" (i) Declination (ICRS) (computed by VizieR, not part of the original data) (pos.eq.dec)
  
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