B/iram              IRAM Observation Logs                     (IRAM 1991-2015)
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IRAM Observation Logs (Plateau de Bure Interferometer and 30-m telescope)
     Dan M., Neri R., Sievers A.
    <IRAM Newsletters (1991-2015)>
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ADC_Keywords: Observatory log ; Interferometry ; Radio sources

Description:

    The Institut de Radio Astronomie Millimetrique (IRAM) was founded in
    1979 and is operated as a French-German-Spanish collaboration. Its
    partner institutes are the CNRS (Centre National de la Recherche
    Scientifique, France), the MPG (Max Planck Gesellschaft, Germany), and
    the IGN (Instituto Geografico Nacional, Spain). The principal activity
    of IRAM is the study of cold matter (molecular gas and dust) in the
    solar system, in our Galaxy, and out to cosmological distances in
    order to determine its composition, density, mass, temperature, and
    kinematics.

    IRAM operates two observatories at millimeter wavelengths which are
    open to the international astronomical community: The 30-m single-dish
    telescope on Pico Veleta (2850m), Spain, and the six-antenna
    interferometer on the Plateau de Bure (2550m) in France. Both sites
    are at high altitude to reduce the absorption by water vapor. The
    observatories are supported by the IRAM offices and laboratories in
    Granada and Grenoble.

    The observation log included here concerns the Plateau de Bure site,
    and summarizes the observations made there from December 1990.

    The observations log of the 30-m single-dish telescope covers a
    period starting in January 2009. This log was produced using a header
    archive, a collaborative effort between IRAM and IAA/CSIC.

File Summary:
--------------------------------------------------------------------------------
 FileName  Lrecl   Records  Explanations
--------------------------------------------------------------------------------
ReadMe         80        .  This file
pdbi.dat      153    20316  The Plateau de Bure Interferometer Observation Log
                                between 1991-12-01 and 2013-03-31
pdbi_pi.dat    51     2987  List of PI investigators of PdBI instrument
30m.dat       200   350493  List of observations at 30m instrument
                                between 2009-09-30 and 2014-06-30
30m_pi.dat     51      762  List of PI investigators of 30m instrument
--------------------------------------------------------------------------------

See also:
    http://www.iram.fr/ : the IRAM Home Page

Byte-by-byte Description of file: pdbi.dat
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   Bytes Format Units   Label   Explanations
--------------------------------------------------------------------------------
   1-  2  I2    ---     Nw      [11,18] Internal indicator
   4- 11  A8    ---     Prog    Identification code of the program
  13- 24  A12   ---     Name    Source name, as mentioned in the
                                observing program
  26- 29  I4    yr      Obs.Y   Starting date of the Observation (year) (5)
      30  A1    ---     ---     [-]
  31- 32  I2  "month"   Obs.M   Starting date of the Observation (month) (5)
      33  A1    ---     ---     [-]
  34- 35  I2    d       Obs.D   Starting date of the Observation (day) (5)
  37- 38  I2    h       t1.h    LST Time of the first scan on source
      39  A1    ---     ---     [:]
  40- 41  I2    min     t1.m    LST Time of the first scan on source
  43- 44  I2    h       t2.h    LST Time of the last scan on source
      45  A1    ---     ---     [:]
  46- 47  I2    min     t2.m    LST Time of the last scan on source
  49- 54  I6    s       tos     Total on-source correlation time
  56- 58  A3    ---     Type    Program type (1)
  60- 63  I4    yr      oEq     ? Original equinox of position (2)
  65- 66  I2    h       RAh     ? Right Ascension J2000 (hours)
      67  A1    ---     ---     [:]
  68- 69  I2    min     RAm     ? Right Ascension J2000 (minutes)
      70  A1    ---     ---     [:]
  71- 78  F8.5  s       RAs     ? Right Ascension J2000 (seconds)
      79  A1    ---     DE-     Declination J2000 (sign)
  80- 81  I2    deg     DEd     ? Declination J2000 (degrees)
      82  A1    ---     ---     [:]
  83- 84  I2    arcmin  DEm     ? Declination J2000 (minutes)
      85  A1    ---     ---     [:]
  86- 92  F7.4  arcsec  DEs     ? Declination J2000 (seconds)
  94- 99  F6.1  km/s    Vel     Velocity of the source (3)
     100  A1    ---   n_Vel     [LH] LSR or Heliocentric velocity
 102-107  I6    MHz     Flow    ?=0 Sky Frequency of the 3mm receiver (6)
     108  A1    ---   n_Flow    [UL] Signal Upper/Lower band of the 3mm receiver
 110-115  I6    MHz     Fhigh   ?=0 Sky Frequency of the 1mm receiver (6)
     116  A1    ---   n_Fhigh   [UL] Signal Upper/Lower band of the 1mm receiver
 118-119  A2    ---     pol     [HV ] Horizontal/Vertical polarisations (6)
 120-121  A2    ---     p4      [HV ] Polarisation of 4GHz continuum (6)
 123-125  A3    ---     Conf    Configuration code of the interferometer
 127-153  A27   ---     Config  Detailed configuration (4)
--------------------------------------------------------------------------------
Note (1): the Type is one of:
     DET=detection MAP=mapping MOS=mosaicing SNA=snapshot

Note (2):
     The original position was expressed as 1950 or 2000 position; all
     positions have been converted to J2000 in this version of the log.

Note (3):
     The velocity may be forced to zero if the velocity is integrated in
     the frequency.

Note (4): W00 is the crossing point of the E-W and N antennae, and one unit
     corresponds to approximatively 8 meters.

Note (5): No observation was done in the periods:
      * 1999-Sep-30 to 2000-Dec-03
      * 2006-Sep-25 to 2007-Jan-18 (installation of the new receiver)

Note (6): For the observations made up to 2006, the columns Flow and Fhigh
     list the frequencies in the 2 available bands corresponding to 3mm and
     1mm. From 2007 on, the actual min and max frequencies are listed in
     these 2 columns, and the 2 columns pol and p4 were added.
--------------------------------------------------------------------------------

Byte-by-byte Description of file: *_pi.dat
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   Bytes Format Units   Label     Explanations
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   1-  8  A8    ---     Prog      Identification code of the program
  10- 51  A42   ---     PI        Principal Investigator's name
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Byte-by-byte Description of file: 30m.dat
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   Bytes Format Units   Label   Explanations
--------------------------------------------------------------------------------
   1- 20  A20   ---     Name    Target source name
  22- 22  A1    ---     sys     [BJ] equinox system
  23- 28  F6.1  yr      Eq      ? equinox year
  39- 40  I2    h       RAh     ? Right ascension (hours) J2000
      41  A1    ---     ---     [:]
  42- 43  I2    min     RAm     ? Right ascension (minutes) J2000
      44  A1    ---     ---     [:]
  45- 49  F5.2  s       RAs     ? Right ascension (seconds) J2000
      56  A1    ---     DE-     Declination (sign) J2000
  57- 58  I2    deg     DEd     ? Declination (degrees) J2000
      59  A1    ---     ---     [:]
  60- 61  I2    arcmin  DEm     ? Declination (minutes) J2000
      62  A1    ---     ---     [:]
  63- 66  F4.1  arcsec  DEs     ? Declination (seconds) J2000
  73- 76  I4    yr      Obs.Y   Starting date of the Observation (year)
                                (from ncsID)
      77  A1    ---     ---     [-]
  78- 79  I2  "month"   Obs.M   Starting date of the Observation (month)
      80  A1    ---     ---     [-]
  81- 82  I2    d       Obs.D   Starting date of the Observation (day)
      83  A1    ---     ---     [.]
  84- 87  I4    ---     scan    Scan No. (Date.scan = ncsID)
  90- 91  I2    h       t1.h    ? Starting time in UTC (hour)
      92  A1    ---     ---     ? [:]
  93- 94  I2    min     t1.m    ? Starting time (min)
      95  A1    ---     ---     ? [:]
  96- 97  I2    sec     t1.s    ? Starting time (sec)
 101-102  I2    h       t2.h    ? End time (hour)
     103  A1    ---     ---     ? [:]
 104-105  I2    min     t2.m    ? End time (min)
     106  A1    ---     ---     ? [:]
 107-108  I2    sec     t2.s    ? End time (sec)
 112-122  A11   --      obsMode  Observation mode (1)
 125-139  A15   ---     Prog     Identification code of the program
 142-149  F8.5  ---     tau      ? Zenith {tau} at 225 GHz from tipping taumeter
 159-171  A13   ---     receiv   Short name of the receiver(band) used
 176-187  A12  ---      line     Name of line observed
 191-200  F10.5 GHz     Freq     Frequency used for the observation
--------------------------------------------------------------------------------
Note (1): the various observation modes are:
   * VLBI
   * onOff (taking data on and off source in quick succession)
   * onTheFlyMap
   * pointing
   * track
   * calibrate
   * focus
   * tip (a calibration to measure the opacity)
--------------------------------------------------------------------------------


Acknowledgements:
  * Michel Dan (IRAM, Plateau de Bure)
  * Albrecht Sievers (Pico Veleta)

History:
  * 25-Mar-2004: file "pdbi.dat" until December 2002
  * 15-Dec-2004: file "pdbi.dat" until December 2003
  * 04-Nov-2005: file "pdbi.dat" until December 2004
  * 16-Apr-2007: file "pdbi.dat" until March 2006
  * 14-Nov-2007: file "pdbi.dat" until September 2006
  * 14-Apr-2008: file "pdbi.dat" until March 2007.
                 Includes the 2 new columns pol and p4.
  * 06-Apr-2009: file "pdbi.dat" until March 2008.
  * 10-Dec-2009: file "pdbi.dat" until September 2008.
  * 12-Apr-2010: file "pdbi.dat" until March 2009.
  * 21-Oct-2010: file "pdbi.dat" until September 2009 (14158 obs.)
  * 07-Jan-2011: 2009 log of 30m
  * 07-Apr-2011: file "pdbi.dat" until March 2010.
           Column "p4" is now 2 bytes wide (was 1 byte only)
  * 09-Oct-2011: file "pdbi.dat" until September 2010.
  * 09-Mar-2012: Addition of 2010 log of 30m observations.
           List of PI's separated in 2 files: pdbi_pi.dat and 30m_pi.dat
  * 23-Oct-2012: file "pdbi.dat" until September 2011.
  * 30-Jan-2013: Addition of 2011 log of 30m observations
  * 11-Apr-2013: Addition of 2011-10 to 2012-03 observations in "pdbi.dat"
  * 06-Aug-2013: Addition of 30m observations between 2012-01 and 2012-06
  * 19-Dec-2013: Addition of 2012-04 to 2012-09  observations in "pdbi.dat"
  * 09-Jan-2014: Addition of 30m observations between 2012-07 and 2012-12
  * 28-Feb-2014: Fixed "pdbi_pi.dat" file
  * 05-Jun-2014: Addition of 2012-10 to 2013-03 observations in "pdbi.dat"
  * 16-Jan-2015: Addition of 2013-07 to 2013-12 observations to "30m.dat"
  * 21-Jan-2015: Addition of 2013-04 tp 2013-09 observations in "pdbi.dat"
  * 07-May-2015: Addition of 2013-10 to 2014-03  observations in "pdbi.dat"
           Column "Prog" enlarged (from 4 to 8 bytes)
  * 29-Jul-2015: Addition of 2014-01 to 2014-07 observations to "30m.dat
  * 05-Feb-2016: Addition observation to 30m.dat
  * 22-Feb-2016: Addition observation to pdbi.dat
  * 31-aug-2016: Addition observation to pdbi.dat
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(End)                                   Francois Ochsenbein [CDS]    14-Apr-2008
