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B/iram              IRAM Observation Logs                     (IRAM 1991-2015)

IRAM Observation Logs (Plateau de Bure Interferometer and 30-m telescope) Dan M., Neri R., Sievers A. <IRAM Newsletters (1991-2015)>
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. NOEMA (NOrthern Extended Millimeter Array) is the successor to the Plateau du Bure observatory. During its history, the observatory at the Plateau de Bure underwent several track extensions, received additional antennas (all of 15m diameter and similar construction as the first ones) and technical upgrades. From a three antenna interferometer with a maximum baseline of 288 meters in 1988, it has evolved to a eight-antenna array with baselines up to 760 meters in 2016. With the inauguration of the seventh antenna in September 2014, the observatory has started its transformation into NOEMA. 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 2016 pdbi_pi.dat 51 2987 List of PI investigators of PdBI instrument noema.dat 153 299 The Plateau de Bure Interferometer (Noema) Observation Log since 2016 noema_pi.dat 51 68 List of PI investigators of Noema instrument 30m.dat 200 449983 List of observations at 30m instrument between 2009-09-30 and 2014-06-30 30m_pi.dat 51 1044 List of PI investigators of 30m instrument
See also: http://www.iram-institute.org/ : the IRAM Home Page Byte-by-byte Description of file: pdbi.dat noema.dat
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
Bytes Format Units Label Explanations
1- 8 A8 --- Prog Identification code of the program 10- 51 A42 --- PI Principal Investigator's name
Byte-by-byte Description of file: 30m.dat
Bytes Format Units Label Explanations
1- 20 A20 --- Name Target source name 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 τ 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 * 10-jan-2017: File "noema.dat"
(End) Francois Ochsenbein [CDS] 14-Apr-2008
The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line

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