Access to Astronomical Catalogues

J/AJ/112/2786       1985-1995 lunar occultations at TIRGO    (Richichi+ 1996)
The TIRGO lunar occultation program: summary of the 1985-1995 observations.
     Richichi A., Baffa C., Calamai G., Lisi F.,
    <Astron. J. 112, 2786 (1996)>
    =1996AJ....112.2786R
ADC_Keywords: Occultations ; Photometry, infrared

Keywords: occultations - stars: binaries: close - stars: binaries:
       spectroscopic - stars: binaries: visual - astrometry - stars:
       angular diameters.

Abstract:
    A program of observations of lunar occultations in the near-infrared
    was started at the TIRGO observatory in late 1985. After ten years of
    operation, we provide a list of all the events recorded up to the end
    of 1995 using the facility IR photometer. A total of 157 light curves
    were obtained, mostly aiming at measurements of angular diameters and
    binaries, with a total of 54 results in these fields. In Table 1 is
    reported a summary of the occultation events and the parameters of
    their observations. In Table 2 is reported a list of
    cross-identifications, coordinates, and characteristics.

File Summary:

       FileName      Lrecl  Records   Explanations

ReadMe            80        .   This file
table1            80      157   Occultation Parameters
table2            95      153   X-id, V,K and Sp


Byte-by-byte Description of file: table1

   Bytes Format  Units   Label    Explanations

   1-  3  I3     ---     N.       ! Event sequential identification number
   5- 19  A15    ---     Name     ! Source name
  21- 28  A8     ---     Date     ! UT date of event
      30  A1     ---     Dark    *[ND] Night- or day-time flag
      32  A1     ---     Event   *[DR] Circumstance of event
      34  A1     ---     Filter  *[JHKL#] Filter used
  36- 37  I2     arcsec  Diaphr  *! Diaphragm used
  39- 43  F5.2   ms      IntTime  ! Integration time in ms
  45- 49  F5.2   ms     SampTime  ! Sampling time in ms
      51  A1     ---     Gain    *[HL] Charge preamplifier gain used
  53- 56  I4     deg     CA      *! Contact angle
  58- 60  I3     deg     PA      *! Position angle
  62- 66  F5.1   ---     SNR     *? Signal to noise ratio
  68- 73  A6     ---     Rem.    * Remarks
  75- 79  A5     ---     Ref.    * References

Note on Dark:
         N = night-time
         D = day-time
Note on Event:
         R = reappearance
         D = disappearance
Note on Filter:
       J,H,K,L = broadband filter name
       #       = narrow band around 2.16um
       For details see AJ,112,2786.
Note on Diaphr:
    Diaphragm diameter (equivalent seconds of arc on the sky).
Note on Gain:
    Charge preamplifier gain.
       L = low gain
       H = high gain
Note on CA:
    Contact angle, that is the predicted angle between the direction of
    the lunar motion and the contact angle (degrees).
Note on PA:
    Position angle, that is the predicted angle along which the
    Moon's limb scanned the source (degrees).
Note on SNR:
    Signal to noise ratio as measured on the ligthcurve.
Note on Rem.:
     D    = resolved angular diameter
     S    = circumstellar shell
     B    = binary
     50Hz = data affected by strong 50Hz pick-up
     Sat. = part of the lightcurve was saturated
     2b   = gap between the blocks
     eob  = data near the edge of a block
Note on Ref.:
     1 = Richichi, A. 1987, Mem. Soc. Astron. Ital., 58, 431
            (1987MmSAI..58..431R)
     2 = Richichi, A., Salinari, P., Lisi, F. 1988, Astrophys. J., 326, 791
            (1988ApJ...326..791R)
     3 = Richichi, A. 1989, Astron. Astrophys., 226, 366
            (1989A&A...226..366R)
     4 = Richichi, A., Di Giacomo, A., Lisi, F., Calamai, G., 1992,
            Astron. Astrophys., 265, 535 (1992A&A...265..535R)
     5 = Richichi, A., Calamai, G., Leinert, Ch., Stecklum, B., Trunkovsky, E.M.
            1996a, Astron. Astrophys., 309, 163 (1996A&A...309..163R)
     6 = Richichi, A., Lisi, F., Calamai, G. 1991, Astron. Astrophys., 241, 131
            (1991A&A...241..131R)
     7 = Richichi, A., Calamai, G., Leinert, Ch. 1994, Astron. Astrophys.,
            286, 829 (1994A&A...286..829R)
     8 = Di Giacomo, A., Richichi, A., Lisi, F., Calamai, G. 1991,
            Astron. Astrophys., 249, 397 (1991A&A...249..397D)
     9 = Richichi, A., et al. 1995,A&A, 301, 439 (1995A&A...301..439R)
    10 = Richichi, A., Calamai, G., Leinert, Ch., Stecklum, B., 1996b,
            Astron. Astrophys., accepted (1997A&A...322..202R)


Byte-by-byte Description of file: table2

   Bytes Format  Units   Label    Explanations

   1-  3  I3     ---     N.       ! Identification number of Table 1
   5- 10  A6     ---     SAO      Source SAO number
  12- 17  A6     ---     HD       Source HD number
  19- 24  A6     ---     IRC      Source IRC number
  26- 41  A16    ---     Other    Other source name
  43- 44  I2     h       RAh      ! Right Ascension J2000 (hours)
  46- 47  I2     min     RAm      ! Right Ascension J2000 (minutes)
  49- 53  F5.2   s       RAs      ! Right Ascension J2000 (seconds)
      55  A1     ---     DE-      ! Declination J2000 (sign)
  56- 57  I2     deg     DEd      ! Declination J2000 (degrees)
  59- 60  I2     arcmin  DEm      ! Declination J2000 (minutes)
  62- 65  F4.1   arcsec  DEs      ! Declination J2000 (seconds)
  67- 71  F5.1   mag     Vmag     ? V magnitude
      73  A1     ---     u_Vmag   [ :] Note on V magnitude
  75- 78  F4.1   mag     Kmag     ? K magnitude
      80  A1     ---     u_Kmag  *[a,b :] Note on K magnitude
  82- 93  A12    ---     Sp       Spectral type

Note on u_Kmag:
       a = K magnitude derived from the V magnitude and the color for the
           assumed spectral type.
       b = K magnitude derived from the intensity of the signal during the
           occultation event.

(End)                                         [Calamai, Fabbroni]    7-May-1997