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J/AJ/112/2786 1985-1995 lunar occultations at TIRGO (Richichi+ 1996)
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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
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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:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 80 157 Occultation Parameters
table2.dat 95 153 X-id, V,K and Sp
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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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
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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)
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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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 2000 (hours)
46- 47 I2 min RAm ! Right Ascension 2000 (minutes)
49- 53 F5.2 s RAs ! Right Ascension 2000 (seconds)
55 A1 --- DE- ! Declination 2000 (sign)
56- 57 I2 deg DEd ! Declination 2000 (degrees)
59- 60 I2 arcmin DEm ! Declination 2000 (minutes)
62- 65 F4.1 arcsec DEs ! Declination 2000 (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
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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.
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(End) [Calamai, Fabbroni] 7-May-1997