ACDS V10.0 - Sat Apr 27 10:00:11 CEST 2019
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Detailed Description of II/298 :
AKARI/FIS All-Sky Survey Point Source Catalogues (ISAS/JAXA, 2010)
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Note : this is the description file of the original catalog.
This HTML page corresponds well to the original description, but some minor
changes in the format may have been introduced in the FITS output
files in order to allow for arithmetic operations on quantities
such as coordinates and times. h:m:s and d:m:s units are normally
converted into degrees, and YYYY-MM-DD into julian days.
Similarly, some slight changes may have been introduced in the
units; the value given in the HTML files supersedes the value indicated in the ReadMe
file for this catalogue.
II/298 AKARI/FIS All-Sky Survey Point Source Catalogues (ISAS/JAXA, 2010)
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AKARI/FIS All-Sky Survey Bright Source Catalogue Version 1.0
Yamamura I., Makiuti S., Ikeda N., Fukuda Y., Oyabu S., Koga T., White G.J.
<ISAS/JAXA (2010)>
=2010yCat.2298....0Y
================================================================================
ADC_Keywords: Infrared sources ; Surveys ; Photometry, infrared
Mission_Name: AKARI
Description:
The AKARI Infrared Astronomical Satellite observed the whole sky in
the far infrared (50-180µm) and the mid-infrared (9 and 18µm)
between May 2006 and August 2007 (Murakami et al. 2007PASJ...59S.369M)
The AKARI/FIS All-Sky Survey Bright Source Catalog Version 1.0
provides positions and fluxes for 427071 point sources in the 4
far-infrared wavelengths centered at 65, 90, 140 and 160µm (see
filter characteristics in the "Note (1)" section below)
Recommendation:
The users of the catalogue are requested to read the documents
carefully before critical discussions of the data. Any questions and
comments are appreciated at ISAS Helpdesk (iris_help@ir.isas.jaxa.jp)
Acknowledging AKARI data in publications:
Please acknowledge the usage of the AKARI data (details at
http://www.ir.isas.jaxa.jp/AKARI/Publications/guideline.html).
File Summary:
FileName Lrecl Records Explanations
× 80 . This file
× ReadMe 80 . This file
× fis.dat 231 427071 AKARI/FIS All-Sky Survey Bright Source Catalogue
(Version 1.0)
See also:
II/297 : AKARI/IRC All-Sky Survey Point Source Catalogue (ISAS/JAXA, 2010)
http://www.ir.isas.jaxa.jp/AKARI/Observation/PSC/Public/ : AKARI home page
http://darts.isas.jaxa.jp/astro/akari/cas.html : AKARI Archive Server
Byte-by-byte Description of file: fis.dat
Bytes Format Units Label Explanations
1 A1 --- --- [0]
2- 10 I9 --- objID [3000001/3427071] Object ID
12- 25 A14 --- objName AKARI source name (HHMMSSs+DDMMSS) (2)
27- 35 F9.5 deg RAdeg Right Ascension (J2000)
37- 45 F9.5 deg DEdeg Declination (J2000)
47- 51 F5.2 arcsec errMaj [6.00] Major axis of position error ellipse
53- 57 F5.2 arcsec errMin [6.00] Minor axis of position error ellipse
59- 63 F5.1 deg errPA [0.0] position angle of error ellipse
65- 74 E10.4 Jy S65 ?=-999.9 Flux density in N60 (1)
76- 85 E10.4 Jy S90 ?=-999.9 Flux density in WIDE-S (1)
87- 96 E10.4 Jy S140 ?=-999.9 Flux density in WIDE-L (1)
98-107 E10.4 Jy S160 ?=-999.9 Flux density in N160 (1)
109-117 E9.3 Jy e_S65 ?=-99.9 uncertainty in N60
119-127 E9.3 Jy e_S90 ?=-99.9 uncertainty in WIDE-S
129-137 E9.3 Jy e_S140 ?=-99.9 uncertainty in WIDE-L
139-147 E9.3 Jy e_S160 ?=-99.9 uncertainty in N160
149 I1 --- q_S65 [0,3] quality flag for N60 (3)
151 I1 --- q_S90 [0,3] quality flag for WIDE-S (3)
153 I1 --- q_S140 [0,3] quality flag for WIDE-L (3)
155 I1 --- q_S160 [0,3] quality flag for N160 (3)
157-159 A3 --- --- [0]
160 A1 --- f_S65 [0-9A-F] Bit flags for N60 (4)
162-164 A3 --- --- [0]
165 A1 --- f_S90 [0-9A-F] Bit flags for WIDE-S (4)
167-169 A3 --- --- [0]
170 A1 --- f_S140 [0-9A-F] Bit flags for WIDE-L (4)
172-174 A3 --- --- [0]
175 A1 --- f_S160 [0-9A-F] Bit flags for N160 (4)
177-180 I4 --- Ns65 Number of scans with source detection in N60
182-185 I4 --- Ns90 Number of scans with source detection in WIDE-S
187-190 I4 --- Ns140 Number of scans with source detection in WIDE-L
192-195 I4 --- Ns160 Number of scans with source detection in N160
197-200 I4 --- Np65 Number of possible detections in N60
202-205 I4 --- Np90 Number of possible detections in WIDE-S
207-210 I4 --- Np140 Number of possible detections in WIDE-L
212-215 I4 --- Np160 Number of possible detections in N160
217-218 I2 --- M65 [0,1]?=-1 month confirmation flag in N60 (5)
220-221 I2 --- M90 [0,1]?=-1 month confirmation flag in WIDE-S (5)
223-224 I2 --- M140 [0,1]?=-1 month confirmation flag in WIDE-L (5)
226-227 I2 --- M160 [0,1]?=-1 month confirmation flag in N160 (5)
229-231 I3 --- Ndens Number of sources within 5arcmin of source
Note (1): the filter characteristics are:
-----------------------------------------------------
Filter: N60 WIDE-S WIDE-L N160
-----------------------------------------------------
Center(um): 65 90 140 160
Range(um): 50-80 60-110 110-180 140-180
Pixel("): 26.8 26.8 44.2 44.2
-----------------------------------------------------
Note (2):
The sources should be referred in the literatures by their full name
(AKARI-FIS-V1) followed by the letter 'J' and the objName, e.g.
AKARI-FIS-V1 J0123498-025805
Note (3): Four-level flux quality indicator:
3 = high quality (source confirmed and flux is reliable)
2 = source is confirmed but the flux is not reliable (see the flags)
1 = the source is not confirmed
0 = not observed
Note (4): Bit flags of data quality in hexadecimal:
1 = CDS mode used (Correlated Double Sampling used to observe
bright sky regions to avoid saturation, e.g. in the inner
Galactic plane)
2 = flux too low
4 = (not used)
8 = possibly a 'side-lobe' detection
Combined values are represented by the sum, e.g. 9 = 8 + 1 =
a possible side-lobe detection in CDS mode.
Note (5): The value is 1 when the source is observed in scans separated by
more than one month. This value is independent from hour confirmation
and can be 1 even if the source is not confirmed (q_=1); similarly a
value of 0 does not mean that the source is unreliable.
History:
* 21-Apr-2010: from the AKARI pages
http://www.ir.isas.jaxa.jp/AKARI/Observation/PSC/Public/
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(End) Francois Ochsenbein [CDS] 30-Apr-2010