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II/297           AKARI/IRC mid-IR all-sky Survey    (ISAS/JAXA, 2010)

The AKARI/IRC Mid-Infrared All-Sky Survey (Version 1) Ishihara D., Onaka T., Kataza H., Salama A., Alfageme C., Cassatella A., Cox N., Garcia-Lario P., Stephenson C., Cohen M., Fujishiro N., Fujiwara H., Hasegawa S., Ita Y., Kim W., Matsuhara H., Murakami H., Muller T.G., Nakagawa T., Ohyama Y., Oyabu S., Pyo J., Sakon I., Shibai H., Takita S., Tanab T., Uemizu K., Ueno M., Usui F., Wada T., Watarai H., Yamamura I., Yamauchi C. <Astron. Astrophys. 514, A1 (2010)> =2010A&A...514A...1I
ADC_Keywords: Infrared sources ; Surveys ; Photometry, infrared Mission_Name: AKARI Keywords: infrared: general - techniques: image processing - surveys 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/IRC Point Source Catalogue Version 1.0 provides positions and fluxes for 870,973 sources observed with the InfraRed Camera (IRC): 844,649 sources in the S9W filter, and 194,551 sources in the L18W filter; the "Note (1)" section below provides a summary of the IRC filter characteristics. 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 () 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
ReadMe 80 . This file irc.dat 196 870973 AKARI/IRC All-Sky Survey Point Source Catalogue (Version 1.0)
See also: II/298 : AKARI/FIS Bright Source 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: irc.dat
Bytes Format Units Label Explanations
2- 10 I9 --- objID [200000001/200870973] AKARI source ID number. 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) 49- 53 F5.2 arcsec errMaj Major axis of position error ellipse 57- 61 F5.2 arcsec errMin Minor axis of position error ellipse 64- 69 F6.2 deg errPA Position angle of Major axis 70- 80 E11.4 Jy S09 ?=-999.9 Flux density in AKARI/S9W filter (1) 81- 91 E11.4 Jy S18 ?=-999.9 Flux density in AKARI/L18W filter (1) 92-101 E10.3 Jy e_S09 ?=-1000 Flux error in S9W 102-111 E10.3 Jy e_S18 ?=-1000 Flux error in L18W 113 I1 --- q_S09 [0,3] Flux quality flag for S9W (3) 115 I1 --- q_S18 [0,3] Flux quality flag for L18W (3) 117-119 A3 --- --- [0] 120 A1 --- f09 [0-9a-f] Bit flags for S9W (4) 122-124 A3 --- --- [0] 125 A1 --- f18 [0-9a-f] Bit flags for L18W (4) 127-130 I4 --- Ns09 Number of scans with source detection in S9W 132-135 I4 --- Ns18 Number of scans with source detection in L18W 137-140 I4 --- Np09 Number of scans with possible detection in S09W 142-145 I4 --- Np18 Number of scans with possible detection in L18W 147-148 I2 --- M09 [0,1]?=-1 1 is month confirmed and 0 is not. (inverted value of lower bit of f09) 150-151 I2 --- M18 [0,1]?=-1 1 is month confirmed and 0 is not. (inverted value of lower bit of f18) 153-155 I3 --- Nd09 ?=-1 Number of sources in 45" radius in S9W 157-159 I3 --- Nd18 ?=-1 Number of sources in 45" radius in L18W 161-162 I2 --- X09 [0,1]?=-1 Extended source flag (5) 164-165 I2 --- X18 [0,1]?=-1 Extended source flag (5) 167-173 F7.2 arcsec r09 ?=-999.9 Radius of source extent in S9W (6) 175-181 F7.2 arcsec r18 ?=-999.9 Radius of source extent in L18W (6) 183-186 I4 --- Ndet Number of events used for position computation 188-191 I4 --- N09 Number of events used for S09 measurement 193-196 I4 --- N18 Number of events used for S18 measurement
Note (1): the filter characteristics are: ------------------------------------------------- Filter: S9W L18W ------------------------------------------------- Center(um): 9 18 Width(um): 4.10 9.97 Range(um): 6.7-11.6 13.9-25.6 Pixel("): 9.4x9.4 10.4x9.4 Limit(mJy): 50 120 [at 5σ] ------------------------------------------------- Note (2): The sources should be referred in the literatures by their full name (AKARI-IRC-V1) followed by the letter 'J' and the objName, e.g. AKARI-IRC-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 = not month confirmed. This means that the period between the first detection and the last detection is shorter than a month. 2 = saturated (not used this version); 4 = use events affected by the South Atlantic Anomaly (SAA) (not used in this version), 8 = use edge events Combined values are represented by the sum, e.g. 9 = 8 + 1 = not month confirmed AND used edge events. Note (5): the value 1 means that the source is possibly more extended than the point spread function (>15.6arcsec) Note (6): average of major and minor axes of source extent = (a+b)/2
History: * 21-Apr-2010: from the AKARI pages http://www.ir.isas.jaxa.jp/AKARI/Observation/PSC/Public/
(End) Francois Ochsenbein [CDS] 21-Apr-2010
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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