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B/corot             CoRoT observation log (N2-4.4)                  (CoRoT 2016)

Archive of the CoRoT Data Center, Release N2-4.4 (2016-03-23) CoRoT team <CoRoT Data Center (2014)> =2014yCat....102028C
ADC_Keywords: Observatory log ; Stars, variable Mission_Name: CoRoT Description: CoRoT, a space astronomy mission, has measured photometric micro-variability of stars from minutes to months (up to 150 days) with a high duty cycle (more than 90%). The mission was led by CNES in association with four French laboratories and 7 participating countries and agencies (Austria, Belgium, Brazil, Germany, Spain, and the ESA Science Programme). The satellite was composed of a PROTEUS platform (the 3rd in the series) and a unique instrument: a stellar rapid photometer. It was launched on December 27th 2006 by a Soyuz Rocket, from Baïkonour. The mission has lasted almost 6 years (the nominal 3-year duration and a 3-year extension) and has observed more than 160 000 stars. It stopped sending data on November 2nd 2012. Two regions of the sky were accessible for long period of time: circles of 10 degrees centered on the equator around alpha=06:50 and alpha=18:50. They were called the CoRoT eyes: the "anticenter" and the "center eye" (as they are approximately in these directions). Each pointing covers 1.4x2.8 square degrees within one of those CoRoT eyes. The original scientific objectives were focussed on the study of stellar pulsations (asteroseismology) to probe the internal structure of stars, and the detection of small exoplanets through their "transit” in front of their host star, and the measurement of their size. This lead to introduce two modes of observations, working simultaneously: - The “bright star” mode dedicated to very precise seismology of a small sample of bright and closeby stars - The “faint star” mode, observing a very large number of stars at the same time, to detect transits, which are rare events, as they imply the alignment of the star, the planet and the observer. The large amount of data gathered in this mode turned out to be extremely fruitful for many topics of stellar physics. Beyond these two initial objectives, CoRoT data revealed stellar variability associated with various other phenomena: granulation, rotational modulation by spots associated with magnetic activity, oblateness induced by a nearby companion star, ... The data of this CoRoT CDS archive correspond to the legacy release V4.4 of CoRoT N2 data. A complete description can be found in the "CoRoTN2versions_30sept2014.pdf" document available on the vizier ftp as well as on project websites listed in the "See also" field below. Other archives provide an access to the CoRoT data at different levels, or to complementary catalogues - the CoRoT IAS archive at idoc-corot.ias.u-psud.fr/ and mirrors of this archive at exoplanetarchive.ipac.caltech.edu/applications/ETSS/CoRoTexoindex.html and at exoplanetarchive.ipac.caltech.edu/applications/ETSS/CoRoTasteroindex.html - archive at https://sipad-corot.cnes.fr/ or at the CoRoT IAS archive, but they require a deep understanding of the instrument and the observation conditions to be scientifically helpful. - Raw data N0 are available upon request at the CoRoT CNES archive. - Complementary data on the CoRoT targets, obtained through ground based complementary observations, can be found in : * EXODAT for the faint star fields at http://cesam.oamp.fr/exodat/quick-access/retrieve-corot-star * GAUDI for the bright star fields at http://sdc.cab.inta-csic.es/gaudi/ File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file Bright_star.dat 404 171 Stars observed in the bright star mode Faint_star.dat 608 177382 Stars observed in the faint star mode files/* 0 13 All FITS files (directory tree with 355280 files)
See also: https://sipad-corot.cnes.fr : CNES N0-N1 archive http://idoc-corot.ias.u-psud.fr/ : the CoRoT IAS Data Center Archive http://smsc.cnes.fr/COROT/GP_mission.htm : the CoRoT observation strategy http://idoc-corotn2-public.ias.u-psud.fr/jsp/CorotHelp.jsp : More doc Doc. http://cdsarc.u-strasbg.fr/ftp/B/corot/COROT-N2_DATA_publication_web.pdf Byte-by-byte Description of file: Bright_star.dat
Bytes Format Units Label Explanations
1- 19 A19 "datime" FileDate (crea_dat) File generation date 21-120 A100 --- FileName (filename) Name of file with time series 122-129 A8 --- PV (pipe_ver) Pipeline process version 131-133 A3 --- N2V (n2_ver) Version of N2 data 135-153 A19 "datime" date1 (startdat) UT date of first measurement 155-173 A19 "datime" date2 (end_date) UT date of last measurment 178-186 I9 --- CoRoT [1/21960] (corotid) ID of the CoRoT target 188-192 A5 --- Run [SLIRca0-9] (run_code) (G1) 194-196 A3 --- CCD ? (hlfccdid) reference of the half CCD from which the product originates e.g. 'E1R' for Right CCD#1 of Exoplanet channel 198-203 F6.3 mag Vmag ? (magnit_v) Visual magnitude of the target 205-210 F6.3 mag (B-V) ? (mag_diff) Color index (B-V) 212-220 F9.5 deg RAdeg (alpha) Right ascension of star, J2000 222-230 F9.5 deg DEdeg (delta) Declination, J2000 (degrees) 232-239 I8 byte size ? (filesize) [17280,32921280] bytes in file 241-255 A15 --- Star Name of the star observed 257-262 F6.2 mag VMAG ? (absm_v) Star absolute magnitude in V 264-268 I5 K Teff ? (teff) Star effective temperature 270-274 F5.2 [cm/s2] logg ? (gravity) Star gravity (log scale) 276-280 F5.2 [Sun] [Fe/H] ? (metal) Star metallicity (log scale) 282-293 E12.6 ct/s LCmean ? (lc_mean) light curve mean intensity 295-306 E12.6 ct/s LCrms ? (lc_rms) light curve rms 308-309 I2 pix Nh [-1] (nbhotpix) Number of hot pixels 311-320 A10 --- SpT ? (spectral_type) Spectral type, from EXODAT 322-404 A83 --- W.file Name of associated WINDESCRIPTOR file
Byte-by-byte Description of file: Faint_star.dat
Bytes Format Units Label Explanations
1- 19 A19 "datime" FileDate (crea_dat) File generation date 21-120 A100 --- FileName (filename) Name of file with time series 122-129 A8 --- PV (pipe_ver) Pipeline process version 131-133 A3 --- N2V (n2_ver) Version of N2 data 135 A1 --- col [01] 0 = monochrome results, 1 = 3-channels 137-144 I8 byte size ? Size of file (bytes) 146-168 A23 "datime" date1 (startdat) UT date of first measurement 170-192 A23 "datime" date2 (end_date) UT date of last measurement 194-202 I9 --- CoRoT [100396342/739016552] (corotid) ID of the CoRoT target 204-208 A5 --- Run [SLIRca0-9] (run_code) (G1) 210-212 A3 --- CCD (hlfccdid) reference of the half CCD from which the product originates e.g. E1R for Right CCD#1 of Exoplanet channel 215-218 I4 --- wId ? (win_id) Window identification 220-225 F6.3 mag mag ?=0 (magnitud) Magnitude of the target 227-232 F6.3 mag (B-V) ? (colbv) Color index (B-V) 234-242 F9.5 deg RAdeg (alpha) Right ascension of star, J2000 244-252 F9.5 deg DEdeg (delta) Declination, J2000 (degrees) 254-261 F8.6 --- contf [0,1]? (contfact) contamination factor 263-265 I3 s Exp [-1,512]? (exptime) Exposure time 267-269 F3.1 --- cd [0]? (chrdeg) chromacity degree 271-273 F3.1 --- act [0]? (actilev) Level of stellar activity 275-279 A5 --- V1 ? (varclas1) star variability (1) 281-285 A5 --- V2 ? (varclas2) star variability (1) 287-291 A5 --- V3 ? (varclas3) star variability (1) 293-297 F5.3 --- pv1 [0,1]? (prbclas1) probability associated to varclass V1 299-303 F5.3 --- pv2 [0,1]? (prbclas2) probability associated to varclass V2 305-309 F5.3 --- pv3 [0,1]? (prbclas3) probability associated to varclass V3 311-316 F6.3 mag Bmag ? (magnit_b) Star magnitude B 318-323 F6.3 mag Vmag ? (magnit_v) Star magnitude V 325-330 F6.3 mag Rmag ? (magnit_r) Star magnitude R 332-337 F6.3 mag Imag ? (magnit_i) Star magnitude I 339-348 A10 --- Star Star name (always blank) 350-355 F6.2 mag VMAG ? (absm_v) Star absolute magnitude in V 358-362 I5 K Tcol [-1,41510]? (coltemp) Color temperature 364-368 I5 K Teff ?=0 (teff) Effective temperature 370-374 F5.2 [cm/s2] logg ? (gravity) Star gravity (log scale) 376-380 F5.2 [Sun] [Fe/H] ? (metal) Star metallicity (log scale) 382-393 E12.6 ct/s LCmean ? (lc_mean) light curve mean 395-406 E12.6 ct/s LCrms ? (lc_rms) light curve rms 409-410 I2 pix Nh (nbhotpix) Number of hot pixels 412-423 E12.6 ct/s Bmean ? (lcrmsb) light curve mean B 425-436 E12.6 ct/s Gmean ? (lcrmsg) light curve mean G 438-449 E12.6 ct/s Rmean ? (lcrmsr) light curve mean R 451-462 E12.6 ct/s Wmean ? (lcrmsr) light curve mean white light 464-475 E12.6 ct/s Brms ? (lcrmsb) light curve rms B 477-488 E12.6 ct/s Grms ? (lcrmsg) light curve rms G 490-501 E12.6 ct/s Rrms ? (lcrmsr) light curve rms R 503-514 E12.6 ct/s Wrms ? (lcrmsr) light curve rms white light 516-525 A10 --- SpT ? (spectral_type) Spectral type, from EXODAT 526-608 A83 --- W.file Name of associated WINDESCRIPTOR file
Note (1): the variability classification results from an automatic treatment of the light curve, and is quite uncertain. The classes are defined in Debosscher et al. 2009A&A...506..519D, as follows: ACT = presence of Activity BCEP = β-Cephei stars BE = Variable Be-stars CLCEP = Classical Cepheids (δ-Cep) CP = Chemically peculiar stars DMCEP = Double-mode Cepheids DSCUT = δ-Scuti stars E1L = (?undefined?) E1R = (?undefined?) E2L = (?undefined?) E2R = (?undefined?) ECL = Eclipsing binaries (all types) ELL = Ellipsoidal variables FUORI = FU-Ori stars GDOR = γ-Doradus stars HAEBE = Herbig Ae/Be stars LAPV = Low-amplitude periodic variables LBOO = λ-Bootis variables LBV = Luminous Blue variables MIRA = Mira variables MISC = Miscellanous variable (undecided) PTCEP = Population II Cepheids PVSG = Periodically variable supergiants ROT = Rotational modulation RRAB = RR-Lyrae stars, subtype ab RRC = RR-Lyrae stars, subtype c RRD = Double-mode RR-Lyrae stars RVTAU = RV-Tauri stars SDBV = Pulsating subdwarf B-stars SPB = Slowly pulsating B-stars SPDS = Short-period δ-Scuti variables SR = Semi-regular variables SXPHE = SX-Phe stars TTAU = T-Tauri stars WR = Wolf-Rayet stars XB = X-ray binaries
Global Notes: Note (G1): the run is coded "tRann", where t = 'L' (long), 'S' (short), or 'I' (initial) a = 'c' (center) or 'a' (anticenter), and nn = the run number. Examples: LRa01, SRc01, etc.
History: * 06-Feb-2009: Version 2 * 20-Aug-2009: Version 3.2 * 04-Dec-2009: Release 4 astero=50, exo=47811 5 runs: IRa01 + LRa01 + LRc01 + SRa01 + SRa02 (addition of variable types and probabilities) * 30-Mar-2010: Release 5 astero=60, exo=59219 6 runs: IRa01 + LRa01 + LRc01 + SRa01 + SRc01 + SRa02 * 10-Jul-2010: Release 6 astero=70, exo=69487 7 runs: IRa01 + LRa01 + LRc01 + SRa01 + SRc01 + SRa02 + LRc02 * 28-Oct-2010: Release 7 astero=80, exo=92385 9 runs: IRa01 + LRa01-02 + LRc01-03 + SRa01-02 + SRc01 * 11-Nov-2011: New (simplified) formats; astero=110, exo=108718 13 runs: IRa01 + LRa01-03 + LRc01-04 + SRa01-03 + SRc01-02 * 06-Mar-2012: astero=120, exo=114397 14 runs: IRa01 + LRa01-03 + LRc01-05 + SRa01-03 + SRc01-02 * 19-Apr-2012: astero=125, exo=120120 16 runs: IRa01 + LRa01-04 + LRc01-06 + SRa01-03 + SRc01-02 The width of the column "Star" in table "Bright_star.dat" was enlarged from 10 to 15 bytes. * 31-Jul-2012: astero=125 (no change), exo=124376 16 runs: IRa01 + LRa01-04 + LRc01-06 + SRa01-03 + SRc01-02 * 15-Jan-2013: astero=135, exo=129018 17 runs: IRa01 + LRa01-05 + LRc01-06 + SRa01-03 + SRc01-02 * 30-Apr-2013: astero=135, exo=138985 21 runs: IRa01 + LRa01-05 + LRc01-08 + SRa01-03 + SRa05 + SRc01-03 * 20-Jul-2013: astero=150, exo=150258 22 runs: IRa01 + LRa01-05 + LRc01-08 + SRa01-05 + SRc01-03 * 12-Jan-2014: astero=155, exo=156584 23 runs: IRa01 + LRa01-06 + LRc01-08 + SRa01-05 + SRc01-03 * 23-Mar-2016: astero=171, exo=177382, version N2-4.4
(End) Francois Ochsenbein [CDS], Sylviane Chaintreuil [LESIA] 23-Mar-2016
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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