HD157857 (spirou_offline_udem)

This page was last modified: 2025-08-26 16:49:20.205961 (UTC)

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Contents

Target info

This section gives some details of the APERO astrometric database used when processing this target (e.g. for BERV calculation). Any observation with a object name in the alias list will be associated with this “APERO target” i.e. DRSOBJN=HD157857

Target Information

RA

261.5721611 [deg] (Gaia DR2)

Dec

-10.99299355 [deg] (Gaia DR2)

Finder chart

[FINDER CHART]

Teff

36700.0 [K] (2018A&A…613A..65H)

Spectral Type

O6.5II(f) (2011ApJS..193…24S)

Proper Motion (RA)

-12.70227267 [mas/yr] (Gaia DR2)

Proper Motion (Dec)

0.5759712955 [mas/yr] (Gaia DR2)

Parallax

0.2516558079 [mas/yr] (Gaia DR2)

Radial Velocity

57.6 [mas/yr] (2006AstL…32..759G)

Aliases

2MASS J17261733-1059347, ALS 9335, BD-10 4493, CGO 456, EM* CDS 913, GC 23606, GCRV 10076, GEN# +1.00157857, GOS G012.97+13.31 01, GSC 05662-00844, Gaia DR2 4165963456443515520, HD 157857, HIC 85331, HIP 85331, LS IV -10 2, MCW 566, PPM 233064, ROT 2448, SAO 160545, SKY# 31469, SRS 14201, TD1 20421, TIC 2202470, TYC 5662-844-1, UBV 14863, UBV M 22180, WEB 14408, YZC 11 5951, [HJ56] 113, uvby98 100157857, ALS 9335, BD-10 4493, EM* CDS 913, HD157857, HD_157857, HIC 85331, HIP 85331, LS IV -10 2, MCW 566, ROT 2448, SRS 14201, UBV 14863, UBV M 22180, YZC 11 5951, 2MASSJ17261733-1059347, ALS9335, BD-104493, CGO456, EM*CDS913, GC23606, GCRV10076, GEN#+1.00157857, GOSG012.97+13.3101, GSC05662-00844, GaiaDR24165963456443515520, HD157857, HIC85331, HIP85331, LSIV-102, MCW566, PPM233064, ROT2448, SAO160545, SKY#31469, SRS14201, TD120421, TIC2202470, TYC5662-844-1, UBV14863, UBVM22180, WEB14408, YZC115951, [HJ56]113, uvby98100157857, ALS9335, BD-104493, EM*CDS913, HD157857, HD157857, HIC85331, HIP85331, LSIV-102, MCW566, ROT2448, SRS14201, UBV14863, UBVM22180, YZC115951

OBJECT name(s) in headers

HD 157857, HD157857

PI name(s) in headers

Fabrice Martins

Project/Run name(s) in headers

21BF01

Spectrum

This section presents the observation after extraction,with and without telluric correction.

../../../_images/spec_plot_HD157857_spirou_offline_udem.png

Spectrum Information

DPRTYPES

OBJ_FP

Total number raw files

2

First raw files

2020-09-04 05:11:48.253

Last raw files

2024-03-20 12:46:40.847

Total number PP files

1

Number PP files passed QC

1

Number PP files failed QC

0

First pp file [Mid exposure]

2024-03-20 12:46:40.847

Last pp file [Mid exposure]

2024-03-20 12:46:40.847

Last processed [pp]

2025-07-26 18:27:20.067

Version [pp]

0.7.293

Total number ext files

1

Number ext files passed QC

1

Number ext files failed QC

0

First ext file [Mid exposure]

2024-03-20 12:46:40.847

Last ext file [Mid exposure]

2024-03-20 12:46:40.847

Last processed [ext]

2025-07-26 23:45:09.241

Version [ext]

0.7.293

Total number tcorr files

1

Number tcorr files passed QC

1

Number tcorr files failed QC

0

First tcorr file [Mid exposure]

2024-03-20 12:46:40.847

Last tcorr file [Mid exposure]

2024-03-20 12:46:40.847

Last processed [tcorr]

2025-07-27 09:30:35.015

Version [tcorr]

0.7.293

Median SNR Y

64.99 \(\pm\) 0.00

Median SNR H

70.49 \(\pm\) 0.00

Request

Extracted 2D spectra

Extracted 1D spectra

Telluric corrected 2D spectra

Telluric corrected 1D spectra

2D Template (after telluric correction)

1D Template (after telluric correction)

Packaged extraction files (e.fits)

Packaged telluric corrected files (t.fits)

Packaged s1d extract+tcorr (s.fits)

Packaged velocity files (v.fits)

Packaged polarimetry files (p.fits)

Spectrum Downloads

File URL

Uploaded

Extracted 2D spectra

ext2d_HD157857_spirou_offline_udem_file_list.txt

2025-08-26 16:49:29.798

Extracted 1D spectra

ext1d_HD157857_spirou_offline_udem_file_list.txt

2025-08-26 16:49:29.892

Telluric corrected 2D spectra

tcorr2d_HD157857_spirou_offline_udem_file_list.txt

2025-08-26 16:49:29.980

Telluric corrected 1D spectra

tcorr1d_HD157857_spirou_offline_udem_file_list.txt

2025-08-26 16:49:30.065

Extracted 2D header file

ext2d_header_HD157857_spirou_offline_udem_file.csv

2025-08-26 16:49:29.673

LBL

No LBL reduction found

CCF

This section presents the APERO CCF results for this object.

../../../_images/ccf_plot_HD157857_spirou_offline_udem.png

CCF stats

Mask used

GL846_neg.fits

CCF systemic velocity

298662.50 \(\pm\) 0.00 m/s

CCF FWHM

3867.22 \(\pm\) 0.00 m/s

Number of CCF files Total

1

Number of CCF passed QC

1

Number CCF files failed QC

0

First ccf file [Mid exposure]

2024-03-20 12:46:40.847

Last ccf file [Mid exposure]

2024-03-20 12:46:40.847

Last processed [ccf]

2025-07-27 10:53:08.314

Version [ccf]

0.7.293

Request

CCF files

CCF Downloads

File URL

Uploaded

CCF Table

ccf_HD157857_spirou_offline_udem_file_list.txt

2025-08-26 16:49:32.340

Time series

This section deals with providing the time series information for this object

Obs Dir

First obs mid

Last obs mid

Number of ext

Number of tcorr

Seeing

Airmass

Mean Exptime

Total Exptime

SNR[Order 8 (#71 1.08um)]

SNR[Order 35 (#44 1.75um)]

DPRTYPEs

ext_files

tcorr_files

Request ext files

Request tcorr files

2024-03-20

2024-03-20 12:46:40.847

2024-03-20 12:46:40.847

1

1

-9999.900

1.820

507.045

507.045

64.987

70.490

OBJ_FP

1 [download]

1 [download]

Extracted 2D files

Telluric corrected 2D files

Debug

This section has various debug plots from APERO products

Telluric map

../../../_images/debug_tcorr_map_plot_HD157857_spirou_offline_udem.png

Telluric map of e2dsff_tcorr_A files.Files are low-passed and corrected for the stars motion. The QC is displayed to the right of the image - in purple are the files that passed, in orange the files that failed.

Maximum Saturation level plot

../../../_images/debug_extsmax_plot_HD157857_spirou_offline_udem.png

Maximum saturation level measured at time of extraction

Measured effective readout noise before extraction

../../../_images/debug_effron_plot_HD157857_spirou_offline_udem.png

Measured effective readout noise before extraction

APERO Processing Debug Plot

../../../_images/debug_version_plot_HD157857_spirou_offline_udem.png

Plotting the version and processed date from the header from APERO. Note that offline reductions should lead to a straight line, while online reductions should be roughly a one-to-one with the Date axis.

APERO Calibration times plot

../../../_images/debug_mjd_cdt_plot_HD157857_spirou_offline_udem.png

Computed time between observation and calibration used. Some calibrations arereference calibrations (in purple) and thus diverge from the reference night, others should always be from the same night (orange) unless no calibration was taken that night in which case the closest calirbation in time should have been used.