VV_CRA_SW (spirou_offline_udem)

This page was last modified: 2025-05-15 14:29:41.183341 (UTC)

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Contents

• Target info

• Spectrum

• LBL

• CCF

• Time series

• Debug

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=VV_CRA_SW

Target Information
RA	285.7781056 [deg] (Gaia DR2)
Dec	-37.21391385 [deg] (Gaia DR2)
Finder chart	[FINDER CHART]
Teff	4500.0 [K] (Approx from K7 spt)
Spectral Type	K7 (2011A&A…527A.119B)
Proper Motion (RA)	2.598713063 [mas/yr] (Gaia DR2)
Proper Motion (Dec)	-26.22503974 [mas/yr] (Gaia DR2)
Parallax	6.695192571 [mas/yr] (Gaia DR2)
Radial Velocity	-2.8709 [mas/yr] (2020AJ….160..120J)
Aliases	VVCrASW, VV_CRA_SW
OBJECT name(s) in headers	VV CrA SW
PI name(s) in headers	Evelyne Alecian
Project/Run name(s) in headers	24AF13

Spectrum

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

Spectrum Information
DPRTYPES	POLAR_FP
Total number raw files	16
First raw files	2024-04-01 15:28:41.626
Last raw files	2024-06-23 11:10:51.922
Total number PP files	16
Number PP files passed QC	16
Number PP files failed QC	0
First pp file [Mid exposure]	2024-04-01 15:28:41.626
Last pp file [Mid exposure]	2024-06-23 11:10:51.922
Last processed [pp]	2025-04-29 19:01:22.588
Version [pp]	0.7.293
Total number ext files	16
Number ext files passed QC	16
Number ext files failed QC	0
First ext file [Mid exposure]	2024-04-01 15:28:41.626
Last ext file [Mid exposure]	2024-06-23 11:10:51.922
Last processed [ext]	2025-04-29 19:17:06.853
Version [ext]	0.7.293
Total number tcorr files	16
Number tcorr files passed QC	16
Number tcorr files failed QC	0
First tcorr file [Mid exposure]	2024-04-01 15:28:41.626
Last tcorr file [Mid exposure]	2024-06-23 11:10:51.922
Last processed [tcorr]	2025-04-29 20:15:44.586
Version [tcorr]	0.7.293
Median SNR Y	4.68 \(\pm\) 1.08
Median SNR H	69.00 \(\pm\) 17.40

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_VV_CRA_SW_spirou_offline_udem_file_list.txt	2025-05-15 14:29:45.811
Extracted 1D spectra	ext1d_VV_CRA_SW_spirou_offline_udem_file_list.txt	2025-05-15 14:29:45.811
Telluric corrected 2D spectra	tcorr2d_VV_CRA_SW_spirou_offline_udem_file_list.txt	2025-05-15 14:29:45.811
Telluric corrected 1D spectra	tcorr1d_VV_CRA_SW_spirou_offline_udem_file_list.txt	2025-05-15 14:29:45.811
Extracted 2D header file	ext2d_header_VV_CRA_SW_spirou_offline_udem_file.csv	2025-05-15 14:29:45.810

LBL (VV_CRA_SW_VV_CRA_SW)

This section presents the LBL results for VV_CRA_SW_VV_CRA_SW. The first object is the target we measure RVs for the second is the “friend” or “template” that was used to calculate those RVs.

LBL stats
RV Uncertainty lbl.rdb (25, 50, 75 percentile)	2.97, 3.21, 3.74 m/s
RV Absolute Deviation lbl.rdb (25, 50, 75 percentile)	1.69, 5.08, 58.13 m/s
Number of lbl.rdb Measurements	16
Number of lbl.rdb Spurious Low Points	0
Number of lbl.rdb Spurious High Points	0
Number of Nights	3
Number of Reset RV Points	5
Systemic Velocity	62622.80 m/s
Velocity Domain considered valid	62325.88 to 62780.19 m/s
LBL Version	0.65.002

Request
LBL fits files
lbl_rdb files
lbl2_rdb files
lbl_drift files
lbl2_drift files
lbl_fits files

LBL Downloads	File URL	Uploaded
RDB file	lbl_VV_CRA_SW_VV_CRA_SW.rdb	2025-05-08 20:16:07.984
RDB2 file	lbl2_VV_CRA_SW_VV_CRA_SW.rdb	2025-05-08 20:16:08.534
Drift file	lbl_VV_CRA_SW_VV_CRA_SW_drift.rdb	2025-05-08 20:16:11.694
Drift2 file	lbl2_VV_CRA_SW_VV_CRA_SW_drift.rdb	2025-05-08 20:16:11.758

LBL (VV_CRA_SW_GL846)

This section presents the LBL results for VV_CRA_SW_GL846. The first object is the target we measure RVs for the second is the “friend” or “template” that was used to calculate those RVs.

N/A

CCF

This section presents the APERO CCF results for this object.

CCF stats
Mask used	GL846_neg.fits
CCF systemic velocity	298849.49 \(\pm\) 5186.88 m/s
CCF FWHM	2710.59 \(\pm\) 1990.04 m/s
Number of CCF files Total	16
Number of CCF passed QC	16
Number CCF files failed QC	0
First ccf file [Mid exposure]	2024-04-01 15:28:41.626
Last ccf file [Mid exposure]	2024-06-23 11:10:51.922
Last processed [ccf]	2025-04-29 20:36:10.353
Version [ccf]	0.7.293

Request
CCF files

CCF Downloads	File URL	Uploaded
CCF Table	ccf_VV_CRA_SW_spirou_offline_udem_file_list.txt	2025-05-15 14:29:48.447

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
2024-04-01	2024-04-01 15:28:41.626	2024-04-01 15:42:04.126	4	4	-9999.900	1.967	245.164	980.656	5.948	96.060	POLAR_FP	4 [download]	4 [download]	Extracted 2D files	Telluric corrected 2D files
2024-04-24	2024-04-24 14:47:15.181	2024-04-24 15:00:43.315	4	4	-9999.900	1.848	245.164	980.656	4.959	73.271	POLAR_FP	4 [download]	4 [download]	Extracted 2D files	Telluric corrected 2D files
2024-06-22	2024-06-22 12:13:52.933	2024-06-22 12:27:15.425	4	4	0.698	1.915	245.164	980.656	3.804	63.029	POLAR_FP	4 [download]	4 [download]	Extracted 2D files	Telluric corrected 2D files
2024-06-23	2024-06-23 10:57:18.293	2024-06-23 11:10:51.922	4	4	1.083	1.843	245.164	980.656	4.000	60.248	POLAR_FP	4 [download]	4 [download]	Extracted 2D files	Telluric corrected 2D files

Debug

This section has various debug plots from APERO products

Telluric map

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

Maximum saturation level measured at time of extraction

Measured effective readout noise before extraction

Measured effective readout noise before extraction

APERO Processing Debug Plot

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

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.