V_DF_TAU (spirou_offline_udem)

This page was last modified: 2025-08-26 17:29:49.898387 (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=V_DF_TAU

Target Information

RA

66.76164903 [deg] (Gaia DR2)

Dec

25.70612313 [deg] (Gaia DR2)

Finder chart

[FINDER CHART]

Teff

3669.0 [K] (2020AJ….160..120J)

Spectral Type

M3Ve (1977ApJ…214..747H)

Proper Motion (RA)

3.50416597 [mas/yr] (Gaia DR2)

Proper Motion (Dec)

-26.65027264 [mas/yr] (Gaia DR2)

Parallax

8.041481402 [mas/yr] (Gaia DR2)

Radial Velocity

17.9643 [mas/yr] (2020AJ….160..120J)

Aliases

HD 283654, ** THB 1, AKARI-IRC-V1 J0427028+254222, AP J04270280+2542223, CSI+25-04235, CSI+25-04240, 2E 1039, 2E 0424.0+2535, EPIC 247986526, GCRV 55076, GSC 01820-00525, HBC 36, HIC 20777, HIP 20777, IRAS 04240+2535, IRAS F04239+2535, JP11 5479, JP11 5480, 2MASS J04270280+2542223, MHA 259-11, SSTtau 042702.8+254222, SV* SVS 1077, TIC 268016868, TYC 1820-1418-1, UBV 4281, UCAC2 40811057, V* DF Tau A, V* DF Tau B, V* DF Tau, WDS J04271+2542AB, WISE J042702.79+254222.2, WISE J042702.80+254222.2, [LLQ2015] TMO 29, AAVSO 0420+25A, Gaia DR3 151179966897747840, Gaia DR2 151179966897747840, HD283654, **THB1, AKARI-IRC-V1J0427028+254222, APJ04270280+2542223, CSI+25-04235, CSI+25-04240, 2E1039, 2E0424.0+2535, EPIC247986526, GCRV55076, GSC01820-00525, HBC36, HIC20777, HIP20777, IRAS04240+2535, IRASF04239+2535, JP115479, JP115480, 2MASSJ04270280+2542223, MHA259-11, SSTtau042702.8+254222, SV*SVS1077, TIC268016868, TYC1820-1418-1, UBV4281, UCAC240811057, V*DFTauA, V*DFTauB, V*DFTau, WDSJ04271+2542AB, WISEJ042702.79+254222.2, WISEJ042702.80+254222.2, [LLQ2015]TMO29, AAVSO0420+25A, GaiaDR3151179966897747840, GaiaDR2151179966897747840

OBJECT name(s) in headers

V* DF Tau

PI name(s) in headers

Rajeev Manick

Project/Run name(s) in headers

22BF04

Spectrum

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

../../../_images/spec_plot_V_DF_TAU_spirou_offline_udem.png

Spectrum Information

DPRTYPES

OBJ_DARK

Total number raw files

2

First raw files

2022-12-30 11:58:53.065

Last raw files

2023-04-01 06:06:59.307

Total number PP files

1

Number PP files passed QC

1

Number PP files failed QC

0

First pp file [Mid exposure]

2022-12-30 11:58:53.065

Last pp file [Mid exposure]

2022-12-30 11:58:53.065

Last processed [pp]

2025-07-26 18:30:37.759

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]

2022-12-30 11:58:53.065

Last ext file [Mid exposure]

2022-12-30 11:58:53.065

Last processed [ext]

2025-07-26 21:20:22.365

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]

2022-12-30 11:58:53.065

Last tcorr file [Mid exposure]

2022-12-30 11:58:53.065

Last processed [tcorr]

2025-07-27 09:32:48.990

Version [tcorr]

0.7.293

Median SNR Y

37.37 \(\pm\) 0.00

Median SNR H

86.63 \(\pm\) 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_V_DF_TAU_spirou_offline_udem_file_list.txt

2025-08-26 17:30:00.028

Extracted 1D spectra

ext1d_V_DF_TAU_spirou_offline_udem_file_list.txt

2025-08-26 17:30:00.124

Telluric corrected 2D spectra

tcorr2d_V_DF_TAU_spirou_offline_udem_file_list.txt

2025-08-26 17:30:00.215

Telluric corrected 1D spectra

tcorr1d_V_DF_TAU_spirou_offline_udem_file_list.txt

2025-08-26 17:30:00.293

Extracted 2D header file

ext2d_header_V_DF_TAU_spirou_offline_udem_file.csv

2025-08-26 17:29:59.868

LBL

No LBL reduction found

CCF

This section presents the APERO CCF results for this object.

../../../_images/ccf_plot_V_DF_TAU_spirou_offline_udem.png

CCF stats

Mask used

GL846_neg.fits

CCF systemic velocity

16357.77 \(\pm\) 0.00 m/s

CCF FWHM

31847.55 \(\pm\) 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]

2022-12-30 11:58:53.065

Last ccf file [Mid exposure]

2022-12-30 11:58:53.065

Last processed [ccf]

2025-07-27 10:53:55.518

Version [ccf]

0.7.293

Request

CCF files

CCF Downloads

File URL

Uploaded

CCF Table

ccf_V_DF_TAU_spirou_offline_udem_file_list.txt

2025-08-26 17:30:02.328

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

2022-12-30

2022-12-30 11:58:53.065

2022-12-30 11:58:53.065

1

1

-9999.900

1.602

100.295

100.295

37.372

86.627

OBJ_DARK

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_V_DF_TAU_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_V_DF_TAU_spirou_offline_udem.png

Maximum saturation level measured at time of extraction

Measured effective readout noise before extraction

../../../_images/debug_effron_plot_V_DF_TAU_spirou_offline_udem.png

Measured effective readout noise before extraction

APERO Processing Debug Plot

../../../_images/debug_version_plot_V_DF_TAU_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_V_DF_TAU_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.