HD4271B (spirou_offline_udem)

This page was last modified: 2026-02-12 20:46:37.014867 (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=HD4271B

Target Information

RA

11.30768857 [deg] (Gaia DR2)

Dec

0.2639572648 [deg] (Gaia DR2)

Finder chart

[FINDER CHART]

Teff

3452.0 [K] (2020AJ….160..120J)

Spectral Type

M3.5V (2015A&A…577A.128A)

Proper Motion (RA)

265.8826161 [mas/yr] (Gaia DR2)

Proper Motion (Dec)

-47.63369434 [mas/yr] (Gaia DR2)

Parallax

26.27665077 [mas/yr] (Gaia DR2)

Radial Velocity

16.0 [mas/yr] (2014AJ….147…20N)

Aliases

** LDS 836B, 2MASS J00451358+0015509, BD-00 109B, CCDM J00452+0015B, CSI-00 109 2, G 70-8, GEN# +1.00004271B, Gaia DR2 2549050931124387456, HD 4271B, IDS 00401-0018 B, Karmn J00452+002AB, LP 586-8, LSPM J0045+0015N, LTT 418, NLTT 2478, TIC 257558325, UBV 609, USNO-B1.0 0902-00008346, WDS J00452+0015B, WISEA J004513.75+001550.3, ** LDS 836B, BD-00 109B, CSI-00 109 2, G 70-8, HD 4271B, HD4271B, HD_4271B, LTT 418, NLTT 2478, UBV 609, **LDS836B, 2MASSJ00451358+0015509, BD-00109B, CCDMJ00452+0015B, CSI-001092, G70-8, GEN#+1.00004271B, GaiaDR22549050931124387456, HD4271B, IDS00401-0018B, KarmnJ00452+002AB, LP586-8, LSPMJ0045+0015N, LTT418, NLTT2478, TIC257558325, UBV609, USNO-B1.00902-00008346, WDSJ00452+0015B, WISEAJ004513.75+001550.3, **LDS836B, BD-00109B, CSI-001092, G70-8, HD4271B, HD4271B, HD4271B, LTT418, NLTT2478, UBV609

OBJECT name(s) in headers

HD 4271B

PI name(s) in headers

Farbod Jahandar

Project/Run name(s) in headers

20BC30

Spectrum

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

LBL

No LBL reduction found

CCF

This section presents the APERO CCF results for this object.

../../../_images/ccf_plot_HD4271B_spirou_offline_udem.png

CCF stats

Mask used

GL699_neg.fits

CCF systemic velocity

-3625.29 \(\pm\) 23.81 m/s

CCF FWHM

5287.48 \(\pm\) 34.80 m/s

Number of CCF files Total

4

Number of CCF passed QC

4

Number CCF files failed QC

0

First ccf file [Mid exposure]

2020-07-30 14:07:24.408

Last ccf file [Mid exposure]

2020-07-30 14:32:20.805

Last processed [ccf]

2025-02-23 19:35:15.535

Version [ccf]

0.7.292

Request

CCF files

CCF Downloads

File URL

Uploaded

CCF Table

ccf_HD4271B_spirou_offline_udem_file_list.txt

2026-02-12 20:46:39.567

Time series

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

Debug

This section has various debug plots from APERO products

Telluric map

../../../_images/debug_tcorr_map_plot_HD4271B_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_HD4271B_spirou_offline_udem.png

Maximum saturation level measured at time of extraction

Measured effective readout noise before extraction

../../../_images/debug_effron_plot_HD4271B_spirou_offline_udem.png

Measured effective readout noise before extraction

APERO Processing Debug Plot

../../../_images/debug_version_plot_HD4271B_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_HD4271B_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.