GJ4274 (spirou_offline_udem)

This page was last modified: 2026-02-12 19:59:29.798542 (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=GJ4274

Target Information

RA

335.7805928 [deg] (Gaia EDR3)

Dec

-17.61050757 [deg] (Gaia EDR3)

Finder chart

[FINDER CHART]

Teff

3231.0 [K] (2021A&A…656A.162M)

Spectral Type

M4.5Ve (2015AJ….149..106D)

Proper Motion (RA)

308.7117808 [mas/yr] (Gaia EDR3)

Proper Motion (Dec)

-718.3872158 [mas/yr] (Gaia EDR3)

Parallax

138.2280013 [mas/yr] (Gaia EDR3)

Radial Velocity

-2.1 [mas/yr] (2017AJ….153…75K)

Aliases

1RXS J222305.6-173624, 2MASS J22230696-1736250, 8pc 134.40, GJ 4274, Gaia DR2 2595284016771502080, Gaia EDR3 2595284016771502080, Karmn J22231-176, L 788-34, LEHPM 4643, LFT 1712, LHS 3799, LP 820-12, LTT 9001, NLTT 53683, PLX 5413.01, PM 22204-1751, PM J22231-1736, RAVE J222307.0-173625, UCAC4 362-201027, USNO 573, WISEA J222307.22-173633.9, [GKL99] 422, [RHG95] 3517, GJ 4274, GJ4274, L 788-34, LHS 3799, LP 820-12, LTT 9001, [RHG95] 3517, 1RXSJ222305.6-173624, 2MASSJ22230696-1736250, 8pc134.40, GJ4274, GaiaDR22595284016771502080, GaiaEDR32595284016771502080, KarmnJ22231-176, L788-34, LEHPM4643, LFT1712, LHS3799, LP820-12, LTT9001, NLTT53683, PLX5413.01, PM22204-1751, PMJ22231-1736, RAVEJ222307.0-173625, UCAC4362-201027, USNO573, WISEAJ222307.22-173633.9, [GKL99]422, [RHG95]3517, GJ4274, GJ4274, L788-34, LHS3799, LP820-12, LTT9001, [RHG95]3517

OBJECT name(s) in headers

GJ 4274, GJ4274

PI name(s) in headers

Etienne Artigau, Andres Carmona, Jean-Francois Donati,

Project/Run name(s) in headers

25BC08, 25AF23, 24BC12, 20AP40, 22AP40, 23AP45, 23BP45, 24AP45

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_GJ4274_spirou_offline_udem.png

CCF stats

Mask used

GL699_neg.fits

CCF systemic velocity

-1316.26 \(\pm\) 12.53 m/s

CCF FWHM

5808.83 \(\pm\) 40.52 m/s

Number of CCF files Total

551

Number of CCF passed QC

551

Number CCF files failed QC

0

First ccf file [Mid exposure]

2020-07-02 12:43:24.840

Last ccf file [Mid exposure]

2025-11-05 05:30:12.023

Last processed [ccf]

2026-01-07 12:16:40.771

Version [ccf]

0.7.292,0.7.295,0.7.293

Request

CCF files

CCF Downloads

File URL

Uploaded

CCF Table

ccf_GJ4274_spirou_offline_udem_file_list.txt

2026-02-12 20:00:31.846

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_GJ4274_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_GJ4274_spirou_offline_udem.png

Maximum saturation level measured at time of extraction

Measured effective readout noise before extraction

../../../_images/debug_effron_plot_GJ4274_spirou_offline_udem.png

Measured effective readout noise before extraction

APERO Processing Debug Plot

../../../_images/debug_version_plot_GJ4274_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_GJ4274_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.