LKCA4 (spirou_offline_udem)

This page was last modified: 2026-02-12 20:51:10.682349 (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=LKCA4

Target Information

RA

64.11714603 [deg] (Gaia DR2)

Dec

28.1264807 [deg] (Gaia DR2)

Finder chart

[FINDER CHART]

Teff

3706.0 [K] (2020AJ….160..120J)

Spectral Type

K7:Ve (1986AJ…..91..575H)

Proper Motion (RA)

6.852393051 [mas/yr] (Gaia DR2)

Proper Motion (Dec)

-25.90451978 [mas/yr] (Gaia DR2)

Parallax

7.701786825 [mas/yr] (Gaia DR2)

Radial Velocity

16.36 [mas/yr] (2019AJ….157..196K)

Aliases

** KSA 7A, 2MASS J04162810+2807358, ASAS J041628+2807.6, ATO J064.1171+28.1264, EM* LkCa 4, EM* StHA 25, GBS-VLA J041628.11+280735.4, Gaia DR2 164666022471759232, HBC 370, JH 165, Kim 3-65, NSVS 6759899, SSTtau 041628.1+280735, TIC 58108662, UCAC2 41665671, V* V1068 Tau, WDS J04165+2808A, WISE J041628.11+280735.5, WISEA J041628.11+280735.4, [DCO2008] T-Tau0-01262, ** KSA 7A, EM* LkCa 4, EM* StHA 25, LKCA4, LkCa4, NSVS 6759899, UCAC2 41665671, **KSA7A, 2MASSJ04162810+2807358, ASASJ041628+2807.6, ATOJ064.1171+28.1264, EM*LkCa4, EM*StHA25, GBS-VLAJ041628.11+280735.4, GaiaDR2164666022471759232, HBC370, JH165, Kim3-65, NSVS6759899, SSTtau041628.1+280735, TIC58108662, UCAC241665671, V*V1068Tau, WDSJ04165+2808A, WISEJ041628.11+280735.5, WISEAJ041628.11+280735.4, [DCO2008]T-Tau0-01262, **KSA7A, EM*LkCa4, EM*StHA25, LKCA4, LkCa4, NSVS6759899, UCAC241665671

OBJECT name(s) in headers

LkCa4

PI name(s) in headers

Jean-Francois Donati, Claire Moutou

Project/Run name(s) in headers

21BP40, 18BD50

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_LKCA4_spirou_offline_udem.png

CCF stats

Mask used

GL846_neg.fits

CCF systemic velocity

16640.90 \(\pm\) 1744.02 m/s

CCF FWHM

39278.52 \(\pm\) 1859.05 m/s

Number of CCF files Total

203

Number of CCF passed QC

203

Number CCF files failed QC

0

First ccf file [Mid exposure]

2018-12-20 08:26:06.416

Last ccf file [Mid exposure]

2022-01-27 08:52:37.749

Last processed [ccf]

2025-02-23 21:19:35.094

Version [ccf]

0.7.292

Request

CCF files

CCF Downloads

File URL

Uploaded

CCF Table

ccf_LKCA4_spirou_offline_udem_file_list.txt

2026-02-12 20:51:29.238

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_LKCA4_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_LKCA4_spirou_offline_udem.png

Maximum saturation level measured at time of extraction

Measured effective readout noise before extraction

../../../_images/debug_effron_plot_LKCA4_spirou_offline_udem.png

Measured effective readout noise before extraction

APERO Processing Debug Plot

../../../_images/debug_version_plot_LKCA4_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_LKCA4_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.