Exposure
ID
GRAVI.2025-03-03T08:11:13.229_1
Header ID
GRAVI.2025-03-03T08:11:13.229
Date updated
2025-03-03 08:20:48 UTC+0000
Release date
2025-03-03 08:11:13 UTC+0000
UTC Start
2025-03-03 08:11:13.229
UTC End
2025-03-03 08:13:13.229
MJD Start
60737.34112534
MJD End
60737.34251422888
Exposure time (s)
120.0
Validation level
1
Tau 0: Coherence time (s)
0.004914
Ambient temperature (°C)
13.13
Seeing (arcsec)
0.74
Observation
ID
64896
Category
calibrator
Program ID
114.278L.001
Program Title
CONJUNCTIONS OF ALPHA CENTAURI: GRAVITY ASTROMETRY OF THE B-S4 EVENT AND CRIRES CHARACTERIZATION OF SOURCE S5
Program Type
Normal
PI / COI
KERVELLA / MÉRAND / LACOUR / FORVEILLE / ARENOU / THEVENIN / BOURDAROT / BRANDNER / STRAUBMEIER / GARCIA / WOILLEZ / EISENHAUER / PAUMARD / ROUSSELET-PERRAUT / PERRIN
Target
ID
48328
Name
WDSJ15479-6527B
RA
236.965643
DEC
-65.44268
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-SPLIT
Instrument sub-mode
DUAL
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 81.1170 81.2810 89.2000 89.7000
A0-J2 126.6310 126.7300 70.3000 70.8000
A0-K0 127.7540 127.7270 54.3180 54.8260
G1-J2 56.4380 56.3980 42.5000 42.9000
G1-K0 76.8410 76.7830 17.1560 17.5330
J2-K0 35.3260 35.3860 334.1080 334.4240
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.278L.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60737.34112534
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME WDSJ15479-6527A
HIERARCH ESO INS SOBJ NAME WDSJ15479-6527B
RA 236.965643
DEC -65.44268
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 A0
HIERARCH ESO ISS CONF STATION2 G1
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 K0
EXPTIME 137.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 81.117
HIERARCH ESO ISS PBL12 END 81.281
HIERARCH ESO ISS PBLA12 START 89.2
HIERARCH ESO ISS PBLA12 END 89.7
HIERARCH ESO ISS PBL13 START 126.631
HIERARCH ESO ISS PBL13 END 126.73
HIERARCH ESO ISS PBLA13 START 70.3
HIERARCH ESO ISS PBLA13 END 70.8
HIERARCH ESO ISS PBL14 START 127.754
HIERARCH ESO ISS PBL14 END 127.727
HIERARCH ESO ISS PBLA14 START 54.318
HIERARCH ESO ISS PBLA14 END 54.826
HIERARCH ESO ISS PBL23 START 56.438
HIERARCH ESO ISS PBL23 END 56.398
HIERARCH ESO ISS PBLA23 START 42.5
HIERARCH ESO ISS PBLA23 END 42.9
HIERARCH ESO ISS PBL24 START 76.841
HIERARCH ESO ISS PBL24 END 76.783
HIERARCH ESO ISS PBLA24 START 17.156
HIERARCH ESO ISS PBLA24 END 17.533
HIERARCH ESO ISS PBL34 START 35.326
HIERARCH ESO ISS PBL34 END 35.386
HIERARCH ESO ISS PBLA34 START 334.108
HIERARCH ESO ISS PBLA34 END 334.424
HIERARCH ESO ISS AMBI TAU0 START 0.004756
HIERARCH ESO ISS AMBI TAU0 END 0.005072
HIERARCH ESO ISS AMBI TEMP 13.13
HIERARCH ESO ISS AMBI FWHM START 0.79
HIERARCH ESO ISS AMBI FWHM END 0.69
HIERARCH ESO FT ROBJ NAME WDSJ15479-6527A
HIERARCH ESO FT ROBJ ALPHA 154753.056
HIERARCH ESO FT ROBJ DELTA -652632.308