Exposure
ID
GRAVI.2025-03-01T07:13:35.710_1
Header ID
GRAVI.2025-03-01T07:13:35.710
Date updated
2025-03-01 07:25:41 UTC+0000
Release date
2025-03-01 07:13:35 UTC+0000
UTC Start
2025-03-01 07:13:35.710
UTC End
2025-03-01 07:15:35.710
MJD Start
60735.30110776
MJD End
60735.30249664889
Exposure time (s)
120.0
Validation level
1
Tau 0: Coherence time (s)
0.008667500000000002
Ambient temperature (°C)
15.54
Seeing (arcsec)
0.665
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 75.8740 76.0690 73.7000 74.3000
A0-J2 123.2320 123.3620 54.5000 55.1000
A0-K0 127.9360 127.9440 39.4510 39.9720
G1-J2 57.2910 57.2700 28.7000 29.2000
G1-K0 77.9660 77.9450 6.2370 6.6160
J2-K0 33.2540 33.3370 325.0530 325.3630
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 60735.30110776
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 75.874
HIERARCH ESO ISS PBL12 END 76.069
HIERARCH ESO ISS PBLA12 START 73.7
HIERARCH ESO ISS PBLA12 END 74.3
HIERARCH ESO ISS PBL13 START 123.232
HIERARCH ESO ISS PBL13 END 123.362
HIERARCH ESO ISS PBLA13 START 54.5
HIERARCH ESO ISS PBLA13 END 55.1
HIERARCH ESO ISS PBL14 START 127.936
HIERARCH ESO ISS PBL14 END 127.944
HIERARCH ESO ISS PBLA14 START 39.451
HIERARCH ESO ISS PBLA14 END 39.972
HIERARCH ESO ISS PBL23 START 57.291
HIERARCH ESO ISS PBL23 END 57.27
HIERARCH ESO ISS PBLA23 START 28.7
HIERARCH ESO ISS PBLA23 END 29.2
HIERARCH ESO ISS PBL24 START 77.966
HIERARCH ESO ISS PBL24 END 77.945
HIERARCH ESO ISS PBLA24 START 6.237
HIERARCH ESO ISS PBLA24 END 6.616
HIERARCH ESO ISS PBL34 START 33.254
HIERARCH ESO ISS PBL34 END 33.337
HIERARCH ESO ISS PBLA34 START 325.053
HIERARCH ESO ISS PBLA34 END 325.363
HIERARCH ESO ISS AMBI TAU0 START 0.008847
HIERARCH ESO ISS AMBI TAU0 END 0.008488
HIERARCH ESO ISS AMBI TEMP 15.54
HIERARCH ESO ISS AMBI FWHM START 0.68
HIERARCH ESO ISS AMBI FWHM END 0.65
HIERARCH ESO FT ROBJ NAME WDSJ15479-6527A
HIERARCH ESO FT ROBJ ALPHA 154753.056
HIERARCH ESO FT ROBJ DELTA -652632.308