Exposure
ID
GRAVI.2025-08-11T02:56:51.588_1
Header ID
GRAVI.2025-08-11T02:56:51.588
Date updated
2025-08-11 03:10:36 UTC+0000
Release date
2025-08-11 02:56:51 UTC+0000
UTC Start
2025-08-11 02:56:51.588
UTC End
2025-08-11 02:58:27.588
MJD Start
60898.12281931
MJD End
60898.12393042111
Exposure time (s)
96.0
Validation level
1
Tau 0: Coherence time (s)
0.002673
Ambient temperature (°C)
14.43
Seeing (arcsec)
0.69
Observation
ID
69853
Category
calibrator
Program ID
114.28MC.001
Program Title
UNVEILING HIDDEN PROTOPLANETS: DIRECT EXTINCTION MEASUREMENT IN THE PLANET-FORMED GAP OF AS209
Program Type
ToO
PI / COI
CUGNO / BOURDAROT / BENISTY / TEAGUE / FACCHINI / GIRARD / BERGIN / BAE / HUANG / MEYER
Target
ID
51854
Name
HD174536A
RA
282.90612
DEC
-17.31034
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5270 56.5370 30.0000 30.2000
U1-U3 102.4290 102.4330 36.2000 36.3000
U1-U4 129.6870 129.5730 63.6370 63.7980
U2-U3 46.6340 46.6260 43.7000 43.9000
U2-U4 88.3950 88.2500 84.4090 84.5860
U3-U4 61.1600 61.0360 114.2420 114.4800
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 114.28MC.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60898.12281931
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME hd174536
HIERARCH ESO INS SOBJ NAME HD174536A
RA 282.90612
DEC -17.31034
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 153.0
HIERARCH ESO DET2 SEQ1 DIT 0.3
HIERARCH ESO DET2 NDIT 320
HIERARCH ESO ISS PBL12 START 56.527
HIERARCH ESO ISS PBL12 END 56.537
HIERARCH ESO ISS PBLA12 START 30.0
HIERARCH ESO ISS PBLA12 END 30.2
HIERARCH ESO ISS PBL13 START 102.429
HIERARCH ESO ISS PBL13 END 102.433
HIERARCH ESO ISS PBLA13 START 36.2
HIERARCH ESO ISS PBLA13 END 36.3
HIERARCH ESO ISS PBL14 START 129.687
HIERARCH ESO ISS PBL14 END 129.573
HIERARCH ESO ISS PBLA14 START 63.637
HIERARCH ESO ISS PBLA14 END 63.798
HIERARCH ESO ISS PBL23 START 46.634
HIERARCH ESO ISS PBL23 END 46.626
HIERARCH ESO ISS PBLA23 START 43.7
HIERARCH ESO ISS PBLA23 END 43.9
HIERARCH ESO ISS PBL24 START 88.395
HIERARCH ESO ISS PBL24 END 88.25
HIERARCH ESO ISS PBLA24 START 84.409
HIERARCH ESO ISS PBLA24 END 84.586
HIERARCH ESO ISS PBL34 START 61.16
HIERARCH ESO ISS PBL34 END 61.036
HIERARCH ESO ISS PBLA34 START 114.242
HIERARCH ESO ISS PBLA34 END 114.48
HIERARCH ESO ISS AMBI TAU0 START 0.003078
HIERARCH ESO ISS AMBI TAU0 END 0.002268
HIERARCH ESO ISS AMBI TEMP 14.43
HIERARCH ESO ISS AMBI FWHM START 0.61
HIERARCH ESO ISS AMBI FWHM END 0.77
HIERARCH ESO FT ROBJ NAME HD174536B
HIERARCH ESO FT ROBJ ALPHA 185137.0509
HIERARCH ESO FT ROBJ DELTA -171837.9123