Exposure
ID
GRAVI.2025-07-18T03:20:04.527_1
Header ID
GRAVI.2025-07-18T03:20:04.527
Date updated
2025-07-18 03:30:42 UTC+0000
Release date
2025-07-18 03:20:04 UTC+0000
UTC Start
2025-07-18 03:20:04.527
UTC End
2025-07-18 03:22:04.527
MJD Start
60874.13894128
MJD End
60874.140330168884
Exposure time (s)
120.0
Validation level
1
Tau 0: Coherence time (s)
0.003929
Ambient temperature (°C)
13.54
Seeing (arcsec)
0.905
Observation
ID
68844
Category
calibrator
Program ID
113.26EQ.011
Program Title
USING GRAVITY TO STUDY STAR-DISK INTERACTION
Program Type
Monitoring
PI / COI
GINSKI / BOURDAROT / PINILLA / BENISTY / MANARA / RIBAS / LACOUR / NOWAK / VIGAN / WANG / BALMER / MURPHY
Target
ID
51214
Name
hd174536
RA
282.902018
DEC
-17.31035
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
DUAL
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 90.3620 90.4030 113.6000 113.8000
A0-J2 128.3370 128.4740 90.6000 90.8000
A0-K0 126.3790 126.5500 68.7020 68.8980
G1-J2 57.3510 57.4240 52.6000 52.8000
G1-K0 89.2240 89.2790 23.0590 23.3070
J2-K0 48.3940 48.3840 347.3680 347.5880
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26EQ.011
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,DUAL
MJD-OBS 60874.13894128
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME hd174536
HIERARCH ESO INS SOBJ NAME hd174536
RA 282.902018
DEC -17.31035
HIERARCH ESO INS SPEC RES MEDIUM
HIERARCH ESO INS POLA MODE COMBINED
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 135.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 12
HIERARCH ESO ISS PBL12 START 90.362
HIERARCH ESO ISS PBL12 END 90.403
HIERARCH ESO ISS PBLA12 START 113.6
HIERARCH ESO ISS PBLA12 END 113.8
HIERARCH ESO ISS PBL13 START 128.337
HIERARCH ESO ISS PBL13 END 128.474
HIERARCH ESO ISS PBLA13 START 90.6
HIERARCH ESO ISS PBLA13 END 90.8
HIERARCH ESO ISS PBL14 START 126.379
HIERARCH ESO ISS PBL14 END 126.55
HIERARCH ESO ISS PBLA14 START 68.702
HIERARCH ESO ISS PBLA14 END 68.898
HIERARCH ESO ISS PBL23 START 57.351
HIERARCH ESO ISS PBL23 END 57.424
HIERARCH ESO ISS PBLA23 START 52.6
HIERARCH ESO ISS PBLA23 END 52.8
HIERARCH ESO ISS PBL24 START 89.224
HIERARCH ESO ISS PBL24 END 89.279
HIERARCH ESO ISS PBLA24 START 23.059
HIERARCH ESO ISS PBLA24 END 23.307
HIERARCH ESO ISS PBL34 START 48.394
HIERARCH ESO ISS PBL34 END 48.384
HIERARCH ESO ISS PBLA34 START 347.368
HIERARCH ESO ISS PBLA34 END 347.588
HIERARCH ESO ISS AMBI TAU0 START 0.004187
HIERARCH ESO ISS AMBI TAU0 END 0.003671
HIERARCH ESO ISS AMBI TEMP 13.54
HIERARCH ESO ISS AMBI FWHM START 0.88
HIERARCH ESO ISS AMBI FWHM END 0.93
HIERARCH ESO FT ROBJ NAME hd174536
HIERARCH ESO FT ROBJ ALPHA 185137.0509
HIERARCH ESO FT ROBJ DELTA -171837.9123