Exposure
ID
GRAVI.2025-08-26T03:56:39.890_1
Header ID
GRAVI.2025-08-26T03:56:39.890
Date updated
2025-08-26 04:10:45 UTC+0000
Release date
2025-08-26 03:56:39 UTC+0000
UTC Start
2025-08-26 03:56:39.890
UTC End
2025-08-26 04:00:39.890
MJD Start
60913.16435058
MJD End
60913.16712835778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.004927
Ambient temperature (°C)
13.9
Seeing (arcsec)
0.81
Observation
ID
70125
Category
calibrator
Program ID
115.28G0.002
Program Title
VLTI SURVEY ON GAIA BINARIES: STELLAR EVOLUTION AND BINARY FORMATION AT LOW/HIGH METALLICITY
Program Type
Normal
PI / COI
LU / KRAUS / GARDNER
Target
ID
52030
Name
HD_184118
RA
293.396505
DEC
-18.43719
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 B5 J2 J6
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-B5 46.7980 46.7430 166.0000 166.6000
A0-J2 113.9630 112.9060 103.4000 103.8000
A0-J6 167.6500 167.3760 34.9950 35.1960
B5-J2 101.3580 100.5210 79.2000 79.4000
B5-J6 201.4720 201.3710 24.8970 25.1700
J2-J6 164.3490 164.2970 354.8550 355.4020
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28G0.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60913.16435058
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 184118
HIERARCH ESO INS SOBJ NAME HD_184118
RA 293.396505
DEC -18.43719
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 B5
HIERARCH ESO ISS CONF STATION3 J2
HIERARCH ESO ISS CONF STATION4 J6
EXPTIME 255.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 46.798
HIERARCH ESO ISS PBL12 END 46.743
HIERARCH ESO ISS PBLA12 START 166.0
HIERARCH ESO ISS PBLA12 END 166.6
HIERARCH ESO ISS PBL13 START 113.963
HIERARCH ESO ISS PBL13 END 112.906
HIERARCH ESO ISS PBLA13 START 103.4
HIERARCH ESO ISS PBLA13 END 103.8
HIERARCH ESO ISS PBL14 START 167.65
HIERARCH ESO ISS PBL14 END 167.376
HIERARCH ESO ISS PBLA14 START 34.995
HIERARCH ESO ISS PBLA14 END 35.196
HIERARCH ESO ISS PBL23 START 101.358
HIERARCH ESO ISS PBL23 END 100.521
HIERARCH ESO ISS PBLA23 START 79.2
HIERARCH ESO ISS PBLA23 END 79.4
HIERARCH ESO ISS PBL24 START 201.472
HIERARCH ESO ISS PBL24 END 201.371
HIERARCH ESO ISS PBLA24 START 24.897
HIERARCH ESO ISS PBLA24 END 25.17
HIERARCH ESO ISS PBL34 START 164.349
HIERARCH ESO ISS PBL34 END 164.297
HIERARCH ESO ISS PBLA34 START 354.855
HIERARCH ESO ISS PBLA34 END 355.402
HIERARCH ESO ISS AMBI TAU0 START 0.00459
HIERARCH ESO ISS AMBI TAU0 END 0.005264
HIERARCH ESO ISS AMBI TEMP 13.9
HIERARCH ESO ISS AMBI FWHM START 0.77
HIERARCH ESO ISS AMBI FWHM END 0.85