Exposure
ID
GRAVI.2025-05-28T08:22:37.271_1
Header ID
GRAVI.2025-05-28T08:22:37.271
Date updated
2025-05-28 08:36:17 UTC+0000
Release date
2025-05-28 08:22:37 UTC+0000
UTC Start
2025-05-28 08:22:37.271
UTC End
2025-05-28 08:29:17.271
MJD Start
60823.34904249
MJD End
60823.35367211963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.0033145
Ambient temperature (°C)
13.53
Seeing (arcsec)
0.86
Observation
ID
61046
Category
calibrator
Program ID
113.26BP.001
Program Title
HIGH-PRECISION MASSES AND DISTANCES OF SPECTROSCOPIC BINARIES WITH INTERFEROMETRY - PART IV
Program Type
Normal
PI / COI
GALLENNE / PIETRZYNSKI / KERVELLA / MÉRAND / GIEREN / GRACZYK
Target
ID
45407
Name
HD_174718
RA
282.948495
DEC
4.69995
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
A0 G1 J2 K0
Projected baselines
Baseline Length start Length end Angle start Angle end
A0-G1 79.1760 77.9430 114.3000 114.6000
A0-J2 121.8760 120.5250 91.1000 90.9000
A0-K0 126.7140 126.1480 71.8710 71.6410
G1-J2 58.2230 58.2260 58.6000 58.5000
G1-K0 86.7030 87.1260 33.8250 34.0940
J2-K0 41.7210 41.7010 358.0280 358.9190
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 113.26BP.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60823.34904249
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD174718
HIERARCH ESO INS SOBJ NAME HD_174718
RA 282.948495
DEC 4.69995
HIERARCH ESO INS SPEC RES HIGH
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 79.176
HIERARCH ESO ISS PBL12 END 77.943
HIERARCH ESO ISS PBLA12 START 114.3
HIERARCH ESO ISS PBLA12 END 114.6
HIERARCH ESO ISS PBL13 START 121.876
HIERARCH ESO ISS PBL13 END 120.525
HIERARCH ESO ISS PBLA13 START 91.1
HIERARCH ESO ISS PBLA13 END 90.9
HIERARCH ESO ISS PBL14 START 126.714
HIERARCH ESO ISS PBL14 END 126.148
HIERARCH ESO ISS PBLA14 START 71.871
HIERARCH ESO ISS PBLA14 END 71.641
HIERARCH ESO ISS PBL23 START 58.223
HIERARCH ESO ISS PBL23 END 58.226
HIERARCH ESO ISS PBLA23 START 58.6
HIERARCH ESO ISS PBLA23 END 58.5
HIERARCH ESO ISS PBL24 START 86.703
HIERARCH ESO ISS PBL24 END 87.126
HIERARCH ESO ISS PBLA24 START 33.825
HIERARCH ESO ISS PBLA24 END 34.094
HIERARCH ESO ISS PBL34 START 41.721
HIERARCH ESO ISS PBL34 END 41.701
HIERARCH ESO ISS PBLA34 START 358.028
HIERARCH ESO ISS PBLA34 END 358.919
HIERARCH ESO ISS AMBI TAU0 START 0.003471
HIERARCH ESO ISS AMBI TAU0 END 0.003158
HIERARCH ESO ISS AMBI TEMP 13.53
HIERARCH ESO ISS AMBI FWHM START 0.84
HIERARCH ESO ISS AMBI FWHM END 0.88