Exposure
ID
GRAVI.2025-06-21T23:40:45.318_1
Header ID
GRAVI.2025-06-21T23:40:45.318
Date updated
2025-06-21 23:50:50 UTC+0000
Release date
2025-06-21 23:40:45 UTC+0000
UTC Start
2025-06-21 23:40:45.318
UTC End
2025-06-21 23:44:45.318
MJD Start
60847.98663563
MJD End
60847.98941340778
Exposure time (s)
240.0
Validation level
1
Tau 0: Coherence time (s)
0.0017515
Ambient temperature (°C)
12.93
Seeing (arcsec)
0.8899999999999999
Observation
ID
68187
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
50687
Name
HD_120802
RA
207.800217
DEC
27.12884
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
K0 G2 D0 J3
Projected baselines
Baseline Length start Length end Angle start Angle end
K0-G2 67.2650 67.4550 276.9000 276.4000
K0-D0 86.1960 86.8780 263.1000 262.7000
K0-J3 45.2920 44.9210 318.8740 318.9340
G2-D0 26.3300 26.6850 225.6000 225.8000
G2-J3 45.2220 45.8420 54.8770 54.9430
D0-J3 71.3330 72.3130 51.4490 51.5900
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 60847.98663563
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD120802
HIERARCH ESO INS SOBJ NAME HD_120802
RA 207.800217
DEC 27.12884
HIERARCH ESO INS SPEC RES HIGH
HIERARCH ESO INS POLA MODE COMBINED
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 K0
HIERARCH ESO ISS CONF STATION2 G2
HIERARCH ESO ISS CONF STATION3 D0
HIERARCH ESO ISS CONF STATION4 J3
EXPTIME 256.0
HIERARCH ESO DET2 SEQ1 DIT 30.0
HIERARCH ESO DET2 NDIT 8
HIERARCH ESO ISS PBL12 START 67.265
HIERARCH ESO ISS PBL12 END 67.455
HIERARCH ESO ISS PBLA12 START 276.9
HIERARCH ESO ISS PBLA12 END 276.4
HIERARCH ESO ISS PBL13 START 86.196
HIERARCH ESO ISS PBL13 END 86.878
HIERARCH ESO ISS PBLA13 START 263.1
HIERARCH ESO ISS PBLA13 END 262.7
HIERARCH ESO ISS PBL14 START 45.292
HIERARCH ESO ISS PBL14 END 44.921
HIERARCH ESO ISS PBLA14 START 318.874
HIERARCH ESO ISS PBLA14 END 318.934
HIERARCH ESO ISS PBL23 START 26.33
HIERARCH ESO ISS PBL23 END 26.685
HIERARCH ESO ISS PBLA23 START 225.6
HIERARCH ESO ISS PBLA23 END 225.8
HIERARCH ESO ISS PBL24 START 45.222
HIERARCH ESO ISS PBL24 END 45.842
HIERARCH ESO ISS PBLA24 START 54.877
HIERARCH ESO ISS PBLA24 END 54.943
HIERARCH ESO ISS PBL34 START 71.333
HIERARCH ESO ISS PBL34 END 72.313
HIERARCH ESO ISS PBLA34 START 51.449
HIERARCH ESO ISS PBLA34 END 51.59
HIERARCH ESO ISS AMBI TAU0 START 0.001948
HIERARCH ESO ISS AMBI TAU0 END 0.001555
HIERARCH ESO ISS AMBI TEMP 12.93
HIERARCH ESO ISS AMBI FWHM START 0.82
HIERARCH ESO ISS AMBI FWHM END 0.96