Exposure
ID
GRAVI.2023-08-01T03:07:47.709_1
Header ID
GRAVI.2023-08-01T03:07:47.709
Date updated
2023-08-01 03:20:15 UTC+0000
Release date
2023-08-01 03:07:47 UTC+0000
UTC Start
2023-08-01 03:07:47.709
UTC End
2023-08-01 03:12:07.709
MJD Start
60157.1304133
MJD End
60157.13342255926
Exposure time (s)
260.0
Validation level
1
Tau 0: Coherence time (s)
0.0023420000000000003
Ambient temperature (°C)
18.75
Seeing (arcsec)
1.14
Observation
ID
56495
Category
calibrator
Program ID
109.23HT.003
Program Title
CONSTRAINING THE COSMIC DANCE OF MASSIVE STARS IN TRIPLE SYSTEMS
Program Type
Normal
PI / COI
SANA/ FROST/ TOONEN/ BORDIER/ LE BOUQUIN/ MAHY/ SHENAR
Target
ID
41870
Name
HD_164357
RA
270.325739
DEC
-15.72978
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
MEDIUM-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 56.5540 56.5590 31.5000 31.8000
U1-U3 102.4180 102.3890 37.5000 37.8000
U1-U4 128.6920 128.3190 64.6240 64.8640
U2-U3 46.5660 46.5250 44.9000 45.2000
U2-U4 87.0160 86.5950 85.4370 85.7330
U3-U4 59.8230 59.4960 115.8090 116.2800
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 109.23HT.003
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60157.1304133
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD_164357
HIERARCH ESO INS SOBJ NAME HD_164357
RA 270.325739
DEC -15.72978
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 278.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 26
HIERARCH ESO ISS PBL12 START 56.554
HIERARCH ESO ISS PBL12 END 56.559
HIERARCH ESO ISS PBLA12 START 31.5
HIERARCH ESO ISS PBLA12 END 31.8
HIERARCH ESO ISS PBL13 START 102.418
HIERARCH ESO ISS PBL13 END 102.389
HIERARCH ESO ISS PBLA13 START 37.5
HIERARCH ESO ISS PBLA13 END 37.8
HIERARCH ESO ISS PBL14 START 128.692
HIERARCH ESO ISS PBL14 END 128.319
HIERARCH ESO ISS PBLA14 START 64.624
HIERARCH ESO ISS PBLA14 END 64.864
HIERARCH ESO ISS PBL23 START 46.566
HIERARCH ESO ISS PBL23 END 46.525
HIERARCH ESO ISS PBLA23 START 44.9
HIERARCH ESO ISS PBLA23 END 45.2
HIERARCH ESO ISS PBL24 START 87.016
HIERARCH ESO ISS PBL24 END 86.595
HIERARCH ESO ISS PBLA24 START 85.437
HIERARCH ESO ISS PBLA24 END 85.733
HIERARCH ESO ISS PBL34 START 59.823
HIERARCH ESO ISS PBL34 END 59.496
HIERARCH ESO ISS PBLA34 START 115.809
HIERARCH ESO ISS PBLA34 END 116.28
HIERARCH ESO ISS AMBI TAU0 START 0.002337
HIERARCH ESO ISS AMBI TAU0 END 0.002347
HIERARCH ESO ISS AMBI TEMP 18.75
HIERARCH ESO ISS AMBI FWHM START 1.14
HIERARCH ESO ISS AMBI FWHM END 1.14