Exposure
ID
GRAVI.2025-06-09T04:33:02.980_1
Header ID
GRAVI.2025-06-09T04:33:02.980
Date updated
2025-06-09 04:45:38 UTC+0000
Release date
2025-06-09 04:33:02 UTC+0000
UTC Start
2025-06-09 04:33:02.980
UTC End
2025-06-09 04:35:42.980
MJD Start
60835.18961782
MJD End
60835.19146967185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003817
Ambient temperature (°C)
13.61
Seeing (arcsec)
0.38
Observation
ID
67847
Category
calibrator
Program ID
115.28E1.001
Program Title
A CLOSER LOOK AT THE ENVIRONMENTS OF LATE-TYPE CARBON-RICH WOLF-RAYET STARS
Program Type
Normal
PI / COI
DESHMUKH / SANA / SANDER / SHENAR / MÉRAND / FROST / LEFEVER
Target
ID
50447
Name
HD54631
RA
257.201108
DEC
-45.15399
Instrument
Interferometer
VLTI
Instrument
GRAVITY
Instrument mode
HIGH-COMBINED
Instrument sub-mode
SINGLE
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 53.8670 53.7970 26.5000 26.9000
U1-U3 98.2300 98.0860 33.0000 33.4000
U1-U4 128.6940 128.5350 60.6890 61.1660
U2-U3 45.1230 45.0530 40.8000 41.2000
U2-U4 89.3920 89.3660 80.4640 80.9770
U3-U4 61.7850 61.8610 108.2530 108.7450
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28E1.001
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60835.18961782
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 154631
HIERARCH ESO INS SOBJ NAME HD54631
RA 257.201108
DEC -45.15399
HIERARCH ESO INS SPEC RES HIGH
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 178.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 16
HIERARCH ESO ISS PBL12 START 53.867
HIERARCH ESO ISS PBL12 END 53.797
HIERARCH ESO ISS PBLA12 START 26.5
HIERARCH ESO ISS PBLA12 END 26.9
HIERARCH ESO ISS PBL13 START 98.23
HIERARCH ESO ISS PBL13 END 98.086
HIERARCH ESO ISS PBLA13 START 33.0
HIERARCH ESO ISS PBLA13 END 33.4
HIERARCH ESO ISS PBL14 START 128.694
HIERARCH ESO ISS PBL14 END 128.535
HIERARCH ESO ISS PBLA14 START 60.689
HIERARCH ESO ISS PBLA14 END 61.166
HIERARCH ESO ISS PBL23 START 45.123
HIERARCH ESO ISS PBL23 END 45.053
HIERARCH ESO ISS PBLA23 START 40.8
HIERARCH ESO ISS PBLA23 END 41.2
HIERARCH ESO ISS PBL24 START 89.392
HIERARCH ESO ISS PBL24 END 89.366
HIERARCH ESO ISS PBLA24 START 80.464
HIERARCH ESO ISS PBLA24 END 80.977
HIERARCH ESO ISS PBL34 START 61.785
HIERARCH ESO ISS PBL34 END 61.861
HIERARCH ESO ISS PBLA34 START 108.253
HIERARCH ESO ISS PBLA34 END 108.745
HIERARCH ESO ISS AMBI TAU0 START 0.003817
HIERARCH ESO ISS AMBI TAU0 END 0.003817
HIERARCH ESO ISS AMBI TEMP 13.61
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.38