Exposure
ID
GRAVI.2025-06-09T05:38:51.147_1
Header ID
GRAVI.2025-06-09T05:38:51.147
Date updated
2025-06-09 05:56:12 UTC+0000
Release date
2025-06-09 05:38:51 UTC+0000
UTC Start
2025-06-09 05:38:51.147
UTC End
2025-06-09 05:45:31.147
MJD Start
60835.2353142
MJD End
60835.23994382963
Exposure time (s)
400.0
Validation level
1
Tau 0: Coherence time (s)
0.006034
Ambient temperature (°C)
13.56
Seeing (arcsec)
0.4
Observation
ID
67850
Category
calibrator
Program ID
115.28E1.002
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
50450
Name
HD156291
RA
259.668575
DEC
-40.7734
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 53.4750 53.2430 32.4000 33.2000
U1-U3 96.8530 96.3580 39.2000 39.9000
U1-U4 125.0680 124.2670 68.4450 69.4330
U2-U3 44.1880 43.9290 47.3000 48.1000
U2-U4 87.6380 87.2080 89.4630 90.5930
U3-U4 62.4050 62.3340 117.8560 119.0200
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 115.28E1.002
HIERARCH ESO DPR CATG CALIB
HIERARCH ESO DPR TYPE STD,SINGLE
MJD-OBS 60835.2353142
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 156291
HIERARCH ESO INS SOBJ NAME HD156291
RA 259.668575
DEC -40.7734
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 414.0
HIERARCH ESO DET2 SEQ1 DIT 100.0
HIERARCH ESO DET2 NDIT 4
HIERARCH ESO ISS PBL12 START 53.475
HIERARCH ESO ISS PBL12 END 53.243
HIERARCH ESO ISS PBLA12 START 32.4
HIERARCH ESO ISS PBLA12 END 33.2
HIERARCH ESO ISS PBL13 START 96.853
HIERARCH ESO ISS PBL13 END 96.358
HIERARCH ESO ISS PBLA13 START 39.2
HIERARCH ESO ISS PBLA13 END 39.9
HIERARCH ESO ISS PBL14 START 125.068
HIERARCH ESO ISS PBL14 END 124.267
HIERARCH ESO ISS PBLA14 START 68.445
HIERARCH ESO ISS PBLA14 END 69.433
HIERARCH ESO ISS PBL23 START 44.188
HIERARCH ESO ISS PBL23 END 43.929
HIERARCH ESO ISS PBLA23 START 47.3
HIERARCH ESO ISS PBLA23 END 48.1
HIERARCH ESO ISS PBL24 START 87.638
HIERARCH ESO ISS PBL24 END 87.208
HIERARCH ESO ISS PBLA24 START 89.463
HIERARCH ESO ISS PBLA24 END 90.593
HIERARCH ESO ISS PBL34 START 62.405
HIERARCH ESO ISS PBL34 END 62.334
HIERARCH ESO ISS PBLA34 START 117.856
HIERARCH ESO ISS PBLA34 END 119.02
HIERARCH ESO ISS AMBI TAU0 START 0.005524
HIERARCH ESO ISS AMBI TAU0 END 0.006544
HIERARCH ESO ISS AMBI TEMP 13.56
HIERARCH ESO ISS AMBI FWHM START 0.45
HIERARCH ESO ISS AMBI FWHM END 0.35