Exposure
ID
GRAVI.2025-06-09T04:26:32.963_1
Header ID
GRAVI.2025-06-09T04:26:32.963
Date updated
2025-06-09 04:40:38 UTC+0000
Release date
2025-06-09 04:26:32 UTC+0000
UTC Start
2025-06-09 04:26:32.963
UTC End
2025-06-09 04:29:12.963
MJD Start
60835.18510374
MJD End
60835.18695559185
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
67845
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
50445
Name
HD54631
RA
257.201095
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 54.0180 53.9520 25.7000 26.1000
U1-U3 98.5390 98.4040 32.2000 32.5000
U1-U4 129.0200 128.8810 59.6110 60.0910
U2-U3 45.2730 45.2080 39.9000 40.3000
U2-U4 89.4250 89.4150 79.3070 79.8210
U3-U4 61.5960 61.6830 107.1470 107.6380
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 60835.18510374
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 154631
HIERARCH ESO INS SOBJ NAME HD54631
RA 257.201095
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 54.018
HIERARCH ESO ISS PBL12 END 53.952
HIERARCH ESO ISS PBLA12 START 25.7
HIERARCH ESO ISS PBLA12 END 26.1
HIERARCH ESO ISS PBL13 START 98.539
HIERARCH ESO ISS PBL13 END 98.404
HIERARCH ESO ISS PBLA13 START 32.2
HIERARCH ESO ISS PBLA13 END 32.5
HIERARCH ESO ISS PBL14 START 129.02
HIERARCH ESO ISS PBL14 END 128.881
HIERARCH ESO ISS PBLA14 START 59.611
HIERARCH ESO ISS PBLA14 END 60.091
HIERARCH ESO ISS PBL23 START 45.273
HIERARCH ESO ISS PBL23 END 45.208
HIERARCH ESO ISS PBLA23 START 39.9
HIERARCH ESO ISS PBLA23 END 40.3
HIERARCH ESO ISS PBL24 START 89.425
HIERARCH ESO ISS PBL24 END 89.415
HIERARCH ESO ISS PBLA24 START 79.307
HIERARCH ESO ISS PBLA24 END 79.821
HIERARCH ESO ISS PBL34 START 61.596
HIERARCH ESO ISS PBL34 END 61.683
HIERARCH ESO ISS PBLA34 START 107.147
HIERARCH ESO ISS PBLA34 END 107.638
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