Exposure
ID
GRAVI.2025-06-09T04:29:47.971_1
Header ID
GRAVI.2025-06-09T04:29:47.971
Date updated
2025-06-09 04:40:38 UTC+0000
Release date
2025-06-09 04:29:47 UTC+0000
UTC Start
2025-06-09 04:29:47.971
UTC End
2025-06-09 04:32:27.971
MJD Start
60835.18736078
MJD End
60835.189212631856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003817
Ambient temperature (°C)
13.62
Seeing (arcsec)
0.38
Observation
ID
67846
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
50446
Name
HD54631
RA
257.201106
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 53.9430 53.8760 26.1000 26.5000
U1-U3 98.3870 98.2480 32.6000 33.0000
U1-U4 128.8620 128.7130 60.1510 60.6290
U2-U3 45.1990 45.1310 40.3000 40.7000
U2-U4 89.4130 89.3950 79.8860 80.3990
U3-U4 61.6940 61.7750 107.7000 108.1910
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 60835.18736078
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 154631
HIERARCH ESO INS SOBJ NAME HD54631
RA 257.201106
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 53.943
HIERARCH ESO ISS PBL12 END 53.876
HIERARCH ESO ISS PBLA12 START 26.1
HIERARCH ESO ISS PBLA12 END 26.5
HIERARCH ESO ISS PBL13 START 98.387
HIERARCH ESO ISS PBL13 END 98.248
HIERARCH ESO ISS PBLA13 START 32.6
HIERARCH ESO ISS PBLA13 END 33.0
HIERARCH ESO ISS PBL14 START 128.862
HIERARCH ESO ISS PBL14 END 128.713
HIERARCH ESO ISS PBLA14 START 60.151
HIERARCH ESO ISS PBLA14 END 60.629
HIERARCH ESO ISS PBL23 START 45.199
HIERARCH ESO ISS PBL23 END 45.131
HIERARCH ESO ISS PBLA23 START 40.3
HIERARCH ESO ISS PBLA23 END 40.7
HIERARCH ESO ISS PBL24 START 89.413
HIERARCH ESO ISS PBL24 END 89.395
HIERARCH ESO ISS PBLA24 START 79.886
HIERARCH ESO ISS PBLA24 END 80.399
HIERARCH ESO ISS PBL34 START 61.694
HIERARCH ESO ISS PBL34 END 61.775
HIERARCH ESO ISS PBLA34 START 107.7
HIERARCH ESO ISS PBLA34 END 108.191
HIERARCH ESO ISS AMBI TAU0 START 0.003817
HIERARCH ESO ISS AMBI TAU0 END 0.003817
HIERARCH ESO ISS AMBI TEMP 13.62
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.38