Exposure
ID
GRAVI.2025-06-09T04:23:17.955_1
Header ID
GRAVI.2025-06-09T04:23:17.955
Date updated
2025-06-09 04:30:39 UTC+0000
Release date
2025-06-09 04:23:17 UTC+0000
UTC Start
2025-06-09 04:23:17.955
UTC End
2025-06-09 04:25:57.955
MJD Start
60835.1828467
MJD End
60835.18469855186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003817
Ambient temperature (°C)
13.58
Seeing (arcsec)
0.38
Observation
ID
67844
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
50444
Name
HD54631
RA
257.201089
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 54.0890 54.0240 25.3000 25.7000
U1-U3 98.6850 98.5530 31.7000 32.1000
U1-U4 129.1660 129.0340 59.0750 59.5610
U2-U3 45.3430 45.2790 39.4000 39.8000
U2-U4 89.4290 89.4260 78.7320 79.2530
U3-U4 61.4940 61.5870 106.6020 107.0970
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 60835.1828467
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 154631
HIERARCH ESO INS SOBJ NAME HD54631
RA 257.201089
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 54.089
HIERARCH ESO ISS PBL12 END 54.024
HIERARCH ESO ISS PBLA12 START 25.3
HIERARCH ESO ISS PBLA12 END 25.7
HIERARCH ESO ISS PBL13 START 98.685
HIERARCH ESO ISS PBL13 END 98.553
HIERARCH ESO ISS PBLA13 START 31.7
HIERARCH ESO ISS PBLA13 END 32.1
HIERARCH ESO ISS PBL14 START 129.166
HIERARCH ESO ISS PBL14 END 129.034
HIERARCH ESO ISS PBLA14 START 59.075
HIERARCH ESO ISS PBLA14 END 59.561
HIERARCH ESO ISS PBL23 START 45.343
HIERARCH ESO ISS PBL23 END 45.279
HIERARCH ESO ISS PBLA23 START 39.4
HIERARCH ESO ISS PBLA23 END 39.8
HIERARCH ESO ISS PBL24 START 89.429
HIERARCH ESO ISS PBL24 END 89.426
HIERARCH ESO ISS PBLA24 START 78.732
HIERARCH ESO ISS PBLA24 END 79.253
HIERARCH ESO ISS PBL34 START 61.494
HIERARCH ESO ISS PBL34 END 61.587
HIERARCH ESO ISS PBLA34 START 106.602
HIERARCH ESO ISS PBLA34 END 107.097
HIERARCH ESO ISS AMBI TAU0 START 0.003817
HIERARCH ESO ISS AMBI TAU0 END 0.003817
HIERARCH ESO ISS AMBI TEMP 13.58
HIERARCH ESO ISS AMBI FWHM START 0.38
HIERARCH ESO ISS AMBI FWHM END 0.38