Exposure
ID
GRAVI.2025-06-09T04:20:02.947_1
Header ID
GRAVI.2025-06-09T04:20:02.947
Date updated
2025-06-09 04:30:39 UTC+0000
Release date
2025-06-09 04:20:02 UTC+0000
UTC Start
2025-06-09 04:20:02.947
UTC End
2025-06-09 04:22:42.947
MJD Start
60835.18058966
MJD End
60835.18244151185
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.003817
Ambient temperature (°C)
13.55
Seeing (arcsec)
0.41000000000000003
Observation
ID
67843
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
50443
Name
HD54631
RA
257.201082
DEC
-45.154
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 54.1590 54.0960 24.9000 25.2000
U1-U3 98.8280 98.7000 31.3000 31.7000
U1-U4 129.3030 129.1810 58.5310 59.0190
U2-U3 45.4120 45.3500 38.9000 39.3000
U2-U4 89.4240 89.4290 78.1510 78.6730
U3-U4 61.3850 61.4830 106.0510 106.5450
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 60835.18058966
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 154631
HIERARCH ESO INS SOBJ NAME HD54631
RA 257.201082
DEC -45.154
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 54.159
HIERARCH ESO ISS PBL12 END 54.096
HIERARCH ESO ISS PBLA12 START 24.9
HIERARCH ESO ISS PBLA12 END 25.2
HIERARCH ESO ISS PBL13 START 98.828
HIERARCH ESO ISS PBL13 END 98.7
HIERARCH ESO ISS PBLA13 START 31.3
HIERARCH ESO ISS PBLA13 END 31.7
HIERARCH ESO ISS PBL14 START 129.303
HIERARCH ESO ISS PBL14 END 129.181
HIERARCH ESO ISS PBLA14 START 58.531
HIERARCH ESO ISS PBLA14 END 59.019
HIERARCH ESO ISS PBL23 START 45.412
HIERARCH ESO ISS PBL23 END 45.35
HIERARCH ESO ISS PBLA23 START 38.9
HIERARCH ESO ISS PBLA23 END 39.3
HIERARCH ESO ISS PBL24 START 89.424
HIERARCH ESO ISS PBL24 END 89.429
HIERARCH ESO ISS PBLA24 START 78.151
HIERARCH ESO ISS PBLA24 END 78.673
HIERARCH ESO ISS PBL34 START 61.385
HIERARCH ESO ISS PBL34 END 61.483
HIERARCH ESO ISS PBLA34 START 106.051
HIERARCH ESO ISS PBLA34 END 106.545
HIERARCH ESO ISS AMBI TAU0 START 0.003817
HIERARCH ESO ISS AMBI TAU0 END 0.003817
HIERARCH ESO ISS AMBI TEMP 13.55
HIERARCH ESO ISS AMBI FWHM START 0.44
HIERARCH ESO ISS AMBI FWHM END 0.38