Exposure
ID
GRAVI.2025-05-14T06:58:31.661_1
Header ID
GRAVI.2025-05-14T06:58:31.661
Date updated
2025-05-14 07:10:57 UTC+0000
Release date
2025-05-14 06:58:31 UTC+0000
UTC Start
2025-05-14 06:58:31.661
UTC End
2025-05-14 07:01:11.661
MJD Start
60809.29064423
MJD End
60809.29249608186
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.0049085
Ambient temperature (°C)
16.36
Seeing (arcsec)
0.76
Observation
ID
67407
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
50140
Name
HD172927
RA
280.737088
DEC
-1.96245
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 50.6580 50.7760 21.7000 22.0000
U1-U3 91.5350 91.8150 28.7000 29.1000
U1-U4 119.2150 119.7810 59.6340 59.8180
U2-U3 41.7330 41.8920 37.4000 37.7000
U2-U4 85.1880 85.5220 81.0990 81.1590
U3-U4 62.1440 62.2160 108.7670 108.7690
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 60809.29064423
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 172927
HIERARCH ESO INS SOBJ NAME HD172927
RA 280.737088
DEC -1.96245
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 50.658
HIERARCH ESO ISS PBL12 END 50.776
HIERARCH ESO ISS PBLA12 START 21.7
HIERARCH ESO ISS PBLA12 END 22.0
HIERARCH ESO ISS PBL13 START 91.535
HIERARCH ESO ISS PBL13 END 91.815
HIERARCH ESO ISS PBLA13 START 28.7
HIERARCH ESO ISS PBLA13 END 29.1
HIERARCH ESO ISS PBL14 START 119.215
HIERARCH ESO ISS PBL14 END 119.781
HIERARCH ESO ISS PBLA14 START 59.634
HIERARCH ESO ISS PBLA14 END 59.818
HIERARCH ESO ISS PBL23 START 41.733
HIERARCH ESO ISS PBL23 END 41.892
HIERARCH ESO ISS PBLA23 START 37.4
HIERARCH ESO ISS PBLA23 END 37.7
HIERARCH ESO ISS PBL24 START 85.188
HIERARCH ESO ISS PBL24 END 85.522
HIERARCH ESO ISS PBLA24 START 81.099
HIERARCH ESO ISS PBLA24 END 81.159
HIERARCH ESO ISS PBL34 START 62.144
HIERARCH ESO ISS PBL34 END 62.216
HIERARCH ESO ISS PBLA34 START 108.767
HIERARCH ESO ISS PBLA34 END 108.769
HIERARCH ESO ISS AMBI TAU0 START 0.004658
HIERARCH ESO ISS AMBI TAU0 END 0.005159
HIERARCH ESO ISS AMBI TEMP 16.36
HIERARCH ESO ISS AMBI FWHM START 0.83
HIERARCH ESO ISS AMBI FWHM END 0.69