Exposure
ID
GRAVI.2025-05-14T07:05:01.678_1
Header ID
GRAVI.2025-05-14T07:05:01.678
Date updated
2025-05-14 07:15:51 UTC+0000
Release date
2025-05-14 07:05:01 UTC+0000
UTC Start
2025-05-14 07:05:01.678
UTC End
2025-05-14 07:07:41.678
MJD Start
60809.29515831
MJD End
60809.297010161856
Exposure time (s)
160.0
Validation level
1
Tau 0: Coherence time (s)
0.004795000000000001
Ambient temperature (°C)
16.3
Seeing (arcsec)
0.825
Observation
ID
67409
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
50142
Name
HD172927
RA
280.737106
DEC
-1.96243
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 50.9220 51.0430 22.5000 22.8000
U1-U3 92.1580 92.4400 29.5000 29.8000
U1-U4 120.4590 121.0020 60.0350 60.2080
U2-U3 42.0870 42.2450 38.0000 38.3000
U2-U4 85.9150 86.2220 81.2300 81.2860
U3-U4 62.2930 62.3450 108.7760 108.7840
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 60809.29515831
HIERARCH ESO DPR TECH INTERFEROMETRY,DIRECT
HIERARCH ESO OBS TARG NAME HD 172927
HIERARCH ESO INS SOBJ NAME HD172927
RA 280.737106
DEC -1.96243
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 50.922
HIERARCH ESO ISS PBL12 END 51.043
HIERARCH ESO ISS PBLA12 START 22.5
HIERARCH ESO ISS PBLA12 END 22.8
HIERARCH ESO ISS PBL13 START 92.158
HIERARCH ESO ISS PBL13 END 92.44
HIERARCH ESO ISS PBLA13 START 29.5
HIERARCH ESO ISS PBLA13 END 29.8
HIERARCH ESO ISS PBL14 START 120.459
HIERARCH ESO ISS PBL14 END 121.002
HIERARCH ESO ISS PBLA14 START 60.035
HIERARCH ESO ISS PBLA14 END 60.208
HIERARCH ESO ISS PBL23 START 42.087
HIERARCH ESO ISS PBL23 END 42.245
HIERARCH ESO ISS PBLA23 START 38.0
HIERARCH ESO ISS PBLA23 END 38.3
HIERARCH ESO ISS PBL24 START 85.915
HIERARCH ESO ISS PBL24 END 86.222
HIERARCH ESO ISS PBLA24 START 81.23
HIERARCH ESO ISS PBLA24 END 81.286
HIERARCH ESO ISS PBL34 START 62.293
HIERARCH ESO ISS PBL34 END 62.345
HIERARCH ESO ISS PBLA34 START 108.776
HIERARCH ESO ISS PBLA34 END 108.784
HIERARCH ESO ISS AMBI TAU0 START 0.004734
HIERARCH ESO ISS AMBI TAU0 END 0.004856
HIERARCH ESO ISS AMBI TEMP 16.3
HIERARCH ESO ISS AMBI FWHM START 0.81
HIERARCH ESO ISS AMBI FWHM END 0.84